ABB ACS880-304 +A018, Hardware Manual

Page: 105 / 280

Electrical installation 105
Connecting auxiliary power to the diode supply module
The cabinet builder can arrange an auxiliary AC power supply of 230 V AC (or 115 V AC
with G304) to connector X50 to power the electronics of each supply module.
There is an internal power supply (BDPS) in the module that produces 24 V DC from the
auxiliary voltage for the internal circuit boards.
If a direct-on-line fan (C188) is used, the user must connect the fan supply to the
module control connector X50. The optional heating element (D8T C183) also
requires external AC power supply to the module control connector X50.
For connectors X50, see Connectors X50 and X53 of D7T supply module on page 29 and
Connectors X50 and X53 of D8T supply module on page 31 .
The plug connector is available from ABB. See section Control circuit plug connectors for
supply modules on page 188 . See also section Auxiliary circuit current/power consumption
on page 224 .

Connection procedure
WARNING! Only qualified electricians are allowed to do this work. Read the
complete safety instructions of the drive. Ignoring the instructions can cause
physical injury or death, or damage to the equipment.
1. Disconnect the drive from the AC power line and make sure it is safe to start the work.
Obey the instructions in section Basic electrical safety precautions on page 96 .
2. Route the cable. Obey the general routing guidelines in section Connecting the control
cables on page 107 .
3. Connect the cable from the auxiliary power supply to plug connector X50.
4. Plug connector X50 to its counterpart in the module.