BelFox 47-21-i Manual Del Usuario página 91

A
The inputs, which are
B operated with poten-
C tial-free buttons, flash
D when they are active.
STP
The stop input flashes
when the terminals 27
& 28 are not intercon-
nected
(Emergency stop
active)
LS The input of the light
barrier flashes if the
terminals 29 & 30 are
inter-connected. (Light
barrier active)
It flashes continuously
Though an external button
has been pressed, they do
not flash no more
They flash continuously
Though the emergency
stop switch has been acti-
vated, the sign does not
flash.
Though the emergency
stop switch has not been
activated,
It flashes continuously
Though the light beam has
been interrupted, they do
not flash.
Though the light beam has
not been interrupted, they
flash
continuously.
43
Repair the wire / replace it
Ö
► The wire of the Reed contact is damaged
Repair the wire or replace the Reed
Ö
contact
► The Reed contact is not connected
Connect the Reed contact
Ö
► The Reed contact is defective
Replace it
Ö
► The circuit of the button is discontinuous
Repair the wire / replace it
Ö
► The button is defective
Replace the button
Ö
► The wire is damaged
Repair the wire / replace it
Ö
► The button is defective
Replace the button
Ö
► A commutator has been set up instead of
a push-button
Set up a push-button
Ö
► The wire is damaged
Repair the wire / replace it
Ö
►Several emergency-stop switches have
been connected in parallel
Connect them in series
Ö
► The wire of the emergency stop switch is
defective
Repair the wire / replace it
Ö
► the opening contact and the closing con-
tact of the emergency stop switch inter-
changed
Use a rest contact
Ö
► The wire is pulled
Repair the wire / replace it
Ö
► Several light barriers have been connected
in parallel
Connect them in series
Ö
► The wire of the safety contact edge is de-
fective
Repair the wire / replace it
Ö
► The opening contact and the closing con-