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BL3x-MT-EN-08
page
10/59
2.5.2. In case of breakdown
Liquid crystal display is off
•
Check the general power supply.
•
Check the voltage on the circuit breaker (4:1), and
check if this late is on.
•
Check the connection of the control wires referring
to the electrical diagram, as well as their tightening.
•
Check the state of the fuses (1, p14) on the
electrical control board.
•
Check that the green LEDs are lit on the logic
control board (6, p14).
- If not, check the general fuses (1, p14).
- If so, check that the logic board is not in
programming mode (cable RJ45, plugged in
socket 5, p14).
Liquid crystal display is on
•
Check that the red LEDs (other than the analogue
output ones) on the logic control board are on (6,
p14).
- If not, cut the supply voltage and remove the
control terminal blocks (6, p14) (on the AS1320
and AS1321, if present). Turn the power back
on and then check whether the red LEDs are
on. If that is the case, there is a short circuit in
one of the control terminal blocks (6, p14). In
order to reactivate the outputs, the logic board
has to be turned on again.
- If so, refer to the displayed breakdowns
(“PRDSTD – BL_xxx“ menu
Æ
“Log”/”Close
Status”/”Open Status”).
The obstacle does not
move
Check the defects on the
frequency inverter
Refer to AS1320 control board manual.
The obstacle stops
during movement
OP, CL and STOP
commands have no effect.
Opening and/or closing limit switch is defective or
badly connected.
Note:
If the trouble persists after you carry out the checks above, call your local Automatic Systems
agent.