SI23 Inverter Solar Pump

Product Information

Specifications

• Product Name: SI23 Solar Pump VFD
• Chapter 1: Safety Requirement and Cautions
• Chapter 2: Installation and Wiring
• Chapter 3: Keyboard layout and functions specification
• Chapter 4: Fault Diagnosis and Solution
• Chapter 5: Parameters List
• Chapter 6: Operation Guidance

Product Usage Instructions

Chapter 1: Safety Requirement and Cautions

To ensure safety of your health, equipment, and property, please
read this chapter carefully before using the frequency VFD and act
in compliance with the instructions when installing, debugging,
running, and overhauling the frequency VFD.

1.1 Safety Definition

Danger: It will cause danger of serious
injuries and even death while operating against the rules.

Caution: It will cause danger of light injuries
or equipment destruction while operating against the rules.

Note: Some information is useful while
operating and using frequency VFD.

1.2 Safety Requirements and Cautions Before Installation

Danger: The solar pump shall be installed in a
restricted access cabinet or area and is accessed by qualified
electric service personnel only.

Frequently Asked Questions (FAQ)

Q: Can I install the SI23 Solar Pump VFD myself?

A: It is recommended that the installation of the SI23 Solar
Pump VFD be done by qualified electric service personnel to ensure
safety and proper functioning.

Q: What should I do if I encounter a fault with the VFD?

A: Refer to Chapter 4 of the manual for fault diagnosis and
solutions. If the issue persists, contact customer support for
further assistance.

SI23 Solar Pump VFD Manual

Contents

Chapter 1 Safety Requirement and Cautions…………………………………………………….1

1.1

Safety Definition …………………………………………………………………….1

1.2

Safety Requirements and Cautions ……………………………………………1

1.3

Cautions in Using …………………………………………………………………..4

1.4

Technical Specification ……………………………………………………………4

1.5

Cautions in Disposal……………………………………………………………….8

Chapter 2 Installation and Wiring ……………………………………………………………………9

2.1 Dimension of VFD ……………………………………………………………………………9

2.2 Solar Pump Controller Wiring…………………………………………………………..14

2.3 Recommended main circuit components specification…………………………15

2.4 Main circuit wiring of solar VFD………………………………………………………..16

Chapter 3 Keyboard layout and functions specification ……………………………………18

Chapter 4 Fault Diagnosis and Solution …………………………………………………………19

Chapter 5 Parameters List …………………………………………………………………………..24

Function code……………………………………………………………………………………………41

Function name…………………………………………………………………………………………..41

Setting range and definition…………………………………………………………………………41

Default setting …………………………………………………………………………………………..41

Chapter 6 Operation Guidance……………………………………………………………………..43

6.1 Asynchronous Motor Pump Drive Operation Guidance…………………………43

6.2 Synchronous Motor Pump Drive Operation Guidance…………………………..43

6.3 PV Water Pump Features…………………………………………………………………44

I

SI23 Solar Pump VFD Manual
Chapter 1 Safety Requirement and Cautions
To ensure safety of your health, equipment and property, please read this chapter carefully before using the frequency VFD and act in compliance with the instructions when installing,debugging, running and overhauling the frequency VFD.
1.1 Safety Definition
Danger: it will cause danger of serious injuries and even death while operating against the rules. Caution: it will cause danger of light injuries or equipment destruction while operating against the rules. Note: some information is useful while operating and use frequency VFD.
1.2 Safety Requirements and Cautions Before Installation
Danger 1.The solar pump shall be installed in restricted access cabinet or area and is accessed by qualified electric service personnel only.
Danger 1.To reduce the risk of electric shock, do not perform any servicing other than that specified in the operating instructions unless you are qualified to do so.
Installation
Danger 1. Please install the frequency VFD on metal or other nonflammable material, and keep it away from the combustible
material. Otherwise there is danger of fire. 2. No unauthorized modification to the frequency VFD; Otherwise there is danger of damaged. 3. Normal frequency VFD, which is not explosion-proof, can not be installed where with explosive gas or dust; Otherwise
there is danger of explosion.
Attention 1. When two frequency VFDs are installed in the same control cabinet, pleas pay attention to the installing place to guarantee
the effective heat dissipation. 2. When carrying the frequency VFD, ease support its bottom.
Wiring
Danger 1. Wire is connected only when the main circuit is cut off, otherwise there is a danger of shock. 2. Wire is connected by professional person only. Otherwise there is a danger of shock. 3. Earth must be reliable. Otherwise there is a danger of shock. 4. AC power supply should not be connected with output ports U, V, W, otherwise there is a danger of damage to frequency
VFD. 5. No drop of bolt, spacer, metal stick, conducting wire or other things into the inner of frequency VFD; Otherwise there is a
danger of fire or damage to frequency VFD.
1

SI23 Solar Pump VFD Manual
Attention 1. If the damage to frequency VFD or other equipment is caused by improper wiring and utilization or unauthorized alteration,
the user should shoulder all responsibilities. 2. Please make sure all wirings meet EMC requirement and satisfy safety standard in the local area; Please refer to
recommendations in this manual or national standards of wire diameter to avoid accidents. 3. Static electricity on human body would seriously damage internal MOS transistor, etc. No touch the printed circuit boards,
IGBT or other internal devices without anti-static measure, otherwise it will cause the malfunction of frequency VFD. 4. Please don’t connect phase shifter capacitance or LC/RC noise filter to the output circuit of frequency VFD; Otherwise it
will damage the frequency VFD. 5. Please don’t connect the magnetic switch or magnetic contactor to the output circuit of frequency VFD; When frequency
VFD is in the operation with load, magnetic switch or magnetic contactor can make VFD over-current protection function act. It will damage frequency VFD seriously. 6. Please don’t disassemble the panel cover, it only needs to disassemble the terminal cover when wiring. 7. It is forbidden to do any pressure test on frequency VFD, otherwise it will damage the frequency VFD.
Before Electrification
Danger 1. Please make sure that voltage grade of power supply is consistent with frequency VFD’s voltage and then check whether
the wiring is correct and firm, and whether there is short circuit in peripheral equipment’s circuit. Otherwise it will damage frequency VFD and other equipment. 2. Before the frequency VFD is connected to the input power supply, make sure that the cover has been well fixed. Otherwise it will cause electric shock. 3. For the frequency VFDs whose storage time is over 1 year, when electrification, the voltage should be raised by booster from low to high. Otherwise it will damage the frequency VFD.
Attention 1. Check if all periphery fittings are wired properly according to the handbook; Otherwise it will cause accidents.
After Electrification
Danger 1. After electrified, it is forbidden to open the cover, make wiring, and check up; Otherwise, it will cause the danger of electric
shock. 2. After electrified, it is forbidden to contact internal wiring board and its parts. Otherwise it will cause the danger of electric
shock. 3. Do not operate or touch frequency VFD with wet hand. Otherwise there is danger of damage to frequency VFD and
electric shock.
Attention 1. Please set the parameter of frequency VFD cautiously; Otherwise it will damage equipment.
2

SI23 Solar Pump VFD Manual
Operation
Danger 1. Before running, please check and confirm the application range of the machine and equipment once more; Otherwise it will
cause accidents. 2. Please don’t touch the cooling fan and braking resistance to check the temperature; Otherwise there is a danger of getting
burn. 3. Unprofessional workers are banned to check the signals in the running stage; Otherwise it will cause injuries and damage
the equipment.
Attention 1. Please don’t turn off the equipment by switching off power; Please cut off the power supply after the electric machine stops
running; Otherwise it will damage the frequency VFD. 2. Please avoid anything dropping into the equipment when the frequency VFD is running; Otherwise it will cause electric
shock.
Maintenance
Danger 1. Please don’t maintain and repair the equipment with electric; Otherwise it will cause electric shock. 2. Before maintaining and repairing the frequency VFD, please make sure the indicator lights of power supply have completely
turned off; Otherwise it may cause electric shock and damage the frequency VFD. 3. Persons who have not passed specialized train are not allowed to conduct the frequency VFD maintenance; Otherwise it
may cause electric shock and damage the frequency VFD.
Installation Instruction in IP54 Cabinet
Note: 1. This VFD should be installed in IP54 cabinet by the professional engineers as the above pictures. 2. The whole controller should be maintained regularly by the professional engineers or authorized persons. 3

SI23 Solar Pump VFD Manual

1.3 Cautions in Using
1. In application of this series frequency VFD, you have to confirm all machine insulation to prevent damage to the equipment. Moreover, when the motor working in tough environment, please periodic inspect the electrical insulation to ensure the safety of the system work.
2. If the motor adapter is not consistent with frequency VFD’s rating current (The rating current of the motor is far smaller than that of frequency VFD), please adjust the protective value to ensure safe running.
3. In occasions such as load raises, usually there is negative torque and frequency VFD breaks off for over-current or over-voltage. In this case, you should consider choosing the matching brake unit.
4. Frequency VFD, in a certain output frequency range, can meet the mechanical resonance of the load equipment. To avoid it, you can set up jumping frequency.
5. As output voltage of the VFD is pulse-wave type, if there is capacity which can improve power factor or pressure-sensitive resistance which used for thunder-proof in the voltage output side, the frequency VFD will break off or its parts will be damaged, so it is necessary to dismantle them. Moreover, it is proposed not install switch parts like air switch and contactor (if it is necessary to install switch on output side, please make sure the output electricity of frequency VFD is zero when the switch is working).
6. At over 1,000 meters altitude, the VFD’s heat dissipation function worsened due to the thin air, it is necessary to use less. 7. The VFD output voltage is pulse wave type. If using digital multi-meter measurement, deviation of the reading will be great.
And the deviation is different by using different type of digital multi-meter. Under normal circumstances, while RMS 380V, digital multi-meter reading is around 450V. 8. Solar panel can be connected in the series or parallel. For rated voltage 380V controller, we suggest working voltage between 480V and 560V while MPPT. What means the solar panel open circuit voltage should be between 600V and 700V.
1.4 Technical Specification

Solar pump VFD specification

Power input
Output

Items
Voltage, frequency
Output voltage Output frequency
range
Output frequency accuracy

specifications DC Input: D5:250VDC800VDC Output under rated condition: 3 phase, 0Vac380Vac, deviation<10% G/P type: rated output frequency 50Hz (0~600Hz frequency conversion)
Max frequency ±0.5%

G type: 150% rated current/1 min, 180% rated current/10s, 200% rated current/0.5s Overload capacity P type: 120% rated current/1 min, 140% rated current/10s, 150% rated current/0.5s

Main control performance

Motor type Control mode Modulation Carrier frequency

Three-phase asynchronous motor; Permanent magnet synchronous motor (sine V/F control, Open loop vector control, Closed loop vector control Optimizing Space Voltage Vector PWM Modulation 1.0kHz16.0kHz
4

SI23 Solar Pump VFD Manual

Speed control Steady speed Starting torque Torque response
Frequency Frequency Torque control DC braking
Torque boost capacity

VC without PG: rated load 1:100; VC with PG: rated load 1:1000 VC without PG: 2% rated synchronized speed; VC with PG: 0.05% rated VC without PG: 150% rated torque at 0.5Hz; VC with PG: 0Hz, 200% rated torque VC without PG:<20ms; VC with PG: <10ms
Digital setting: max frequency×±0.01%; Analog setting: max frequency×±0.2%
Digital setting: 0.01Hz; Analog setting: max frequency×0.05% Torque setting calculation, torque mode speed limit Starting frequency:0.00Hz50.00Hz; Braking time:0.0s60.0s; Braking
Automatic torque boost 0.0%100.0%; Manual torque boost 0.0%30.0%

V/F curve
Acceleration/Decel eration curve

Four modes: linear torque characteristic curve, self-set V/F curve, torque reduction characteristic curve (1.1 to 2.0 power), square V/F curve
2 modes: linear Acceleration/Deceleration and S curve Acceleration/Deceleration. 4 sets of ACC/DEC, time unit 0.01s selectable, longest time: 650.00s.

Rated output voltage

Using the power supply voltage compensation function, the rated voltage of the motor is 100%, which can be set within the range of 50 to 100% (the output cannot exceed the input voltage).

Voltage auto-adjustment

While power supply voltage fluctuates, it can auto-keep constant output voltage.

Basic functions

Auto energy-saving Auto-limit current
Instant power off treatment

While under V/F control mode, according to load situation, auto-optimize output voltage to save energy. Auto-limit the current while running to prevent over current break trouble.
Uninterrupted operation through bus voltage control during instantaneous power loss.

Standard functions

PID control, speed track, power off restart, jump frequency, upper/lower frequency limit control, program operation, multi- speed, RS485, analog output, frequency impulse output.

Frequency setting channels
Feedback input channel
Running command channel
Input command signal
External output signal
Protection function

Keyboard digital setting, Analog voltage/current terminal AI1, Analog voltage/current terminal AI2, Communication given and multi-channel terminal selection, Main and auxiliary channel combination, expansion card, supporting different modes switch.
Voltage/Current Terminal AI1, Voltage/Current Terminal AI12, Communication given, Low-speed pulse input PUL, extension card.
Operation panel given, external terminal given, communication given, expansion card given.
Start, stop, FWD/REV, JOG, multi-step speed, free stop, reset, ACC/DEC time selection, frequency given channel selection, external fault alarm. 1 relay output, 1 collector output, 1 AO output: 0V10V output or 4mA20mA output.
Overvoltage, under-voltage, current limit, over-current, overload, electric thermal relay, overheat, overvoltage stall, data protection, rapid speed protection, input/output phase failure protection.

Keyboard display

LED display

Built-in keyboard: single line 5- digital tube display
External keyboard: double line 5- digital tube

monitor 1 VFD status quantity Monitor 2 VFD status quantities

5

SI23 Solar Pump VFD Manual

Environment

Parameter copy
Status monitor
Error alarm
Install place
Temperature, humidity Vibration Operation
temperature Storage
temperature Installation Application Over voltage category Pollution
degree Protection class Ingress Protection Cooling method

Upload and download function code information of the VFD for fast parameter copying. Output frequency, given frequency, output current, input voltage, output voltage, motor speed, PID feedback, PID given value, module temperature etc. monitor parameters.
Over-voltage, under-voltage, over-current, short circuit, phase failure, overload, overheat, overvoltage stall, current limit, or Data protection compromised, current fault health, historical fault record . The altitude is less than 1000 meters, and the derating is more than 1000 meters. The derating is 1% for every 100 meters. No condensation, icing, rain, snow, hail, etc., solar radiation is less than 700W/m², air pressure 70 kPa106kPa. -10°C+50°C, derating can be used above 40 °C, the maximum temperature is 60 °C (no-load operation), 5%~95%RH(no condensation) 5% to 95% RH (no condensation). 9Hz200Hz,5.9m/s²(0.6G)
— -10+50
-30+60
Wall hanging Indoor control system.
OVC II
PD 2
Class I IP20 Forced air cooling

NoteThe solar pump vfd is intended for installation within a closed electrical operating area.

Model Naming

SI23 – D5 – 004 G -A

Product Series

SI

Solar Pump VFD

23

Series No.

Type

DC156V,suitable for

D1

driving AC110V pump

D3

DC311V,suitable for

driving AC220V pump

D5

DC540V,suitable for

driving AC380V pump

T3

DC540V,suitable for

driving AC380V pump

Power

Suitable

Code

Pump

004 0.75kw

5R5

1.5kw

7R5

2.2kw

Type

Suitable

Code

Pump

G

Heavy

Load

P

Light

Load

Logo

A

VEICHI Logo

Blank Logo

6

SI23 Solar Pump VFD Manual

System Specification

Solar pump VFD power
(kW)
0.75 1.5
0.75 1.5 2.2 4 5.5 7.5 11 15 18.5 22 30 37 45 55
0.75 1.5 2.2 4 5.5 7.5 11 15 18.5 22 30
37 45 55 75 90 110 132 160 185 200 220 250

Pump

Rated power (kW)

Rated voltage
(V)

Max solar power input (kW)

Max DC input voltage (V)

Recommend Voc voltage
(V)

Rated output current
(A)

SI23-D1 series,60VDC-400VDC input, 3 phase 110VAC-230VAC output

0.75

110

1.0

400

175~380

7A

1.5

110

1.95

400

175~380

10A

SI23-D3 series,150VDC-450VDC input, 3 phase 220VAC-240VAC output

0.75

220

1.0

450

360~430

4A

1.5

220

1.95

450

360~430

7A

2.2

220

2.86

450

360~430

10A

4

220

5.4

450

360~430

16A

5.5

220

8

450

360~430

20

7.5

220

10

450

360~430

30

11

220

14.3

450

360~430

42

15

220

19.5

450

360~430

55

18.5

220

23.4

450

360~430

70

22

220

28.6

450

360~430

80

30

220

39

450

360~430

110

37

220

48.1

450

360~430

130

45

220

58.5

450

360~430

160

55

220

71.5

450

360~430

200

SI23-D5 series, 250VDC-780VDC input, 3 phase 380VAC-460VAC output

0.75

380

1.0

780

620750

3.0

1.5

380

2.2

780

620750

4.0

2.2

380

3.3

780

620750

6.0

4

380

5.6

780

620750

10

5.5

380

8

780

620750

13

7.5

380

10

780

620750

17

11

380

14.3

780

620750

25

15

380

19.5

780

620750

32

18.5

380

23.4

780

620750

38

22

380

28.6

780

620750

45

30

380

39

780

620750

60

SI23-T3 series,350VDC-780VDC input,3phase 380VAC-440VAC output

37

380

48.1

780

620750

75

45

380

58.5

780

620750

90

55

380

71.5

780

620750

110

75

380

97.5

780

620750

150

90

380

121.5

780

620750

180

110

380

148.5

780

620750

210

132

380

178.2

780

620750

250

160

380

216

780

620750

310

185

380

249.75

780

620750

340

200

380

270

780

620750

380

220

380

297

780

620750

415

250

380

337.5

780

620750

470

7

Output frequency
(Hz)
0-600 0-600
0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600
0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600
0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600 0-600

SI23 Solar Pump VFD Manual

280

280

380

378

780

620750

510

0-600

315

315

380

425.25

780

620750

600

0-600

355

355

380

479.25

780

620750

670

0-600

400

400

380

540

780

620750

750

0-600

450

450

380

607.5

780

620750

810

0-600

500

500

380

675

780

620750

860

0-600

560

560

380

756

780

620750

990

0-600

630

630

380

850.5

780

620750

1100

0-600

710

710

380

958.5

780

620750

1260

0-600

1.5 Cautions in Disposal
When you dispose frequency VFD, please pay attention to: 1. Electrolytic capacitor: the electrolytic capacitor of main circuit or the printing plate may explode when they are burned. 2. Plastic: plastic incineration may generate toxic gases. 3. Dispose method: please dispose as industrial waste.

8

SI23 Solar Pump VFD Manual

Chapter 2 Installation and Wiring
2.1 Dimension of VFD
Overall Dimension of VFD (Plastic)

D

W

D1

W1

A

Installation Diameter B

H

H1

H2

MODEL
SI23-D3-R75G-A SI23-D3-1R5G-A SI23-D3-2R2G-A SI23-D3-004G-A SI23-D5-R75G-A SI23-D5-1R5G-A SI23-D5-2R2G-A SI23-D5-004G-A SI23-D5-5R5G-A SI23-D5-7R5P-A SI23-D5-7R5G-A SI23-D5-011P-A SI23-D5-011G-A SI23-D5-015P-A

Overall Dimension(mm)

W H

H1

D D1

W2
Installation Dimension(mm) W1 W2 H2 A B

Aperture

76 200 192 155 149 65 65 193 5.5 4

3-M4

100 242 231 155 149 84 86.5 231.5 8 5.5 3-M4

76 200 192 155 149 65 65 193 5.5 4

3-M4

100 242 231 155 149 84 86.5 231.5 8 5.5 3-M4

116 320 307.5 175 169 98 100 307.5 9

6

3-M5

9

D

W

D1

H

H1

SI23 Solar Pump VFD Manual
Installation Diameter
W1 B
H2

MODEL SI23-D5-015G-A SI23-D5-018P-A SI23-D5-018G-A SI23-D5-022P-A SI23-D5-022G-A SI23-D5-030P-A SI23-D5-030G-A SI23-T3-037P-A SI23-T3-037G-A SI23-T3-045P-A

W2

Overall Dimension(mm)

W H

H1

D D1

Installation Dimension(mm)

W1 W2

H2

B

Aperture

142 383 372 225 219 125 100 372

6

4-M5

172 430

/

255 219 150 150 416.5 7.5

4-M5

10

Overall Dimension of VFD (Steel)

W

D

SI23 Solar Pump VFD Manual

W1

Installation Diameter

H

H2

H1

MODEL
SI23-T3-045G-A SI23-T3-055P-A SI23-T3-055G-A SI23-T3-075P-A SI23-T3-075G-A SI23-T3-090P-A SI23-T3-090G-A SI23-T3-110P-A SI23-T3-110G-A SI23-T3-132P-A SI23-T3-132G-A SI23-T3-160P-A SI23-T3-160G-A SI23-T3-185P-A SI23-T3-185G-A SI23-T3-200P-A SI23-T3-200G-A SI23-T3-220P-A SI23-T3-220G-A SI23-T3-250P-A SI23-T3-250G-A SI23-T3-280P-A

Overall Dimension(mm)

W

H

H1

D

Installation

Dimension(mm)

W1

H2

Aperture

240

560

535

310

176

544

4-M6

270

638

580

350

195

615

4-M8

350

738

680

405

220

715

4-M8

360

940

850

480

200

910

4-M16

370

1140

1050

545

200

1110

4-M16

11

SI23-T3-280G-A SI23-T3-315P-A SI23-T3-315G-A SI23-T3-355P-A SI23-T3-355G-A SI23-T3-400P-A SI23-T3-400G-A SI23-T3-450P-A SI23-T3-450G-A SI23-T3-500P-A SI23-T3-500G-A SI23-T3-560P-A SI23-T3-560G-A SI23-T3-630P-A

SI23 Solar Pump VFD Manual

400

1250

1140

545

240

1213

4-M16

460

1400

1293

545

300

1363

4-M16

12

Dimension of VFD (Cabinet) W

SI23 Solar Pump VFD Manual D

H1 H

W1 D1

MODEL
SI23-T3-630G-A SI23-T3-710P-A SI23-T3-710G-A SI23-T3-800P-A

Overall Dimension(mm)

W

H

H1

D

Installation

W1

H2

Aperture

800

1900

1800

700

564

626

14

13

2.2 Solar Pump Controller Wiring

Standard Connection Diagram

PV modules

DC breaker

Multiple Functional Contact Input

(FWD) (REV) (Water full detection alarm) (Water full detection reset) (Free stop)
RS485 Communication
Analog Voltage/Current Input 1 Analog Voltage/Current Input 2
Note1 +10V Max.Output:50mA

Analog Input

PV+
PV+24V GND

VFD

X1 X2 X3 X4
X5
COM A+
120
B-

+10V AI1 AI2 GND

SI23 Solar Pump VFD Manual

Passive Contact Output

Output Reactor U V W

U
VM ~
W

E

(The grounding resistance is

less than10)

MAX Output:

TA
Coil

5A/30VDC

TB

TC

+24V
Coil
Y
COM Note 1 +24V Max. Output:DC24V/100mA 2 Y Max. Output:DC24V/50mA
10
m_A
+-
AO1 GND

0

20

Open Collector State Ouput

Analog Monitoring Signal Output

Note: 1.When connect solar panel, please connect PV+/PV-.

2.The communication interface of the PCE is considered as DVC A. The external signal communication interface is

considered as SELV. The compatibility shall be considered when the communication interfaces are connected.

Auxiliary Terminal Output Capacity

Terminal +10V
A0
+24V Y
TA/TB/TC

Function Definition 10V auxiliary power supply output, constitutes loop with GND.
Analog monitor output, constitutes loop with GND.
24V auxiliary power supply output, constitutes loop with COM. Collector open circuit output; can set the action-object by program. Passive connector output; can set the action-object by program.

Max Output 50mA Max output 2mA as frequency, voltage signal 100mA DC24V/50mA 5A/30VDC

14

SI23 Solar Pump VFD Manual

Function Specification of Switch Terminals

Switch Terminal

Selecting Position RS485 Terminal Resistor AO-F Output- frequency AO-I Output- Current AO-U Output- Voltage AI1 Input- Current/Voltage AI2 Input- Current/Voltage

Function Specification RS485 Communication :connect with 120 terminal resistor 0kHz100kHz frequency output 0mA20mA current output or 4mA20mA current output 0V10V voltage output AI1: Input 0mA20mA or 0V10V AI2: Input 0mA20mA or 0V10V

2.3 Recommended main circuit components specification

Model SI23-D5-R75G-A SI23-D5-1R5G-A SI23-D5-2R2G-A SI23-D5-004G-A SI23-D5-5R5P-A SI23-D5-5R5G-A SI23-D5-7R5P-A SI23-D5-7R5G-A SI23-D5-011P-A SI23-D5-011G-A SI23-D5-015P-A SI23-D5-015G-A SI23-D5-018P-A SI23-D5-018G-A SI23-D5-022P-A SI23-D5-022G-A SI23-D5-030P-A SI23-D5-030G-A SI23-T3-037G-A SI23-T3-045G-A SI23-T3-055G-A SI23-T3-075G-A SI23-T3-090G-A SI23-T3-110G-A SI23-T3-132G-A SI23-T3-160G-A SI23-T3-185G-A SI23-T3-200G-A SI23-T3-220G-A SI23-T3-250G-A SI23-T3-280G-A SI23-T3-315G-A SI23-T3-355G-A

Contactor Specification 10A 10A 16A 16A 25A 25A 25A 25A 32A 32A 40A 40A 50A 50A 50A 50A 63A 63A 80A 100A 125A 160A 220A 220A 250A 300A 400A 400A 630A 630A 630A 630A 800A

Circuit Breaker Specification 10A 10A 15A 20A 20A 20A 30A 30A 40A 40A 50A 50A 60A 60A 75A 75A 100A 100A 125A 150A 175A 200A 250A 300A 400A 500A 600A 700A 800A 1000A 1200A 1200A 1400A

15

SI23-T3-400G-A SI23-T3-450G-A SI23-T3-500G-A SI23-T3-560G-A SI23-T3-630G-A SI23-T3-710G-A
2.4 Main circuit wiring of solar VFD

1000A 1000A 1000A 1200A 1200A 1400A

Model
SI23-D1-R75G-A SI23-D1-1R5G-A SI23-D3-R75G-A SI23-D3-1R5G-A SI23-D3-2R2G-A SI23-D3-004G-A SI23-D3-5R5G-A SI23-D3-7R5G-A SI23-D3-011G-A SI23-D3-015G-A SI23-D3-018G-A SI23-D3-022G-A SI23-D3-030G-A SI23-D3-037G-A SI23-D3-045G-A SI23-D3-055G-A
SI23-D5-R75G-A
SI23-D5-1R5G-A SI23-D5-2R2G-A SI23-D5-004G-A SI23-D5-5R5P-A SI23-D5-5R5G-A SI23-D5-7R5P-A SI23-D5-7R5G-A SI23-D5-011P-A SI23-D5-011G-A SI23-D5-015P-A SI23-D5-015G-A SI23-D5-018P-A SI23-D5-018G-A SI23-D5-022P-A SI23-D5-022G-A SI23-D5-030P-A

Specifications of Screws for Main Circuit Terminal (mm)
M3 M3.5 M3 M3 M3.5 M3.5 M4 M6 M6 M6 M6 M6 M8 M8 M8 M8
M3
M3 M3 M3.5 M3.5 M3.5 M4 M4 M4 M4 M6 M6 M6 M6 M6 M6 M6

SI23 Solar Pump VFD Manual
1600A 2000A 2000A 2000A 2000A 2000A

Recommended Fixed Torque
(N·m) 0.8~1.0 1.2~1.5 0.8~1.0 0.8~1.0 1.2~1.5 1.2~1.5 1.2~1.5
4~6 4~6 4~6 4~6 4~6 8~10 8~10 8~10 8~10
0.8~1.0
0.8~1.0 0.8~1.0 1.2~1.5 1.2~1.5 1.2~1.5 1.2~1.5 1.2~1.5 1.2~1.5 1.2~1.5
4~6 4~6 4~6 4~6 4~6 4~6 4~6

Specifications of Recommended Copper Core Cable (mm2) (AWG) 2.5mm2(12) 4mm2(10) 2.5mm2(12) 2.5mm2(12) 4mm2(10) 4mm2(10) 10mm2(7) 16mm2(5) 16mm2(5) 25mm2(3) 25mm2(3) 25mm2(3) 35mm2(2) 50mm2(1) 50mm2(1) 70mm2(2/0)
1.5mm2(14)
2.5mm2(12) 2.5mm2(12) 4mm2(10)
6mm2(9) 6mm2(9) 6mm2(9) 6mm2(9) 10mm2(7) 10mm2(7) 10mm2(7) 10mm2(7) 16mm2(5) 16mm2(5) 16mm2(5) 16mm2(5) 25mm2(3)

16

SI23-D5-030G-A

M6

SI23-T3-037G-A

M6

SI23-T3-045G-A

M8

SI23-T3-055G-A

M8

SI23-T3-075G-A

M8

SI23-T3-090G-A

M8

SI23-T3-110G-A

M8

SI23-T3-132G-A

M12

SI23-T3-160G-A

M12

SI23-T3-185G-A

M12

SI23-T3-200G-A

M12

SI23-T3-220G-A

M12

SI23-T3-250G-A

M12

SI23-T3-280G-A

M12

SI23-T3-315G-A

M16

SI23-T3-355G-A

M16

SI23-T3-400G-A

M16

SI23-T3-450G-A

M16

SI23-T3-500G-A

M16

SI23-T3-560G-A

M16

SI23-T3-630G-A

M16

SI23-T3-710G-A

M16

4~6
4~6
8~10 8~10 8~10 8~10 8~10 14~16 14~16 14~16 14~16 14~16 14~16 14~16 20~23 20~23 20~23 20~23 20~23 20~23 20~23 20~23

SI23 Solar Pump VFD Manual
25mm2(3) 25mm2(3)
35mm2(2) 35mm2(2) 50mm2(1) 50mm2(1/0) 70mm2(2/0) 95mm2(3/0) 95mm2(4/0) 120mm2 150mm2 150mm2 185mm2 185mm2 240mm2 240mm2 300mm2 400mm2 400mm2 500mm2 500mm2 500mm2

17

SI23 Solar Pump VFD Manual
Chapter 3 Keyboard layout and functions specification
Keyboard Appearance

Key Function Key

Name

Menu key

Confirm/Shift key

Up/down key

Run key

Function
Enter menu while standby or running. Presses this key to return while modify parameter. While standby or running, press for 1 sec to enter condition monitoring interface.
Press to modify parameter while in menu interface. Press again to confirm after modifying; Press this key for 1 Sec to shift digit, and long press to cycle. Each digit flashes three time to shift to next digit.
Select parameter group in menu interface. Modify parameter in modify state. Modify given frequency, ID given while at standby or monitoring state (While given frequency, PID are set by keyboard and [F4.09] needs to be set.
While run/stop is controlled by keyboard, press this key, VFD forward runs, and the indicator is always on. While reverse, the indicator sparks.

Machine stops if press it while run/stop is controlled by keyboard. Its efficiency range is Stop/reset key defined by [F4.08]. VFD resets if press it in fault state (no reset if fault is not solved).

18

SI23 Solar Pump VFD Manual

Chapter 4 Fault Diagnosis and Solution

This chapter describes the VFD fault, alerts, and operation of the failure on the VFD, the display information on VFD and

countermeasures.
Fault Information and Description in Detail

Keypad display

Fault code

Fault type

Possibility reason

Troubleshooting

E.LU2 E.oU1 E.oU2 E.oU3 E.oU4 E.oC1
E.oC2

Under voltage at runs
Over voltage at acceleration
Over voltage during deceleration
Overvoltage at constant speed Over voltage at stop
Over current during acceleration
Over current during deceleration

Power voltage too low DC main contactor don’t close
Power voltage fluctuation over limit Too start rotating motor
Deceleration time too small The driving load too heavy Power voltage fluctuation over limit
The input voltage is too high An external force drives the motor during deceleration

Check input power to solve Ask support
Check power grid Restart until motor is stop completely, or set [F1.00] set for 1 or 2 Prolong deceleration time Reduce the load, or select bigger capacitor drive, or connect braking unit Check input power Adjust the voltage to normal range Cancel the external force or install the braking resistor

Voltage fluctuate above limit Check the input voltage

Acceleration time is too short To start rotating motor V/F setting not correct or torque boost setting too big Solar drive capacitor is too small The output circuit is grounded or short circuited. Motor auto-tuning is not performed The acceleration time is too short Manual torque boost or V/F curve is not appropriate The voltage is too low

Prolong acceleration time Restart motor when it on still, or set F1.00 for 1 or 2 Reset V/f curve or torque boost setting
Eliminate external faults Perform the motor auto tuning Increase the acceleration time Adjust the manual torque boost or V/F curve Adjust the voltage to normal range Select rotational speed tracking restart or start the motor after it stops

19

SI23 Solar Pump VFD Manual

E.oC3 E.oL1 E.oL2

Over current at constant speed
Motor overload
AC drive overload

The startup operation is performed on the rotating motor A sudden load is added during acceleration The AC drive model is of too small power class The output circuit is grounded or short circuited Motor auto-tuning is not performed The voltage is too low A sudden load is added during operation The AC drive model is of too small power class Boost torque is too big under VF control ACC. and DEC. time is too short Motor parameters setting is improperly Restart motor which in counter rotate The grid voltage is too lower Load is too big or motor block load AC drive selected is too load Boost torque is too big under VF control ACC. and DEC. time is too short Motor parameters setting is improperly Restart motor which in counter rotate The grid voltage is too lower Load is too big or motor block load AC drive selected is too load

Remove the added load. Select an AC drive of higher power class
Eliminate external faults Perform the motor auto tuning Adjust the voltage to normal range Remove the added load Select an AC drive of higher power class
Reduce boost torque Increase the ACC./DEC. time Reset motor parameters Reduce current limit and adopt speed tracking Check grid voltage Check load condition Change bigger power AC drive
Reduce boost torque increase the ACC./DEC. time reset motor parameters Reduce current limit and adopt speed tracking Too check grid voltage Too check load change bigger power AC drive

20

SI23 Solar Pump VFD Manual

E.SC

System abnormal

E.oH1 VFD over-heat

E.oH2 Rectifier
over-heat

E.TE1 Motor static
detection fault

E.TE2 Motor rotation
detection fault
E.EEP Memory fault LiFE Reserved

Deceleration is too short Short circuit of solar drive output or phase output short circuit to ground Module damage EMC interface Temperature is too high Air channel is blocked Fan connection parts is loose Fan is damaged Temperature detection circuit fault Temperature is too high Air channel is blocked Fan connection parts is loose Fan is damaged Temperature detection circuit fault Detection overtime Start static detection while motor is running Capacitance difference is too big between motor and VFD Motor parameter setting mistake Detect while motor is running Detect with load Detection overtime Capacitance difference is too big between motor and VFD Motor parameter setting mistake Electromagnetic disturb in memory period EEPROM damage

Prolong acceleration time To check peripheral equipment Ask to support Check the wiring layout, cable ground
Make the environment meet the requirement Clear the air channel Check and reconnect the wire Change the same new fan Seek support from factory
Make the environment meeting the requirement Clear the air channel Check and reconnect the wire Change the same new fan Seek support from factory
Check motor connection wire Detect after motor stopping totally Change VFD model Reset parameter according to nameplate
Detect after motor stop totally Re-detect without load Check motor connection wire Change VFD model Reset parameter according to nameplate
Resume load and save Seek support from factory

21

SI23 Solar Pump VFD Manual

E.iLF E.oLF E.Gnd E.HAL E.PAn
E.CE
E.CPE

Input phase loss

3-phase input power open phase

Output phase loss

3-phase output power open phase

Output earth terminal short circuit. Current detection fault
Keyboard connect fault
Unsuitable baud rate setting Communicatio n wire breaks Communicatio n format does not match upper machine.
Parameter copy fault

Check wiring and insulation
Detect circuit fault Phase imbalance Keyboard wire fault Keyboard component damage
Set suitable baud rate setting Check communication wire. Make sure right communication format
Parameter copy communication is fault Copy keyboard does not match the VFD

Check 3-phase power supply and the phase Check 3-phase power supply wiring Check 3-phase output voltage and current Check wiring Output earth Seek support from factory Check motor and wiring Check keyboard wire Seek support from factory
RS485communication fault
Check wire Select the specified external keyboard model

Alarm Information and Description in Detail

Keypad display

Alarm code

Alarm type

Possibility reason

A.LPn

Dormancy Protection

Solar voltage is too low

A.LFr A.LuT

Low Frequency Protection

Output frequency is too low Solar power is not enough

Dry Run Protection

Current is very low Pump load is very low Water is not enough in borehole

Troubleshooting
Check the solar power Check F21.11/F21.12/F21.13 settings Check the solar power Check F21.14/F21.15/F21.16 settings Please check the water level in borehole Check F21.17/F21.18/F21.19 settings

22

SI23 Solar Pump VFD Manual

A.Old

Pump Over Current Protection

Current is higher than set

Check the pump load Check F21.20/F21.21/F21.22 settings

A.LPr

Minimum Power Output power is very low
Protection

A.FuL A.LU1

Water Fulfilled Water tank is fulfilled Protection Bus voltage too low Check the value of the input voltage

Check the solar power Check F21.23/F21.24/F21.25 settings Please check the water tank Check F21.27/F21.28

23

SI23 Solar Pump VFD Manual

Chapter 5 Parameters List

This chapter just provides function parameter table. Specifications refer to SI23 technical manual. Environment setting

Parameter (address)

Function Description

F00.03(0x0003) Initialization

Keyboard F00.04(0x0004)
parameter copy F00.05(0x0005) User password

Range of settings and definition
V/F SVC FVC Set the VFD initialization method 0: Not initialized 11: Select the set value according to the purpose to carry out the parameters (excluding the motor parameters) 22: All parameters are initialized 33: Clear the fault record V/F SVC FVC 0: No function 11: Upload parameters to the keyboard 22: Download parameters to the VFD V/F SVC FVC Used to set the user password.

Factory default (setting range)
0 (033)
0 (09999)
0 (065355)

Basic parameters

Parameter (address)

Function Description

Range of settings and definition

Factory default (setting range)

Motor control F01.00(0x0100)
mode

V/F SVC FVC The way the motor is controlled. 0: AM-VF; VF control 1: AM-SVC; Open loop vector control, current closed loop control 10: PM-VF; VF control 11: PM-SVC; Open-loop vector control 12: PM-FVC; Closed-loop vector control 16: SRM-SVC; Open-loop vector control

0 (020)

Run command F01.01(0x0101)
channel

V/F SVC FVC Used to select the channel that the drive accepts the run and stop commands and the direction of travel. 0: Keyboard control (external keyboard priority) 1: Terminal control 2: RS485 communication control 3: Reserved

0 (03)

Notes Notes

24

SI23 Solar Pump VFD Manual

F01.02(0x0102)

Frequency reference source channel A

V/F SVC FVC The frequency converter sets the given source of the frequency. 0: Keyboard digital given frequency 1: Keyboard analog potentiometer given 2: Current/voltage analog AI given 3: Reserved 4: Reserved 5: Terminal pulse PUL given 6: RS485 communication given 7: Terminal UP/DW control 8: PID control given 9: Program Control (PLC) given 10: Option card 11: Multi-speed speed given

F01.09(0x0109)

Keyboard digital given frequency

V/F SVC FVC Used to set and modify the keyboard digital setting frequency.

Maximum F01.10(0x010A)
frequency

V/F SVC FVC The maximum frequency that the frequency converter can set.

F01.12(0x010C)

Upper limit frequency digital setting

V/F SVC FVC The upper line frequency is given when F01.11 is set to 0.

Lower limit F01.13(0x010D)
frequency Acceleration F01.22(0x0116) time 1 Deceleration F01.23(0x0117) time 1

V/F SVC FVC Given a lower frequency limit, the given frequency is limited.
V/F SVC FVC The time required for the output frequency to accelerate from 0.00 Hz to the time reference frequency. 1s65000s(F01.21 = 0) 0.1s6500.0s(F01.21 =

1. 0.01s650.00s(F01.21 = 2) V/F SVC FVC The time it takes for the output frequency to decelerate from the time reference frequency to 0.00 Hz.

0 (011)
50.00Hz (0.00Hzupper limit frequency
setting) 50.00Hz (upper limit frequency 600.00Hz) 0.00Hz (0.00Hzupper limit frequency digital setting) 0.00Hz (0.00Hzupper limit frequency digital setting)
Model setting (0.01s 650.00s)
Model setting (0.01s 650.00s)

25

Carrier F01.40(0x0128)
frequency

SI23 Solar Pump VFD Manual

V/F SVC FVC Used to set the switching frequency of the VFD IGBT.

4.0kHz (1.0kHz 16.0kHz)

26

SI23 Solar Pump VFD Manual

Motor Parameters

Parameter (address)

Function Description

F02.00(0x0200) Motor type

F02.01(0x0201) Pole number Motor rated
F02.02(0x0202) power

Range of settings and definition
V/F SVC FVC Set the type of motor 0: Asynchronous motor (AM) 1: Reserved V/F SVC FVC Set the number of motor stages.
V/F SVC FVC Set the rated power of the motor.

Motor rated F02.03(0x0203)
frequency

V/F SVC FVC Set the rated frequency of the motor.

Motor rated F02.04(0x0204)
speed

V/F SVC FVC Set the rated speed of the motor.

F02.05(0x0205) F02.06(0x0206) F02.07(0x0207)
F02.50(0x0232)

Motor rated voltage Motor rated current
Motor parameter auto-tuning selection
Motor online learning function selection

V/F SVC FVC Set the rated voltage of the motor.
V/F SVC FVC Set the rated current of the motor. V/F SVC FVC After the parameter auto-tuning is completed, the set value of [F02.07] will be automatically set to “0”. 0: No operation 1: Rotary self-tuning 2: Static self-tuning 3: Stator resistance self-tuning V/F SVC FVC 0: Invalid 1: Power- on self-learning 2: Run the initial segment self-learning 3: Self-learning in operation

Factory default (setting range)
0 (01)
4 (298) Model setting (0.1kW 1000.0kW) Model setting (0.01Hz Maximum frequency) Model setting (0rpm 65000rpm) Model setting (0V1500V) Model setting (0.1A3000.0A)
0 (03)
0 (03)

Notes

27

SI23 Solar Pump VFD Manual

Vector Control

Parameter (address)

Function Description

F03.02(0x0302) F03.03(0x0303) F03.06(0x0306) F03.07(0x0307) F03.10(0x030A) F03.11(0x030B) F03.12(0x030C) F03.13(0x030D)

ASR (speed loop)proportional gain 1 ASR (speed loop) integration time 1 ASR (speed loop)proportional gain 2 ASR (speed loop) integration time 2 Current loop D-axis proportional gain Current loop D-axis integral gain Current loop Q-axis proportional gain Current loop Q-axis integral gain

V/F Control Parameter (address) adjustable attribute

Function Description

Linear VF curve F04.00(0x0400)
selection

F04.01(0x0401) Torque boost

Range of settings and definition
SVC Set the ASR (speed loop) proportional gain 1.
SVC Set the ASR (speed loop) integration time 1.
SVC Set the ASR (speed loop) proportional gain 2.
SVC Set the ASR (speed loop) integration time 2.
SVC Set the current loop D-axis proportional gain.
SVC Set the current loop D-axis integral gain.
SVC Set the current loop Q-axis proportional gain.
SVC Set the current loop Q-axis integral gain.
Range of settings and definition
V/F Used to select the type of V/F curve to meet different load features. 0: Straight line VF curve 1-9: Respectively, a power VF curve of 1.1-1.9 10: Square VF curve 11: Custom VF curve V/F 0.0%: automatic torque boost 0.1%30.0%: manual torque boost

28

Factory default (setting range)
10.00 (0.01100.00)
0.100s (0.000s6.000s)
10 (0.01100.00)
0.100s (0.000s6.000s)
1.000 (0.0014.000)
1.000 (0.0014.000)
1.000 (0.0014.000)
1.000 (0.0014.000)
Factory default (setting range)
0 (011)
0.0% (0.0%30.0%)

Notes Notes

SI23 Solar Pump VFD Manual

I/O Terminals

Parameter (address) F05.00(0x0500)
F05.01(0x0501)

Function Description Terminal X1 function selection Terminal X2 function selection

F05.02(0x0502)

Terminal X3 function selection

F05.03(0x0503)

Terminal X4 function selection

F05.50(0x0532) AI lower limit

F05.51(0x0533)

AI lower limit corresponding setting

F05.52(0x0534) AI upper limit

F05.53(0x0535)

AI upper limit corresponding setting

AO output mode F06.00(0x0600)
selection

F06.01(0x0601) AO output selection

Range of settings and definition
V/F SVC FVC See the function of terminal X for details.
V/F SVC FVC See the function of terminal X for details.
V/F SVC FVC See the function of terminal X for details.
V/F SVC FVC See the function of terminal X for details.
V/F SVC FVC Define the signal received by the terminal. The voltage signal below this value is processed by the limit value. V/F SVC FVC Set the percentage of the corresponding set value V/F SVC FVC Define the signal received by the terminal. The voltage signal above this value is processed according to the upper limit value. V/F SVC FVC Set the percentage of the corresponding set value. V/F SVC 0: 0V10V 1: 4.00mA20.00mA 2: 0.00mA20.00mA 3: Reserved 4: Reserved V/F SVC FVC 0: Given frequency 1: Output frequency 2: Output current 3: Input voltage 4: Output voltage 5: Mechanical speed
29

Factory default (setting range)
1 (063)
2 (063)
4 (063)
8 (063)
0.0% (0.0%100.0%)
0.0% (-100.0%
100.0%) 100.00% (0.00% 100.00%) 100.00% (0.00% 100.00%)
0 (04)
0 (019)

Notes

SI23 Solar Pump VFD Manual

F06.20(0x0614) F06.21(0x0615)

Output terminal polarity selection
Output terminal Y

6: Given torque 7: Output torque 8: PID given 9: PID feedback amount 10: Output power 11: Bus voltage 12: VS input value 13: AI input value 14: AS input value 15: PUL input value 16: Module temperature 1 17: Module temperature 2 18: 485 communication given 19: Virtual terminal vY1 V/F SVC FVC 0: Positive polarity 1: Negative polarity LED “0” digit: Y terminal LED “00” digit: Relay output terminal 1 LED “000” digit: Reserved LED “0000” digit: Reserved
V/F SVC FVC See terminal Y function

Relay 1 output F06.22(0x0616)
(TA-TB-TC)

V/F SVC FVC See terminal Y function

Start/Stop Control

Parameter (address)

Function Description

Range of settings and definition

0000 (00001111)

1 (063)
4 (063)

Factory default (setting range)

Notes

Direction of F07.05(0x0705)
rotation

V/F SVC FVC LED “0” digit: Reverse the running direction. 0: The direction is unchanged 1: Direction reversal LED “00” digit: No direction of operation. 0: Allow forward and reverse commands 1: Only forward commands are allowed 2: Only reverse command is allowed LED “000” digit: Frequency Control Command Direction. 0: The frequency control direction is invalid. 1: Frequency control direction is valid LED “0000” digit: Reserved.

0000 (00001111)

30

SI23 Solar Pump VFD Manual

F07.06(0x0706)

Power failure restart action selection

F07.10(0x070A) Stop mode

Protection Parameters

Parameter (address)

Function Description

Overcurrent F10.00(0x0A00)
suppression

F10.01(0x0A01)

Overcurrent suppression point

F10.12(0x0A0C)

Bus overvoltage suppression point

F10.16(0x0A10)

Bus undervoltage suppression

F10.17(0x0A11)

Bus undervoltage suppression point

V/F SVC FVC 0: Invalid

1: Valid

V/F SVC FVC 0: Deceleration stop

1: Free stop

Range of settings and definition
V/F SVC FVC The automatic limiting output current does not exceed the set overcurrent suppression point to prevent overcurrent faults from being triggered by excessive current. 0: Inhibition is always valid 1: Acceleration/deceleration is valid, constant speed is invalid V/F SVC FVC Set the load current limit level, 100% corresponds to the rated motor current.

V/F SVC FVC Set bus voltage value for trigger overvoltage suppression function.

V/F SVC FVC When the bus voltage is lower than the undervoltage suppression point, the operating frequency is automatically adjusted to suppress the bus voltage from decreasing, preventing the undervoltage fault. 0: Off 1: On

V/F SVC FVC Set bus voltage value for trigger undervoltage suppression function.

0 (01)
0 (01)
Factory default (setting range)
0 (01)
160.0% (0.0%300.0%)
T3: 780 S2: 370 (T3: 650760 S2: 340380) Also subject to overvoltage limit
0 (01)
T3: 430 S2: 240 (T3: 350450 S2: 180260) Also subject to overvoltage limit

Notes
T3 overvoltage point: 820V (750840)
S2 overvoltage point: 400V (360410)
T3 overvoltage point: 820V (750840)
S2 overvoltage point 400V (360410)

31

SI23 Solar Pump VFD Manual

F10.18(0x0A12)

Bus undervoltage suppression gain

V/F SVC Set the response effect of undervoltage suppression.

F10.19(0x0A13)

Bus undervoltage protection point

V/F SVC The lower limit voltage allowed by the set bus voltage. Below this value, the VFD reports an undervoltage fault.

F10.20(0x0A14) F10.22(0x0A16) F10.23(0x0A17)

Input and output phase loss protection options
Ground short circuit protection option
Fan ON/OFF control selection

V/F SVC FVC Set whether the input and output phase loss protection functions are enabled. LED “0” digit: Output phase loss protection. 0: Off 1: On LED “00” digit: Input phase loss protection. 0: Off 1: On, detected the input missing phase report warning A.ILF, continue to run 2: Turn on, detect input missing phase report fault E.ILF, free stop V/F SVC FVC Set whether the VFD output and the VFD cooling fan ground short circuit protection function are enabled. LED “0” digit: Output short circuit protection. 0: Off 1: On LED “00” digit: Fan to ground short circuit protection. 0: Off 1: On Set the VFD cooling fan operation mode. 0: The fan runs after the VFD is powered on. 1: After the shutdown, the fan operation is related to temperature, and the operation is running. 2: After the shutdown, the fan stops after F10.24, and the operation is related to temperature.

100.0% (0.0%500.0%)

T3: 320 S2: 190 (T3: 300400 S2: 160240) Also subject to overvoltage limit

T3 overvoltage point: 820V (750840)
S2 overvoltage point 400V (360410)

021 (000121)

11 (0012)
1 (02)

32

SI23 Solar Pump VFD Manual

Failure F10.50(0x0A32)
self-recovery

F10.51(0x0A33)

Failure self-recovery interval

F10.52(0x0A34)

Numbers of failures recovered

Operation Parameters

Parameter (address)

Function Description

Key lock F11.00(0x0B00)
selection

Key lock F11.01(0x0B01)
password

F11.11(0x0B0B)

Parameter 1 showed up on first line of the keyboard

F11.12(0x0B0C)

Parameter 2 showed up on first line of the keyboard

F11.13(0x0B0D)

Parameter 3 showed up on first line of the

V/F SVC FVC Set the number of fault self-recovery that is allowed to be performed. Note: A value of 0 indicates that the fault self-recovery function is turned off; otherwise it indicates that the function is enabled. V/F SVC FVC Set the waiting time before the VFD resets to the time before each reset. V/F SVC FVC Indicates the number of self-recovery faults that have been performed. This parameter is a read-only parameter.
Range of settings and definition
V/F SVC FVC 0: Not locked. 1: Keyboard function parameter modification lock. 2: Function parameters and non-start stop button lock. 3: Function parameters and button full lock.
V/F SVC
V/F SVC FVC LED “0” and “00” digit: Setting yy setting in monitoring parameter number Cxx.yy 0063. LED “000” and “0000” digit: Monitoring parameter number Cxx.yy xx setting 0007. V/F SVC FVC LED “0” and “00” digit: Setting yy setting in monitoring parameter number Cxx.yy 0063. LED “000” and “0000” digit: Monitoring parameter number Cxx.yy xx setting 0007. V/F SVC FVC LED “0” and “00” digit: Setting yy setting in monitoring parameter number Cxx.yy
33

0 (010)
1.0s (0.0s100.0s)
0
Factory default (setting range)
0 (03)
0 (065535)
0000 (00000763)
0001 (00000763)
0002 (00000763)

Notes

SI23 Solar Pump VFD Manual

keyboard

F11.14(0x0B0E)

Parameter 4 showed up on first line of the keyboard

F11.20(0x0B14)

Keyboard display item settings

Communication Parameters

Parameter (address)

Function Description

Master-slave F12.00(0x0C00)
choice

F12.01(0x0C01)

Modbus communication address

Modbus data F12.03(0x0C03)
format

0063. LED “000” and “0000” digit: Monitoring parameter number Cxx.yy xx setting 0007. V / F SVC LED “0” and “00” digit: Monitor parameter number Cxx.yy YY setting 0063. LED “000” and “0000” digit: Monitoring parameter number Cxx.yy XX setting 0007. V/F SVC FVC LED “0” digit: Output frequency display selection. 0: Target frequency 1: Operating frequency LED “00” digit: Reserved. 0: Invalid 1: Active power to remove stator resistance loss LED “000” digit: Power Display Dimensions. 0: Power display percentage (%) 1: Power display kilowatt (kW) LED “0000” digit: Reserved
Range of settings and definition
V/F SVC FVC 0: Slave 1: Host
V/F SVC FVC
V/F SVC FVC 0: (N, 8, 1) no parity, Data bits: 8, Stop position: 1 1: (E, 8,

1. even parity, Data bits: 8, Stop position: 1 2: (O, 8, 1) odd parity, Data bits: 8, Stop position: 1

0011 (00000763)
0000 (00001111)
Factory default (setting range)
0 (01)
1 (1247)
0 (05)

Notes

34

SI23 Solar Pump VFD Manual

Monitoring parameters

3: (N, 8, 2) no parity, Data bits: 8, Stop position: 2 4: (E, 8, 2) even parity, Data bits: 8, Stop position: 2 5: (O, 8, 2) odd parity, Data bits: 8, Stop position: 2

Parameter code (address)

Function Description

Content

Signal level of multi-function analog output

C00.00 (0x2100) Given frequency

V/F SVC 10V corresponds to the maximum frequency

C00.01 (0x2101) Output frequency

V/F SVC 10V corresponds to the maximum frequency

C00.02(0x2102) Output current

10V corresponds to the rated current of the V/F SVC
double motor (5A)

C00.03 (0x2103) Input voltage

V/F SVC 10V corresponds to 380V

C00.04 (0x2104) The output voltage

10V corresponds to the rated voltage of the V/F SVC
motor 360V

C00.05 (0x2105) Mechanical speed

10V corresponds to the maximum frequency of V/F SVC
mechanical speed

C00.08 (0x2108) C00.09 (0x2109) C00.10 (0x210A) C00.11 (0x210B) C00.12 (0x210C) C00.14 (0x210E) C00.15 (0x210F) C00.16(0x2110) C00.20 (0x2114) C00.23 (0x2117)

PID given PID feedback Output Power Bus voltage Module temperature 1 Input terminal X is on Output terminal Y is on Analog AI input value Analog output AO Power-on running time

V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC

10V corresponds to 100% 10V corresponds to 100% 5V corresponding rated bus voltage 10V corresponds to 100
10V corresponds to 10V

Accumulated running C00.24 (0x2118)
time of the machine

V/F SVC

C00.25 (0x2119) C00.26 (0x211A) C00.27 (0x211B) C00.28 (0x211C)

VFD power level VFD rated voltage VFD rated current Software version

V/F SVC V/F SVC V/F SVC V/F SVC

Notes

35

Fault Monitor

Parameter code (address)

Function Description

Content

C01.00 (0x2200) C01.01 (0x2201) C01.02 (0x2202) C01.03 (0x2203) C01.04 (0x2204) C01.05 (0x2205) C01.06 (0x2206) C01.07 (0x2207) C01.08 (0x2208) C01.09 (0x2209)

Fault type diagnostic information Troubleshooting information Fault operating frequency Fault output voltage Fault output current Fault bus voltage Faulty module temperature Faulty VFD status Fault input terminal status Fault output terminal status

I/O Terminals Function Table

V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC V/F SVC

X Functional interpretation

X

Functional interpretation

0 No function

21 PID control pause

1 Forward running

22 PID characteristic switching

2 Reverse run

23 PID parameter switching

3 Three-wire operation control

24 PID given switch 1

4 Forward turn

25 PID given switch 2

5 Reverse jog

26 PID given switch 3

6 Free parking

27 PID feedback switching 1

7 Emergency pull over

28 PID feedback switching 2

8 Fault reset

29 PID feedback switching 3

9 External fault input

30 Program run (PLC) pause

10 Frequency increment (UP) 11 Frequency decrement (DW) 12 Frequency increment 13 Channel A switches to

31 Program run (PLC) restart 32 Acceleration/deceleration time 33 Acceleration/deceleration time 34 Suspension acceleration

Switch the frequency channel

14

35 Swing frequency input

combination to A

Switch the frequency channel

15

36 Swing frequency pause

combination to B

16 Multi-speed terminal 1 17 Multi-speed terminal 2

37 Swing frequency reset 38 Keyboard button and display

18 Multi-speed terminal 3

39 X4 frequency measurement

36

SI23 Solar Pump VFD Manual

Signal level of multi-function analog output

Notes

X

Functional interpretation

42 Counter clock input terminal 43 Counter clear terminal 44 DC brake command 45 Pre-excitation command 46 Reserved 47 Reserved 48 Command channel switch to 49 Command channel switch to 50 Command channel switch to 51 Command channel switch to 52 Run prohibition 53 Forward prohibition 54 Reverse prohibition 55 Reserved

56 Reserved

57 Zero servo command
58 Run output blocking 80 Water fulfilled detection alarm 81 Water fulfilled detection reset

19 Multi-speed terminal 4

20 PID control canceled

Y

Functional interpretation

0 No output

1 The VFD is running

2 VFD running in reverse

3 The VFD is running in

4 Fault trip alarm 2 (no alarm

5 Fault trip alarm 2 (no alarm

6 External downtime

7 VFD is under-voltage

8 The VFD is ready for

9 Output frequency level

10 Output frequency level

11 Arrived at a given frequency

12 Zero speed operation

13 Upper limit frequency is

SI23 Solar Pump VFD Manual

40 Timer trigger terminal

82 Hybrid input

41 Timer clear terminal

83 Dry run protection input

Y

Functional interpretation

Y

Functional interpretation

14 Lower limit frequency is reached 28 Underload pre-alarm output 2

15 Program run cycle is completed 29 VFD is warning

16 The running phase of the

30 Communication address

17 PID feedback exceeds the upper 31 VFD overheat warning

18 PID feedback is below the lower 32 Motor overheat alarm output

19 PID feedback sensor

33 Frequency (speed) is

20 Meter length arrives

34 Any frequency (speed) is

21 Timer time is up

35 Frequency detection 1

22 Counter reaches maximum

36 Frequency detection 2

23 Counter reaches the set value

37 Frequency (speed) is

24 Energy consumption braking

38 Any frequency (speed) is

25 PG feedback disconnection

39 Solar pump alarm output

26 Emergency stop

40 Reserved

27 Overload pre-alarm output 1

41 Reserved

37

SI23 Solar Pump VFD Manual

Photovoltaic Pump Special Parameters

Parameter (address)

Function Description

F21.00(0x5500)

Solar pump drive control mode

F21.01(0x5501)

Running control mode

F21.02(0x5502) F21.03(0x5503) F21.04(0x5504) F21.05(0x5505)

VOC voltage (display)
CVT target voltage
MPPT upper limit voltage MPPT lower limit voltage

Range of settings and definition
LED0 Mode selection 0:Variable frequency control mode 1:CVT mode for solar 2:MPPT mode for solar LED00 Operation selection 0: Continuous Operation 1:Inermittent Operation 2: Pump Cleanr LED000 Reserved LED0000 Motor selection 0:Three-phase Motor 1:Single-phase Motor 0:Stop 1:Running 2:Sleep 3:Low speed protection 4:Dry run protection 5:Over current protection 6:Minimum power protection 7:Water fulfilled protection
0.0V999.9V
70.0%95.0%
20.0%200.0%
20.0%200.0%

F21.06(0x5506)

Frequency adjusting gain

0.1%500.0%

F21.07(0x5507) F21.08(0x5508) F21.09(0x5509)
F21.10(0x550A)

MPPT search interval
MPPT regulating gain Quick-drop frequency gain Frequency adjusting filter time

0.1s100.0s 09999 020
0.001s2.000s

Factory default (setting range)

Notes

0002

Read Only
Read only 81.0% 100.0% 50.0% 10.0% (AM) 40.0% (PMSM) 1.0s 100 2
0.001

38

F21.11(0x550B) F21.12(0x550C) F21.13(0x550D) F21.14(0x550E) F21.15(0x550F) F21.16(0x5510) F21.17(0x5511) F21.18(0x5512) F21.19(0x5513) F21.20(0x5514) F21.21(0x5515) F21.22(0x5516)
F21.23(0x5517) F21.24(0x5518) F21.25(0x5519)
F21.26(0x551A)

Go to sleep mode voltage Wake up restore voltage

0V1000V 0V1000V

Sleeping stop restore waiting time
Low speed protection detect frequency Low speed protection detect time

0.0s3000.0s 0.00Hz300.00Hz 0.0s3000.0s

Low speed protection restore working time
Dry run protection detect current Dry run protection detect time

0.0s3000.0s 0.0A999.9A 0.0s3000.0s

Dry run auto restore working time

0.0s3000.0s

Over current point setting

0.0A999.9A

Over current protection detect time
Over current protection auto restore working time Input minimum power protection power point setting Minimum power protection detect time

0.0s3000.0s 0.0s3000.0s 0.00kW650.00kW 0.0s3000.0s

Minimum power protection auto restore working time

0.0s3000.0s

Fault alarm restore mode

0:Auto reset;1:Reset by manual LED0:Low speed protection LED1:Dry run LED2:Over current protection LED3: Minimum power protection

SI23 Solar Pump VFD Manual 0V 400V 10.0s
10.00Hz 10.0s 10.0s 0.0A 10.0s 10.0s 0.0A 10.0s 10.0s
0.00kW 10.0s 10.0s
0000

39

F21.27(0x551B) F21.28(0x551C) F21.29(0x551D) F21.30(0x551E) F21.31(0x551F) F21.32(0x5520) F21.33(0x5521) F21.34(0x5522) F21.35(0x5523) F21.36(0x5524) F21.37(0x5525) F21.38(0x5526) F21.39(0x5527) F21.40(0x5528) F21.41(0x5529) F21.42(0x552A) F21.43(0x552B)
F21.44(0x552C) F21.45(0x552D)
F21.46(0x552E)
F21.47(0x552F)
F21.48(0x5530)

SI23 Solar Pump VFD Manual

Water fulfilled detect time Water fulfilled restore time reserve DC current revise offset DC current revise proportion gain Power curve point 0 Power curve point 1 Power curve point 2 Power curve point 3 Power curve point 4 Flow curve point 0 Flow curve point 1 Flow curve point 2 Flow curve point 3 Flow curve point 4 Flow calculating revise offset Flow calculating revise gain Power per day/ generated power per day reset period Reserved
Photovoltaic pump function selection 1
Fast frequency falling threshold Constant torque frequency limit coefficient

0.0s3000.0s
0.0s3000.0s
0.00A99.99A
0.0%999.9% 0.00kW99.99kW 0.00kW99.99kW 0.00kW99.99kW 0.00kW99.99kW 0.00kW99.99kW 0.0m³/h999.9m³/h 0.0m³/h999.9m³/h 0.0m³/h999.9m³/h 0.0m³/h999.9m³/h 0.0m³/h999.9m³/h 0.0m³999.9m³
0.0%999.9%
0.0h24.0h
0:Invalid 1:Valid LED0:Constant torque frequency limit selection LED1:Reserved LED2:Voltage rising update Voc voltage LED3: Fast frequency falling function 3.0%15.0%
80.0%150.0%

10.0s 10.0s
0.01A 100.0% 0.50kW 1.00kW 1.50kW 2.00kW 2.50kW 0.0m³/h 5.0m³/h 10.0m³/h 15.0m³/h 20.0m³/h 0.0m³ 100.0%
7.0h
1100H
5.0%
100.0%

40

SI23 Solar Pump VFD Manual

F21.49(0x5531) F21.50(0x5532)

Sudden voltage increase threshold Reserved

0.0%20.0%

F21.51(0x5533) F21.52(0x5534)
F21.53(0x5535)
F21.54(0x5536) F21.55(0x5537) F21.56(0x5538) F21.57(0x5539) F21.58(0x553A) F21.59(0x553B) F21.60(0x553C) F21.61(0x553D) F21.62(0x553E) F21.63(0x553F)

Reserved Reserved
Functional selection
Times of Inermittent Operation Start time of Inermittent Operation Stop time of Inermittent Operation Pump Clean Frequency FWD Running Time REV Running Time Cycle Times Power Limitation Power Limitation Kp Power Limitation Ki

LED0: Inermittent Operation Storage 0:None; 1:Storaged LED00:Stop Mode When Alarm 0:Slow down 1:Free stop LED000:Reserved LED0000:Reserved
01000
0min3000min
0min3000min
0.00Hz300.00Hz
0s3000s 0s3000s 060 0.01000.0 0.0100.0 0.0100.0

Photovoltaic Pump Special Monitor Parameters

Function code

Function name

C04.00(0x2500) C04.01(0x2501) C04.02(0x2502) C04.03(0x2503) C04.04(0x2504) C04.05(0x2505) C04.06(0x2506) C04.07(0x2507) C04.08(0x2508) C04.09(0x2509)

Frequency reference Output frequency Output current Cycle Times 1 Cycle Times 2 Reserved Operation Time Stop Time Reserved Reserved

Setting range and definition
0.01Hz 0.01Hz 0.1A
1min 1min

5.0%
0000
0 0 0 25.00Hz 30s 30s 5 0.0 1.0 1.0
Default setting Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only

41

C04.10(0x250A) C04.11(0x250B) C04.12(0x250C) C04.13(0x250D) C04.14(0x250E) C04.15(0x250F) C04.16(0x2510) C04.17(0x2511) C04.30(0x251E) C04.31(0x251F) C04.32(0x2520) C04.33(0x2521) C02.34(0x2522) C02.35(0x2523) C02.36(0x2524)
C02.37(0x2525)
C02.38(0x2526)

Output power DC bus voltage Module temperature 1 Status of MPPT Solar Panel Operation Point Solar Panel Voc Frequency Searching Period Solar Target Frequency DC current Flow speed Voc voltage Flow per day Cumulative total flow(low position) Cumulative total flow(high position) Generated power per day Cumulative total generated power (low position) Cumulative total generated power (high position)

SI23 Solar Pump VFD Manual

0.01kW 0.1V 0.1
0.1% 0.1V
0.10Hz 0.01A 0.1m³/h 0.1V 0.1m³ 0.1m³ 0.1km³ 0.01kWh
0.01kWh

Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only Read only
Read only

0.1MWh

Read only

42

SI23 Solar Pump VFD Manual
Chapter 6 Operation Guidance
6.1 Asynchronous Motor Pump Drive Operation Guidance 1) Wiring
a. Confirmed the solar pump drive if matching with motor. b. Correctly connecting “+””-” of solar panel to R, T wiring terminals. Otherwise it will cause VFD damage. c. Connect motor wire and ground wire to corresponding U, V, W, E terminals.
2) Parameters setting and trial run
a. Set F01.00 to 0, F01.02 for 0, and F01.22, F01.23 parameters setting according to application site. b. Set motor(pump) parameters according to nameplate of pump. c. Set solar pump MPPT mode F21.00 for 1 or 2. d. Press FWD button for trail running, and confirm the motor running direction.
3) Common problems
a. Q:Well-lit conditions, the pump is running, but the water is very small. A:Check if the pump motor direction is reversed.
b. Q:Well-lit conditions, the drive is in standby mode 0.00Hz. A:Check F21.01, observe what protection status is the drive in currently, check whether the parameters set is reasonable.
c. Q:DC current is incorrectly displayed. A:Adjust F21.30, F21.31 for calibration.
d. Q:Well-lit conditions, frequency severe beating during operation. A:Reasonably adjust F21.06 value, the adjustment is recommended to be in the vicinity of the default, too big or too small will cause frequency oscillation.
6.2 Synchronous Motor Pump Drive Operation Guidance 1) Wiring
a. Confirm if the solar pump drive matches with the motor. b. Connecting “+””-” of solar panel to R, T wiring terminals. Otherwise it will cause VFD damage. c. Connect motor wire and ground wire to corresponding U, V, W, E terminals.
2) Parameters setting and trial run
a. Set F01.00 to 0, F01.02 for 0, and F01.22, F01.23 can be set according to demand. b. Set motor (pump) parameters according to nameplate of pump. Then Set F02.07 for 1, the keypad will show T-00, press START to start motor auto tuning. This process takes about three minutes. Note: 1. If you can disconnect the motor and load, self-learning would be better.
2. The self-learning need to be done with enough sunshine and when the solar panels can provide enough energy. c. Set solar pump MPPT mode F21.00 for 1 or 2. d. Press FWD button for trail running, and confirm the motor running direction.
3) Common problems and solutions
a. Q:Well-lit conditions, the pump is running, but the water is very small. A:Check if the pump motor direction is reversed.
43

SI23 Solar Pump VFD Manual
b. Q:Well-lit conditions, the drive is in standby mode 0.00Hz. A:Check F21.01, observe what protection status is the drive in currently, check whether the parameters set is reasonable.
c. Q:DC current is incorrectly displayed. A:Adjust F21.30, F21.31 for calibration.
d. Q:Well-lit conditions, frequency severe beating during operation. A:Reasonably adjust F21.06 value, the adjustment is recommended to be in the vicinity of the default, too big or too small will cause frequency oscillation.
6.3 PV Water Pump Features

1. Sleep Function
   During the photovoltaic pump operation, the VFD will go into sleep state when the DC voltage provided by solar panels is lower than F21.11 (sleep voltage threshold) due to objective factors, while the keyboard warning “A.LPn”; when DC voltage provided by solar panels rises back to F21.12 (sleep recovery voltage) point, start timing and after F21.13 (sleep shutdown waiting time), the drive starts running.
2. Low-frequency Protection Function
   During the operation of the photovoltaic pump, for some reason, the output frequency is lower than F21.14 (low frequency detection frequency), and after F21.15 (under frequency detection time) time, enters into the standby protection state, while the keyboard warning “A.LFr”; after entering into the standby protection state and after F21.16 (frequency protection automatic recovery) time, automatically resume to running state.
3. Dry Run Protection
   During the operation of the photovoltaic pump, for some reason, the output current is less than F21.17 (dry protection current detection), and after F21.18 (dry protection detection time) time, enters into standby protection state, while the keyboard warning “A.LuT”; after entering into the standby protection state and after F21.19 (dry protection automatic recovery)time, automatically resume to running state.
4. Over-current Protection
   During the operation of the photovoltaic pump, for some reason, the output current is greater than F21.20(over current point setting), and after F21.21 (over current protection detect) time, enters into standby protection state, while the keyboard warning “A.oLd”; after entering into the standby protection state and after F21.22 (over current protection auto restore working )time, automatically resume to running state.
5. Minimum Power Protection
   During the operation of the photovoltaic pump, for some reason, the output power is less than F21.23(minimum power protection value), and after F21.24 (minimum power protection detection time) time, enters into standby protection state, while the keyboard warning “A.LPr”; after entering into the standby protection state and after F21.25 (minimum power automatic recovery)time, automatically resume to running state.
6. Full Water Protection
   Detect the water full alarm and low water level through two X terminals, realizing automatic level control. Wherein F21.27
   44

SI23 Solar Pump VFD Manual is the water overfill protection detection time and F21.28 is full water protection exit time, and X 3 terminal is defined as full solar water detection alarm, and X4 terminal is defined as full solar water detection alarm reset, the warning signal is shown as “A.Ful”.
7) Alarm Recovery Mode: 0: automatic recovery; 1: manual recovery
This option is for low frequency protection, dry protection, over-current protection, minimum power function; you can select the alarm restoration by F21.26. When you select 0 for automatic recovery, during fault warning displaying, you can also press the “RESET” button to stop operation; during fault warning displaying, you can press the “RESET” button to manually clear, you can also press “RESET” button to achieve stop operation.
8) PQ Curve Function
This model provides a self-defined PQ curve for users to set up five groups of PQ corresponding points according to the pump cases, to achieve real-time traffic speed, daily flow, cumulative flow, generating capacity, cumulative electricity consumption; of which by default, daily flow and generating capacity are calculated based on 7h in a day.
9) Status Check
When the photovoltaic pump is running, you can check F21.01 to confirm the current operating status.
45

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>