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FLPS Multibarrier · Operating Instructions · 8021769/V1-0/2018-03 · © SICK Engineering GmbH
Troubleshooting
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5.1
Replacing the fuse
The Multibarrier is maintenance-free. When the device is operated with too high voltage or
connected to the wrong polarity, the interchangeable back-up fuse will be triggered and pro-
tect the internal circuit.
The fuse can be replaced without opening the enlcosure.
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In case of a defective fuse, the red LED “Fuse fail” lights permanently.
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Disconnect the FLPS Multibarrier from the supply voltage before replacing.
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If necessary, remove the wiring of the barrier.
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Remove the barrier from the 35 mm mounting rail.
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Replace the fuse.
5.2
Malfunction
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Replace the device when the FLPS Multibarrier shows a malfunction which is not
caused by a defective fusible cutout.
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Do not open or change the device.
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Do not repair the device by yourself, but replace it by an equivalent device.
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Repairs may only be performed by the manufacturer. The manufacturer is not liable for
damages due to violation.
5.3
Error rates
100.000 operating hours are stated as service life of the FLPS Multibarrier.
IMPORTANT:
Before the fuse is replaced, clarification of the fail is recommended.
WARNING:
Danger due to wrong spare parts
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Fuses may only be replaced with an original spare part; SICK order No.
2085302 (Littelfuse Type 0273.200 (200 mA, 125 V).
WARNING:
Risk of explosion
The FLPS Multibarrier is an [Ex ia] associated equipment that provides intinsi-
cally safe wiring with intinsicallay safe devices installed in Zone 1 or Zone 0.
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Substitution of components may impair Intinsic Safety.