B-1
Valco Cincinnati, Inc.
APPENDIX B - DIAGNOSTICS
APPENDIX B - DIAGNOSTICS
APPENDIX B - DIAGNOSTICS
APPENDIX B - DIAGNOSTICS
APPENDIX B - DIAGNOSTICS
The parent machine must be operating in order to verify the operation of the
encoder. (It is not necessary to be gluing the product.) All gun-selector
switches must be turned off.
Encoder diagnostics should be done
only after internal diagnostics have
proven that the control’s main board is
operating properly.
To verify operation of the encoder, follow these steps:
1.
Ensure that the “ENC” LEDs on the control’s main board or front
panel are illuminated.
2.
If these LEDs are not illuminated, complete either step 3 or step
4:
3.
On a shaft-mounted encoder assembly, check for the following:
Worn timing belt or gears*
Incorrect belt tension*
Damaged encoder cable
Loose cable connections
*
These items may cause diagnostic
LEDs to falsely indicate proper encoder
operation.
4.
On a wheel-mounted encoder assembly, check for the following:
Worn rubber on the wheel*
Incorrect tension between the wheel and the drive
belt*
Damaged encoder cable
Loose cable connections
*
These items may cause diagnostic
LEDs to falsely indicate proper encoder
operation.
5. Replace the encoder if the diagnostics listed above do not solve
the problem.
Encoder
Diagnostics
