ICS-7-OEM Instruction Manual
02058-53-000
Page 26 of 29
Issue 3 19 January 2021
Power Supply LEDs
Main supply points
Green ‘24V On’ and ‘Expn On’ LEDs indicate that the main 24V power supply and the 24V switched
power supply to the expansion board are on. If the ‘24V On’ LED is not illuminated, check the power
supply connection and the main power supply fuse (4A T). If the ‘Expn On’ LED is not illuminated,
check the expansion supply fuse (3.15A T).
Power supply trips
In the ICS-7-OEM, the internal fuses for the safety inputs have been replaced with fast-acting
electronic trips. These are indicated by LEDs in the Power Supplies block. They are normally
illuminated in green. If a short circuit occurs between the A and B safety inputs, which have opposite
polarity, the ‘Loop A’ or ‘Loop B’ LED will extinguish. This may be accompanied by a mismatch fault.
When the short circuit has been rectified and any mismatch fault cleared, the power supply trips can
be cleared by cycling the main +24V power supply. Another trip LED, ‘Prearm’, indicates an internal
supply. If this LED is not lit, there is probably an internal fault in the unit.
‘Expn Fault’ LEDs
When the safety loop connection to the expansion board is broken, this LED is illuminated in yellow.
This may occur if an expansion board has detected a fault, or if the expansion socket is open and no
termination plug has been fitted.
10
Operation
Once correctly wired, the ICS-7-OEM is extremely easy to use. The following instructions cover the
most common arrangements. For more complex customer-specific systems, additional procedures
may apply.
10.1
Starting Up
1)
Apply 24V power to the controller.
2)
Close all interlocked doors. The ‘Input’ LED’s on the front panel will indicate yellow if the
corresponding door is not closed.
3)
Check any Emergency Stop buttons are released- if any have been pressed the ‘E Stop’ lights
will illuminate yellow.
4)
The 'Safety Loop Complete' and Pre-Arm Ready LED’s will light green.
5)
When you are ready to operate the laser, close the external contacts connected to the Arm
terminals. If all is well the amber ‘System Armed’ lights will be illuminated on the front panel
of the unit.
N.B. Be aware that this action restores power to the shutters or the laser, and may result in
accessible laser beams, depending on your system set up. This button should only be pressed when
everyone is ready and the necessary safety precautions have been taken e.g. protective eyewear etc.
If an attempt to arm the system is made while an input is open, the controller will not arm even if
the input is then closed. The external ‘Arm’ contacts must be opened, and a new arm attempt made.
