ABB ACS5000 User Manual page 159

ABB
5k A UM
If the DC link is discharged, the message ReadyOn is displayed on
the CDP control panel.
1 L ->
StateINU
MOTOR SP
POWER
If the DC-link voltage does not decrease below 50 V, do not continue
but call ABB. To contact the ABB service organization, see
information.
3 To test the lamp GROUNDING SWITCH UNLOCKED, activate the
lamp test with parameter 16.7.
(For information on setting parameters, see
• If the lamp does not light up, replace it.
• If the lamp lights up after it was replaced, continue with step 7.
• If the lamp does not light up after it was replaced, continue with
step 4.
4 Verify that the MCB (main circuit breaker) is open.
1 If the MCB is open, check that it is locked out.
2 Check if the SUPPLY OFF lamp is lit.
When the lamp is lit, the feedback signal "main circuit breaker
open" is present at digital input DI14 of I/O module A2531.
5 Check if the LED of digital output DO07 (I/O module A2541) is lit.
When the LED is lit, the grounding switches are released.
6 Switch off the circuit breaker (Q1002) for the charging transformer.
This prevents hazardous charging voltages being fed into the drive.
7 Carefully turn the grounding switches to the grounded position if it has
been verified:
■ that hazardous voltages cannot be fed into the drive from the
main power supply or the motor,
■ that the DC link is discharged,
■ that the grounding switches are released (DO07 is energized).
■ that the drive status is ReadyOn.
8 If you cannot turn the grounding switches, continue with
gency release of the door safety
3BHS221906 ZAB E01 Rev. D
Chapter 10 - Preventive and corrective maintenance
600.0 rpm
ReadyOn
0.00 rpm
0.0 kW
switch.
Contact
9.6 Parameters mode.)
10.6.6 Emer-
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