36
TROUBLESHOOTING
The indications provided on the display of the Receiver make it possible to trace the cause of a
system malfunction. As indicated in the “INDICATIONS” chapter of this
manual, in the case of a
fault, the system is blocked and a numeric code identifying the type of fault is shown on the
display of the Receiver. (See the table below). As soon as the error condition is removed, the
code is cleared from the display and the system restarts automatically.
EMITTER
LEDs
(Flashing)
DIAGNOSIS
REMEDY
Red
Internal fault
Send the equipment for repair
to SCHMERSAL.
Red + Yellow
Internal fault
Send the equipment for repair
to SCHMERSAL.
Red + Green
Internal fault
Send the equipment for repair
to SCHMERSAL.
Red + Orange
Range selection error
Correct the range selection on the Emitter Unit.
RECEIVER
CODE
(Flashing)
DIAGNOSIS
REMEDY
F
Displayed alternatively to the error code
C
Incorrect configuration of the system (the
flashing LED together with the C indicates the
incorrect type of configuration) (ref.
Table 4
)
Check the connections according to configuration
selected.
*
L
Muting light not present or fault
Check that the MUTING lamp is present and
working efficiently.
U
Incorrect "SYSTEM STATUS" or overload
signal connection
Check the connection of PIN 4.
2
OSSD outputs incorrectly connected to
+24VDC
Carefully check the connection of PIN 2 and 3
(OSSD) on the connector.
Warning
: the load must be positioned between
the MUTING function (OSSD) and 0VDC.
E
External contact enabling/disabling signal
missing or contactors feedback missing
Check the connections of PIN 11 and PIN 18.
H
Incorrect initial OVERRIDE configuration
Check the connections of PIN 16 and 17.
CONFIGURATION ERRORS
*
II
y
Unstable Muting sensors signals
y
Barrier configured for 2 sensors but found 3
or 4 sensors (the correspondent LED
flashes)
y
Check positioning of the muting sensors.
y
Verify the number of the sensors connected and
the selected configuration.
3
Internal error
Send the equipment for repair to SCHMERSAL.
4
Internal error
Send the equipment for repair to SCHMERSAL.
5
Internal error on the OSSD outputs
(or incorrect connection of these)
Carefully check the connection of PIN 2 and 3
(OSSD) on the connector.
These PINs could be connected directly to
+24VDC or 0VDC.
Otherwise, send the equipment for repair to
SCHMERSAL.
FAULTS
A
Internal error
Send the equipment for repair to SCHMERSAL.
* Specifications applicable only to models with Muting function
Summary of Contents for SLC 415
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