Wiring Procedure Of The Main Circuit Terminals - INVT Goodrive350 Series Operation Manual

Goodrive350 series high-performance multifunction VFD
Terminal
380V 37kW and
lower
Braking resistor
PB
terminal 2
PE
Note:

Do not use asymmetrical motor cables. 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.

Braking resistor, braking unit and DC reactor are optional parts.

Route the motor cable, input power cable and control cables separately.

"Not available" means this terminal is not for external connection.

GD series VFDs cannot share the DC bus with CH series VFDs.

When sharing the DC bus, the VFDs must be the same in power and must be simultaneously
powered on or off.

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 procedure 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 braking resistor which carries cables to the designated position.
4. Fix all the cables outside the VFD mechanically if allowed.
Terminal name
380V
45–110kW
(inclusive)
Grounding resistor is less than 10 ohm
NG
The screw is
not fastened.
Figure 4.17 Screw installation diagram
380V 132kW and
higher
660V
Not available
Y
The screw is
fastened.
-26-
Installation guide
Function description
braking resistor terminal
Grounding terminal for safe
protection; each machine must
carry two PE terminals and
proper grounding is required