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5.3. Lockout/Tagout
Service MTTR 0 - 2 h
DANGER
▶ DO NOT access the power sections of the PCS6000 before the converter is
completely disconnected and grounded.
▶ Before the internals of the PCS6000 are accessed for service purposes, the
relevant components of the converter must be de-energized safely.
▶ Follow the Lockout/Tagout procedure in appendix B05.
▶ The Logout/Tagout procedure is to be coordinated with the
site manufacturer.
5.4. Start-up after maintenance or troubleshooting
Service MTTR 0 - 2 h
1. To release the over pressure from the cooling liquid circuit or to empty the cooling
liquid circuit for the replacement of the faulty component, refill the cooling system to
static pressure of 1.3 to 1.7 bar.
For instructions, see the Operation and maintenance manual of the PCS6000 water
cooling system, in Appendix A06 of the Data-sheets components of the user's manual.
2. Check that the water cooling system is ready for operation.
See the user manual for the water cooling unit.
3. Remove safety grounding equipment.
4. Visually check the appearance, cleanliness inside and outside and that no tools,
grounding equipment and other objects are left in any of the units.
5. Check that the grid is energized.
6. Connect all disconnected power supplies.
7. Switch on all MCBs (mini circuit breakers).
8. Make sure the "Bat.-select" switch on the uninterrupted power supply (UPS) module is
set according to electrical drawings ("3.4Ah" in CCU, "7.2Ah" in POU) (see Fig. 8–2).
9. Close all unit doors properly.
All units containing live MV equipment are equipped with door switches and solenoid
coils.
IMPORTANT! If a door is not closed, the converter start will be prevented.
PRODUCT
PCS6000
High voltage!
DOCUMENT KIND
Service manual
DE-ENERGIZING, GROUNDING AND START-UP
DOCUMENT ID.
3BHS600000 E80
REV.
LANG.
PAGE
F
en
70/272
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Troubleshooting
