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5.3 Troubleshooting Procedures
When the FF-SYA Series safety light curtains are working properly and the sensing field is not
interrupted, at least one of the emitter yellow LEDs R1, R2 and R3 is illuminated, the receiver
green LED «ON» is illuminated, and all other LEDs are NOT illuminated. If this condition is not
met, refer to the following troubleshooting chart, flow diagram and corresponding repair
procedures.
Troubleshooting Chart (see next figure for indicator information)
Symptom
Probable Cause
Corrective Action
All light emitting diode
(LED) indicators are NOT
illuminated
No power.
Ensure external fuse is not blown.
Ensure supply voltage and polarity
are correct (see Specifications).
Ensure electrical power connections
are secure and correct. (see
Electrical Connections chapter).
The emitter red « test »
indicator and the receiver
red « OFF » operation
indicator are both
illuminated
Test input is open.
Ensure the external circuit wiring
connection between pins 4 and 5 on
the emitter connector is secure (see
Electrical Connections chapter,
Mutual Interference or Cross-talk).
The emitter red « alarm »
indicator is flickering and
the receiver red « OFF »
operation indicator is
illuminated
Emitter is having a
failure
Replace the emitter unit by a new
one of the same resolution and
protection height
The receiver red cross-talk
indicator is « ON » and the
receiver red « OFF »
operation indicator is
illuminated
Receiver is
receiving a signal
from a second
emitter
Adjust the emission power of the
second emitter (see chapter
Installation)
The receiver yellow signal
strength indicator is
flickering and the green
« ON » operation indicator
is illuminated
Emitter and/or
receiver units need
to be cleaned
Emitter and/or
receiver units need
to be aligned
Emission power is
too low
Clean emitter lens, receiver lens
and mirrors (see Emitter and
Receiver Cleaning).
Align emitter, receiver and mirrors
Adjust the emission power of the
emitter (see Installation chapter,
Mutual Interference or Cross-talk)
The receiver yellow signal
strength indicator is
flickering and the red
« OFF » operation
indicator is illuminated
Emitter and/or
receiver units need
to be cleaned
Emitter and/or
receiver units need
to be aligned
Emission power is
too low
Clean emitter lens, receiver lens
and mirrors (see Emitter and
Receiver Cleaning).
Align emitter, receiver and mirrors
Adjust the emission power of the
emitter (see Installation chapter,
Mutual Interference or Cross-talk)
Содержание SYA14 Series
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