Diagnostics
9B8949 – 10SEP02
77
Checking the COVER INTERLOCK SWITCHES
[1]
Enter mode 7. See
.
[2]
Install the COVER on the PROCESSOR.
[3]
Check that LED 7 on the DRIVE BOARD is illuminated.
[4]
If LED 7 is not illuminated, measure the resistance of the COVER INTERLOCK SWITCHES.
[5]
Remove the COVER and make the measurements again:
[6]
If the resistances are not correct, install new COVER INTERLOCK SWITCHES.
Checking the DRIVE MOTOR
[1]
Do
[2]
Install the COVER on the PROCESSOR.
[3]
Enter mode 7.
[4]
Press and hold the “RUN” BUTTON on the
CONTROL BOARD.
Note
Pressing and holding the “RUN” BUTTON operates the
DRIVE MOTOR and illuminates LED 1 on the DRIVE
BOARD.
[5]
Does LED 1 illuminate?
[6]
If LED 1 illuminates but the DRIVE MOTOR does not operate, check the voltage of the DRIVE MOTOR:
[7]
Is the voltage correct?
SWITCH
Position
Resistance
SW55
PIN 1 and PIN 2 at CNP10 on the DRIVE
BOARD
• Approximately 0 Ohms with the COVER
installed
• Open circuit without the COVER
SW54
PIN 1 and PIN 2 at CNP11 on the DRIVE
BOARD
• Approximately 0 Ohms with the COVER
installed
• Open circuit without the COVER
H164_0034AC
FIX.
DEV.
RUN
Rep.
Dev. Temperature
Low
Ready
High
Service
Yes
No
Continue with
a. Check:
• I/O BOARD
• I/O BOARD/DRIVE
BOARD CABLE
b. If necessary, install a new
part.
Position
Voltage
PIN 1 and PIN 2 on DRIVE BOARD CONNECTOR CN2
Approximately 100 V AC
Yes
No
a. Check the DRIVE MOTOR.
b. If necessary, install a new DRIVE MOTOR.
Continue with
