Diagnostics
9B8949 – 10SEP02
73
Checking the DRYER BLOWER
[1]
Enter mode 3. See
[2]
Observe LED 10 on the DRIVE BOARD.
[3]
Press and hold the “RUN” BUTTON on the
CONTROL BOARD.
Note
• The fast speed circuit for the DRYER BLOWER will
actuate.
• LED 10 on the DRIVE BOARD will illuminate
continually when the “RUN” BUTTON is held.
[4]
Release the “RUN” BUTTON.
Note
• The slow speed circuit for the DRYER BLOWER
will actuate continually when the “RUN” BUTTON is
released.
• LED 10 will illuminate with less brightness.
[5]
If LED 10 does not illuminate, check for control signals from the I/O BOARD:
[6]
Are the control signals correct?
[7]
If LED 10 illuminates and the DRYER BLOWER does not operate, check the voltage of the DRYER BLOWER:
[8]
Are the voltages correct?
H164_0034AC
FIX.
DEV.
RUN
Rep.
Dev. Temperature
Low
Ready
High
Service
Signal
Position on DRIVE BOARD
Voltage
DRYER ON
P1 (GND) to PIN 5 on U1
0 - 1 V DC
DRYER BLOWER HIGH
P1 (GND) to PIN 11 on U1
0 - 1 V DC
DRYER BLOWER LOW
P1 (GND) to PIN 11 on U1
4 - 5 V DC
Yes
No
Continue with
a. Check:
• I/O BOARD
• I/O BOARD/DRIVE BOARD
b. If necessary, install a new part.
Signal
Position on DRIVE BOARD
Voltage
DRYER BLOWER HIGH
P1 (GND) to P3
23 - 24 V DC
DRYER BLOWER LOW
P1 (GND) to P3
13 - 15 V DC
Yes
No
Install a new DRYER BLOWER. Install a new DRIVE BOARD.
Содержание X-Omat 1000
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