MOBILETT Plus / - E/ - M SPR8-215.898.01 Page 4 of 22 Siemens-Elema AB
Rev. 05 01.02 SPS-UD Solna, Sweden
2 - 4 Display messages
Err 6 During
preparation
or
exposure
The rotating anode
frequency cannot be
maintained above
142 Hz.
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
Dis-
played
messages
Mode of
operation
Cause Possible reason
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1
Ω
Ω
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