Electrical installation
82
For minimum radio frequency interference, ground the motor cable shield at the
motor end as follows:
• 360 degrees at the lead-through of the motor terminal box
• or by twisting the shield as follows: flattened width >
1/5 · length.
DC connection
The UDC+ and UDC– terminals are intended for common DC configurations of a
number of drives, allowing regenerative energy from one drive to be utilised by the
other drives in motoring mode. Contact your local ABB representative for further
instructions.
Checking the settings of the cooling fan transformer
The voltage transformer of the cooling fan is located at the top right-hand corner of
the drive module. Remove the front cover for adjusting the settings and replace the
cover after setting.
360 degrees grounding
Conductive gaskets
a
b
b > 1/5 · a
Set according to the supply voltage range:
380 V, 400 V, 415 V, 440 V, 480 V or 500 V;
Set to 220 V if the supply frequency is 60 Hz. Set to
230 V if the supply frequency is 50 Hz.
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