Troubleshooting; Error Codes - Varian XGS-600 Instruction Manual

Troubleshooting

Error Codes

Error Message
BD COM
GRIDLO
(HFIG bds only)
HITEMP
(HFIG and IMG bds
only)
NOFIL1
(HFIG bds only)
NOFIL2
(HFIG bds only)
Open
(CNV bds only)
P>MAX
(HFIG and IMG bds)
XGS-600 Gauge Controller
Table 4-1 General Error Code
Meaning
Board Comm:
Internal
communication
error
Grid voltage is too
low
Internal temperature
is above 75° C
Filament is open or
cable disconnected
Second filament is
open or cable
disconnected
No Convection
sensor detected
Pressure is above
the maximum
operating point for
the gauge
Cause
Motherboard and sensor
board stopped
communicating
❑
Pressure is too high
causing a glow dis-
charge
❑
HFIG board failure
❑
Fan failure
❑
XGS ventilation
openings blocked
❑
Internal temperature
above 75° C
❑
Filament failure
❑
Ion gauge cable not
connected
❑
Filament failure
❑
Ion gauge cable not
connected
❑
Cable not
connected
❑
Sensor failure
❑
System vented from
vacuum with gauges
on
❑
Attempted to turn
gauges on with vac-
uum near overpres-
sure limit
Action
1. Cycle power to unit
2. Return unit for repair
1. Check BA gauge for grid
to filament short or grid to
housing short
2. Replace gauge
1. Allow unit to cool
2. Check that fan is
operating
3. Ensure that there is
adequate ventilation around
the unit
1. Use second filament
2. Replace BA gauge
3. Check that cable is
installed
1. Replace BA gauge
2. Check internal sensor
board connections
3. Check that cable is
plugged in
1. Check cable
2. Replace sensor
1. Turn gauges off before
venting system or use
AUTO-ON
2. Wait for vacuum to
improve before turning on
ion gauges
4-5