Danfoss FC-101 VLT HVAC Basic Drive Cascade Controller Instruction Manual

FC-101 VLT HVAC Basic Drive Cascade Controller

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Product Specifications:

• Product Name: VLTp HVAC Basic Drive Cascade Controller

• Model Number: 130BA362.10

• Usage: Pump applications for maintaining pressure or level over
  a wide dynamic range

• Control: Frequency converter with Cascade Controller

• Features: Variable speed control, staging of constant speed
  pumps, pressure maintenance

Product Usage Instructions:

1. Cascade Controller Overview

The Cascade Controller is designed for pump applications where
maintaining a specific pressure or level over a wide dynamic range
is necessary.

2. System Configuration

The system consists of a variable speed pump (lead) controlled
by the frequency converter, along with up to two additional
constant speed pumps that can be staged on and off as needed.

3. Operation

By varying the speed of the lead pump, the entire system’s speed
is controlled to maintain constant pressure, reducing stress and
ensuring quieter operation.

4. Lead Pump Alternation

The Cascade Controller allows for up to 5 equal size pumps to be
controlled, with the lead pump alternating among them, ensuring
balanced usage.

5. System Status and Operation

The operation status of each pump and the Cascade Controller can
be monitored on the Local Control Panel (LCP), indicating whether
pumps are running, disabled, or staged.

Frequently Asked Questions (FAQ):

Q: Can the Cascade Controller control multiple pumps

simultaneously?

A: Yes, the Cascade Controller can control up to 5 equal size
pumps, with the lead pump alternating among them for balanced
operation.

Q: How does the Cascade Controller maintain constant

pressure?

A: By varying the speed of the lead pump and staging constant
speed pumps as needed, the system ensures constant pressure,
reducing stress and eliminating surges.

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MAKING MODERN LIVING POSSIBLE
Instruction
VLTp HVAC Basic Drive Cascade Controller

VLT® HVAC Basic Drive Casca…

VLT® HVAC Basic Drive Cascade Controller

1.1 Cascade Controller
Constant Speed Pumps (2)

130BA362.10

Variable Speed Pumps (1)

Pressure Sensor

Motor starter
Illustration 1.1 Cascade Controller

Frequency Converter with Cascade Controller

The Cascade Controller is used for pump applications where a certain pressure (“head”) or level needs to be maintained over a wide dynamic range. Running a large pump at variable speed over a wide for range is not an ideal solution because of low pump efficiency and because there is a practical limit of about 25% rated full load speed for running a pump.
In the Cascade Controller the frequency converter controls a variable speed motor as the variable speed pump (lead) and can stage up to two additional constant speed pumps on and off. By varying the speed of the initial pump, variable speed control of the entire system is provided. This maintains constant pressure while eliminating pressure surges, resulting in reduced system stress and quieter operation in pumping systems.
Fixed Lead Pump The motors must be of equal size. The Cascade Controller allows the frequency converter to control up to 5 equal size pumps using the drives two built-in relays and terminal 27, 29 (digital input/digital output). When the variable pump (lead) is connected directly to the frequency converter, the other 4 pumps are controlled by the two built-in relays and terminal 27, 29 (digital input/digital output). Lead pump alternation can not be chosen when lead pump is fixed.
Lead Pump Alternation The motors must be of equal size. This function makes it possible to cycle the frequency converter between the pumps in the system (when 25-57 Relays per Pump =1, maximum pump is 4. When 25-57 Relays per Pump =2, maximum pump is 3). In this operation the run time between pumps is equalized reducing the required pump maintenance and increasing reliability and lifetime of the system. The alternation of the lead pump can take place at a command signal or at staging (adding lag pump).

The command can be a manual alternation or an alternation event signal. If the alternation event is selected, the lead pump alternation takes place every time the event occurs. Selections include whenever an alternation timer expires, when the lead pump goes into sleep mode. Staging is determined by the actual system load. 25-55 Alternate if Load50%=1, if load >50% Alternation will not happen. If load 50% Alternation will happen. When 25-55 Alternate if Load50% =0, Alternation will happen no matter with Load. Total pump capacity is determined as lead pump plus lag speed pumps capacities. Bandwidth Management In cascade control systems, to avoid frequent switching of fixed speed pumps, the desired system pressure is kept within a bandwidth rather than at a constant level. The Staging Bandwidth provides the required bandwidth for operation. When a large and quick change in system pressure occurs, the Override Bandwidth overrides the Staging Bandwidth to prevent immediate response to a short duration pressure change. An Override Bandwidth Timer can be programmed to prevent staging until the system pressure has stabilized and normal control established. When the Cascade Controller is enabled and running normally and the frequency converter issues a trip alarm, the system head is maintained by staging and destaging fixed speed pumps. To prevent frequent staging and destaging and minimize pressure fluxuations, a wider Fixed Speed Bandwidth is used instead of the Staging bandwidth.
Illustration 1.2 Bandwidth

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VLT® HVAC Basic Drive Cascade Controller

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1.1.1 System Status and Operation
Only when lead pump is working, the frequency converter can go into sleep mode. When the Cascade Controller is enabled, the operation status for each pump and the Cascade Controller is displayed by 25-81, Pump Status and 25-80, Cascade Status on the LCP. Cascade Controller information displayed includes:
1.1.2 Start/Stop Conditions
See 5-1* Digital Inputs.

· Pumps Status, is a read out of the status for the
relays assigned to each pump. The display shows pumps that are disabled, off, running on the frequency converter or running on the mains/ motor starter.
· Cascade Status, is a read out of the status for the
Cascade Controller. The display shows the Cascade Controller is disabled, all pumps are running off, fixed speed pumps are being staged/de-staged and lead pump alternation is occurring.

Digital input commands Start (SYSTEM START/STOP)
Lead Pump Start Coast (EMERGENCY STOP)

Variable speed pump (lead) Ramps up (if stopped and there is a demand) Ramps up if SYSTEM START is active Coast to stop

External Interlock

Coast to stop

Table 1.1 Commands Assigned to Digital Inputs

Fixed speed pumps (lag) Staging (if stopped and there is a demand)
Not affected Cut out (correspond relays, terminal 27/29 and 42/45) Cut out (built-in relays are de-energized)

LCP keys [Hand On] [Off] [Auto On] Table 1.2 Function of Keys on LCP

Variable speed pump (lead)

Fixed speed pumps (lag)

Ramps up (if stopped by a normal stop

Destaging (if running)

command) or stays in operation if already

running

Ramps down

Destaging

Starts and stops according to commands via Staging/Destaging

terminals or serial bus cascade controller

only can work when drive in “Auto ON”

mode

1.1.3 Cascade Controller Parameter Detail

Parameter Range

25-00 Cascade *[0] Disabled

Controller

[1] Enabled

25-04 Pump *[0] Disabled

Cycling

[1] Enabled

Default Function [0] Disabled Enable/disable
the cascade controller which is used for staging multiple pumps. [0] Disabled Select the method for determining the order of cutting in/out the fixed speed pumps.

Parameter 25-05 Fixed Lead Pump

Range [0] No *[1] Yes

Default *[1] Yes

25-06 Number 2 – Expres-

*2

of Pumps

sionlimit (5)

Function Select if the lead pump is fixed (Yes) or can be cycled (No). Set the total number of pumps including the variable speed pump.

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VLT® HVAC Basic Drive Casca…

VLT® HVAC Basic Drive Cascade Controller

Parameter 25-20 Staging Bandwidth

Range 1 – Expressionlimit (100) %

Expressionlimit (100) – 100%

25-22 Fixed Speed Bandwidth

Expressionlimit (1) – Expressionlimit (100) %

25-23 SBW 0-3000 s Staging Delay

25-24 SBW Destaging Delay

0-3000 s

25-25 OBW Time

0-300 s

25-27 Stage [0] Disabled

Function

*[1] Enabled

25-28 Stage 0-300 s

Function Time

25-29 Destage [0] Disabled

Function

*[1] Enabled

25-30 Destage 0-300 s Function Time

Default 10%
100%
Expressionlimit (10)% 15 s
15 s
10 s
[1] Enabled 15 s
[1] Enabled 15 s

Function Set the SBW percentage to accommodate system pressure fluctuation. Set the OBW for when to override the staging/ destaging timers for immediate response. Set the staging bandwidth to use when only fixed speed pumps are running. Staging a pump on is delayed by the length of time programmed. Destaging a pump is delayed by the length of time programmed. OBW timer prevents staging a pump until the system pressure is stabilised. Enables the stage function timer. With the lead pump at maximum speed, a fixed speed pump is staged on when the programmed time expires. Enables the destage function timer. With the lead pump at minimum speed, a fixed speed pump is destaged when the programmed time expires.

Parameter Range

Default

25-42 Staging Expressionlimit *90%

Threshold

(0)-100%

25-43 Destagi Expressionlimit *50% ng Threshold (0)-100%

25-45 Staging 0-400 Hz Speed [Hz]

*0.0 Hz

25-47 Destagi 0-400 Hz ng Speed [Hz]

*0.0 Hz

25-50 Lead *[0] Off

*[0] Off

Pump

[1] At staging

Alternation [2] At

command

[3] At staging

or command

25-51 Alternati [0] External [0] External

on Event

[1] Alternation

Time Interval

[2] Sleep Mode

25-52 Alternati 1-999

*24

on Time

Interval

25-53 Alternati on Timer Value

25-55 Alternat [0] Disabled e if Load <= *[1] Enabled 50%

*[1] Enabled

25-56 Staging *[0] Slow

Mode at

[1] Quick

Alternation

25-57 Relays 1-2

per Pump

[0] Slow 1

Function The percentage [%] of maximum pump speed to stage on a fixed speed pump. The percentage [%] of maximum pump speed to destage a fixed speed pump. The actual staging speed based on the staging threshold. The actual destaging speed based on the destaging threshold. Changes the lead pump so all pumps run equal time.
Choose the event that will change the lead pump.
Set the time period between automatic alternation of the lead pump. View the actual value of the Alternation Time Interval timer. Choose enable to change the variable speed pump only if the pump load is less than 50%.
The number of relays used per pump.

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Parameter 25-58 Run Next Pump Delay

Range 0.1-5.0 s

Default *0.1 s

25-59 Run on Expressionlimit *0.5 s Mains Delay (0.1)-5.0 s

25-80 Cascade Status

25-81 Pump 0-0

Status

Function Time between stopping the old variable speed pump and starting the new appointed pump. Time delay before a fixed speed pump is staged on according to normal staging sequence. View the control status for the Cascade Controller. View the status for the pumps connected: X=Disabled, O=Off, D=Speed controlled, R=Mains.

Parameter 25-84 Pump ON Time

Range

Default

0-2147483647 * 0

25-90 Pump *[0] Off

Interlock

[1] On

*[0] Off

Table 1.3

Function View the total operating hours of the connected pumps. Can be reset by writing 0.. Choose the pump to interlock for e.g. service. The pump will be taken out of any pump cycling etc.

1.2 Installation
1.2.1 Control Terminals
Illustration 1.3 shows all control terminals of the frequency converter. Applying Start (terminal 18), connection between terminal 12-27 and an analog reference (terminal 53 or 54 and 55) make the frequency converter run.

BUS TER.

OFF

ON

61 68 69

18 19 27 29 42 45 50 53 54

10V/20mA IN 10V/20mA IN 10V OUT

DIGI IN/OUT DIGI IN/OUT DIGI IN DIGI IN

N P COMM. GND

0/4-20mA A OUT / DIG OUT
Illustration 1.3 Control Terminals

+24V

0/4-20mA A OUT / DIG OUT 12 20 55
COM A IN
COM DIG IN

130BB985.10

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VLT® HVAC Basic Drive Casca…
1.2.2 Electrical Overview

VLT® HVAC Basic Drive Cascade Controller

3 Phase power input

L1 L2 L3
PE

+10Vdc
0-10Vdc0/4-20 mA
0-10Vdc0/4-20 mA

50 (+10V OUT)
53 (A IN) 54 (A IN)
55 (COM A IN/OUT) 42 0/4-20mA A OUT / DIG OUT 45 0/4-20mA A OUT / DIG OUT

12 (+24V OUT) 18 (DIGI IN)

19 (DIGI IN) 20 (COM D IN) 27 (DIGI IN/DIGI OUT)

24V

29 (DIGI IN/

0V

DIGI OUT)

24V

0V

Illustration 1.4 Electrical Overview

U V W
PE

Motor

UDCNot present on all power sizes
UDC+

24V (NPN) OV (PNP) 24V (NPN) OV (PNP)
24V (NPN) OV (PNP)
24V (NPN) OV (PNP)

relay2 06
05
04

relay1 03

ON 12

Bus ter.

02
01
ON=Terminated OFF=Unterminated

240V AC 3A 240V AC 3A

Bus ter.
RS-485 Interface

(N PS-485) 69 (P RS-485) 68 (Com RS-485 ) 61

RS-485
Do not connect shield to 61 on 116,117 and 118 unites (PNP)-Source (NPN)-Sink

NOTE
There is no access to UDC- and UDC+ on the following units: IP20 380-480 V, 30-90 kW

130BB984.10

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1.3 Specifications 1.3.1 Product General Specifications

Frequency Converter Typical shaft output [kW] IP20 Frame RFI Class PCB
Table 1.4
Frequency Converter Typical shaft output [kW] IP20 Frame RFI Class PCB
Table 1.5

PK37 0.37 H1 A1 Coated

PK75 0.75 H1 A1 Coated

P1K5 1.5 H1 A1 Coated

P2K2 2.2 H2 A1 Coated

P3K0 3.0 H2 A1 Coated

P4K0 4.0 H2 A1 Coated

P5K5 5.5 H3 A1 Coated

P7K5 7.5 H3 A1 Coated

P11K 11 H4 A1
Coated

P15K 15 H4 A1
Coated

P18K 18 H5 A1
Coated

P22K 22 H5 A1
Coated

P30K 30 H6 A1
Coated

P37K 37 H6 A1
Coated

P45K 45 H6 A1
Coated

P55K 55 H7 A1
Coated

P75K 75 H7 A1
Coated

P90K 90 H8 A1
Coated

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1.4.1 MStaruinctMureenu
0- Operation / Display 0-0 Basic Settings 0-01 Language 0-03 Regional Settings 0-04 Operating State at Power-up 0-06 GridType 0-07 Auto DC Braking 0-1 Set-up Operations 0-10 Active Set-up 0-11 Programming Set-up 0-12 Link Setups 0-3 LCP Custom Readout 0-30 Custom Readout Unit 0-31 Custom Readout Min Value 0-32 Custom Readout Max Value 0-37 Display Text 1 0-38 Display Text 2 0-39 Display Text 3 0-4 LCP Keypad 0-40 [Hand on] Key on LCP 0-42 [Auto on] Key on LCP 0-44 [Off/Reset] Key on LCP 0-5 Copy/Save 0-50 LCP Copy 0-51 Set- up Copy 0-6 Password 0-60 Main Menu Password 1- Load and Motor 1-0 General Settings 1-00 Configuration Mode 1-01 Motor Control Principle 1-03 Torque Characteristics 1-06 Clockwise Direction 1-08 Motor Control Bandwidth 1-1 Motor Selection 1-10 Motor Construction 1-14 Damping Gain 1-15 Low Speed Filter Time Const 1-16 High Speed Filter Time Const 1-17 Voltage filter time const 1-2 Motor Data 1-20 Motor Power 1-22 Motor Voltage 1-23 Motor Frequency 1-24 Motor Current 1-25 Motor Nominal Speed 1-26 Motor Cont. Rated Torque 1-29 Automatic Motor Adaption (AMA) 1-3 Adv. Motor Data 1-30 Stator Resistance (Rs) 1-33 Stator Leakage Reactance (X1) 1-35 Main Reactance (Xh) 1-37 d-axis Inductance (Ld) 1-39 Motor Poles 1-4* Adv. Motor Data II

1-40 Back EMF at 1000 RPM

4-1* Motor Limits

1-42 Motor Cable Length

4-10 Motor Speed Direction

1-43 Motor Cable Length Feet

4-12 Motor Speed Low Limit [Hz]

1-5* Load Indep. Setting

4-14 Motor Speed High Limit [Hz]

1-50 Motor Magnetisation at Zero Speed 4-18 Current Limit

1-52 Min Speed Normal Magnetising [Hz] 4-19 Max Output Frequency

1-55 U/f Characteristic – U

4-4* Adj. Warnings 2

1-56 U/f Characteristic – F

4-40 Warning Freq. Low

1-6* Load Depen. Setting

4-41 Warning Freq. High

1-60 Low Speed Load Compensation

4-5* Adj. Warnings

1-61 High Speed Load Compensation

4-50 Warning Current Low

1-62 Slip Compensation

4-51 Warning Current High

1-63 Slip Compensation Time Constant

4-54 Warning Reference Low

1-64 Resonance Dampening

4-55 Warning Reference High

1-65 Resonance Dampening Time Constant 4-56 Warning Feedback Low

1-66 Min. Current at Low Speed

4-57 Warning Feedback High

1-7* Start Adjustments

4-58 Missing Motor Phase Function

1-71 Start Delay

4-6* Speed Bypass

1-72 Start Function

4-61 Bypass Speed From [Hz]

1-73 Flying Start

4-63 Bypass Speed To [Hz]

1-8* Stop Adjustments

4-64 Semi-Auto Bypass Set-up

1-80 Function at Stop

5-** Digital In/Out

1-82 Min Speed for Function at Stop [Hz] 5-0* Digital I/O mode

1-9* Motor Temperature

5-00 Digital Input Mode

1-90 Motor Thermal Protection

5-01 Terminal 27 Mode

1-93 Thermistor Source

5-02 Terminal 29 Mode

2-** Brakes

5-03 Digital Input 29 Mode

2-0* DC-Brake

5-1* Digital Inputs

2-00 DC Hold/Motor Preheat Current

5-10 Terminal 18 Digital Input

2-01 DC Brake Current

5-11 Terminal 19 Digital Input

2-02 DC Braking Time

5-12 Terminal 27 Digital Input

2-04 DC Brake Cut In Speed

5-13 Terminal 29 Digital Input

2-06 Parking Current

5-3* Digital Outputs

2-07 Parking Time

5-30 Terminal 27 Digital Output

2-1* Brake Energy Funct.

5-31 Terminal 29 Digital Output

2-10 Brake Function

5-34 On Delay, Digital Output

2-16 AC Brake, Max current

5-35 Off Delay, Digital Output

2-17 Over-voltage Control

5-4* Relays

3-** Reference / Ramps

5-40 Function Relay

3-0* Reference Limits

5-41 On Delay, Relay

3-02 Minimum Reference

5-42 Off Delay, Relay

3-03 Maximum Reference

5-5* Pulse Input

3-1* References

5-50 Term. 29 Low Frequency

3-10 Preset Reference

5-51 Term. 29 High Frequency

3-11 Jog Speed [Hz]

5-52 Term. 29 Low Ref./Feedb. Value

3-14 Preset Relative Reference

5-53 Term. 29 High Ref./Feedb. Value

3-15 Reference 1 Source

5-9* Bus Controlled

3-16 Reference 2 Source

5-90 Digital & Relay Bus Control

3-17 Reference 3 Source

6-** Analog In/Out

3-4* Ramp 1

6-0* Analog I/O Mode

3-41 Ramp 1 Ramp Up Time

6-00 Live Zero Timeout Time

3-42 Ramp 1 Ramp Down Time

6-01 Live Zero Timeout Function

3-5* Ramp 2

6-1* Analog Input 53

3-51 Ramp 2 Ramp Up Time

6-10 Terminal 53 Low Voltage

3-52 Ramp 2 Ramp Down Time

6-11 Terminal 53 High Voltage

3-8* Other Ramps

6-12 Terminal 53 Low Current

3-80 Jog Ramp Time

6-13 Terminal 53 High Current

3-81 Quick Stop Ramp Time

6-14 Terminal 53 Low Ref./Feedb. Value

4-** Limits / Warnings

6-15 Terminal 53 High Ref./Feedb. Value

6-16 Terminal 53 Filter Time Constant 6-19 Terminal 53 mode 6-2 Analog Input 54 6-20 Terminal 54 Low Voltage 6-21 Terminal 54 High Voltage 6-22 Terminal 54 Low Current 6-23 Terminal 54 High Current 6-24 Terminal 54 Low Ref./Feedb. Value 6-25 Terminal 54 High Ref./Feedb. Value 6-26 Terminal 54 Filter Time Constant 6-29 Terminal 54 mode 6-7 Analog/Digital Output 45 6-70 Terminal 45 Mode 6-71 Terminal 45 Analog Output 6-72 Terminal 45 Digital Output 6-73 Terminal 45 Output Min Scale 6-74 Terminal 45 Output Max Scale 6-76 Terminal 45 Output Bus Control 6-9* Analog/Digital Output 42 6-90 Terminal 42 Mode 6-91 Terminal 42 Analog Output 6-92 Terminal 42 Digital Output 6-93 Terminal 42 Output Min Scale 6-94 Terminal 42 Output Max Scale 6-96 Terminal 42 Output Bus Control 6-98 Drive Type 8-* Comm. and Options 8-0 General Settings 8-01 Control Site 8-02 Control Source 8-03 Control Timeout Time 8-04 Control Timeout Function 8-3 FC Port Settings 8-30 Protocol 8-31 Address 8-32 Baud Rate 8-33 Parity / Stop Bits 8-35 Minimum Response Delay 8-36 Maximum Response Delay 8-37 Maximum Inter-char delay 8-4 FC MC protocol set 8-42 PCD Write Configuration 8-43 PCD Read Configuration 8-5 Digital/Bus 8-50 Coasting Select 8-51 Quick Stop Select 8-52 DC Brake Select 8-53 Start Select 8-54 Reversing Select 8-55 Set-up Select 8-56 Preset Reference Select 8-7 BACnet 8-70 BACnet Device Instance 8-72 MS/TP Max Masters 8-73 MS/TP Max Info Frames 8-74 “I am” Service 8-75 Intialisation Password 8-79 Protocol Firmware version 8-8* FC Port Diagnostics

8-80 Bus Message Count 8-81 Bus Error Count 8-82 Slave Messages Rcvd 8-83 Slave Error Count 8-84 Slave Messages Sent 8-85 Slave Timeout Errors 8-88 Reset FC port Diagnostics 8-9* Bus Feedback 8-94 Bus Feedback 1 13-* Smart Logic 13-0 SLC Settings 13-00 SL Controller Mode 13-01 Start Event 13-02 Stop Event 13-03 Reset SLC 13-1 Comparators 13-10 Comparator Operand 13-11 Comparator Operator 13-12 Comparator Value 13-2 Timers 13-20 SL Controller Timer 13-4 Logic Rules 13-40 Logic Rule Boolean 1 13-41 Logic Rule Operator 1 13-42 Logic Rule Boolean 2 13-43 Logic Rule Operator 2 13-44 Logic Rule Boolean 3 13-5 States 13-51 SL Controller Event 13-52 SL Controller Action 14- Special Functions 14-0 Inverter Switching 14-01 Switching Frequency 14-03 Overmodulation 14-08 Damping Gain Factor 14-1 Mains On/Off 14-12 Function at Mains Imbalance 14-2 Reset Functions 14-20 Reset Mode 14-21 Automatic Restart Time 14-22 Operation Mode 14-23 Typecode Setting 14-27 Action At Inverter Fault 14-28 Production Settings 14-29 Service Code 14-4 Energy Optimising 14-40 VT Level 14-41 AEO Minimum Magnetisation 14-5 Environment 14-50 RFI Filter 14-51 DC-Link Voltage Compensation 14-52 Fan Control 14-53 Fan Monitor 14-55 Output Filter 14-6 Auto Derate 14-63 Min Switch Frequency 15- Drive Information 15-0* Operating Data 15-00 Operating hours

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VLT® HVAC Basic Drive Cascade Controller

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MI18I302 – VLT® is a registered Danfoss trademark

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15-01 Running Hours 15-02 kWh Counter 15-03 Power Up’s 15-04 Over Temp’s 15-05 Over Volt’s 15-06 Reset kWh Counter 15-07 Reset Running Hours Counter 15-3 Alarm Log 15-30 Alarm Log: Error Code 15-31 InternalFaultReason 15-4 Drive Identification 15-40 FC Type 15-41 Power Section 15-42 Voltage 15-43 Software Version 15-44 Ordered TypeCode 15-46 Drive Ordering No 15-47 Power Card Ordering No 15-48 LCP Id No 15-49 SW ID Control Card 15-50 SW ID Power Card 15-51 Drive Serial Number 15-53 Power Card Serial Number 15-9* Parameter Info 15-92 Defined Parameters 15-97 Application Type 15-98 Drive Identification 16-* Data Readouts 16-0 General Status 16-00 Control Word 16-01 Reference [Unit] 16-02 Reference [%] 16-03 Status Word 16-05 Main Actual Value [%] 16-09 Custom Readout 16-1 Motor Status 16-10 Power [kW] 16-11 Power [hp] 16-12 Motor Voltage 16-13 Frequency 16-14 Motor current 16-15 Frequency [%] 16-18 Motor Thermal 16-3 Drive Status 16-30 DC Link Voltage 16-34 Heatsink Temp. 16-35 Inverter Thermal 16-36 Inv. Nom. Current 16-37 Inv. Max. Current 16-38 SL Controller State 16-5 Ref. & Feedb. 16-50 External Reference 16-52 Feedback[Unit] 16-6 Inputs & Outputs 16-60 Digital Input 16-61 Terminal 53 Setting 16-62 Analog Input AI53 16-63 Terminal 54 Setting 16-64 Analog Input AI54

16-65 Analog Output AO42 [mA] 16-66 Digital Output 16-67 Pulse Input #29 [Hz] 16-71 Relay Output [bin] 16-72 Counter A 16-73 Counter B 16-79 Analog Output AO45 16-8 Fieldbus & FC Port 16-86 FC Port REF 1 16-9 Diagnosis Readouts 16-90 Alarm Word 16-91 Alarm Word 2 16-92 Warning Word 16-93 Warning Word 2 16-94 Ext. Status Word 16-95 Ext. Status Word 2 18- Info & Readouts 18-1* Fire Mode Log 18-10 FireMode Log:Event 20-* Drive Closed Loop 20-0 Feedback 20-00 Feedback 1 Source 20-01 Feedback 1 Conversion 20-8 PI Basic Settings 20-81 PI Normal/ Inverse Control 20-83 PI Start Speed [Hz] 20-84 On Reference Bandwidth 20-9 PI Controller 20-91 PI Anti Windup 20-93 PI Proportional Gain 20-94 PI Integral Time 20-97 PI Feed Forward Factor 22- Appl. Functions 22-4 Sleep Mode 22-40 Minimum Run Time 22-41 Minimum Sleep Time 22-43 Wake-Up Speed [Hz] 22-44 Wake-Up Ref./FB Diff 22-45 Setpoint Boost 22-46 Maximum Boost Time 22-47 Sleep Speed [Hz] 22-6 Broken Belt Detection 22-60 Broken Belt Function 22-61 Broken Belt Torque 22-62 Broken Belt Delay 24- Appl. Functions 2 24-0 Fire Mode 24-00 FM Function 24-05 FM Preset Reference 24-09 FM Alarm Handling 24-1 Drive Bypass 24-10 Drive Bypass Function 24-11 Drive Bypass Delay Time 25- Cascade Controller 25-0* System Settings 25-00 Cascade Controller 25-04 Pump Cycling 25-05 Fixed Lead Pump 25-06 Number of Pumps

25-2 Bandwidth Settings 25-20 Staging Bandwidth 25-21 Override Bandwidth 25-22 Fixed Speed Bandwidth 25-23 SBW Staging Delay 25-24 SBW Destaging Delay 25-25 OBW Time 25-27 Stage Function 25-28 Stage Function Time 25-29 Destage Function 25-30 Destage Function Time 25-4 Staging Settings 25-42 Staging Threshold 25-43 Destaging Threshold 25-45 Staging Speed [Hz] 25-47 Destaging Speed [Hz] 25-5 Alternation Settings 25-50 Lead Pump Alternation 25-51 Alternation Event 25-52 Alternation Time Interval 25-53 Alternation Timer Value 25-55 Alternate if Load <= 50% 25-56 Staging Mode at Alternation 25-57 Relays per Pump 25-58 Run Next Pump Delay 25-59 Run on Mains Delay 25-8 Status 25-80 Cascade Status 25-81 Pump Status 25-84 Pump ON Time 25-9* Service 25-90 Pump Interlock 38-* Debug only – see PNU 1429 (service-
code) also 38-0 All debug parameters 38-00 TestMonitorMode 38-01 Version And Stack 38-06 LCPEdit Set-up 38-07 EEPROMDdataVers 38-08 PowerDataVariantID 38-09 AMA Retry 38-10 DAC selection 38-12 DAC scale 38-20 MOC_TestUS16 38-21 MOC_TestS16 38-23 TestMocFunctions 38-24 DC Link Power Measurement 38-25 CheckSum 38-30 Analog Input 53 (%) 38-31 Analog Input 54 (%) 38-32 Input Reference 1 38-33 Input Reference 2 38-34 Input Reference Setting 38-35 Feedback (%) 38-36 Fault Code 38-37 Control Word 38-38 ResetCountersControl 38-39 Active Setup For BACnet 38-40 Name Of Analog Value 1 For BACnet

38-41 Name Of Analog Value 3 For BACnet 38-42 Name Of Analog Value 5 For BACnet 38-43 Name Of Analog Value 6 For BACnet 38-44 Name Of Binary Value 1 For BACnet 38-45 Name Of Binary Value 2 For BACnet 38-46 Name Of Binary Value 3 For BACnet 38-47 Name Of Binary Value 4 For BACnet 38-48 Name Of Binary Value 5 For BACnet 38-49 Name Of Binary Value 6 For BACnet 38-50 Name Of Binary Value 21 For BACnet 38-51 Name Of Binary Value 22 For BACnet 38-52 Name Of Binary Value 33 For BACnet 38-53 Bus Feedback 1 Conversion 38-54 Run Stop Bus Control 38-58 Inverter ETR counter 38-59 Rectifier ETR counter 38-60 DB_ErrorWarnings 38-61 Extended Alarm Word 38-69 AMA_DebugS32 38-74 AOCDebug0 38-75 AOCDebug1 38-76 AO42_FixedMode 38-77 AO42_FixedValue 38-78 DI_TestCounters 38-79 Protect Func. Counter 38-80 Highest Lowest Couple 38-81 DB_SendDebugCmd 38-82 MaxTaskRunningTime 38-83 DebugInformation 38-85 DB_OptionSelector 38-86 EEPROM_Address 38-87 EEPROM_Value 38-88 Logger Time Remain 38-90 LCP FC-Protocol select 38-91 Motor Power Internal 38-92 Motor Voltage Internal 38-93 Motor Frequency Internal 38-94 Lsigma 38-95 DB_SimulateAlarmWarningExStatus 38-96 Data Logger Password 38-97 Data Logging Period 38-98 Signal to Debug 38-99 Signed Debug Info

VLT® HVAC Basic Drive Casca…
11

VLT® HVAC Basic Drive Cascade Controller

www.danfoss.com/drives

130R0267

MI18I302
MI18I302

Rev. 2012-08-30

References

• Global AC drive manufacturer - Danfoss Drives | Danfoss

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