VM1000 Series
‐33‐
（6）Main circuit terminal and function are as shown on the table below
Terminal
sign
Name Instruction
R、S、T
Three phase power supply input
terminals
Connect to three phase AC power supply
(+)、(-)
Positive and negative AC bus
terminals
Common DC bus input point(connect the
external braking unit to AC drive of 30kw
or above)
(+)、PB
Connecting terminals of brake
resistor
Connect to braking resistor for AC drive
of 22kw and below
P、(+)
Connecting terminals of external
reactor
Connect to an external reactor
U、V、W VFD output terminals Connect to a three-phase motor
Grounding terminal
Ground Terminals
Table 2-4 Main Circuit Terminals and Function
（7）Wiring Precautions
A: Input Power R、S、T
The cable connection on the input side of the AC drive has no phase sequence
requirement.
B: DC bus terminals (+), (-)
Terminals (+) and (-) of DC bus have residual voltage after the AC drive is
switched off. Before touching the equipment, wait until power indicator goes off
and make sure it is lower than 36V. Otherwise, you may get electric shock.
–– connecting external braking components for the AC drive of 30 kW or above.
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