ES 50 – ES 80
34
12.3 Fault finding continued
Symptom Possible cause Possible solution
Delay before opening. Warning is active. Operating mode switch 1+2 off.
Delay before closing. Warning is active. Operating mode switch 3 off.
The barrier does the following when it hits an obstacle ...
...switches off. Reversing is not activated. Operating mode switch 5 off.
...tries to carry on closing. Torque setting is wrong. Adjust it.
The boom isn’t vertical when the barrier is open ...
The green LED SEA is out.
Limit switch ‘open’ maladjusted,
but still switches.
Re-adjust it and the
corresponding mechanical
stopper.
The green LED SEA is lit. The
red diagnostic LED flashes
twice then a break.
1. Faulty limit switch ‘open’. Replace it.
2. The limit switch ‘open‘ is
maladjusted and doesn’t
switch.
Re-adjust it and the
corresponding mechanical
stopper.
The boom isn’t horizontal when the barrier is closed...
The green LED SEZ is out.
Limit switch ’closed‘
maladjusted, but still switches.
Re-adjust it and the
corresponding mechanical
stopper.
The green LED SEZ is lit. The
red diagnostic LED flashes
three times – then a break.
1. Faulty limit switch ’closed‘. Replace the limit switch.
2. The limit switch ’closed‘ is
maladjusted and doesn’t
switch.
Re-adjust the limit switch and
the corresponding mechanical
stopper.
Table 15