FLSC
GB
Betriebsanleitung
•
73734 Esslingen - Fiessler Elektronik - Kastellstr.9
•
Doku Nr. 625 R.H.
177
7. Diagnosis
7.1 Diagnostic elements
Three LEDs displaying the operation status of the FLSC are located on the top of the FLSC housing.
The green and red LEDs are allocated to the safety output.
The yellow LED signals – depending on the setting of the FLSC – an object in the warning field and/or
dirt contamination of the front screen. In conjunction with the red LED, it also indicates whether the
system is waiting for acknowledgement by the user.
Should the device fail the self-test (system error), this is also displayed by the yellow LED.
Diagnosis with FLSC LEDs:
Status green
yellow
red
Protective field clear
Object in protective field
Object in warning field
Waiting for restart
1Hz
Dirt warning
*
1Hz
Dirt contamination *
Self-test failed **
4Hz
*
Dirt contamination of the FLSC front screen:
see chapter 7.2 Maintenance!
** Self-test failed: see chapter 7.3 Service!
The LEDs give the first diagnosis of the system status. Authorized personnel have, with the help of the
user software supplied with the unit, access to an extensive diagnostic system (see chapter User
Software in the FLSC technical description).
7.2 Maintenance
When set up appropriately by authorized personnel using the user software, the FLSC reports minor
dirt contamination of the front screen with the dirt warning (when the device is functioning fully) as well
as severe dirt contamination of the front screen (and shuts down the outputs at the same time).
Clean the front screen if the device's dirt warning is activated. This is indicated by the slow flashing of
the yellow LED while the green LED shines constantly (protective field clear). The front screen is an
optical component and must not be scratched. Therefore clean it only with a soft cloth and plastic
cleaner. (Recommended: Antistatic plastic cleaner, 1 litre,
order no. 5 600 987)
If the screen is scratched it must be replaced. The order number of the replacement front screen
(including seals and screws) can be found in the chapter Accessories in the FLSC technical
description. As the FLSC must be readjusted after replacement of the front screen, please advise your
safety officer.
Regularly check the tightness of all mounting screws on the FLSC and the fixing brackets. Also check
all screws on the interface plugs.
Regularly check that the device is functioning correctly by reaching into the protective field along its
edges, corresponding to the appropriate application regulations.
