20
Assembly and Operating Instructions
Safety edge
The.following.safety.edge.systems.can.be.connected.to.the.
S20 MLS
door.control
unit:
•. Pneumatic.safety.edge.(DW).
•. Electric.safety.edge.(EL).
•. Optical.safety.device.(OSE).
The.required.sensor.is.integrated.into.the.control.unit.(self-monitoring.sensor.as.per.
EN.12453).
The. pneumatic. safety. edge. or. the. electric. safety. edge. is. connected. to. terminals.
8
..
and.
9
. (EL/DW). and. monitored. via. a. terminating. resistor.. This. resistor. must. be. con-
nected.in.the.pressure.switch.contact.or.at.the.end.of.the.electric.safety.edge.as.per.
the.
S20 MLS
connecting.diagram.
Check.the.terminating.resistance.of.factory-assembled.electric.safety.edges..Safety.
edges.with.a.1.2.k
Ω
.or.8.2.k
Ω
.terminating.resistance.may.be.used.
Connect.the.OSE.optoelectronic.safety.edge.made.by.Vitector.(Fraba).to.terminals.
6
,.
7
.and.
8
.(OSE).directly.without.a.terminating.resistor.(
6
.–.white.wire,.
7
.–.green.wire,.
8
.–.brown.wire).
To.adapt.the.control.unit.to.the.respective.safety.edge,.set.DIP.switches.1,.2.and.3..
according.to.the.following.table.
Caution!
When using a pneumatic safety edge, the DIP switch 2 must always
be set to the ON position, as the functioning of the pneumatic safety
edge cannot otherwise be properly monitored. When delivered, safe-
ty devices may be bridged. Before initial use, always check that no
non-permissible bridging exists.
If. the. safety. edge. responds. during. downward. movement,. the. door. is. stopped. in-
stantly.by.the.
S20 MLS
control.unit..After.an.internal.time.of.0.3.s.has.elapsed,.the..
S20 MLS
.opens.the.door.again.
Type of safety edge
DIP 1
DIP 2
DIP 3
Pneumatic.safety.edge.1.2.kOhm
OFF
ON
ON
Pneumatic.safety.edge.8.2.kOhm
OFF
ON
OFF
Electric.safety.edge.1.2.kOhm
OFF
OFF
ON
Electric.safety.edge.8.2.kOhm
OFF
OFF
OFF
Optoelectronic.safety.edge.OSE
ON
OFF
OFF
