MEAN WELL VFD-350C-230 AC Input Variable Frequency Drive Module with PFC Function Owner’s Manual

VFD-350C-230 AC Input Variable Frequency Drive Module with PFC Function

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Product Specifications

• Model: VFD-350C-230

• Power Output: 350W

• Input Voltage Range: 380V max, line-to-line
  voltage 0~268V adjustable

• Rated Input Current: 3.5A/115VAC,
  2A/230VAC

• Efficiency: DC Bus Voltage

• PWM Frequency: 2.5 KHz ~ 15 KHz

• Rated Input Voltage: 90 ~ 264VAC

• Input Frequency Range: 47 ~ 63Hz

• Power Factor: PF>0.99/115VAC,
  PF>0.93/230VAC at full load

• Inrush Current: Cold start 70A/230VAC

• MTBF: 2078.9K hrs min. Telcordia SR-332
  (Bellcore)

• Dimensions: 146x62x31mm

Product Usage Instructions

1. Installation

Ensure proper mounting of the VFD-350C-230 in a suitable
location.

2. Power Connection

Connect the AC input power according to the specified voltage
range.

3. Control and Functionality

Utilize the provided PWM control interface for controlling the
drive module.

4. Safety Measures

Adhere to all safety guidelines provided in the user manual to
prevent any accidents.

Frequently Asked Questions (FAQ)

Q: What is the maximum rated power output of the

VFD-350C-230?

A: The VFD-350C-230 has a maximum rated power
output of 350W.

Q: What is the input voltage range for this variable frequency

drive module?

A: The input voltage range is 380V max, with a
line-to-line voltage of 0~268V adjustable.

Q: How should I control the PWM output of the

VFD-350C-230?

A: The PWM output can be controlled using the
provided PWM control interface with compatible TTL and CMOS 3.3V
signals.

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VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

User’s Manual

Video

IEC61800-5-1

Bauar t gepruft Sicherheit
egelma ge od o s be wac g
www.tuv.com ID 2000000000
BS EN/EN61800-5-1

TPTC004

~

https://www.meanwell.com/serviceGTIN.aspx

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

SPECIFICATION

MODEL NO. PWM OUTPUT
(Note 1,2,3,4)
INPUT
CONTROL / FUNCTION
(Note 5)
PROTECTION ENVIRONMENT
SAFETY & EMC
OTHERS NOTE

VFD-350C-230

VOLTAGE RANGE(UVW)

380Vmax, line-to-line voltage 0~268V adjustable with modulated PWM , suitable for 3PH 200-240V class motor

CURRENT

Rated Peak

1.4A 2.8A for 5 seconds

RATED POWER

350W

EFFICIENCY DC BUS VOLTAGE

93% 380±5VDC

PWM FREQUENCY RATED INPUT VOLTAGE

2.5 KHz ~ 15 KHz 90 ~ 264VAC

INPUT FREQUENCY RANGE (Hz) 47 ~ 63Hz

POWER FACTOR (Typ.)

PF>0.99/115VAC, PF>0.93/230VAC at full load

RATED INPUT CURRENT

3.5A /115VAC 2A/230VAC

INRUSH CURRENT

Cold start 70A /230VAC

LEAKAGE CURRENT 3-PHASE PWM CONTROL

<2mA/240VAC PWM control signal to gate driver for IGBTs. (CN93, PIN8~13) 3.3V TTL/CMOS input: High(>2.7V): IGBT ON ; Low(<0.4V): IGBT OFF

3-PHASE CURRENT SENSOR DC BUS VOLTAGE SENSOR

Built-in 100m low-side shunt resistors on UVW phase (CN93, PIN4~6)
DC BUS voltage sensor output (CN93, PIN1) 2.5V@DC BUS 380V

THERMAL SENSOR

Built-in 10K NTC for sensing IGBTs operating temperature. (TSM2A103F34D1R (Thinking Electronic), PIN3 of CN93)

FAULT SIGNAL AUXILIARY POWER

Inverter fault signal(Short circuit/OCP, CN93, PIN7).
3.3V TTL/CMOS output: Normal: High(>3V); Abnormal: Low(<0.5V) Non-isolated 15V output power for external control board (CN93,PIN 14 to PIN2 ) 15V@0.1A ; Tolerance +/- 0.5V, Ripple 1Vp-p max

SHORT CIRCUIT WORKING TEMP.

Protection type : Shut down o/p voltage, re-power on to recover -30 ~ +60 (Refer to “Dreating Curve”)

WORKING HUMIDITY STORAGE TEMP., HUMIDITY

20 ~ 90% RH non-condensing -40 ~ +85, 10 ~ 95% RH non-condensing

VIBRATION

10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY STANDARDS

CB IEC61800-5-1,TUV/BS EN/EN61800-5-1,EAC TP TC004 approved

WITHSTAND VOLTAGE

I/P-FG:2KVAC

ISOLATION RESISTANCE

I/P-FG:100M Ohms/500VDC/25/ 70%RH

Parameter

Standard

Test Level / Note

EMC EMISSION

Conducted Radiated Harmonic Current Voltage Flicker

BS EN/EN IEC61800-3 BS EN/EN IEC61800-3 BS EN/EN IEC61000-3-2 BS EN/EN61000-3-3

Class A, C2 Class A, C2 Class A —–

BS EN/EN IEC61800-3, second environment

EMC IMMUNITY

Parameter ESD Radiated EFT/Burest Surge Conducted Magnetic Field

Standard BS EN/EN61000-4-2 BS EN/EN IEC61000-4-3 BS EN/EN61000-4-4 BS EN/EN61000-4-5 BS EN/EN61000-4-6 BS EN/EN61000-4-8

Test Level /Note Level 3, 8KV air ; Level 2, 4KV contact Level 3 Level 3 Level 3, 2KV/Line-Earth ; Level 3, 1KV/Line-Line Level 3 Level 4

Voltage Dips and Interruptions BS EN/EN IEC61000-4-11

95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

MTBF

Voltage deviation

IEC 61000-2-4 Class 2

±10% Un

Total Harmonic distortion (THD) Individual Harmonic orders

IEC 61000-2-4 Class 3 IEC 61000-4-13 Class 3

THD 12 %

Frequency variations

IEC 61000-2-4

±4%

Frequency rate of change

IEC 61000-2-4

2%/s

2078.9K hrs min.Telcordia SR-332 (Bellcore) ; 191.5K hrs min.MIL-HDBK-217F (25)

DIMENSION (LWH)

1466231mm

PACKING

0.38Kg;32pcs/13.18kg/0.87CUFT

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

Block Diagram

ACL ACN FG

EMI FILTER

PFC CIRCUIT

380VDCBus

UH
VH WH GATE DRIVE CONTROL UL
VL WL FAULT ITRIP

AUX POWER

SHORTCIRCUIT PROTECT

HV+ HV-

IGBT temperature
sensor

V/I CURVE

Io

2.8A

Peak current

U

(5 sec.)

V

1.5A

W

1.4A

0.75A

Continuous duty S1 area

RSH_U RSH_V RSH_W PWM_UH PWM_UL PWM_VH PWM_VL PWM_WH PWM_WL FAULT HV+ sensor
HV-
Vaux_15V
RTH

150V

268V

Vo

Derating Curve

Output Derating VS Input Voltage

LOAD (%)

100

80

Conduction cooling

or

Forced air cooling

50

40

Convection cooling

30

20

-30

0

10

20

30

40

50

60 70 (HORIZONTAL )

AMBIENT TEMPERATURE

LOAD (%)

100 90 80 85 70 60 50 40
90 100 115 120 130 140 160 180 200 220 240 264
INPUT VOLTAGE (VAC) 60Hz

Peak Current
200%

80% 5 sec.

55 sec.

EFFICIENCY (%)

Efficiency vs Load

100% 95% 90% 85% 80% 75% 70% 65% 60%
30% 40% 50% 60% 70% 80% 90% 100%

115VAC 230VAC

LOAD

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

Function Manual

1. 3-phase PWM Control (CN93, PIN8~13) VFD-350C-230 provides six-switch circuit by using 3 half-bridge IGBTs. IGBTs of each phase is controlled by PWM_UH/UL, PWM_VH/VL and PWM_WH/WL (PIN 8~13). The input requirement for PWM is compatible with both TTL and CMOS 3.3V signals. Please refer to the diagram below.
External MCU Control Card

PIN 13 PWM_UL PIN 12 PWM_UH PIN 11 PWM_VL PIN 10 PWM_VH PIN 9 PWM_WL PIN 8 PWM_WH

PWM

MCU

WARNING: It is necessary to keep minimum dead-time between the upper and lower switch of each phase.

t dead

t dead

tdead (Min.)

300ns

PWMxH

PWMxL

t sw

Output Voltage
VX

380V 0V

tdead : Switching dead-time t sw : Switching period

x = U, V, W

2. 3-phase Current Detection & Overcurrent Protection (CN93, PIN4~6) Low-side shunt resistors 100m are installed on each phase of VFD-350C-230 for current measurement and short-circuit detection. It’s suggested to shorten the length of external detection circuit and detect the signal with a OPAs. Please refer to diagram below.
External MCU Control Card

PIN 6 RSH_W PIN 5 RSH_V PIN 4 RSH_U PIN 2 HV-

Voff set

x3
+ OPA
–

IU ADC MCU

If output current exceeds 200% of rated value, the internal protection circuit will be triggered and shut down the gate driver for protection.

Gate -drive
ITRIP

Voc U

COMP

Voc V Voc W

Short-circuit

Iu

Protection

Iv

Iw

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function
3. DC BUS Voltage Detection (CN93, PIN1) VFD-350C-230 is build-in with DC bus voltage sensor(HV+ sensor, PIN 1). The sensor provides a 2.5V output when DC bus voltage is at 380V. It’s suggested to detect the signal by OPAs. When the voltage of the DC bus exceed 420V, the PWM input signal must shut down for protection.
External MCU Control Card

PIN1 HV+ sensor

OPA

–

MCU

Real DC Bus volta ge(V)

Equation for DC bus voltage calculation: VDC BUS = 380 x HV+sensor
2.5

HV+ sensor specification 600 400 200

0

0.00

1.00

2.00

3.00

4.00

4. IGBT Temperature Detection (CN93, PIN3)

HV+ sensor output voltage(V)

VFD-350C-230 is built-in a NTC resistor for detecting IGBTs temperature. Users can detect IGBTs temperature for protection. (NTC type: TSM2A103F34D1R, Thinking Electronic) The recommended detection circuit is below. It’s suggested to shutdown the PWMs input, if the temperture is above 100.

Vcc

Example:

Vcc=5V

PIN 3 RTH

REXT External MCU Control Card

NTC

Vtemp

ADC

MCU

PIN 3 RTH NTC

REXT=4.99K
Vtemp

Vtemp=Vcc x

RNTC REXT+RNTC

TNTC 45°C 100°C

RNTC 4.88K 0.96K

Vtemp 2.47V 0.83V

PIN 2 HV-

PIN 2 HV-

5. Fault signal
If the VFD-350C-230 encounters an overcurrent condition and remains in that state for the minimum overcurrent time, the FAULT signal will be activated (active low) to notify the external controller or circuit.

Ouput Current

t Tripmin.

200% rated current

tTripmin.

1us

PIN7 FAULT

t Tripmin.

5us
Min. over-current tripping time

6. Brake Recommandations(CN100,PIN1,3)
VFD-350C-230reserved CN100 PIN1,3 that connect to HV+,HV- for brake circuit design . The maximum voltage on DC Bus(HV+) shall not be higher than 420V.

External MCU Control Card

CN93 PIN1 HV+ Sensor
CN100 PIN3 HVCN100 PIN1 HV+

Vref COMP Gate drive

HV+ Brake Resistor
HV-

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

Mechanical Specification

Unit:mm

146

140

3

7.8

6 7.62

3 2 1 TB1

TB100

3

CN100

3

2

2

1

1

4-3.3 L=6

46.4

62

1

13

CN93

2

14

1

13

2

14

31
7.62 6

AC Input Terminal Pin NO. Assignment (TB1)

Pin No. Assignment

1

AC/L

2

AC/N

3

Output Terminal Pin NO. Assignment (TB100)

Pin No. Assignment

1

U

2

V

3

W

380V DC Bus Connector(CN100): JST B3P-VH or equivalent

Pin No. 1 2 3

Assignment HV+ No Pin HV-

Mating housing: JST VHR or equivalent Terminal: JST SVH-21T-P1.1 or equivalent
CN100 is used for installing regenerative brake device, avoiding VFD-350C-230 damage.

Control Pin NO. Assignment (CN93) : HRS DF11-14DP-2DS or equivalent

Pin No. Assignment Pin No. Assignment

1

HV+ sensor

8

PWM_W H

2

HV-

9

PWM_W L

3

RTH

10

PWM_V H

4

RSH _U

11

PWM_V L

5

RSH _V

12

PWM_U H

6

RSH _W

13

PWM_U L

7

FAULT

14

Vaux_15V

Mating housing: HRS DF11-14DS or equivalent Terminal HRS DF11-**SC or equivalent

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

Control Pin No. Assignment(CN93) :

Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Function Description

HV+ sensor DC BUS voltage sensor output, reference to pin 2(HV-)

HV- DC BUS voltage sensor output ground

RTH Temperature sensor

RSH_U RSH_V RSH_W FAULT

U phase current sensor output V phase current sensor output W phase current sensor output Over current detection. Normal > 3V, Abnormal < 0.5V

PWM_WH PWM_WL PWM_VH PWM_VL PWM_UH PWM_UL Vaux_15V

W phase high side logic input, on > 2.7V ; off < 0.4V W phase low side logic input, on > 2.7V ; off < 0.4V V phase high side logic input, on > 2.7V ; off < 0.4V V phase low side logic input, on > 2.7V ; off < 0.4V U phase high side logic input, on > 2.7V ; off < 0.4V U phase low side logic input, on > 2.7V ; off < 0.4V Auxiliary voltage output 15V reference to pin2 (HV-). The maximum load current is 0.1A

Application
Application example: BLDC drive application

AC Input

ACL ACN FG
VFD-350C-230

U V W
PWM_UH PWM_UL PWM_VH PWM_VL PWM_WH PWM_WL

VCC FAULT

RTH

RSH_U

RSH_V

380VDC

RSHW HV+ sensor

HV+ HV- HV-

(CN100) (CN100)

BLDC motor

Mechanical Load
Shaft

Encoder/Hall-effect position sensors
User’s BLDC control board

User’s brake device

Brake Control

1.The figure shows a BLDC drive system set up with VFD-350C-230. 2.Developers can control the PWM signal of 6-switch by using SPWM or SVPWM, etc. for 3-phase voltage modulation, and build the control method base
on the current shunt sensors on 3-phase low-side switch(RSH_U/V/W) and the DC BUS voltage sensor(HV+ sensor) which provided by VFD-350C-230. 3.Developers can select the appropriate BLDC position sensors such as encoder or Hall- effect sensors to fit their applications. 4.It’s suggested to install the brake circuit/device at the HV+/HV- pin( DC BUS,CN100) to avoid the DC BUS OVP when BLDC is decelerating. 5.It’s suggested to shut down the PWM input or connect to brake resistor device for safety when DC Bus voltage is higher than 420V. 6.If VFD-350C-230 was applied with non-appropriate control, such as accelerating too quickly or bad current control, it might trig the VFD- 350C-230’s
fault-state to shut down the output voltage(low-level on FAULT pin).

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W General type Variable Frequency Drive with PFC function
Installation
1.Operate with additional aluminum plate In order to meet the”Derating Curve”and the “Static Characteristics” ,VFD series must be installed onto an aluminum plate(or the cabinet of the same size) on the bottom.The size of the suggested aluminum plate is shown as below. And for optimizing thermal performance, the aluminum plate must have an even and smooth surface (or coated with thermal grease), and VFD series must be firmly mounted at the center of the aluminum plate.
M4*4 300

300

2.With 15CFM forced air

15CFM

FAN

Air flow direction

73mm

100mm
3

File Name:VFD-350C-230-SPEC 2024-05-06

VFD-350C-230 350W AC Input Variable Frequency Drive Module with PFC Function

Accessory List

If you have any control requirement of specific application, please consult MEAN WELL for more details. Motor control board ( Motor control board and VFD drive module should be ordered separately ):

MW’s order No.

Control Board

Assembly Suggestion

Quantity

VFD-CB

1

Typical Application

1 Variable Frequency Module (VFD series)
2 Control board of Variable Frequency Drive (Designed by User or Soluton Provided by MEAN WELL)
3 3-phase Pump Motor

1 Battery
2 Variable Frequency Module (VFD series)
3 Control board of Variable Frequency Drive (Designed by User or Soluton Provided by MEAN WELL)
4 3-phase Wheel Motor for AGV Application

1 Variable Frequency Module (VFD series)
2 Control board of Variable Frequency Drive (Designed by User or Soluton Provided by MEAN WELL)
3 3-phase Fan Motor
4 HEPA for Filtering Air

DEMO KIT
Please contact MEAN WELL for more detail.

VFD Demo Kit Main Function and Features. 1 Built-in VFD-350P-230 and 230V motor. 2 Motor start /stop/ forward/ reverse/speed control. 3 Motor start /stop/forward /reverse indicator right. 4 Motor speed (RDM)display. 5 Control board replaceable. 6 Support external motor connection.

Installation Manual
Please refer to : http://www.meanwell.com/manual.html

File Name:VFD-350C-230-SPEC 2024-05-06

References

• TÜV Rheinland - Home | US | TÜV Rheinland

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