18
Assembly and Operating Instructions
Open.the.cover.of.the.
S20 MLS
.by.undoing.the.four.cover.screws.and.re-insert.the.
cover.offset.upwardly.
The.direction.of.drive.rotation.depends.on.how.the.three.mains.phases.are.connected.
to.the.control.unit.and.has.to.be.checked.first..To.do.this,.proceed.as.follows:
•. Move. the. door. into. the. semi-opened. position. using. the. emergency. release..
function.
•. Insert.the.CEE.plug.into.the.CEE.socket.or.turn.on.the.main.switch.
•. Check.that.the.control.unit.is.in.the.setting.mode.
•. Using.the.
UP
.and.
DOWN
buttons,.check.whether.the.direction.of.door.movement.
corresponds.to.the.buttons.pressed.
If.the.direction.of.movement.does.
not
.correspond.to.the.button.commands,.proceed.
as.follows:
•. Disconnect.the.
S20 MLS
.control.unit.from.the.mains..
•. Change. over. two. phases. at. the. mains. connection. terminals,. e.g.. the. cables..
at.terminals.L1.and.L3.(refer.to.complete.connecting.diagram).
•. Check.the.direction.of.movement.again.
Checking the direction of movement
Connection and function of external control sensors and
safety devices
Note
Before connecting external control sensors, you should first check
the direction of door movement and set the end positions of the door
drive.
EMERGENCY STOP button
An.EMERGENCY.STOP.button.can.be.connected.to.terminals.
NA/ES
..
The. drive. is. switched. off. by. pressing. the. EMERGENCY. STOP. button.. The. door. is.
brought.to.a.sustained.halt..Door.movement.is.only.possible.again.after.releasing.the.
EMERGENCY.STOP.button.
External triple push button
An.external.triple.push.button.can.be.connected.at.terminals.
2, 3,
.
4
.and.
5
.(STOP.
↑↓
)..
This.is.identical.in.function.to.the.triple.push.button.on.the.front.of.the.control.unit..The.
jumper.between.terminals.
2
.and.
4
.must.be.removed.in.order.to.connect.an.external.
triple.push.button..
Wicket door switch / Spring break safety device
A.wicket.door.switch.and/or.a.spring.break.safety.device.can.also.be.connected.to.
terminals.
2
.and.
4
.in.series.to.the.
STOP
.button,.if.required..The.jumper.between.termi-
nals.
2
.and.
4
.must.be.removed.in.order.to.connect.a.wicket.door.switch.and/or.a.spring.
break.safety.device.
