ABB ACS880-604LC, Hardware Manual

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Start-up
Contents of this chapter
This chapter contains the start-up procedure of a brake unit.
WARNING!
Only qualified electricians are allowed to perform the work described in this chapter.
Obey all safety instructions in Safety instructions for ACS880 liquid-cooled multidrive
cabinets and modules (3AXD50000048633 [English]).
If you ignore the safety instructions, physical injury or death, or damage to the
equipment can occur.
Note:
New brake resistors may be coated with storage grease. As the brake chopper operates
for the first time, the grease burns off and may produce some smoke. Make sure there is
proper ventilation.
Start-up procedure
Additional information Action
Preliminary actions
WARNING!
Make sure that the disconnector of the supply transformer is locked to open position, ie, no voltage
is, or can be, connected to the drive inadvertently. Check also by measuring that there is no voltage
connected.
See Installation checklist (page 49) .
Check that the mechanical and electrical installation of the brake
chopper has been inspected and is OK.
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