Service Instructions
Multimobil 5C
Siemens Ltd. Med India
Version 5.0
Page 19 of 73
Copyright
©
SIEMENS LTD. All rights reserved. For internal use only
4 Error Codes
Initialisation Error Codes
90
EPROM Checksum Failure
The EPROM Checksum is stored at 7FFEh and 7FFFh as a 16-bit word.
During self-Diagnostics the software calculates the checksum of the EPROM
and compares with the stored checksum.
96
kVsoll Failure
During Self-Diagnostics the software outputs 7Fh to the D/A converter (B). The
2.5V at the output of the D/A converter is Read by the µC through Analog Port
4. The value read should be greater than 7Ah and less than 86h. (I.e. between
2.39V and 2.62V)
97
JRS Failure
During Self-Diagnostics the software outputs 7Fh to the D/A converter (A). The
2.5V at the output of the D/A converter is Read by the µC through Analog Port
3. The value read should be greater than 7Ah and less than 86h. (I.e. between
2.39V and 2.62V)
99
Last Reset by watchdog
Timer
The built-in Watchdog timer (WDT) is reset by the software every 25 msec. If
due to some failure the software doesn’t reset the WDT, the WDT in turn will
reset the µC after 65 msec.
Standby Error CodEs
02
+15V Supply Error
The +15V supply from SMPS is polled by the µC through Analog port 0. The
+15V supply should be b12V to +18V.
03
Iheiz < Istby
The Filament Standby current is 1.5A. Iheiz read by the µC through Analog
port 2 should be greater than 1.25A. i.e. 1.25V (Iheiz ratio : 1V = 1A)
04
Iheiz > Istby
The maximum value of Standby current permitted is 1.8 A.
05
kVist <> 0
kVist is read by the µC through Analog port 7. During Standby the value of
kVist read should be Zero. (kVist ratio : 1 V = 20kV)
06
JR <> 0
JR is read by the µC through Analog port 1. During Standby the value of JR
read should be Zero. (JR ratio : 1 V = 20mA)
33
Main Inverter Short Circuit
In standby mode if the Main Inverter Driver (Cable) is disconnected this error
gets activated.
Exposure Error CodEs
11
Main Inverter Short Circuit
This error is displayed when the drivers of the Main Inverter detect short circuit.
12
kVist > kVmax
The PkV is monitored for Max.115kV. If the actual value of kV is greater than
this i.e. if the voltage cross 3.83V error is displayed.
13
Iheiz > Imax OR JR >
Jrmax
Maximum value of Iheiz above which error will be displayed is 4.0 A (4.0V).
Maximum value of mAist is
71mA
above which error is displayed.
14
kVist < kVsoll
kVist is continuously polled during exposure. The value of kVist should be
greater than 85% of kVsoll
15
JR < JRS
JR is continuously polled during exposure. The value of JR should be greater
than 50% of JRS.
17
Backup Timer
This error is displayed if regular means of terminating exposure fails and the
backup timer terminates exposure. The
backup timer value is set to 2 * mSec +100
18
Premature Exposure
Termination
Exposure Release Switch is released before the mAs Integrator terminate the
exposure.
21
Iheiz> Iheiz max
This error is displayed if Iheiz exceeds the Iheiz max value.
22
Maximum Preparation Time
This error is displayed if exposure mode is not entered by the system after
exposure switch selection for more than 15 sec because of hardware failure.
51
kVist < kVsoll (Fluoro)
Same as Code 14. This Error is displayed only during Fluoroscopy.
52
JR < JRS (Fluoro)
Same as Code 15. This Error is displayed only during Fluoroscopy.