ICS-7-OEM Instruction Manual
02058-53-000
Page 21 of 29
Issue 3 19 January 2021
7.1 Installing Expansion Boards
Expansion boards are fitted into a separate module and connected to the ICS-7-OEM using a
dedicated 15-way ‘D’ connector on the top of the unit.
Refer to the instructions supplied with the expansion unit for further details of how to fit expansion
boards. Each expansion board has its own dedicated set of instructions showing how it is connected
to external equipment and used.
If the expansion module is not used a termination plug must be fitted into the socket on the top of
the ICS-7-OEM. The controller will not operate if the socket is left empty.
7.2 Use with Active Guarding
Power Switching and Self-test
The Active Guarding circuits are activated by a switched +24V supply from the ICS-7-OEM. This is
normally switched on, allowing the status of the Active Guarding inputs to be seen. On closing the
Arm inputs, the sw24V supply is switched off momentarily to test the operation of the Active
Guarding circuits, then switched back on if the test succeeds.
NOTE: This behaviour is different from that of the ICS-6-OEM.
Resetting faults on the Active Guarding
When a fault occurs on one of the Active Guarding inputs, it is temporarily latched to indicate which
input has the problem. This shows a red light on the appropriate Active Guarding Interface input.
When the problem has been rectified by a technician, the ‘Expn Reset’ button on the ICS-7-OEM
should be pressed. This will briefly cycle the sw24V power to the expansion board and the
red light on the Active Guarding should be extinguished. If the red light remains, a fault still
exists.
As an alternative to the ‘Expn Reset’ button, a contact closure may be made at the ‘Expn Reset’
input.
7.3 Expansion Board Fault Output
A volt-free contact output has been provided to signal a fault in the safety circuit connected to an
expansion board. This may be used for panel indication or as an input to a PLC.
