Inspections by user
ITightness of terminals
IDustiness, corrosion and temperature
ICooling liquid pipe connections
PCoolant antifreeze concentration
Other
IABB-SACE Air circuit breaker maintenance
IABB Contactors maintenance
Recommended every 2nd year actions by the user
PInspection of coolant quality
PInspection of expansion tank air pressure
IExternal circuit of main heat exchanger (temperature/flow/pressure)
Years from start-upItem
21181512963
Coolant
RRRCoolant draining and refill
Liquid cooling circuit
Refer to ACS880-1007LC liquid cooling unit user's manual
(3AXD50000129607 [English])
ABB cooling unit
Cabinet fans
RRCooling fans 230 VAC 50/60 Hz
and 24 VDC
RRCIO module for fan control
(230 VAC and 24 VDC)
RRRCooling fans 115 VAC 50/60 Hz
I/RRI/R
CIO module for fan control
(115 VAC)
1)
Internal cooling fan for circuit boards
RRR7i module internal cooling fan
Aging
RRRBCU/UCU control unit battery
(Real-time clock)
RRControl panel battery (Real-
time clock)
R
Cabinet auxiliary power sup-
plies
2)
RRRBuffer module 24 VDC +F276
Ride through function
2)
1)
Replace CIO module or reset fan counters. Refer to CIO-01 I/O module for distributed I/O bus control user’s manual
(3AXD50000126880 [English]).
2)
Check amount of auxiliary power supplies and buffer modules from cabinet or manufactured bill of materials.
88 Maintenance
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