VM1000 Series
‐28‐
2.2 Electrical wiring
2.2.1 Electrical Operation Condition
VM1000 AC drive is applicable to the low-voltage power electrical system. Make
sure that the following conditions meet the requirements when conducting wiring. If
necessary, please refer to relative national or regional standards.
Item Instruction
Power
distribution
system
Three-phase four-wire system, three-phase five-wire system
Voltage and
frequency range
380VAC，50/60Hz
Power range
Voltage：Three phase 380VAC, permitted fluctuation range ±15%，
Frequency：50/60Hz, permitted fluctuation range ±5%
GND
requirements
The protective earthing,signal ground should be separately wired
Leakage
protection
With the VFD installed, power distribution line, it can not use circuit
breaker with leakage protection etc.As for the VFD application, please
complete equipment grounding measures to ensure the security.
Short-circuit
protection
VFD power supply need to connect with the circuit breaker with short
circuit protection or rapid fuse protector
Start/stop
control
Under normal situation, VFD conduct start /stop control by its panel, control
terminals and other methods.
Usually, it is not suggested to adopt contactor as the switch device at VFD
power-supply side, nor use it as motor’s start/stop control device at VFD output
side. If it is done and contactor is disconnected when operating, it will easily
damage VFD.
Notes: Some industries or equipment (such as elevator) is required to use
contactor as security isolation device at VFD power-supply side and output
side, which is in conformity with the above requirements.
Table 2-3 Electrical Running Condition
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