3BHS842007 E01 REV C
ACS6080
USER MANUAL
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08 OPERATION
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”
Figure 8-7 Location on the safety switches
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:
Table 8-1 Medium voltage units with safety switches and locking bars
Standard cabinet units
Optional cabinet units
ARU
INU
LSU
IFU
CBU
IRU
TEU
BCU
RBU
VLU
ISU
(1) Locking bar in locked position
(2) Locking bar in unlocked position
(3) Safety switch
1
2
3