• Shenzhen Veikong Electric Co., Ltd.
    Tayfun from Turkey
    Veikong solar pump inverter is really in very good quality and we also prepared some promotional products for exhibition. We are going to make new orders soon. Last year there was only one local agent and this year, there are more than 8. Some of them only sell Veikong!
  • Shenzhen Veikong Electric Co., Ltd.
    Cristian from Chile
    It’s very good! LCD options make it much easier to use. That’s the strong point, easy of use. And robust. Great PC software.
  • Shenzhen Veikong Electric Co., Ltd.
    Brahim assad from Syria
    VEIKONG VFD500 output frequency is stable when the others are fluctuating. Also output current is less than others, that’s why output frequency is higher too which can save more energy.
Contact Person : Terry
Phone Number : 008613923736332
WhatsApp : +8613923736332
IP20 IP21 Variable Frequency Controller VFD With LCD displays
Place of Origin China
Brand Name VEIKONG
Certification CE IEC ISQ
Model Number VFD500
Minimum Order Quantity 22 pcs
Price negotiable
Packaging Details paper carton under 45kw, starting from 45kw wooden case for packing
Delivery Time 3-8 working days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 15000 per/ month
Product Details
Display Models New LCD Displays IO Board Version IO Board 2
Color Blue And White Brand Name Veikong
Warranty 18 Months Product Name Variable Frequency Drive VFD
High Light

IP21 Variable Frequency Controller


IP20 Variable Frequency Controller


IP21 Variable Frequency Drive VFD

Product Description

IP20 IP21 Variable Frequency Controller VFD With LCD Displays


IP20 IP21 Variable Frequency Inverters Controllers LCD display With New Version IO Board
1. VFD500 hot selling frequency inverter with new LCD display model product features 
1) Big torque in low frequency which can sure soft operation in some areas request high precision
2) Both tension control and torque mode control are suitable for our machine 
3) This model support some applications which requires more input terminals 
4) Support motor selfing learning, auto tunning 
2. VEIKONG hot selling VFD500 frequency inverter technical data 


Keypad LED Digital keyboard and LCD keypad(option)


MODBUS communication


PG card Incremental Encoder Interface Card (Differential Output and Open Collector), Rotary Card, frequency division signal pg card
Input terminal


5 digital input terminals, one of which supports high-speed pulse input up to 50kHz;

2 analog input terminals, support 0 ~ 10V voltage input or 0 ~ 20mA current input;

Option card:

4 digital input terminals

2 analog input terminals, support-10V-+10V voltage input

Output terminal


1 digital output terminal;

1 high-speed pulse output terminal (open collector type), support 0 ~ 50kHz square wave signal output;

1 relay output terminal (second relay is an option)

2 analog output terminals, support 0 ~ 20mA current output or 0 ~ 10V voltage output;

Option card: 4 digital output terminals


Refer to Chapter 6 "Troubleshooting and Countermeasures" for the protection function


Installation location Indoor, no direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt.
Altitude 0-3000m.inverter will be derated if altitude higher than1000m and rated output current will reduce by 1% if altitude increase by 100m
Ambient temperature -10°C~ +40°C, maximum 50°C (derated if the ambient temperature is between 40°C and 50°C) Rated output current decrease by 1.5% if temperature increase by 1°C
Humidity Less than 95%RH, without condensing
Vibration Less than 5.9 m/s2 (0.6 g)
Storage temperature -20°C ~ +60°C


Installation Wall-mounted, floor-controlled cabinet, transmural
Protection level IP20
cooling method Forced air cooling



Internal EMC filter

Complies with EN61800-3

Category C3

3rd Environment


3. Veikong VFD500 New Version IO Board
IP20 IP21 Variable Frequency Controller VFD With LCD displays 0

4. Veikong product brochure and user manual download center 
VEIKONG VFD500 high performance vector and torque ...
veikong catalog latest.pdf
5. Motor Wiring
◆ It is forbidden to short circuit or ground the inverter output terminal, otherwise the internal components of the inverter will be damaged.
◆ Avoid short circuit the output cables or with the inverter enclosure, otherwise there exists the danger of electric shock.
◆ It is forbidden to connect the output terminal of the inverter to the capacitor or LC/RC noise filter with phase lead, otherwise, the internal components of the inverter may be damaged.
◆ When contactor is installed between the inverter and the motor, it is forbidden to switch on/off the contactor during the running of the inverter, otherwise, there will be large current flowing into the inverter, triggering the inverter protection action.
◆ Length of cable between the inverter and motor If the cable between the inverter and the motor is too long, the higher harmonic leakage current of the output end will produce by adverse impact on the inverter and the peripheral devices. It is suggested that when the motor cable is longer than 100m, output AC reactor be installed. Refer to the following table for the carrier frequency setting


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