Lamp Test; Door Locking System - ABB ACS6080 User Manual

8.7.1

Lamp test

The indicator lamp for the grounding switch and the white lamp (Fig. 8-6)
have an integrated momentary push button. The lamps light up when the
lamp cap is pressed.
8.7.2

Door locking system

All doors of the drive are lockable. Additionally, the doors of the medium
voltage units of the drive are equipped with safety switches and locking
bars. The doors labeled CIU, COU, EXU and WCU are not part of the
interlocking circuit and can be opened when the drive is energized.
Note: For more information, see "9.4.4 Unlocking and opening the doors"
on page 198.
Table 8-1 Medium voltage units with safety switches and locking bars
Standard cabinet units
ARU
LSU
CBU
TEU
1
2
(1) Locking bar in locked position
(2) Locking bar in unlocked position
The safety switches are part of an interlocking circuit that prevents the
doors being opened as long as the DC link is charged. The interlocking
circuit ensures that the:
3BHS842007 E01 REV C
Figure 8-7 Location on the safety switches
ACS6080 USER MANUAL
Optional cabinet units
INU
IFU
IRU
BCU
RBU
VLU
ISU
3
(3) Safety switch
08 OPERATION
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