ICS-7-OEM Instruction Manual
02058-53-000
Page 24 of 29
Issue 3 19 January 2021
8.3 Mismatch Detector Remote Test and Reset
Terminals are provided that allow for remote testing and resetting of the mismatch detector if
desired. For example, a key-operated switch could be connected to the terminals so that when it is
set one way it tests the mismatch detector, and when set the other way resets it. The key is then
returned to the mid position and removed to allow normal operation to resume.
The ‘test’ switch should have a contact which is normally closed, and which opens to perform the
test. The ‘reset’ switch should have a contact which closes to reset the detector.
If the test function is not used a wire link must be fitted across the ‘Test’ terminals.
Contact Lasermet or your local distributor for assistance if you wish to use these features.
9
LED Indicators
Input LEDs A and B
Two LED’s are provided for each of the six Interlock Inputs and the Emergency Stop Input. Each pair
refers to an interlock switch or group of switches, depending on how the system has been wired up.
For each Interlock, a pair of yellow LEDs indicate that the interlock is open. If the contact is not used
and a wire link has been fitted, the corresponding LED will not illuminate.
If both ‘A’ and ‘B’ contacts are fitted and it is observed that one LED is on and the other off, this
indicates a fault which will be detected by the mismatch detector if it is enabled. In this event
operation of the unit will be inhibited. Please see the ‘Mismatch Detector’ section.
‘Safety Loop Complete’ A and B
These LED’s will light in green when both safety circuits are complete.
The system will not arm if either or both LED’s are unlit. This may be due to any of the following:
A door interlock switch is open, indicated by the ‘Input’ lights on the front panel.
The emergency stop switch (if present) is activated, indicated by the ‘E Stop’ lights on the
front panel. Reset the switch to enable the system.
The expansion board, if fitted, is not ready, or the termination plug has not been fitted.
The safety circuit is faulty.
‘Arm’ A and B
The Arm indicators will illuminate blue when external contacts have closed in an attempt to arm the
controller. The controller will not arm if only one channel is closed, indicated by only one light being
illuminated.
