Shielded Cable Connection - INVT Goodrive880 Series Hardware Manual

Goodrive880 Series Inverter Unit Hardware Manual

4.3.4 Shielded cable connection

The shield layer of signal cable is grounded at both ends, of which the grounding points must be the same.
That is, if the shield layer at the upper computer side is connected to PE, the shield layer at the drive side is
also connected to PE; if the shield layer at the upper computer side is connected to GND, the shield layer at
the drive side is also connected to GND. It is recommended to connect the both ends of the shield layer to PE,
which is the housing.
The unshielded part of the control cable that is shielded should be as short as possible, and the shield layer
is connected to the nearest PE end. If the cable is stripped too long, the core is susceptible to interference of
signals, especially analog, communication, and encoder signals.
The shield layers of the input power and output motor cables should have large contact with the shield
board inside the installation cabinet to achieve good EMC shield effect. The specific installation and fixing
method can be referred to the following diagram.
202311 (V1.0)
Figure 4-7 Control cable shield connection
The non-shield part of
cable should be as short
as possible
The shield layer is connected
to the housing or the
grounding bar.
Figure 4-8 Power cable shield connection
Shielded Shielding
busbar layer
Outer layer of wire
Control
cable signal
Shield layer
grounding
AC wires
EMC shield clamp
PE busbar PE potential
Electrical installation
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