Appendix; Troubleshooting - Canon PD-704 User Manual

6. Appendix

6-1. Troubleshooting

Symptom Check
The status Is the power turned on?
indicator does not
Is the power cable correctly
turn on.
connected?
The error indicator
－
is lit on.
The error indicator
－
is blinking.
The length Is the main unit mounted in the correct
measurement direction to the moving direction of the
value seems target measurement object?
wrong.
Is the measurement distance
adjustment tool inserted?
Is the target measurement object
placed within the measurement
distance of the main unit?
Is the main unit mounted with an angle
to the target measurement object?
Is the width of the target measurement
object small (20 mm or less) and out of
the light receiving area?
Is the optical window dirty?
Is the optical window scratched or
broken?
Is there strong ambient light?
Is the main unit or target measurement
object vibrating?
Has condensation occurred?
Is the ambient temperature out of
specifications?
Is there a hole on the target
measurement object?
Light beam is not Are the USB cable and I/O cable
emitted. correctly connected?
Is the length measurement start trigger
correctly input?
Pulse is not Is the wiring correct?
correctly output.
Is the response frequency of the
counter exceeded?
Non-Contact Displacement Sensor User's Manual Rev 1.00
Action
Turn on the power.
Connect the power cable correctly.
Use the Non-Contact Displacement Sensor
software to check the content of the error, and
take action accordingly.
A warning has occurred. Use the Non-Contact
Displacement Sensor software to check the
content of the warning, and take action
accordingly.
Mount the main unit in the correct direction to the
moving direction of the target measurement
object? (See 1-4-2)
Length cannot be measured if the measurement
distance adjustment tool is inserted. After
installation and adjustment are complete, remove
the measurement distance adjustment tool.
Place the target measurement object within the
measurement distance of the main unit.
Mount the main unit horizontally to the target
measurement object.
(An approximate guide is ±2°.) Alternatively, follow
2-3. Calibration to correct the length measurement
value.
Place the target measurement object within the
light receiving area.
* The measurement distance adjustment tool
makes it easier to place the object.
Remove dirt.
The optical window needs to be replaced. We will
fix it. Please contact our customer support.
Block ambient light.
- If the main unit vibrates independently of the
target measurement object, it detects a motion
other than that of the target measurement object,
and the error becomes large.
- If the target measurement object vibrates or
meanders, only the length measurement direction
is detected from the tracks of the target
measurement object, and the error becomes large.
If the target measurement object vibrates beyond
the tolerance of the measurement distance, the
error becomes large.
The equipment cannot be used stably if
condensation occurs.
Use the equipment within the specified
temperature range.
If there is a hole larger than the light receiving
area on the target measurement object, the length
cannot be measured due to the hole. (A warning is
output.)
- Install the equipment again so that the range to
be measured and the hole do not match.
Connect the USB cable and I/O cable correctly.
Input the length measurement start trigger
correctly.
See 2-2-2. Setting the trigger.
Check the wiring and connect the cables correctly.
If the target measurement object moves fast
(4,000 mm/s or faster) and the pulse resolution is
22