Siemens POLYMOBIL Plus - Page 19

Troubleshooting 3 - 3
Siemens AG SPR8-125.061.02 Page 3 of 4 POLYMOBIL Plus
Medical Engineering Rev. 01 01.00 TD SD 24
Err 8 Braking failure (error when braking the rotating anode - a current was
measured in the auxiliary capacitor C2 during the braking.)
- D915TP ’I1’. No current
must be measured here when braking.
- D915 TP ’I2’. Braking current must be measured here.
- TRIAC ’V7’ or ’V8’ defective? => Replace D925.
Err 9 Pressure switch (oil pressure switch in the single tank generator is
active)
- Tube is overheated?
- Measure D915 plug X8 at pin 8. In case of malfunction, 0V are measured.
Err 10 Rot = 0 (rotating anode speed is 0 on exposure)
The error is only displayed as long preparation is depressed.
- LED ’AR’ on D925 flashes ; is fuse F5 ok?
- Measure at TP ’I1’ and ’I2’. Current has to be present during acceleration.
- Check D925.
- Is the power factor correction capacitor C2 defective?
- Connection to/in the single tank generator ok?
Err 11 Short circuit in main inverter
- Check D960 .
- Check D915 .
- Main inverter frequency too high?
Err 12 KVmax
- Interruption of KVact measurement. Measure TP ’KVN’ and ’KVP’ on D915.
Both signals must have the same amplitude.
- ’KVN’ or
’KVP’ > 70 kV.
- Error in kV measurement circuit?
- Error in kV control circuit?
Err 13 Imax
The tube or filament current is recorded.
- Check the filament circuit.
- Exposure filament basic value incorrectly set (P5 on D915)?
- Tube arcing?
If kVact < kVnom, Err 14 or Err 13 is detected and displayed. Refer also to the
troubleshooting information under Err 14.
Err 14 KVact < KVnom
- Voltage in the capacitor bank too low (D950 TP ’VC’)?
- Defective capacitors /fuses on the capacitor bank (D970)?
-No KVact?
- Error in the measurement circuit on D915?
- Main inverter frequency too low?
- Defect in the main inverter D960?
Err 15 mA
ACT
< mA
NOM
- Check the filament circuit.