ICS-7-OEM Instruction Manual
02058-53-000
Page 11 of 29
Issue 3 19 January 2021
6.1 ICS-7-OEM Inputs
Mechanical Interlock Switches
Up to six dual-channel door/cover interlock switches may be directly wired to the ICS-7-OEM. By
making external connections, more switches can be added and arranged in groups.
The interlock switches are wired to the terminals labelled Input 1 through to Input 6. Each interlock
switch should have two safety contacts which are closed when the door is closed. Some door
contacts such as Lasermet’s IS-MECH switches have an additional monitor contact which closes
when the door is opened. This is not used in ICS-7-OEM.
A 4-way terminal block is provided for each door interlock switch. One of the safety contacts which
are closed when the door is closed is wired to the ‘A’ terminals. The other safety contact is wired to
the ‘B’ terminals.
The example diagram below shows a system with two doors wired for ISO 13849 performance level
‘e’. Each door has two switches.
Wiring for two doors
