Goodrive350 IP55 High-ingress Protection Series VFD
Installation Guide
-23-
Terminal sign
Terminal name
Function description
R, S, T
Main circuit power input
3PH AC input terminal, connect to the grid
U, V, W
VFD output
3PH AC output terminal, connect to the motor
(+)
Brake unit terminal 1/Brake
resistor terminal 1
(+) and (-) are connected with the terminals of
brake unit.
PB and (+) are connected with the terminals of
brake resistor.
(-)
Brake unit terminal 2
PB
Brake resistor terminal 2
PE
Grounding terminal for safe
protection
; each machine must carry two PE terminals and
proper grounding is required
Note:
1. Do not use asymmetrical motor cable. If there is a symmetrical grounding conductor in the
motor cable besides the conductive shielded layer, ground the grounding conductor on the
VFD end and motor end.
2. Brake resistor, brake unit and DC reactor are optional parts.
3. Route the motor cable, input power cable and control cables separately.
4. "None" means this terminal is not for external connection.
5. GD series VFDs cannot share the DC bus with CH series VFDs.
6. When sharing the DC bus, the VFDs must be the same in power and must be
simultaneously powered on or off.
7. In shared DC bus running mode, current balance on the VFD input side must be considered
during wiring, and equalizing reactors are recommended to be configured.
4.3.3 Wiring process of the main circuit terminals
1. Connect the grounding line of the input power cable to the grounding terminal (PE) of the
VFD, and connect the 3PH input cable to R, S and T terminals and tighten up.
2. Connect the grounding line of the motor cable to the grounding terminal of the VFD, and
connect 3PH motor cable to U, V and W terminals and tighten up.
3. Connect the brake resistor which carries cables to the designated position.
4. Fix all the cables outside the VFD mechanically if allowed.
Figure 4-14 Screw installation diagram
The screw is
not fastened
The screw is
fastened
Y
NG
