Siemens MOBILETT Plus HP Service Instructions Manual page 16

2 - 4
Dis-
played
messages
Err 6
* See section "Monitoring the kV and mA values"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus HP
Mode of
Cause
operation
During The rotating anode
preparation frequency cannot be
or exposure maintained above
142 Hz.
SPR8-220.061.03
Rev. 03
Display messages
Possible reasons and advice
At preparation: The anode is acceler-
ated for 2 s, the speed is measured.
If the rotation is too slow, the acceler-
ation phase is repeated and retested.
If the rotation is still too slow or the
anode looses speed too fast, a mes-
sage will be displayed.
Remove K64 (page 140**) during the
next test.
•
Activate the radiation release
switch to the first level (preparation)
and listen for the anode to start up
(see page 150**).
•
Check that the following supply
voltages are present on D4,
+100 V, +15 V, +5 V DC (see page
150**).
•
Check that the trigger pulses are
present at "ROT"; when the anode
is accelerated (see page 150**).
•
Check that the measuring signals
"ROT_VAL" on D4 and "ROT" on
D1 are OK (see page 150**).
•
Turn off the unit and remove K61.
Measure the stator winding in the
power plug.
K61: 3-2 = 8
K61: 1-2 = 5
Page 4 of 22
09.03 CS PS 24
Ω
Ω
Siemens AG
Medical Solutions