SB series
User’s manual
29
10 LED DIAGNOSTICS
10.1 WHAT
THE
LEDS
MEAN
The operator is able to recognise the operating status of the barrier by
means of five leds located on the receiver and two leds on the
transmitter.
The status of the leds on the receiver indicates the following:
(looking at the front of the receiver from right to left)
x
UP. ALIGN (Yellow):
when lit, this indicates the alignment of the optical unit located
towards the top section of the barrier. (When the barrier is in
alignment mode; in normal working conditions it is not lit and will only
light up after the barrier has intervened with free rays in manual
reset mode)
x
BREAK (Red):
when lit, this indicates that the barrier has intercepted an object; the
outputs are open in this condition.
x
GUARD (Green):
when lit, this indicates that there are no objects placed between the
barriers.
x
LO. ALIGN (Yellow):
when lit, this indicates alignment of the optical unit positioned
towards the bottom of the barrier (connector side) with the barrier in
alignment mode. If this led lights up in normal working conditions,
this indicates that dust is present on the front of the barrier. If it
flashes, there is a short circuit on the outputs.
x
POWER (Green):
when lit, this indicates that the receiver is powered.
The leds placed on the transmitter indicate the following:
x
POWER (Green):
when lit, this indicates that the projector is powered
x
STATUS OK (Yellow):
when lit but not flashing, this indicates that the projector is working;
if it flashes or if it is off, this indicates a projector fault.
SB series
User’s manual
30
10.2 ERRORS SIGNALLED BY LED
If critical errors are detected during hw/sw tests, the leds present indicate
the fault found. The errors signalled are as follows:
RECEIVER
x
Only the green power led is lit: system power supply is too low.
x
POWER(green) led lit and LO.ALIGN (yellow) led flashing: optical system
fault.
x
POWER(green) led lit and UP. and LO.ALIGN (yellow) leds flashing:
micro controller fault.
x
POWER (green) led, UP. and LO.ALIGN (yellow) leds and BREAK (red)
led flashing: output system fault.
x
POWER (green) led, UP. and LO. ALIGN (yellow) leds and GUARD
(green) led flashing: muting lamp connection fault.
x
POWER (green) led, UP. and LO.ALIGN (yellow) leds, GUARD (green)
led BREAK (red) led flashing: relay module connection fault.
TRANSMITTER
x
Only the POWER(green) led is lit: system power supply is too low.
x
POWER(green) led lit and STATUS OK (yellow) led flashing: optical
system fault or micro controller fault.
