Siemens MOBILETT Plus Service Instructions Manual page 28

2 - 18
Dis-
played
messages
Err 35
Err 36
The mes-
sage is not
shown to
the opera-
tor. This
message
can only
be read
out from
the mes-
sage his-
tory, P08.
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus/ Plus E
Mode of
Cause
operation
Generator ON Temporary fault in
the program execu-
tion, which was cor-
rected by the "watch
dog"
Generator ON The inverter was
interrupted once,
e.g. overcurrent.
SPR8-215.898.02
Rev. 01
Display messages
Possible reasons and advice
•
Check the supply voltages on D1,
see page 110**.
•
If the message appeared once, it
may have been caused by a tube
arc that disturbed the program
execution. If the message "Err 35"
occurs repeatedly, the single tank
must be checked according to
"Error diagnosis HT and single
tank". If the function of the single
tank is OK and "Err 35" appears
several times, replace D1.
If the inverter has been stopped
more than 3 times, the exposure will
be interrupted and the Err 23 mes-
sage is shown on the display.
•
Check the inverter current, refer to
the section "Error diagnosis HT
and single tank". Refer also to
"P13 - Inverter test".
•
The X-ray tube may have arced
during the exposure. If the first
exposure after a long interval is an
exposure with high kV values, tube
arcs can occur.
The unit has to be started with
several exposures at high mAs
values. The kV values selected
should be from 40 kV increased to
133 kV.
Refer also to "Error diagnosis HT
and single tank".
Page 18 of 22
01.02 SPS-UD
Siemens-Elema AB
Solna, Sweden