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42 Start-up
Tasks
Make sure that the mechanical and electrical installation of the unit has been inspected and is
OK. See the installation checklist.
Make sure that the drive is ready for the power up:
• The supply and inverter units have been installed according to the instructions given in their
hardware manuals.
• The supply unit has been started up according to the instructions given in the appropriate
supply unit manual.
• The inverter units have been started up according to the instructions given in the hardware
manual and appropriate firmware manual.
Note: If the drive has been stored over one year: Reform the electrolytic DC capacitors in the DC
bus of the drive. See the separate reforming instructions (available in the Internet or from your
local ABB representative).
Close the auxiliary voltage circuit breaker of the DC feeder unit [F22]. Close also other circuit
breakers of auxiliary circuit of the DC feeder unit if any (vary depending on the delivery). See the
circuit diagrams delivered with the drive.
Starting and checking the cooling system
Fill up and bleed the internal cooling circuit. Start the cooling unit up. See ACS880-107LC inverter
units hardware manual (3AXD50000196111 (English)) and ACS880-1007LC liquid cooling unit
user's manual (3AXD50000129607 (English)).
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.
Closing the cabinet doors
Close all cabinet doors
Connecting voltage to the drive and its auxiliary circuits
Connect main AC voltage to the input terminals of the drive supply unit. (Close the main breaker
of the supply transformer.)
Close the main disconnecting device of the drive: Rack in the main breaker ([Q1], option +F255),
or close the main switch/disconnector (option +F253).
Close the auxiliary voltage switch [Q21] of the drive supply unit.
Do not close the main circuit breaker ([Q1] option +F255) or the main contactor ([Q2], option
+F250) of the drive supply unit yet!
Energizing the drive and DC feeder unit - DC feeder unit without DC switch/disconnector ([Q11], no
option +F290)
WARNING!
When you start the supply unit, the drive DC bus will be energized, as will all the units
connected to the DC bus. If you want to prevent this for any of the units, open its DC
switch/disconnector (if available), or remove its DC fuses.
1. Make sure that the energy storage disconnector is open. Indicator [P12] is on.
2. Start the drive supply unit and energize the drive: Use operating switch [S21] on the door of
the drive incoming cubicle. See the supply unit hardware manual.
3. Make sure that the energy storage is charged and ready for the DC feeder unit connection.
The voltage of the energy storage and the DC feeder unit must be on the same level to avoid
inrush currents.
4. Close the energy storage disconnector. Indicator [P12] goes off.
5. Close the energy storage circuit breaker.
The energy storage is connected to the drive DC link.
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