during the DC link capacitors discharge. After the DC link capacitors have discharged
completely the cabinet doors of the power compartments unlock and the SUPPLY OFF
pushbutton changes to a permanent light. The power modules can the be grounded with
the supplied grounding hook (for details see
Control unit
1
3
5
2
4
9
1
Control supply, mini circuit breakers
2
MCB control relays
3
Customer terminal blocks and cable
duct
4
Control unit (BCU)
5
Local control equipment (backside)
6
Fan supply, breakers
Control compartment with open swing frame
Function and hardware description 33
Shutting down the drive for
7
24 VDC power supply for control
8
-24 VDC converter for control
9
EMC cushions for cable bottom entry
10
PE busbar
11
I/O controller
12
Terminal blocks & fuses
maintenance).
6
8
12
11
7
10