LS-20 Instruction Manual
00629-53-000
Page 7 of 18
Issue 12 19 January 2021
Lasermet produce a range of Distribution Boxes and Remote Switches fitted with sockets specially
for use with LS-20, which provide convenient screw terminals to make installation neat and simple.
Units are available in both free-standing and fixed installation versions and full wiring instructions
are supplied with each one.
Lasermet also supply extender cables to lengthen the shutter lead.
Connection to Lasermet Interlock Control Systems
Diagram 1 below shows the usual basic control wiring between a Lasermet ICS-6 Interlock Control
System and LS-20.
Interlock
Output
+24V
+24V
+12V
+12V
0V
0V
DC
POWER
OUT
Interlock System ICS-5
Control 24V
Monitor 24V
0V
LS-20 Shutter
Diagram 1: Basic Control Wiring between ICS-6 and LS-20
In this arrangement the shutter buttons are operative allowing the shutter to be opened and closed
when the ICS-6 is armed.
If it is necessary for the shutter to open immediately when the ICS-6 is armed, fit a link to connect
the Remote Open Command input to the Control 24V. Make sure the link is not connected
to the Monitor Supply.
Diagram 2 below shows how to implement a SIL-3 / EN13849 PL’e’ safety system using the ‘SIL3’
version of LS-20.
