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Service Manual
13
Feed motor
Attention:
Unplug the printer!
Only experienced staff is allowed to open the printer and to proceed measuring.
Measuring point
Description
Correct value
Notes
ST9 PIN28;
D18 anode
FD_EA
release
motor driver phase A
ST9 PIN31;
D19 anode
FD_EB
release
motor driver phase B
ST9 PIN32;
R106
FD_C
control input
motor current
ST9 PIN19;
D17 anode
FD_PA
input signal
motor driver phase A
ST9 PIN33
D20 anode
FD_PB
input signal
motor driver phase B
ST9 PIN30
U15 PIN1 or PIN13
SYNC
≈ 28kHz
synchronisation
motor driver
Schematic drawing of feed signals
Summary of Contents for Vario II series
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Page 7: ...Service Manual 1 WIRING PLANS Electronics ...
Page 8: ...Service Manual 2 CPU Plan of components ...
Page 11: ...Service Manual 5 MEMORY CARD SLOT Option Plan of components ...
Page 13: ...Service Manual 7 INPUT OUTPUT PLATE OPTION Plan of components ...
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