Siemens MOBILETT Plus Service Instructions Manual page 14

2 - 4
Dis-
played
messages
Err 6
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus / - E/ - M
Mode of
Cause
operation
During The rotating anode
preparation frequency cannot be
or maintained above
exposure 142 Hz.
SPR8-215.898.01
Rev. 05
Display messages
Possible reason
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, a message 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; refer to page
150**.
•
Check that the following supply
voltages are present on D4,
+100 V, +15 V, +5 V DC, refer to
page 150**.
•
Check that the trigger pulses are
present at "ROT"; when the anode
is accelerated, refer to page 150**.
•
Check that the measuring signals
"ROT_VAL" on D4 and "ROT" on
D1 are OK, refer to page 150**.
•
Turn off the unit and remove K61.
Measure the stator winding in the
power plug.
K61: 3-12 = 8
K61: 1-2 = 5
Page 4 of 22
01.02 SPS-UD
Ω
Ω
Siemens-Elema AB
Solna, Sweden