ABB ACQ810 - DC Connection; Checking the Settings of the Cooling Fan Transformer

76 Electrical installation
• 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 utilized 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.
a
b
b > 1/5 · a
Set according to the supply voltage range:
380 V, 400 V, 415 V, 440 V or 480 V
Set to 220 V if the supply frequency is 60 Hz. Set to
230 V if the supply frequency is 50 Hz.