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60 Start-up
Tasks
Starting and checking the cooling system
Fill up and bleed the internal cooling circuit. Start the cooling unit up. See
the internal cooling circuit (page
If the drive is equipped with a cooling unit (ACS880-1007LC): Start up and power up the cooling
unit. See ACS880-1007LC liquid cooling unit user's manual (3AXD50000129607 [English]) and
the delivery-specific circuit diagrams.
Check the cooling system for leaks. Make sure that cooling circuit joints at the shipping split
joining cubicles are tight and that all drain valves have been closed.
Make sure that the coolant can flow freely in all cubicles. Make sure that drive system cools
down. See ACS880-1007LC liquid cooling unit user's manual (3AXD50000129607 [English]).
Install all shrouds (if removed) and close the cabinet doors.
Powering up the DC bus and starting up the inverters
Make sure that all cabinet doors are closed.
Close the disconnector of the supply transformer.
Close the drive auxiliary voltage switch [Q21] to power up the control units.
Start the supply unit. See the procedure in the supply unit hardware manual. When started, the
supply unit charges the capacitors of all inverters and brake units connected to the DC bus.
Start up the inverter units. See the procedure in the inverter unit hardware manual.
Brake units with DC switch/disconnector (option +F286): Connecting the brake unit to the DC bus
To charge the brake unit capacitors, close the charging switch [Q10].
When the green light on the cabinet door illuminates, close the DC switch/disconnector [Q11]
of the brake unit.
Open the charging switch [Q10].
Note: The brake unit can start only after the charging switch is open.
Setting up the brake and inverter unit parameters
Check the brake control program parameter settings. See ACS880 brake control program firm-
ware manual (3AXD50000020967 [English]).
Operational tests
Test the operation of the braking. See ACS880 brake control program firmware manual
(3AXD50000020967 [English]).
82).
Filling up and bleeding
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