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55kw 75hp 220v 380v VFD Variable Frequency Drive Optimal V/F Mode

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55kw 75hp 220v 380v VFD Variable Frequency Drive Optimal V/F Mode

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Brand Name :	VEIKONG
Model Number :	VFD500-055G/075GT4B
Certification :	CE, ROHS
Price :	Please contact quotation
Payment Terms :	T/T, Western Union, L/C
Supply Ability :	1000 units per week
Delivery Time :	depends on quantities

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55kw 75hp 220v 380v VFD Variable Frequency Drive Optimal V/F Mode

55kw 75hp 220v 380v vector control inverters frequency drive ac drive

Performance Advantage

Advanced motor control algorithm

High performance open loop vector control

Optimal V/F mode

Excellent ramp slope control

Fast auto-tune (less than 1 minute)

Overload: 150% rated output current, 1 minute

Low frequency torque: 0.5Hz: 100% rated torque 1Hz: 150% rated torque

Item		Specifiation
Input	Inuput Voltage	1phase/3phase 220V:200V～240V 3 phase 380V-480V:380V～480V
	Allowed Voltage fluctuation range	-15%～10%
	Input frequency	50Hz / 60Hz,fluctuation less than 5%
Output	Output Voltage	3phase:0～input voltage
	Overload capacity	General purpose application:60S for 150% of the rated current Light load application:60S for 120% of the rated current
Control	Control mode	V/f control Sensorless flux vector control without PG card(SVC) Sensor speed flux vector control with PG card (VC)
	Operating mode	Speed control,Torque control(SVC and VC)
	Speed range	1:100 (V/f) 1:200( SVC) 1:1000 (VC)
	Speed control accuracy	±0.5% (V/f) ±0.2% (SVC) ±0.02% (VC)
	Speed response	5Hz(V/f) 20Hz(SVC) 50Hz(VC)
	frequency range	0.00～600.00Hz(V/f) 0.00～200.00Hz(SVC) 0.00～400.00Hz(VC)
	Input frequency resolution	Digital setting: 0.01 Hz Analog setting: maximum frequency x 0.1%
	Startup torque	150%/0.5Hz(V/f) 180%/0.25Hz(SVC) 200%/0Hz(VC)
	Torque control accuracy	SVC:within 5Hz10%,above 5Hz5% VC:3.0%
	V/f curve	V / f curve type: straight line, multipoint, power function, V / f separation; Torque boost support: Automatic torque boost (factory setting), manual torque boost
	Frequency giving ramp	Support linear and S curve acceleration and deceleration; 4 groups of acceleration and deceleration time, setting range 0.00s ~ 60000s
	DC bus voltage control	Overvoltage stall control: limit the power generation of the motor by adjusting the output frequency to avoid skipping the voltage fault; Undervoltage stall control: control the power consumption of the motor by adjusting the output frequency to avoid yaw failure VdcMax Control: Limit the amount of power generated by the motor by adjusting the output frequency to avoid over-voltage trip; VdcMin control: Control the power consumption of the motor by adjusting the output frequency, to avoid jump undervoltage fault
	Carrier frequency	1kHz～12kHz(Varies depending on the type)
	Startup method	Direct start (can be superimposed DC brake); speed tracking start

Replace famous brands vfd in general application.

Failure and diagnosis

The VFD500 inverter has perfect protection. If a fault occurs, the inverter will act according to the fault attribute. For more serious faults, the inverter will directly block the output; for general faults, it can be configured to stop or continue to operate according to the scheduled stop mode. After the inverter fails, the fault relay contacts act and the fault code is displayed on the display panel. Before seeking service, users can perform self-checking according to the tips in this section, analyze the cause of the fault, and find a solution.

Fault Name

Fault code

Display

Possible Causes

Solutions

Inverter unit

protection

Er. SC

1: motor insulation aging

2: the cable is damaged and contact, short circuit

3:The distance between motor and inverter are too long.

4: output transistor breakdown

5: the internal wiring of the inverter is loose, or the hardware is bad.

6:brake transistor short circuit

1. Confirm the insulation resistance of the motor. If it is turned on, replace the motor.

2. Check the power cable of the motor

3. Install reactor or output filter

4, seeking technical support

5, seeking technical support

6. Check if the braking resistor is damaged and the wiring is correct.

Over current

during

acceleration

Er.OC1

1: The output circuit is grounded or

short circuited.

2: Motor auto-tuning is not performed.

3: The acceleration time is too short.

4: Manual torque boost or V/F curve is

not appropriate.

5: The voltage is too low.

6: The startup operation is performed

on the rotating motor.

7: A sudden load is added during

acceleration.

8: The frequency inverter model is of

too small power class.

1: Eliminate external faults.

2: Perform the motor auto-

Tuning in cold state

3: Increase the acceleration

time.

4: Adjust the manual torque

boost or V/F curve.

5: Adjust the voltage to normal

range.

6: Select rotational speed

tracking restart or start the

motor after it stops.

7: Remove the added load.

8: Select a frequency inverter

Of higher power class.

Over current

during

deceleration

Er.OC2

1: The output circuit is grounded or

short circuited.

2: Motor auto-tuning is not performed.

3: The deceleration time is too short.

4: The voltage is too low.

5: A sudden load is added during

deceleration.

6: The braking unit and braking

resistor are not installed

1: Eliminate external faults.

2: Perform the motor

auto-tuning.

3: Increase the deceleration time.

4: Adjust the voltage to normal

range.

5: Remove the added load.

6: Install the braking unit

And braking resistor.

Over current

at constant

speed

Er.OC3

1: The output circuit is grounded or

short circuited.

2: Motor auto-tuning is notperformed.

3: The voltage is too low.

4: A sudden load is added during

operation.

5: The frequency inverter model is of

too small power class.

1:Eliminate external faults.

2: Perform the motor auto-tuning.

3:Adjust The voltage to normal range.

4: Remove the addedload.

5: Select a frequency

Inverter of higher power class.

Overvoltage

during

acceleration

Er.OU1

1:the input voltage is too high

2:The surge voltage is mixed in the input power supply.

3: there is an external force to drive the motor to run, or the brake type load is too heavy

4:the acceleration time is too short

5:the motor is shorted to ground

1:the power supply voltage is reduced to the normal range

2:install DC reactor

3:Cancel the external force of the draggable motor or install the brake unit

4: increase the acceleration time

5:eliminate the part of the ground short circuit

Overvoltage

during

deceleration

Er.OU2

1:the input voltage is too high

2:The surge voltage is mixed in the input power supply.

3: there is an external force to drive the motor to run, or the brake type load is too heavy

4:the decceleration time is too short

5:the motor is shorted to ground

1:the power supply voltage is reduced to the normal range

2:install DC reactor

3:Cancel the external force of the draggable motor or install the brake unit

4: increase the decceleration time

5:eliminate the part of the ground

Overvoltage

at constant

speed

Er.OU3

1:the input voltage is too high

2:The surge voltage is mixed in the input power supply.

3: there is an external force to drive the motor to run, or the brake type load is too heavy

4:the acceleration or decceleration time is too short

5:the motor is shorted to ground

1:the power supply voltage is reduced to the normal range

2:install DC reactor

3:Cancel the external force of the draggable motor or install the brake unit

4: increase the acceleration or decceleration time

5:eliminate the part of the ground

Low voltage

Er.Lv1

1: Instantaneous power failure occurs

on the input power supply or input phase loss

2: The frequency inverter's input

voltage is not within the allowable

range.

3: cut off the power during operation

4:the internal wiring of the inverter is loose, or the hardware is bad.

1:Check if the input power supply is abnormal, whether the input power terminal is loose, whether the input contactor or the air switch is abnormal.

2:adjust the voltage to the normal range

3:Power off after the inverter stops

4:seeking technical support

5: For the unstable power supply, if the performance requirements are low, try to enable the undervoltage stall function (P23.00).

Contactor open

Er.Lv2

1: Instantaneous power failure occurs

on the input power supply

2: The frequency inverter's input

voltage is not within the allowable

range.

3: cut off the power during operation

4:the internal wiring of the inverter is loose, or the hardware is bad.

1:Check if the input power supply is abnormal, whether the input power terminal is loose, whether the input contactor or the air switch is abnormal.

2:adjust the voltage to the normal range

3:Power off after the inverter stops

4:seeking technical support

5: For the unstable power supply, if the performance requirements are low, try to enable the undervoltage stall function (P23.00).

Frequency

inverter

overload

Er. oL

1:The load is too large or the motor is blocked.

2:the large inertia load acceleration and deceleration time is too short

3: When the VF is controlled, the torque boost or V/F curve is not suitable.

4:the frequency converter selection is too small

5:overload at low speed operation

1. Reduce the load and check the motor and mechanical conditions.

2, increase the acceleration and deceleration time

3. Adjust the torque boost or V/F curve

4, select the inverter with a larger power level

5. Perform motor self-learning in cold state and reduce carrier frequency at low speed

Motor

overload

Er.oL1

1:The load is too large or the motor is blocked.

2:the large inertia load acceleration and deceleration time is too short

3:When the VF is controlled, the torque boost or V/F curve is not suitable.

4:the motor selection is too small

5:overload at low speed operation

6:Improper setting of motor parameters and motor protection parameters

1. Reduce the load and check the motor and mechanical conditions. Correctly set the motor parameters and motor protection parameters.

2, increase the acceleration and deceleration time

3. Adjust the torque boost or V/F curve

4, select a motor with a higher power level

5. Perform motor self-learning in cold state and reduce carrier frequency at low speed

6, check the settings of related parameters

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