Regular Checks And Maintenance; Maintenance - Pilz PSEN op2/4 Instrucciones De Uso

PSEN op 2/4 Series

8. REGULAR CHECKS AND MAINTENANCE

Qualified personnel must carry out the following checks regularly.
Ensure that:
• Therod is carried out, and remains in the BREAK condition as the
rod is passed across the whole protected field.
• The PSEN safety device switches to an OFF state when the
TEST/START button is operated (red LED BREAK is lit – signal at
the OSSD outputs switches from High to Low - monitored machine
switches to a safe condition).
• The reaction time at a machine stop, incl. ESPE reaction time and
machine overrun time, is within the limits defined through the
calculation of the safety distance (see Ch. 2 "Installation").
• The minimum safety distance between the danger zone and the
protected field is in accordance with the details stated in Ch. 2
"Installation".
• Nobody can access and remain in the danger zone between the
PSEN safety device and the hazardous machine parts.
• The danger zone cannot be accessed from any unprotected area.
• There is no visible damage to the PSEN safety device and/or the
external electrical connections.
The interval between such checks depends on the respective
application and on the conditions under which the light curtain is
operated.
8.1.

Maintenance

Safety light curtains in the PSEN series require no particular
maintenance, except for cleaning the optical covers. Moist cotton
cloths should be used for cleaning.
We recommend that you do not use:
- Alcohol or solvents,
- Cloths made of wool or synthetic material.
Operating Manual
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