96 MCS100FT · Operating Instructions · 8011893 V2-1 · © SICK AG
Clearing Malfunctions
Subject to change without notice
8.4 Malfunctions of the I/O modules
8.5 Checking the operating state of the interferometer
● All 3 LEDs on the power plug at the bottom of the interferometer must be on.
If not:
Is the fuse in the MCS100FT switched on? (
p. 94, §8.1)
Is the mains switch on the bottom of the interferometer switched on?
Check firm seating of the power plug on the bottom of the interferometer.
● Both LEDs on the socket of the Ethernet cable must light/flash.
If not:
Check firm seating of the Ethernet cable.
8.6 FID does not ignite/burn
Ignition of FID:
p. 79, §5.8.8.1
Malfunction Note
1
1
If fault persists: Contact SICK Customer Service.
The red LED on the I/O modules goes on Check firm seating of the green connectors on the rear of
the SCU.
The green “running light” is interrupted Please contact SICK Customer Service.
More information on the I/O modules “Modular I/O System” Operating
Instructions.
Malfunction Possible cause Note
FID does not ignite Fuel gas supply not available or
pressure too low
Ensure correct fuel gas supply.
Air in the fuel gas line Ignite repeatedly until the flame is
burning.
If the FID still does not ignite:
Contact SICK Customer Service
FID goes out “repeatedly” Fuel gas contaminated or pres-
sure varies
Ensure correct fuel gas supply
(clean tubes).
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