Chart 3; Chart 4 - Siemens MOBILETT XP Troubleshooting Manual

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Chart 3

"Standby operation"
The following functions are checked:
- Internal hardware monitoring on D916
- Monitoring of the supply voltage
- Monitoring of the oil pressure and temperature lines
- Monitoring of the short-circuit inverter lines (main inverter/filament inverter)
- Monitoring of the capacitor voltage
- Controlling of the capacitor charger
- Hybrid/Digital only: Monitoring the battery voltage
- kV and mAs can be selected via the keyboard (only for XP Digital in the manual
mode).
If the above functions are correct, exposure switch S27 can be set to "exposure prepara-
tion".
On failure of the above functions, the standby mode is interrupted. The system must be
restarted.
The following error messages are possible:
- ERR 1 error value of +15 V
- ERR 3 oil pressure high or tube overheated
- ERR 4 static short-circuit at the main inverter
- ERR 6 Ih < I preheat (filament current error)
- ERR 7 Ih > I preheat (filament current error)
- ERR 8 static kV measured value <> 0
- ERR 9 static mA measured value <> 0
- ERR 10 battery voltage <= 125 V or defect in a battery pack
- ERR 11 voltage at the capacitor bank too high
- ERR 12 short-circuit signal at the filament inverter
- ERR 13 low voltage at the capacitor bank
- ERR 14 battery/charger switching error
- ERR 15 static short-circuit at the filament inverter

Chart 4

"Preparation" for exposure release
The following functions are checked and/or performed:
- Query of all standby functions (see chart 3)
- Start of rotating anode rotation
- Start of preheating (pushing) of tube filament heating
- Start of monitoring of the filament circuit
- Start of monitoring of the exposure switch
MOBILETT XP
General Information on Troubleshooting
SPR8-230.840.01.05.02
11.05
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