Control Circuit Terminal - Veikong VFD500 Series Operation Manual

VFD500 high performance vector control frequency inverter user manual
◆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.

3.2.4 Control Circuit Terminal

V
I
485 AI1 AI2 AO1AO2
+10V
AI1 AO1
GND
AI2 AO2
Jumper switch
PE1 PE2
485+ GND DI1 DI2
485- COM
DO1
Diagram 3-11 VFD500 control circuit terminal
Chapter3 Product appearance and wiring
DI3 HDI
DI4
HDO
COM PLC +24V
- 15-
T1/A
T1/B
T1/C
T2/A T2/B T2/C