ABB ACS5000 User Manual page 170

• DC link discharges
While the DC link discharges, the CDP control panel shows the following:
1 L -> 600.0 rpm
StateINU OffSeqOn
MOTOR SP 0.00 rpm
POWER 0.0 kW
When the DC link has discharged completely, the status line displays ReadyOn and the
SUPPLY OFF push button changes to a permanent light.
1 L -> 600.0 rpm
StateINU ReadyOn
MOTOR SP 0.00 rpm
POWER 0.0 kW
2. Rack-out, lock-out, ground and tag-out the main circuit breaker.
3. Wait for the GROUNDING SWITCH UNLOCKED buttons on the PCUs to turn yellow, and then
continue with step 4.
Because cooling of the drive continues for a preset time after switching off the main power
supply, the yellow lamp lights up with a delay.
If the lamp does not light up and there is a reason to believe that the grounding circuit is
malfunctioning.
For more information, Section 10.4, "Removing the CDP control panel", page 164.
4. Once the yellow lamp GROUNDING SWITCH UNLOCKED is lit, turn the grounding switch to
the grounded position.
5. When the grounding switch is in the grounded position, the status line alternates between
DCGnd NOpen, NotReadyOn, StateINU NotRdy.
1 L -> 600.0 rpm
StateINU DCGndNopen
MOTOR SP 0.00 rpm
POWER 0.0 kW
6. If necessary, open the doors of medium voltage compartments according to Section 10.6.3,
"Opening and closing the doors", page 171.
PRODUCT
ACS5000W gen. 2
Alternating display message:
– OffSeqOn
– Discharging
– AuxiliaryOn
Alternating display message:
– DCGnd Nopen
– NotReadyOn
DOCUMENT KIND
User manual
PREVENTIVE AND CORRECTIVE MAINTENANCE
DOCUMENT ID.
3BHS799208 E01
REV. LANG. PAGE
J en 170/186