Maintenance
SF4C Safety light curtain
98
5.1 Daily Inspection List
If there is a problem with the wiring or when you need to evaluate the system before you add
further equipment, place two or more sets of emitters and receivers facing each other without
series or parallel connection between them. Perform an operation test (see page 56).
!
DANGER!
Improper sensor placement could cause the sensor to malfunction,
which may result in serious injury or death.
If the SF4C is used in multiple sets, arrange them so that mutual
interference is avoided. If mutual interference occurs, it can result
in serious injury or death.
Check column
Inspection item
□
Dangerous parts of the machine cannot be reached without passing through the sensing
area of SF4C.
□
Some part of the operator's body remains in the sensing area when the operator is
working 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 the wiring.
□
The corresponding connectors have been connected securely.
□
There is no dirt or scratches on the 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 there is no object present in the sensing area. The control output
(OSSD 1, OSSD 2) is in ON status.
At this time, the effect of external noise can be inspected. In case external noise affects
the operation, remove its cause and repeat the inspection.
□
The test rod (Ø25mm) for SF4C moving 1.600mm/s can be detected at three positions:
•
Directly in front of the emitter (A),
•
Midway between the emitter and the receiver (B)
•
Directly in front of the receiver (C).
The OSSD indicator (red) of the receiver and the operation indicator (red) of the emitter
continue to light up as long as the test rod is present in the sensing area from (A) to (C).
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CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
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