Table of Contents
Advertisement
4 Error Codes
EPROM Checksum Failure
90
96
kVsoll Failure
JRS Failure
97
99
Last Reset by watchdog
Timer
02
+15V Supply Error
Iheiz < Istby
03
04
Iheiz > Istby
kVist <> 0
05
06
JR <> 0
Main Inverter Short Circuit
33
Main Inverter Short Circuit
11
kVist > kVmax
12
13
Iheiz > Imax OR JR >
Jrmax
14
kVist < kVsoll
JR < JRS
15
17
Backup Timer
18
Premature Exposure
Termination
Iheiz> Iheiz max
21
Maximum Preparation Time
22
51
kVist < kVsoll (Fluoro)
JR < JRS
(Fluoro)
52
Siemens Ltd. Med India
Initialisation Error Codes
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.
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)
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)
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
The +15V supply from SMPS is polled by the µC through Analog port 0. The
+15V supply should be between +12V to +18V.
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)
The maximum value of Standby current permitted is 1.8 A.
kVist is read by the µC through Analog port 7. During Standby the value of
kVist read should be Zero.
JR is read by the µC through Analog port 1. During Standby the value of JR
read should be Zero.
In standby mode if the Main Inverter Driver (Cable) is disconnected this error
gets activated.
Exposure Error CodEs
This error is displayed when the drivers of the Main Inverter detect short circuit.
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.
Maximum value of Iheiz above which error will be displayed is 4.0 A (4.0V).
Maximum value of mAist is
kVist is continuously polled during exposure. The value of kVist should be
greater than 85% of kVsoll
JR is continuously polled during exposure. The value of JR should be greater
than 50% of JRS.
This error is displayed if regular means of terminating exposure fails and the
backup timer terminates exposure.
backup timer value is set to 2 * mSec +100
Exposure Release Switch is released before the mAs Integrator terminate the
exposure.
This error is displayed if Iheiz exceeds the Iheiz max value.
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.
Same as Code 14. This Error is displayed only during Fluoroscopy.
Same as Code 15. This Error is displayed only during Fluoroscopy.
Version 5.0
Copyright © SIEMENS LTD. All rights reserved. For internal use only
Service Instructions
(kVist ratio : 1 V = 20kV)
(JR ratio : 1 V = 20mA)
71mA
above which error is displayed.
Multimobil 5C
The
Page 19 of 73
Advertisement
Table of Contents
Troubleshooting
