PREVENTIVE AND CORRECTIVE MAINTENANCE
PRODUCT
ACS6000
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS212794 E01
REV.
N
LANG.
en
PAGE
228/266
10.4.7.2. Safety-switch settings
Figure 10-12 Safety switch settings
10.4.7.3. Unlocking a safety switch
1. To access the release dial, remove the screw cap.
2. Loosen the locking screw (1) until the release dial can be turned.
3. Turn the release dial from the locked to the unlocked position.
You can now actuate the locking bar and open the doors.
Location Setting Description
1) Unlocked Enables opening the door of a medium voltage unit
whether the auxiliary voltage is switched on or off.
2) Release dial Direction of arrow indicates safety switch status, ie,
locked or unlocked
3) Locked Normal operating setting.
To open the door of a medium voltage unit, the DC link
must be discharged and the auxiliary voltage must be
switched on.
1
2 3
1
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