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86 Start-up and operation
Start-up procedure
Action
Safety
WARNING!
Only qualified electricians are allowed to do the work described in this chapter. Obey all
safety instructions in
structions (3AXD50000048633 [English])
If you ignore the safety instructions, injury or death, or damage to the equipment can occur
Checks/Settings with no voltage connected
Ensure that the disconnector of the supply transformer is locked to the off (0) position, ie. no
voltage is, and cannot be connected to the drive inadvertently.
Make sure that the main disconnecting device of the supply unit is open and locked:
• Drives with a main switch-disconnector ([Q1,], option +F253): Open the main switch-discon-
nector of the drive.
• Drives with a main breaker ([Q1], option +F255): Crank the main breaker to DISCONNECTED
position.
Drive with the grounding switch ([Q9] , option +F259): Close the grounding switch.
WARNING! Do not use excessive force. Check the inter-lockings if you cannot turn the
switch. See the delivery-specific circuit diagrams.
Make sure that the charging disconnector [Q4] and the DC switch-disconnector for line-up
charging [Q40] (if present) are open.
Open the auxiliary voltage switch [Q21].
Check the mechanical and electrical installation. See chapter
Check the settings of breakers/switches in the auxiliary circuits. See the delivery-specific circuit
diagrams.
Disconnect any unfinished or uninspected auxiliary voltage (115/230 V AC) cables that lead from
the terminal blocks to the outside of the equipment.
Drives with ground fault monitoring device for IT ungrounded systems (option +Q954): If neces-
sary, adjust the settings of the device. See the circuit diagrams of the delivery and the manual
of the device.
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])
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
Install all shrouds (if removed).
Powering up the auxiliary circuit of the drive
Make sure that it is safe to connect voltage. Ensure that
• nobody is working on the unit or circuits that have been wired from outside into the cabinet
• the cover of the motor terminal box is in place.
Drives with a voltmeter ([P5], option +G334): Make sure that the circuit breaker of the measuring
circuit (F5.1) is closed.
Close the circuit breakers and/or fuse disconnectors supplying the auxiliary voltage circuits.
ACS880 liquid-cooled multidrives cabinets and modules safety in-
and section
154).
Electrical safety precautions (page
Installation
checklist.
Filling up and bleeding
[English]).
43).
and the
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