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Section F
3.34. RESET -C- FAILED
Every movement (X,Y, R and C) has a maximum time (about 20 s) to
reach the reset position after pressing the RESET pushbutton on
the control panel.
If the C movement does not reach its reset position in time, the
alarm is generated.
Possible causes:
(1)
C movement step motor defective
(2)
belt of the C movement step motor damaged or belt tension
incorrect
(3)
C movement blocked
(4)
C movement step motor +42V power supply is not correct
on the PC1 system control board: this power supply comes
from the PFC board PN1.
Check the power supply value on test points TP1 and TP7
(GND) on the PFC board PN1; by checking the LED H3
(ON=OK, OFF=NOT OK) on the system control board PC1;
by checking the LED V5 (ON=OK, OFF=NOT OK) on the
PFC board PN1.
Check whether fuse F2 on the PFC board PN1 has blown.
PFC board PN1 defective.
System control board PC1 defective.
(5)
wiring damaged between PC1 system control board and C
movement step motor (see principle diagram Z1-9)
(6)
C movement half run position optoswitch S17 damaged
(7)
PC1 system control board is not recognizing the C movement
half run position optoswitch S17 (PC1 board defective)
(8)
wiring damaged between optoswitch S17 and PQ1
converter board (see principle diagram Z1-10)
(9)
wiring damaged between PQ1 converter board and PC1
system control board (see principle diagram Z1-10).
W
f I
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c
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p
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P
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1
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m
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E
E
P
R
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M
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3
8
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a
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t -
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-
, X
, Y
R
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A
E
C
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g i f
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C
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C
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S
c e
The alarm is captured and stored as soon as it is detected.
Press the RESET pushbutton on the control panel to cancel the
alarm.
3.35.CONSOLE: LINK FAILURE
The host computer board PC1 has detected a protocol error in the
communication with the operator console control board PC7: as
soon the correct communication is restored, the PC1 advise the
PC7 of the problem occurred and the alarm Console link failure
appears on the display.
Possible causes:
(1)
host computer board PC1 damaged
(2)
operator console control board PC7 damaged
(3)
wiring between PC1(X28) and PC7(X4) damaged.
F-14
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-
, X
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R
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C
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To reset the alarm it is necessary to switch OFF and then ON the
system.
3.36.CONVERTER: LINK FAILURE
This alarm is generated when the host computer board PC1 is
unable to communicate with the converter board PQ1.
Possible causes:
(1)
400VDC not present on the converter board PQ1
(PQ1switched off - fuse F6 defective)
(2)
converter board PQ1 damaged
(3)
wiring between PQ1(X44) and PC1(X30) damaged.
f I
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c
o
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e v
p
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g
a r
m
s
T
u
s (
e
e
h t
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To reset the alarm, switch the system OFF and then ON again.
b
r e
o t
o
t n
e h
3.37.CONV.LINK FAIL 2
The converter board PQ1 has detected a protocol error in
communication with the host computer board PC1: as soon the
correct communication is restored, the PQ1 advises the PC1 of the
problem that has occurred and the alarm Conv.link fail 2 appears
on the display.
S
s y
e t
m
Possible cause:
(1)
wiring between the converter board PQ1(X44) and the
host computer board PC1(X30) damaged or bad connection.
(2)
host computer board PC1 damaged
f I
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f I
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C
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f n
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Press the RESET pushbutton on the control panel to cancel the
alarm.
(03.0)E
ORTHORALIX 9200
W
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DENTSPLY Gendex
Service Manual
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