Pre-Charging
Fault Isolation
Failure Possible Cause Remedy
System does not complete pre-
charging, PRECHARGE VOLTAGE
ERROR is displayed
CB1 under the C-Arm is not
closed.
Verify that CB1 is turned on. If not, turn it on. If it
trips, call service technician.
F4 in Cap/Power Module is open. Service technician will need to replace fuse.
System does not complete pre-
charging, PRECHARGE TIME-
OUT ERROR is displayed
F2 in Cap/Power Module is open. Service technician will need to replace fuse.
Connector is open. Check connectors.
System does not complete pre-
charging, but relays click every few
seconds.
Software failure occurred and
overvoltage protection is
activated.
Try rebooting. If fault persists, service technician
will need to diagnose. Do not leave system turned
on, as some components will become hot.
Adjustment
None
Miscellaneous
The PRE-CHARGE VOLTAGE ERROR message may occur if the battery charger is set to higher than the normal 225.0VDC
output in normal charging mode, with battery pack fully charged. This is especially applicable if AC power is at the low voltage
limit (10 percent lower than normal), with 50 Hz AC power. Check the Battery Charger chapter of this manual for details.
Other common faults are bad connections inside the Cap/Power Module, blown fuses, or battery packs that are overcharged if
left active overnight.
7
Service
Periodic Maintenance
Contents
Schematics
Illustrated Parts
Installation
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