PSEN op2H-A series
OPERATING MANUAL
9 REGULAR CHECKS AND MAINTENANCE
9.1 REGULAR CHECKS
Perform the following checks once a day
•
The light curtain remains in a safe state (OSSDs off).
−
The beams are interrupted across the whole area of the protected field using a test object
(test rod) (TP-30) with an appropriate resolution, in accordance with the following diagram.
•
Is the light curtain aligned correctly?
−
Press gently on the side of the product in both directions. The red LED must not light during
this process.
•
Activate the TEST function on the TX side.
−
The OSSD outputs are opened (red LED, OSSD on the RX side, ON and stop of the
controlled machine).
•
The response time to the machine STOP, including the response time of the light curtain and
machine, are within the limit values defined for calculating the safety distance (see Chapter 2.2).
•
The safety distance between the danger zones and the light curtain must comply with the
details specified in Chapter 2.2.
•
Access and exposure of persons between the light curtain and hazardous machine components
must be prevented.
•
It is not possible to access the machine’s danger zones from an unprotected side.
•
In order to guarantee that the light curtain remains in NORMAL FUNCTION MODE for at least
10-15 minutes and, after positioning the specific test object in the protected field, stays in a
SAFE STATE for the same time span, there must be no interference from external light sources.
•
Check that all additional functions comply by activating them several times under different
operating conditions.
9.2 MAINTENANCE
The safety light curtain in the PSEN op2H-A-series does not require any special
maintenance.
The front optical protective surfaces should be cleaned regularly to prevent any reduction in
the operating range.
Use moist cotton cloths. Do not apply excessive pressure or the surfaces may become
tarnished.
The following materials should
not
be used to clean plastic surfaces or paintwork on the light
curtain:
−
Alcohol and solvents;
−
Woollen cloths or synthetic materials;
−
Paper or other abrasive materials.
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