ICS-7-OEM Instruction Manual
02058-53-000
Page 15 of 29
Issue 3 19 January 2021
Note regarding Sign Operation
If output devices such as LS-20 shutters or contactors are fitted, or if the laser has feedback contacts
which close to prove that it is in a safe condition and the feedback signal from such devices is taken
to the ‘Output Monitor’ terminals of the ICS-7- OEM, the sign green ‘Laser Off’ indication will not be
given if these devices are not proven to be in the safe condition or if they are removed from the
system.
6.3 Interlock Operator Output Contacts
The ICS-7-OEM has seven dual-channel volt-free interlock operator output contacts (outputs 2-8)
which may be used for various purposes including:
Operating warning signs as shown above
Controlling beam shutters
Operating the laser’s interlock input
Controlling door locks
Signalling the state of the controller to a PLC
There is also one normally closed output which opens when the laser is armed (output 1). This may
be used for signs or for signalling the output state.
Beam Shutters
The ICS-7-OEM may operate one or more beam shutters and one or more laser interlocks. For
permanent fixed installations these may be directly wired to the ICS-7-OEM. Where there is any
possibility of the equipment being changed or moved it is often most convenient to be able to
unplug the equipment.
Lasermet provide a range of small distribution boxes which allow for convenient positioning of wall
or surface-mounted plugs for laser interlocks and sockets for shutters. The boxes are available with
different combinations of plugs and sockets.
Modern industrial lasers are usually equipped with dual channel interlock inputs which may be
directly connected to one of the dual channel outputs of the ICS-7-OEM as described later in this
manual.
Many smaller lasers only have a single channel interlock input which can present problems if the
safety system has to comply with ISO 13849 performance level ‘e’ since two methods of control are
usually required. Some lasers have internal beam shutters which may be controlled by the ICS-7-
OEM. If the laser has two means of disabling, e.g. interlock and internal shutter, it is recommended
that both are used. Otherwise it may be necessary to consider having an external shutter in addition
to the laser’s own interlock if a high safety integrity is required.
Lasermet’s beam shutters are supplied with suitable leads to plug into the distribution boxes. Open-
ended leads are provided for laser interlocks allowing the customer to fit the correct plug for their
laser.
