Siemens MOBILETT Plus Service Instructions Manual page 26

2 - 16
Dis-
played
messages
USE 30
CAL 31
Err 32
Not used
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus / - E/ - M
Mode of
Cause
operation
Generator ON The portion of the
CMOS memory
where the customer
kV and mAs limit val-
ues are stored, was
erased.
Generator ON The voltage in the
backup battery on
D1 is below 2.8 V
SPR8-215.898.01
Rev. 05
Display messages
Possible reason
•
The pre-programmed values are
replaced with MOBILETT standard
values. Refer also to "CAL 31".
•
Check the supply voltage on D1,
see page 110**.
•
Check that the voltage in the
backup battery is > 2.8 V and that
the battery jumper is connected.
Refer to page 110**.
•
If the message appeared once it
may indicate a tube arc which has
disturbed the system.
If the "USE 30" message 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 "USE 30" appears repeatedly,
replace D1.
If necessary, reinstall the customer
kV and mAs limit values. Refer to the
section "P14 - Number of kV steps
and upper kV limit and P15 - Upper
mAs limit".
•
The battery is worn out.
•
The battery jumper J1 on D1 is lost
or has bad connection.
•
To change a battery, refer to the
section on replacing the backup
battery.
Page 16 of 22
01.02 SPS-UD
Siemens-Elema AB
Solna, Sweden