ICS-6 ELISe Interlock® ControllerThe ICS-6 "ELISe" (Expandable Laser Interlock® System 'e')

  • 3 Expansion card sockets
    The card types enable Integrated Active Laser Guarding (Laser Jailer), Safety Logic Plus integration, (for complex logic circuits and large numbers of Interlock® switches), and Ethernet/USB Connectivity which in turn enables ICS-6 interlocks to be monitored remotely – a real bonus to safety communications .
  • Full start-to-end dual channel architecture – for even higher reliability
  • Full start-to-end fault detection – simplifying analysis
  • Interlocked mains supply – for added safety
  • Interlocked low voltage supply for beam shutters – for faster integration
  • Laser Interlock® connector operators – for all lasers
  • Key-switch operation – to prevent unauthorised use
  • Arm laser button – just press to arm
  • Time limited fail-safe override option – for authorised personnel
  • Automatic switching of illuminated signs – indicating danger or safe modes
  • Emergency stop circuit – to prevent injury or damage in an emergency

Please note that as from December 2021, the ICS-6 is replaced by the ICS-9 (which is almost identical except that it has NRTL test certification for the US, and it is fully compatible with ICS Buddy). You should visit the ICS-9 page now as this page remains for reference purposes only.

The ICS-6 “ELISe” Expandable Laser Interlock® System (to achieve performance level ‘e’) is designed to achieve EN ISO 13849-1 PLe.

The ICS-6 is the latest in the ICS Interlock® series, which is the most popular Laser Interlock® Control System designed and manufactured by Lasermet. This latest version is expandable and has, as one of its options, a remote monitoring facility.

This compact, versatile unit can control laser interlocks, door locks, illuminated warning signs and other equipment. It can operate beam shutters and the laser power with feedback monitoring and fault detection. It can be interfaced to Access Control and Fire Detection Systems and is fitted with an Override to allow controlled access through interlocked doors while also accepting emergency stop inputs.

The ICS-6 provides even higher levels of safety and functionality and has full start-to-end dual channel architecture and fault detection to meet the latest standards.

It has a simple, easy-to-use control panel which can be wired directly to 4 interlocks or groups of interlocks.

Flexible Expandable System

Lasermet’s Interlock® controllers have earned a reputation as cost effective, reliable and highly flexible.

The standard ICS-6 can be expanded to have 9 Interlock® outputs by adding the IB9 Interlock® board. And by using the deep back box, contactors can also be added to give interlocked 32A single phase and 3 phase mains supplies. ICS-6 can be connected to other Lasermet Interlock® controllers to operate as a master or slave unit.

ICS-6 has an expansion socket and can be fitted with up to 3 expansion cards (which are automatically tested). There are 4 different types of card as follows that can be fitted:-

  • Integrated Active Laser Guarding option
  • Safety Logic Plus integration option
  • Ethernet/USB Connectivity
  • Uncommitted relay expansion card

Typical Interlock® configuration

  ICS-6 ICS-6 + IB9
ICS-6 + IB9 +

Contactor Enhancement

3 x outputs

(rated at 6A at 110/250 VAC / 50 VDC)

Configure as desired e.g.

1 off Interlocked mains output (6 A)

1 off Interlocked shutter output

(for up to 4 shutters)

1 off Interlock® connector

8A at 110/250 VAC / 50 VDC)

Configure as desired eg.

1 off Interlocked mains output (8 A)

1 off Interlocked shutter output

(for up to 6 shutters)

7 off Interlock® connector

8 x outputs

(rated at 8A at 110/250 VAC / 50 VDC)

4 x mains outputs

(rated at 32 A, 415 VAC)

Configure as desired e.g.

1 off Interlocked mains output (32 A)

1 off Interlocked 3-phase output (32A)

1 off Interlocked shutter output

(for up to 30 shutters)

7 off Interlock® connector operators

Door interlock


Unlimited numbers can be connected

Monitoring available for 4 switches or groups of switches

Warning light
110/230V or 24 VDC, 1A.  Automatic switching of single or dual message signs


Unlimited numbers of emergency stops can be connected

Can be connected into Fire Alarm or Access Control system

Supply: 110/230 V, 1A + connected load
Size 265w x 230h x 86deep (mm) 265w x 230h x 145deep (mm) 265w x 230h x 145deep (mm)
Weight 2 kg 2.2 kg 3 kg
Directives Conforms to Machinery Directive, Low Voltage Directive, EMC Directive
Standards Meets EN ISO 13849-1 PLe (Cat 4 safety system, Performance Level ‘e’), EN61508 (SIL 4), EN61010, EN60947-1
Key Details

ICS-6 can be configured as a locking or non-locking Interlock® system featuring:

  • Automatic fault detection and shutdown
  • LED indication for the Status of the following:
    • Interlock® Switch
    • Expansion
    • Emergency Stop
    • Safety Circuits OK
    • System Overridden
    • Safety Circuit Fault (Mismatch Fault)
    • Laser Armed
  • Dual-redundant fail-safe circuitry
  • Dual Channel Override control
  • Feedback-based Sign Control – to maintain warning sign at Danger if the Shutter/power control fails to go to the safe condition when the system is disarmed

Further functions:

  • Can be used as a local laser controller as part of a larger system, which may be controlled by a master Interlock® controller
  • Optional safety status and ready status outputs can be provided to communicate with other Lasermet Interlock® controllers or a remote indicator panel
  • Surface-mounted, the ICS-6 has a “deep box option” for expansion cards or safety contactors to switch high power or multiple lasers.
  • External facility to allow the system to be disabled by an external source e.g. supervisor’s key-switch
  • Operation of mains or low voltage signs
  • Integrated automatic switching of single or dual mode signs
  • Connect to virtually unlimited number of door contacts and Emergency Stop Buttons