ABB ACS880-204LC, Руководство по оборудованию

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Tasks
Starting and checking the cooling system
Fill up and bleed the internal cooling circuit. Start the cooling unit up. See section Filling up and
bleeding the internal cooling circuit (page 174) .
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 the drive system cools down.
Powering up the IGBT supply unit
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 cabinets
• covers of the motor terminal boxes are on.
Close the circuit breakers supplying the auxiliary circuits [F22,..., F26].
Close the cabinet doors.
Close the main breaker of the supply transformer.
Switch the auxiliary voltage switch [Q21] on.
Setting up the supply unit parameters
Check the correct voltage range, parameter 195.01 Supply voltage .
If your supply unit consists of more than one module, parameters 195.30 Parallel type filter and 195.31
Parallel connection rating id need to be set. First, select the correct voltage range with parameter
195.30 Parallel type filter . Then, select the correct supply unit type with parameter 195.31 Parallel
connection rating id .
If you need more information on the use of the control panel, see ACX-AP-x assistant control panels
user's manual (3AUA0000085685 [English]).
Switch the control panel to the remote mode (Loc/Rem key) to enable control of the supply unit with
the operating switch [S21].
Switching the supply unit on
WARNING!
If the drive is equipped with a brake unit, make sure there are inverters connected to the inter-
mediate circuit before closing the main circuit breaker [Q1]. A rule of thumb: The sum capacit-
ance of the inverters connected must be at least 50% of the sum capacitance of all inverters.
If there is not enough capacitive load at start, the DC voltage will overshoot the overvoltage
limit, causing immediate start of the brake unit. Constant braking will overload brake choppers
and resistors and cause overheating.
Units with a DC switch-disconnector [Q11]: Make sure that all DC switch-disconnectors [Q11] are
closed and charging switches [Q10] are open in all IGBT supply module cubicles. See also
Additional
instructions for closing the DC switch-disconnector (page 120) .
Switch the main disconnecting device (main switch-disconnector or main circuit breaker) [Q1] on.
Drives with a charging switch [Q3] and a DC switch-disconnector for line-up charging [Q40]: Close the
charging switch [Q3] and the DC switch-disconnector for line-up charging [Q40].
Turn the operating switch [S21] to on (1) position to activate the Run enable signal.
On-load checks
Check that the supply module cooling fan rotates freely in the right direction.
Start-up 119
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