Grounding Switch Is Not Released - ABB ACS5000 User Manual

3. To lock a door, slide the locking bar from the unlocked (1) to the locked (2)
position.
1
A limit switch monitors the locked position of the locking bars. If any door of
a medium voltage compartment is not locked properly, you cannot start the
drive.

10.6.4. Grounding switch is not released

When the DC link of the drive has been discharged, the lamp GROUNDING SWITCH
UNLOCKED lights up to indicate that the grounding switch is released and can be
turned to the grounded position.
IMPORTANT! DO NOT use force for turning the grounding switch in any direction.
The handle and / or the switch could get damaged.
If the lamp does not light up, proceed as follows:
1) Verify that the main circuit breaker (MCB) is in the open position.
2) Check the drive status on the CDP control panel.
The drive status should be ReadyOn, indicating that the DC link has discharged
and the MCB has opened.
3) Check the actual value of the DC-link voltage on the CDP control panel.
The actual value (parameter 2.30 DC Volt 1-3 MaxVal) must be
< 50 V (discharged).
4) Check if there are any alarm and fault messages on the display.
If there are alarms / faults, contact the ABB service organization
PRODUCT
ACS5000W
2
DOCUMENT KIND
User manual
PREVENTIVE AND CORRECTIVE MAINTENANCE
DOCUMENT ID.
3BHS799208 E01
REV. LANG. PAGE
F en 169/178