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10. Maintenance
<Reference>
When any errors are found, refer to "11. Troubleshooting" and report the symptoms to the mainte-
nance in charge.
If the rectification me hod is not clear, please contact our office.
Please make a copy of this checklist, check each inspec ion item in the respective square, and file the
list for record.
● Daily inspection
Be sure to inspect the following items prior to operation and confirm that there is no error.
Operating this device without inspection or in an error condition can result in death or seri-
ous injury.
Check list (Daily inspection)
Check column
Dangerous parts of the machine cannot be reached without passing hrough the sensing area of
□
this device.
□
Some part of operator's body remains in the sensing area when operation is done with dangerous parts.
□
The calculated safety distance has been maintained or exceeded during installation.
□
There is no damage to the safety guard or protective structure.
□
There is no defect, fold, or damage in he wiring.
□
The corresponding connectors have been connected securely.
□
No dirt or scratches exist on he light emitting surface.
□
The test rod is not deformed or defective.
The operation indicator (green) of the emitter and the OSSD indicator (green) of the receiver light
up when no object is present in the sensing area. The control output (OSSD 1 / 2) is in ON status.
□
At this time, he effect of external noise can be inspected. In case external noise affects he opera-
tion, remove its cause and reinspect.
The test rod (ø25mm) can be detected less than 1,600mm/sec. at hree posi ions, directly in front
of the emitter (A), midway between the emitter and the receiver (B), and direc ly in front of the re-
ceiver (C).
□
With the machine in the operating condition, the dangerous parts operate normally when no object
□
is present in the sensing area.
With the machine in the operating condition, the dangerous parts stop immediately when the test
□
rod is inserted into the sensing area at any of the three positions, directly in front of the emitter (A),
midway between the emitter and the receiver (B), and directly in front of the receiver (C).
□
The dangerous parts remain stopped as long as the test rod is present in the sensing area.
□
The dangerous parts stop immediately when the power supply of this device is turned OFF.
The control output (OSSD 1 / 2) must turn OFF when the test input / reset input wire (pink) is open
□
(for manual reset: connected to 0V or +V). At this time, he effect of external noise can be inspect-
ed. In case external noise affects the operation, remove its cause and reinspect.
Be sure to check the opera ion of the muting function before its use. Furthermore, check the state
□
of the muting lamp (cleanliness or brightness etc )
46
WARNING
Inspection item
Test rod
(A)
(B)
(C)
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