XRBHR/XRBD SERIES MONOBLOCK® MANUAL
9
118185-001 REV B
Chapter 4
Diagnostics
4.1
Fault/Symptom
Possible Cause
Over Voltage fault resulting in
shutdown of the high voltage
power supply.
kV programming set greater than maximum specified
kV.
Under Voltage fault resulting in
shutdown of the high voltage
power supply.
AC input voltage lower than minimum specified.
Over Current fault resulting in
shutdown of the high voltage
power supply.
mA programming greater than maximum specified mA.
Under Current fault
kV programming is less than 35kV or AC input voltage
below spec.
Over Temperature fault
resulting in shutdown of the
high voltage power supply.
Internal oil temperature is above 65 degrees C. May be
caused by operation at ambient temperature greater than
40°C or failure of a pump/cooling fan. Check that the
fans and pump are operational and that there are no
obstructions.
Temperature Warning fault
Indicates the oil temperature is greater than 58 degrees C.
Verify that the ambient temperature is less than 40°C.
Check that the fans and pump are operational and that
there are no obstructions.
ARC fault resulting in the ARC
fault being reported for 30
seconds while the high voltage
power supply remains on.
Occurrence of tube arc. If the arcing becomes regular the
X-ray tube may require additional warm up or seasoning.
ARC fault resulting in
shutdown of the high voltage
power supply.
At least four arcs occurred in a ten second period. The X-
ray tube may require additional seasoning. Season the X-
ray tube following the 14-30 days seasoning protocol. If
problem continues contact Spellman service department.
Overpower fault
The unit has exceeded the maximum rated power.
Interlock fault resulting in
shutdown or failure to turn on
the high voltage power supply.
Verify the 24VDC interlock enable signal is present at
pins 1 and 2 of the analog interface connector.
TABLE 1