ICS-6-OEM Instruction Manual
01807-53-000
Page 12 of 32
Issue 5 19 January 2021
If there are more than six doors they can be wired in groups. A common situation is where there are
double doors. Interlock switches need to be fitted to both, and the two doors can then be wired
together so that a single monitor indication light will illuminate on the front panel of the ICS-6-OEM
if either of the doors is open. The switches in a group should be wired with their safety contacts in
series. Each group may have several switches. An example diagram for two door interlock switches
wired in a group is shown below.
Coded Magnetic Interlock Switches
Coded magnetic switches supplied by Lasermet cannot be overridden by the use of a magnet. Wire
the safety circuits in the same way as described in the 'Mechanical Interlock Switches section. The
monitor contacts should not be used.
The Lasermet IS-MDC-12 is a dual channel magnetic door switch. If the mismatch detector is used in
the ICS-6-OEM, any single contact failure in the door switch will be detected and the laser inhibited.
In this switch the red and blue wires are taken to the ‘A’ terminals and the black and white wires to
the ‘B’ terminals. The green and yellow wires are not used.
For the highest level of safety two separate door switches may be used, one wired to the ‘A’
terminals and one to the ‘B’ terminals.
Emergency Stop and Break Glass Switches
The ICS-6-OEM treats Emergency Stop switches in the same way as Door Interlock switches. Ideally
the Emergency Stop switch should have two contacts which open when the button is pressed (2NC).
Connect one safety contact, which opens when the button is pressed, to the ‘A’ terminals of the E
STOP terminal block. Connect the other safety contact to the ‘B’ terminals.
