SLCT* and SLCT*/35 safety light curtains
Maintenance and Repair
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6
Maintenance and Repair
6.1
Maintenance
The safety light curtain is maintenance free.
The prescribed periodic checks must be carried out and documented. The
checks to determine whether the components are fitted securely and whether the
optical surfaces are clean are important.
See chapter 6.2
6.2
Periodic Checks
The test intervals and scope of the periodic checks are determined according to
requirements.
Record the results of periodic check in accordance with the applicable
regulations.
Daily Check
1. Secure the machine or plant against unintentional startup before and during
the checks.
2. Make sure the protection field is clear.
3. Activate the startup enable.
4. Interrupt the protection field inside the protection field range using the test
rod. A test rod with a suitable obstacle size must be used.
5. Check the entire protection field at several points parallel to the transmitter or
receiver, in particular in front of the transmitter and receiver and in the center
between the transmitter and receiver, to find any detection gaps caused by
reflective surfaces.
The OSSD outputs switch off.
6. Slowly move the test rod through the protection field while watching the
displays on the receiver:
If the startup/restart interlock is
activated
: the yellow startup readiness
display does
not
light up.
If the startup/restart interlock is
deactivated
: the green status indicator of the
OSSD display does
not
light up.
Note!
Use a soft, lint-free cloth to clean the surfaces and to cover the lenses. Only use
alcohol or mineral spirits as cleaning fluids. Avoid the use of any other cleaning
agents, as they may damage or impair the lens surfaces.
SLCT* and SLCT*/35 safety light curtains