ES 50 – ES 80
33
12.2 The open barrier doesn’t react to signals to close
Symptom Possible cause Possible solution
The yellow power LED
is out.
No mains supply.
Check the mains lead and the
fuses.
The red diagnostic LED
flashes non-stop.
Programming is started. Carry it out to the end.
The green LED LS is
lit.
1. Loop detector is activated.
Check the detector in socket
B3.
2. The red jumper is removed from the
terminals 6 and 10 in socket B3, but
the loop detector hasn’t been
inserted.
Plug the detector into the
socket B3 or replace the red
jumper.
3. The photo-cell is activated.
Check it (X1/9 top and X1/9
bottom).
The green LED LS is lit
when the photo-cell is
free, and not lit when
an obstacle is present
The photo-cell is connected as normally
open.
Connect the photo-cell as
normally closed.
The green LED BTA is
lit.
There is a permanent signal to open.
1. Check the ’open‘ button
(X1/2 bottom and X1/6 top)
2. Check the loop detector in
socket B2
The green LED SEZ is
out and the red
diagnostic LED flashes
4 times – then a break.
1. Faulty limit switch ’closed‘. Replace the limit switch.
2. Wiring fault.
Check the wiring and plug V6 in
the control box.
The green LED BTZ2 is
lit.
There is a permanent signal to the
terminals BTZ2.
Check the button (X1/7 bottom
and X1/2 bottom/top).
Table 14
When the controller gives an error code through the red Diag.-LED see the chapter ‘Error code’.
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