Siemens MOBILETT XP - Page 37

Siemens AG SPR8-230.840.01.05.02 MOBILETT XP
11.05 CS SD 24
Error messages 37
Page 37 of 72
Medical Solutions
ERR 6 Ih < I preheat (filament current error)
System
mode:
Standby
Explanation: The instantaneous filament current (test point IH) is less than
the specified nominal value (test point IHS) of the microcontoller (D916).
Action:
• Check the resonant filament current (D916; TP-I), the filament current
(D916, TP-IH), and the nominal filament current value (D916, TP-IHS). IH
and IHS must be the same. (Further information is available in the "Fila-
ment circuit" section of this document).
Possible causes: Defective cable/contacts between D927 (X5) and the sin-
gle tank; fuse F5 blown on D927; D927; D916; ribbon cable X11
(D927-D916); single tank (heating coil, filament transformer).
ERR 7 Ih > I preheat (filament current error)
System
mode:
Standby
Explanation: The instantaneous filament current (test point IH) is greater
than the specified nominal value (test point IHS) of the microcontoller
(D916).
Action:
• Check the resonant filament current (D916; TP-I), the filament current
(D916, TP-IH), and the nominal filament current value (D916, TP-IHS). IH
and IHS must be the same. (Further information is available in the "Fila-
ment circuit" section of this document).
Possible causes: D927; D916.
Rare causes: Defective cable/contacts between D927 (X5) and the single
tank; fuse F5 blown on D927; ribbon cable X11 (D927-D916); single tank
(heating coil, filament transformer).
ERR 8 Static kV measured value <> 0
System
mode:
Standby
Declaration: D916 detects actual kV error.
Action:
• Check the cable connection of measurement data log D907, the single
tank, and D916.X8 (CPU).
Possible causes: Defective single tank, defective cable, defective D916
(CPU).