Lasermet ICS-TOUCH User manual

ICS-TOUCH Instruction Manual
CEB00XXX-53-000 Issue 4 19 January 2021
LASERMET ICS-TOUCH
and ICS-6-SP Control Unit
INSTRUCTION MANUAL
INTERLOCK CONTROL SYSTEM
WITH SURGEON’S PANEL

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LASERMET ICS-TOUCH
Instruction Manual
Contents
1 Declaration of Conformity .................................................................................................. 4
2 Safety Warnings .................................................................................................................. 5
3 Concept ............................................................................................................................... 6
4 Summary of Evaluation of Compliance to EN ISO 13849-1:2015 ....................................... 7
5 Installation .......................................................................................................................... 8
5.1 Positioning ................................................................................................................... 8
6 Wiring ............................................................................................................................... 10
6.1 Power In .................................................................................................................... 10
6.2 ICS-6-SP Inputs .......................................................................................................... 10
6.3 ICS-6-SP Illuminated Sign Control Output ................................................................. 15
6.4 Output Contacts ........................................................................................................ 17
6.5 Override ..................................................................................................................... 23
7 Expansion Boards.............................................................................................................. 26
7.1 Installing Expansion Boards ....................................................................................... 26
8 Mismatch Detector ........................................................................................................... 27
8.1 Configurable Options for Safety Circuit Mismatch Events ........................................ 27
8.2 Clearing a Mismatch Fault Indication ........................................................................ 28
8.3 Mismatch Detector Remote Test and Reset ............................................................. 29
9 LED Indicators ................................................................................................................... 29

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10 Operation ...................................................................................................................... 30
10.1 Starting Up ............................................................................................................. 30
10.2 Resuming Operation after an Interlock Switch has been opened ........................ 30
11 ICS-TOUCH User Interface Status Display ..................................................................... 31
11.1 Interlock Inputs ...................................................................................................... 31
11.2 Emergency Stop Input ........................................................................................... 32
11.3 Pre-arm and Expansion Status ............................................................................... 33
11.4 Mismatch Indication and Reset ............................................................................. 34
11.5 ‘Safety Circuits OK’ Indication ............................................................................... 35
11.6 Arming the Interlock Controller ............................................................................ 35
11.7 Arming Indication .................................................................................................. 36
11.8 Override Indication ................................................................................................ 36
11.9 Language Options .................................................................................................. 37
12 ICS-TOUCH Access Control using PIN ............................................................................ 38
12.1 Lock Status Display ................................................................................................ 38
12.2 PIN Entry ................................................................................................................ 39
13 Fuses ............................................................................................................................. 41
14 Specifications ................................................................................................................ 41
15 Warranty ....................................................................................................................... 42
16 Contact Details .............................................................................................................. 43

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1 Declaration of Conformity
LASERMET LIMITED
ICS-6-SP Interlock Control Panel
Drawing no. 01982-00-000
DECLARATION OF CONFORMITY
This is to certify that the ICS-6-SP Control Unit designated by Lasermet Drawing
Number 01982-00-000 has been tested in accordance with the following directives and
standards and found to comply.
Lasermet certifies that this product complies with the basic requirements for health
and safety as provided by the following directives and standards:
Directives: Machinery Directive 2006/42/EC June 2010
Low Voltage Directive 2014/35/EU
EMC Directive 2014/30/EU
Standards: EN ISO 13849-1:2015
Safety of Machinery – Safety-related parts of Control Systems
EN 60947-1:2007 +A1:2011 +A2:2014
Low Voltage Switchgear and Controlgear
EN 61010-1:2010 +A1:2016
Safety Requirements for Electrical Equipment
Supplier:
Lasermet Limited
Lasermet House
137 Hankinson Road
Bournemouth
BH9 1HR
Dorset
United Kingdom
Country of Origin: England
Date: 10 September 2019

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2 Safety Warnings
This device is intended to be used as part of a safety system which may be used to protect personnel
and equipment from possible injury, damage, or loss.
As such it must be installed and wired according to these instructions and tested by suitably qualified
persons. No attempt may be made to tamper with the parts, open them, or use them outside of the
parameters contained herein.
The units are only designed to be fixed to surfaces using their inbuilt fixing holes. They must not
come into contact with each other or any other moving part when in use. The parts should never be
subject to impact or mechanical strain.
Safety switches should never be defeated or bypassed. It is imperative that all steps are taken to
ensure that any spare actuators are made unavailable, such that they cannot be used to defeat the
switch or reduce the protection offered by the system in any way.
Lasermet reserves the right to change the design, modify the operation of functions or add new
features at any time without prior notice.

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3 Concept
The ICS-6-SP Control Unit forms part of a laser interlock system which is primarily intended to
protect persons from accidental exposure to hazardous lasers.
The Control Unit is intended to be installed in a control panel/cubicle and works in conjunction with
and is operated by a separate human-machine interface (HMI) panel such as Lasermet’s ICS-TOUCH
which provides an operator with a means to control and monitor the interlock system.
The ICS-6-SP Control Unit is able to monitor several doors, windows, curtains etc. fitted with safety
interlock switches and disable the laser if any are open. In this manual the term ‘Door Switch’ refers
to any interlock switch which may be fitted to a door, cover, window blind etc.
The versatile ICS-6-SP Control Unit can be connected to any number of door switches and can
indicate the status of up to four switches or groups of switches. An Arm Laser button is provided on
the touchscreen to arm the laser when all the safety requirements are met. An optional key lock or
keycode on the touchscreen prevents unauthorised use of the system.
The ICS-6-SP has a fully dual channel cross-checked architecture and when correctly wired can
realise a system compliant with EN ISO 13849-1 up to performance level ‘e’.
Three safety interlock outputs each rated at 6A resistive, 250Vac, are provided to enable the laser,
operate door locks etc. The interlock outputs are volt-free contacts which close when the system is
armed. Each contact actually comprises two contacts in series. In the event of one contact failing to
open, the other contact will open, and the system is then disabled, preventing further use and
maintaining safety. The contacts can be configured for a variety of options.
A separate changeover contact is provided for operating one or two-way illuminated warning signs.
The ICS-6-SP is able to monitor output devices such as contactors and shutters with feedback (such
as Lasermet’s LS-20 beam shutter) and the signs will display a danger indication in the event of a
monitored output device failing or partly failing to assume the safe state when the system is
disarmed.
The ICS-6-SP interlock controller is mounted on a DIN rail in a wall cabinet. This unit has inputs from
interlocks which must be in the safe state for laser operation, such as door switches, blinds and
emergency stop buttons. An output to the laser enables laser operation when all the interlock inputs
are satisfied.

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The ICS-6-SP is connected to the ICS-TOUCH panel by an RS232 serial data link. A 24V power supply
is also required. The ICS-TOUCH acts as a status display for the ICS-6-SP and allows the user to arm
and disarm the controller.
Lasermet provides a full range of laser interlock equipment including control systems, interlock
switches, illuminated warning signs, laser shutters, door locks, external power supplies etc. which
can be connected to provide a complete laser interlock system. Full support, design and installation
is available from Lasermet, please contact us for any queries. Contact details are given at the end of
this manual.
4 Summary of Evaluation of Compliance to EN ISO 13849-1:2015
To achieve a complete system performance level ‘e’ the system must be wired as described in this
manual using suitably rated door sensors and measures taken to minimise the effects of common
cause failures in the sensors and wiring which may be connected to the unit.
Achieved Characteristics:
Architecture Category 4
Performance Level (PL) PL = e
PFH [1/h] 2.47 x 10-8
(based on MTTFd being ‘capped’ at 100 years)
MTTFd 381 years
Mission Time 20 years
Diagnostic Coverage (DC) 99% (HIGH)

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5 Installation
The ICS-6-SP Control Unit is designed to be attached to a 35mm ‘top-hat’ style DIN rail inside a
control cabinet. It should always be enclosed in a cabinet that requires use of a tool or key to open
to prevent tampering and risk of touching live connections. The unit should be installed such that the
length of cable needed to connect it to the user touchscreen is less than 1.5m.
Whilst the unit itself operates on 24V it is possible that higher voltages fed from other equipment
may be present on its output contacts.
The associated touch panel is fitted nearby (e.g. on a control panel) and is connected to the ICS-6-SP
Control Unit via a supplied RS-232 lead.
5.1 Positioning
The ICS-6-SP Control Unit should be mounted in a convenient position for wiring. It should be
inaccessible by operators. It has indicator lights on its top surface which would normally only need to
be observed by installation and maintenance personnel.
Provision should be made to prevent the unit from sliding along the DIN rail after fitting, for example
by the use of end clamps or other equipment.
During installation, wired connections will need to be made from the ICS-6-SP Control Unit to all the
interlocked doors, warning signs, laser interlocks, shutters and other equipment as required by the
system. Allowance should be made for wire retention such as plastic slotted trunking running
alongside both long sides of the unit.
All of the terminals are identified on the label on the top of the unit, see next page.

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Figure 1.
ICS-6-SP Control Unit Top Label showing terminal identification.
Nearest the edge of the label on a pink background are the
identifications of the bottom row terminals.
Next to these, on a green background are the identifications for the
top rows of terminals.
In the yellow box there are indication lights which light up when the
unit incoming power is on, expansion socket power is on and when the
two output channels are armed.

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6 Wiring
ICS-6-SP Fail-safe Laser Interlock Controller
The ICS-6-SP Control Unit is a versatile interlock system and there are a variety of ways in which it
can be used. Be sure you know which configuration you require before you attempt to wire the unit.
If you require further assistance, please call Lasermet technical help. Contact details are at the end
of this manual.
A 2.5mm slotted screwdriver will be needed to access the screw terminals.
6.1 Power In
The ICS-6-SP requires 24VDC power. The power supply should be able to provide at least 1A for the
unit, plus any other equipment that may be run off the same supply such as 24V illuminated signs,
magnetic door locks (maglocks) etc.
Connect the power supply to terminal block ‘24VDC Power’ on the ICS-6-SP. Three terminals are
provided for +24V, any one of which may be used for the incoming power. The others are available
for feeding the touch panel and 24V equipment such as illuminated signs and maglocks. The same
applies for the 0V terminals.
6.2 ICS-6-SP Inputs
Mechanical Interlock Switches
Up to four door interlock switches may be directly wired to the ICS-6-SP. By making external
connections, more switches can be added and arranged in groups for indication purposes.
The interlock switches are wired to the terminals labelled Input 1 through to Input 4. Each interlock
switch should have two safety contacts which are closed when the door is closed. Some door
contacts such as Lasermet’s IS-MECH switches have an additional monitor contact which closes
when the door is opened. This is not used in ICS-6-SP.

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A 4-way terminal block is provided for each door interlock switch. One of the safety contacts which
are closed when the door is closed is wired to the ‘A’ terminals. The other safety contact is wired to
the ‘B’ terminals.
If the system is required to perform to ISO 13849 performance level ‘e’, two switches are usually
required to be fitted to each door, with the safety contact of one switch wired to the ‘A’ terminals
and the safety contact from the second switch wired in a separate cable to the ‘B’ terminals. If there
is any possibility of both cables being damaged for the same reason simultaneously it may also be
necessary to route the cables in different paths.
If the laser hazard is considered low, it is possible to use switches with only one safety contact. In
this case connect the switch across the ‘A’ terminals. Fit a wire link across the ‘B’ terminals. The
Mismatch Detector cannot be used and must be disabled, see the Mismatch Detector section below.
It is usual to use low voltage 4-core flexible cable for these connections and Lasermet can supply
suitable cable in standard PVC or low smoke zero halogen (LSZH) types.
If an Interlock input is not used, one wire link should be fitted to connect the ‘A’ terminals together,
and a second wire link to connect the ‘B’ terminals on each unused terminal block.
The example diagram below shows a system with two doors wired for ISO 13849 performance level
‘e’. Each door has two switches.
Figure 2.

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If you have more than four doors you can wire them in groups. A common situation is where there
are double doors. Interlock switches need to be fitted to both, and the two doors can then be wired
together so that a single monitor indication light will illuminate on the front panel of the ICS-6-SP if
either of the doors is open. The switches in a group should be wired with their safety contacts in
series. Each group may have several switches. An example diagram for two door interlock switches
wired in a group is shown below.
Figure 3.

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If the laser hazard is low and the door switches have sufficient safety integrity it may be acceptable
to use a simplified arrangement as shown below. This relies on successful operation of the door
switch and contact failures are not detected. The ICS-6-SP mismatch detector should be disabled if
this arrangement is used. The example shows a system with two doors.
Figure 4.
Coded Magnetic Interlock Switches
Coded magnetic switches supplied by Lasermet cannot be overridden by the use of a magnet. Wire
the safety circuits in the same way as described in the 'Mechanical Interlock Switches section. The
monitor contacts should not be used.
The Lasermet IS-MDC-12 is a dual channel magnetic door switch. If the mismatch detector is used in
the ICS-6-SP, any single contact failure in the door switch will be detected and the laser inhibited. In
this switch the red and blue wires are taken to the ‘A’ terminals and the black and white wires to the
‘B’ terminals. The green and yellow wires are not used.
For the highest level of safety two separate door switches may be used, one wired to the ‘A’
terminals and one to the ‘B’ terminals.
If the laser hazard is low and the door switches have sufficient safety integrity it may be acceptable
to use the simplified arrangement described in the Mechanical Interlock Switches section above.

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Emergency Stop and Break Glass Switches
The ICS-6-SP treats Emergency Stop switches in the same way as Door Interlock switches. Ideally the
Emergency Stop switch should have two contacts which open when the button is pressed (2NC).
Connect one safety contact, which opens when the button is pressed, to the ‘A’ terminals of the E-
STOP terminal block. Connect the other safety contact to the ‘B’ terminals.
Figure 5.
If there are two or more switches, connect the contacts in series as shown below.
Figure 6.
As mentioned in the interlock switches section above, if the laser hazard is low and the emergency
stop switch has sufficient safety integrity it may be acceptable to use a switch with just one contact.
The switch should be wired across the ‘A’ terminals and a wire link fitted across the ‘B’ terminals.
The ICS-6-SP mismatch detector should be disabled if this arrangement is used.
If an emergency stop is not used, a wire link must be fitted between the two ‘A’ terminals on the E-
STOP terminal block, and a second wire link across the ‘B’ terminals.
Note: The emergency stop switch should be checked periodically.

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6.3 ICS-6-SP Illuminated Sign Control Output
Mains Voltage Warning Signs e.g. SlimJim and Low Profile Signs
Always check that the supply voltage rating of any signs matches your mains supply before
connecting. To avoid risk of shock always ensure the mains supply is isolated before making these
connections.
Option 1 One Way Illuminated Sign
The warning sign will come on when the ICS-6-SP is armed.
Figure 7.
Option 2 Two way Illuminated Warning Sign
The first warning sign will come on when the ICS-6-SP is powered. The first warning sign will go off
and the second warning sign will come on when the ‘Arm Laser’ button is pressed.
Figure 8.
Low Voltage DC Warning Signs
The following options are for 24VDC warning signs such as Lasermet’s Miniature and Ultra Warning
Signs. These signs must not be connected to the mains supply. If the power supply feeding the ICS-6-
SP is powerful enough the sign can be powered by spare terminals on the 24VDC Power terminal
block on the ICS. The ICS-6-SP needs 1A. Refer to the manual supplied with the sign for its current
requirements.

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For further assistance on Lasermet products or for supply of suitable power supplies please contact
Lasermet through your local distributor or see the contact details at the end of this manual.
Option 1 One Way Illuminated Sign
The warning sign will come on when the ICS-6-SP is armed.
Figure 9.
Option 2 Two way Illuminated Warning Sign
The first warning sign will come on when the ICS-6-SP is powered. The first warning sign will go off
and the second warning sign will come on when the unit is armed. Note that in the case of the
Lasermet Miniature and Ultra 2-way warning signs, both indications are displayed in the same unit.
Figure 10.
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-6-SP Control Unit, 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.

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6.4 Output Contacts
The ICS-6-SP has three volt-free Output contacts which may be used for various purposes including:
 Switching laser power;
 Controlling beam shutters;
 Operating the laser’s interlock input;
 Controlling door locks.
Laser Power Supply (4A maximum)
With this option, the laser mains supply is only switched on when the Arm Laser button is pressed.
This option is only suitable for smaller lasers that don’t have an interlock input. The maximum
current that may be switched is 4 amps, and the circuit must be protected at the source by a fuse or
circuit breaker not exceeding 5A rating.
To avoid risk of shock always ensure the mains supply is isolated before making these connections.
Be sure to use suitable mains-rated wiring and ensure compliance with local electrical wiring
regulations.
Figure 11.
The contact is rated at 4A resistive load maximum. If the laser mains supply requirement exceeds the
capability of the ICS-6-SP, please contact Lasermet who can provide an external contactor unit with
dual monitored safety contactors for switching higher powers.
Beam Shutters
The ICS-6-SP 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-6-SP. Where there is any
possibility of the equipment being changed or moved it is often most convenient to be able to
unplug the equipment.

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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.
Most 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-6-SP. 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 his
laser.
Laser Shutter Supply (4A maximum)
The ICS-6-SP is able to provide both continuous and switched supplies using one of the Output
contacts. Several shutters of the same type may all be powered from one Output contact, please
contact Lasermet for details if required.
Note: The selected Output contact used for switching shutters must not be used for any other
purpose.
Figure 12.
LS-10 Shutter
Use the above circuit. Note- old versions of LS-10 will only work off 12VDC so a separate 12VDC
supply will be required.
LS-20 and LS-200 Shutter
The LS-20 and LS-200 Shutters can use the above circuit, however it is recommended that the
monitoring circuit shown below is included to allow the ICS-6-SP Control Unit to monitor the shutter
and to detect any faults.

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If using the LS-20 SIL3 twin shutter the circuit below must be used to achieve the SIL3 / PL ‘e’ rating.
Figure 13.
The LS-20 Shutter has its own distribution socket. The wiring connections inside the distribution box
are shown below:
Figure 14.

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Laser Shutter - with own power supply
If your shutters have their own power supply or are to be run from an existing supply, you can use
one of the controller outputs to operate them. If the shutter requires a single contact to operate it,
connect the A and B contacts of the controller output in series as shown in the wiring diagrams
above for LS shutters, so that the shutter closes if either one or both output contacts open.
The connections should be arranged so that the shutter closes when the ICS Output contact opens.
Any ICS-6-SP Control Unit output used for shutters must not also be used for laser interlock control.
The contact is limited to 4 amps resistive load. If your shutter is solenoid-based it may need a
protection diode fitted to prevent possible damage to the ICS-6-SP Control Unit.
Interlock Connectors
Any of the ICS-6-SP Control Unit output contacts may be used to operate a laser’s interlock control,
provided they haven’t been used for any other purpose. The contacts are closed when the ICS-6-SP
Control Unit is armed. If there is more than one laser each must use its own output connector on the
ICS-6-SP Control Unit. Interlock sockets of several lasers must not be connected together.
Where the controller is part of a fixed laser system it is usual to directly connect the two devices. For
lasers with a single interlock channel use the following connections:
Figure 15.
For lasers with dual channel interlocks use the following connections:
Figure 16.
Where the laser may be removed from the system or exchanged a Lasermet Distribution Box may be
used to provide a connection point convenient to the laser. In this case for lasers with a single
channel interlock the A and B ICS-6-SP Control Unit output channels are connected in series to pins 1
and 2 of the plug of the distribution box. See the diagram on the next page.
Leads are available in various lengths to plug into the distribution box. The other end of the lead is
unconnected to allow fitment of a plug suitable for the laser, as different lasers have different
connectors.