ABB Knox User manual

ABB Jokab Safety Varlabergsvägen 11, SE-434 39, Sweden
www.abb.com/jokabsafety
Original instructions
Knox
Safety and process lock

2TLC172250M0201, rev. D 2 www.abb.com/jokabsafety
2013-08-12
Read and understand this document
Please read and understand this document before using the products. Please consult your ABB JOKAB SAFETY
representative if you have any questions or comments.
WARRANTY
ABB JOKAB SAFETY’s exclusive warranty is that the products are free from defects in materials and workmanship
for a period of one year (or other period if specified) from date of sale by ABB JOKAB SAFETY.
ABB JOKAB SAFETY MAKES NO WARRANTY OR REPRESENTATION, EXPRESSED OR IMPLIED,
REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF
THE PRODUCTS, ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OR THEIR INTENDED
USE. ABB JOKAB SAFETY DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED.
LIMITATIONS OF LIABILITY
ABB JOKAB SAFETY SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL
DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall responsibility of ABB JOKAB SAFETY for any act exceed the individual price of the product on
which liability asserted.
IN NO EVENT SHALL ABB JOKAB SAFETY BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER
CLAIMS REGARDING THE PRODUCTS UNLESS ABB JOKAB SAFETY’S ANALYSIS CONFIRMS THAT THE
PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
SUITABILITY FOR USE
ABB JOKAB SAFETY shall not be responsible for conformity with any standards, codes, or regulations that apply
to the combination of products in the customer’s application or use of the product. At the customer’s request, ABB
JOKAB SAFETY will provide applicable third party certification documents identifying ratings and limitations of use
that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of
the products in combination with the end product, machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended
to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be
suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this document.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, and installations subject to separate industry or government
regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY
WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE ABB JOKAB SAFETY PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PERFORMANCE DATA
While every effort has been taken to ensure the accuracy of the information contained in this manual ABB JOKAB
SAFETY cannot accept responsibility for errors or omissions and reserves the right to make changes and
improvements without notice. Performance data given in this document is provided as a guide for the user in
determining suitability and does not constitute a warranty. It may represent the result of ABB JOKAB SAFETY’S
test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to
the ABB JOKAB SAFETY Warranty and Limitations of Liability.

2TLC172250M0201, rev. D 3 www.abb.com/jokabsafety
2013-08-12
Table of Contents
1Introduction......................................................................................................................................... 4
Scope........................................................................................................................................................................4
Audience...................................................................................................................................................................4
Prerequisites.............................................................................................................................................................4
Special notes ............................................................................................................................................................4
2Overview.............................................................................................................................................. 5
General description...................................................................................................................................................5
Safety regulations.....................................................................................................................................................5
Function description..................................................................................................................................................6
3Connections ........................................................................................................................................ 7
Connection examples ...............................................................................................................................................9
4Installation and maintenance ........................................................................................................... 11
Installation precautions...........................................................................................................................................11
Maintenance ...........................................................................................................................................................11
Assembly –conventional door................................................................................................................................12
Assembly –sliding door..........................................................................................................................................16
5Operation........................................................................................................................................... 19
Locking:...................................................................................................................................................................19
Unlocking:...............................................................................................................................................................19
Escape release:......................................................................................................................................................19
Auxiliary release (Knox 1Ax, -1Bx, -1Fx):...............................................................................................................19
Maintenances mode ...............................................................................................................................................20
LED indication.........................................................................................................................................................20
6Model overview.................................................................................................................................. 21
Available models.....................................................................................................................................................21
Accessories.............................................................................................................................................................22
7Technical data ................................................................................................................................... 23
Dimensions.............................................................................................................................................................24
Hole pattern ............................................................................................................................................................26
8EC Declaration of conformity ........................................................................................................... 27

2TLC172250M0201, rev. D 4 www.abb.com/jokabsafety
2013-08-12
1 Introduction
Scope
The purpose of these instructions is to describe the safety lock Knox and to provide the necessary information
required for assembly, installation, checks and adjustments after installation, and maintenance. The instructions
also include information necessary to connect Knox to a safety circuit.
Audience
This document is intended for authorized installation personnel.
Prerequisites
It is assumed that the reader of this document has knowledge of the following:
Basic knowledge of ABB Jokab Safety products.
Knowledge of safety devices and safety locks.
Knowledge of machine safety.
Special notes
Pay attention to the following special notes in the document:
Warning!
Danger of severe personal injury!
An instruction or procedure which, if not carried out correctly, may result in injury to the technician
or other personnel.
Caution!
Danger of damage to the equipment!
An instruction or procedure which, if not carried out correctly, may damage the equipment.
NB:
Notes are used to provide important or explanatory information.

2TLC172250M0201, rev. D 5 www.abb.com/jokabsafety
2013-08-12
2 Overview
General description
The safety lock Knox with frame part Knox 2A, is a lock that complies with the highest safety level (two locking bolts
with monitored positions) that can be used both as a safety and a process lock. The locking function is
electronically controlled and is bi-stable, i.e. it retains its position (unlocked/locked) in the event of a power failure.
Connection is made to an 8-pole M12 connector, where dual signals for locking/unlocking are used for safe
operation, i.e. no dangerous situation will occur because of short-circuits or cable breakage.
Knox, with frame part Knox 2X, is a process lock with a built in safety sensor to monitor that door is closed and
locked. While powered, a single locking signal must be applied to keep the device locked. However, the locking
function is bi-stable in case of a power failure, i.e. the lock retains its position (unlocked/locked) if power to the
device is cut off. Connections to Knox 2X is made through a 5-pole M12 connector, with a pin configuration which
allows connection to an Urax unit for easy connection to the AS-i bus.
The handles operate as they would on a normal door apart from the exterior handle also having a reset function,
reducing the need for an extra reset button for this device, and an interior handle that can be used for escape
release when the device is in a locked state. Its design and durability makes the device ideal for harsh
environments as the sensors in the lock are non-contact and the lock is manufactured out of stainless steel.
Shielded cable is recommended between this unit and the rest of the safety circuit.
Safety regulations
Warning!
Carefully read through this entire manual before using the device.
The devices shall be installed by a trained electrician following the Safety regulations, standards and the Machine
directive.
Failure to comply with instructions, operation that is not in accordance with the use prescribed in these instructions,
improper installation or handling of the device can affect the safety of people and the plant.
For installation and prescribed use of the product, the special notes in the instructions must be carefully observed
and the technical standards relevant to the application must be considered.
In case of failure to comply with the instructions or standards, especially when tampering with and/or modifying the
product, any liability is excluded.

2TLC172250M0201, rev. D 6 www.abb.com/jokabsafety
2013-08-12
Function description
Handle positions
Open
Door open, outer handle pressed down and escape release handle in horizontal position.
Reset, openable
The safety device is reset but the door is unlocked and can be opened from either side.
Outer handle in upward position and escape release handle turned upwards slightly from
the horizontal position.
Escape release
Door opened by escape release. The door can always be opened from the hazardous
area. The door unlocks and the safety circuit is opened when the escape release is
pressed down. Independent of the outer handle position.
Operational mode
Door is locked and reset, closing the safety circuit (i.e. allowing a process to start). Both
handles on the device are in their upward position. The door can only be opened from
the hazardous area (using the escape release handle) causing the process to stop.
Maintenance mode
The two holes in the locking bolts (one on each bolt) are intended for padlocks to be
fitted during maintenance work within the hazardous area, as an additional measure to
reduce the risk of entrapment.
Opened
Reset, openable
Escape released
Operational mode, locked and reset

2TLC172250M0201, rev. D 7 www.abb.com/jokabsafety
2013-08-12
3 Connections
Electrical connections –Knox 2A
Locking
The internal motor will lock Knox when supplied with 24 VDC, with pin-3 as the positive pole (+) and pin-4 as the
negative pole (-).
The locking signals must be applied for at least 2 seconds or until the dynamic output signal from the Eden sensor
is active. There is no maximum time limit; the locking signals may be applied continuously during the time Knox is
locked.
Unlocking
The internal motor will unlock Knox when supplied with 24 VDC, with pin-3 as the negative pole (-) and pin-4 as the
positive pole (+).
The unlocking signals must be applied for at least 2 seconds. There is no maximum time limit; the unlocking signals
may be applied continuously during the time Knox is unlocked.
NB: Knox 2A will retain its locked/unlocked state when power is cut off.
Warning! All information output signals are non-failsafe and must therefore never be used to control a safety
application. To control a safety application the safe dynamic signals from Eden must be used to determine if a door
is locked or not.
Warning! The system must be connected using a fuse of max 6A.
ADAM
EDEN
Knox 2A + 24 V
1 7 6 5 3 4 82
Reset
Sensor
Motor
M12 8-pole male seen
from cable side
M12 8-pole female
seen from cable side
8-pole M12-connector:
1 ) White: Dynamic input signal
2 ) Brown: +24 VDC
3 ) Green: Lock
4 ) Yellow: Lock inverse
5 ) Grey: Information Locked
6 ) Pink: Dynamic output signal
7 ) Blue: 0 VDC
8 ) Red: Information Reset
Caution! All cable colours according to ABB Jokab Safety standard cable.

2TLC172250M0201, rev. D 8 www.abb.com/jokabsafety
2013-08-12
Electrical connections –Knox 2X
Locking
The locking signal at pin-5 must be continuously applied (+24 VDC) to keep the device locked. When the locking
signal is applied, it may take up to 2 seconds for Knox to fully reach the locked state.
Unlocking
Knox will be unlocked when no locking signal is applied. It may take up to 2 seconds until Knox is unlocked.
NB: Knox 2X will retain locked/unlocked state if the device power supply (pin-1 and -3) is cut off.
Warning! The system must be connected using a fuse of max 6A.
ADAM
EDEN
Knox 2X
41 32
Motor
5
M12 5-pole male seen
from cable side
M12 5-pole female
seen from cable side
5-pole M12-connector:
1) Brown: +24 VDC
2) White: Dynamic input signal
3) Blue: 0 VDC
4) Black: Dynamic output signal
5) Grey: Lock (+24 VDC)
Unlock (0 VDC)
Caution! All cable colours according to ABB Jokab Safety standard cable.

2TLC172250M0201, rev. D 9 www.abb.com/jokabsafety
2013-08-12
Connection examples
Connection example –Knox 2A with signal for unlocking from other safety system
NB: The info reset signal is HIGH when the outer handle on Knox is set in its upward position.
NB: The system will lock Knox if there is no signal for unlocking.
NB: Vital 1 is used to monitor the locking
Warning! The system must be connected using a fuse of max 6A.
Warning! Signal for unlocking must be a safe signal from system in the same enclosure.
ADAM
EDEN
1 7 6 5 3 4 82
1 7 6 5 3 4 82
T1 B2 R1
A1 A1
A2 A2
B1
+24 V
Knox 2A
JOKAB SAFETY
Type: Vital 1
Motor
Reset
Sensor
Info reset
Info locked
Signal for unlocking
Safe signal
ABB JOKAB SAFETY
Type: Vital 1

2TLC172250M0201, rev. D 10 www.abb.com/jokabsafety
2013-08-12
Connection example –Knox with locking and monitoring on a Pluto and an extra non-safe relay
NB: The info reset signal is HIGH when the outer handle on Knox is set in its upward position.
Caution! Output from Pluto Q02 and IQ11 must never be set at the same time; doing so may cause damage to
Pluto outputs.
Warning! System must be connected using fuse of max 6 A.
ADAM
EDEN
24 V 0 V
Knox 2A + 24 V
+24 V0 IQ10 I00 Q02 IQ11
1 7 6 5 3 4 82
1 7 6 5 3 4 82
A1 NOCOMNC
A2
JOKAB SAFETY
Reset
Sensor
Motor
Info
24 VDC
Type: PLUTO
ABB JOKAB SAFETY

2TLC172250M0201, rev. D 11 www.abb.com/jokabsafety
2013-08-12
4 Installation and maintenance
Installation precautions
Warning! Follow the below instructions carefully to avoid personal injury or damage to the device.
Knox must be protected from excess current by a fuse of max 6A.
Knox shall always be mounted with the locking bolts aligned horizontally.
Never use Knox where the ambient temperature goes below +5° C since icing can disrupt the functions.
All the safety functions must be tested before starting up the system.
It must be ensured that the escape release is not possible to reach from outside of the protected area. E.g.
by reaching over a door with low height.
If the built in reset-function (by lifting the outer handle) is used to reset the safety circuit, it must be ensured
that it is not possible to reach the handle from inside the protected area. Otherwise a separate reset button
must be added to the safety circuit out of reach from inside of the protected area.
When installing a Knox with possibility to unlock manually from the outside (Knox 1_x), the introduced risk
must be considered in the risk analysis. Especially the risk of misuse must be taken into consideration.
Routines, adapted to the application, about the use of manual unlock should be prepared. The routines
may describe when manual unlocking may be performed and, if necessary, where to store a fitting tool.
Maintenance
The opening of the frame part should be cleaned regularly.
In case of dirt indication (flashing LEDs, see LED indication); thoroughly clean the two optical lenses at the
edge of the frame part opening (see figure).
Warning!
The safety functions and the mechanics shall be tested regularly, at least once every year to confirm that all the
safety functions are working properly (EN 62061:2005).
In case of breakdown or damage to the product, contact the nearest ABB Jokab Safety Service Office or reseller.
Do not try to repair the product yourself since it may accidentally cause permanent damage to the product,
impairing the safety of the device which in turn could lead to serious injury to personnel.
Optical lens

2TLC172250M0201, rev. D 12 www.abb.com/jokabsafety
2013-08-12
Assembly –conventional door

2TLC172250M0201, rev. D 13 www.abb.com/jokabsafety
2013-08-12

2TLC172250M0201, rev. D 14 www.abb.com/jokabsafety
2013-08-12
Outward opened, conventional door (Knox 1A, Knox 1AX)
1 ) Component overview.
2 ) Attach and fasten the handle for escape release on the back of the door part. Prepare the door part for
mounting on ABB Jokab Safety Quick-Guard system by lightly attaching the mounting nut and screw according
to figure 2.
3 ) The type of door determines what step to take.
a. If the door surface is completely covered, a hole needs to be drilled for the escape release. The centre of
the hole should be 60 mm from the Quick-Guard aluminium profile (or 104 mm from the edge of the door).
The diameter of the hole should be 45-60 mm.
b. If Knox is to be mounted on a mesh door, an extra PC plate (article number 2TLA020106R0000) can be
placed on the mesh to prevent the door from being opened from the outside (using the escape release) or
reset from the inside (e.g. by using a screwdriver to push the handle, refer to risk analysis to determine
necessity). It might be necessary to cut away a small piece of the mesh to get the handle through, see
figure 3b.
4 ) Pass the handle for escape release through the hole to the back of the door. Fit the mounting nut to the Quick-
Guard profile. Fasten the mounting screws lightly to still be able to adjust position.
5 ) Perform step X) if necessary. Mount the Knox frame part according to figure 5. Make sure that the M12-
connector is facing upwards.
6 ) Adjust horizontal and vertical position. Make sure the guiding pins on the frame part are centred in the locating
holes on the door part. Fasten the mounting screws with the tightening torque according to figure 6. To comply
with safety standard EN 1088 the socket head cap must be drilled if a fitting hex key may be accessible to
operators.
X) At delivery, the frame part is ready for use with a door part for an outward opened door with hinges to the right,
or an inward opened door with hinges to the left. If necessary, the frame part can be adjusted to fit the opposite
type of door, i.e. an outward opened door with hinges to the left or an inward opened door with hinges to the
right. To achieve this, unscrew the upper guiding pin and screw it back in the threaded hole on the opposite
side. The lower guiding pin is pushed to the opposite side until the guiding pins are of equal length.

2TLC172250M0201, rev. D 15 www.abb.com/jokabsafety
2013-08-12
Inward opened, conventional door (Knox 1B, Knox 1BX)
The instructions for an inward (toward hazardous area) opened door use the same illustrations as for an outward
opened door. The main difference between the two is that a lock for an inward opened door is mounted on the
inside of the door, towards the hazardous area, which is why the handles are different from Knox 1A/-1Ax locks.
1 ) Component overview.
2 ) Attach and fasten the outer(silver coloured) handle on the back of the door part. Prepare the door part for
mounting on ABB Jokab Safety Quick-Guard system by lightly attaching the mounting nut and screw according
to figure 2.
3 ) The type of door determines what step to take.
a. If the door surface is completely covered, a hole needs to be drilled for the handle. The centre of the hole
should be 25-30 mm from the Quick-Guard aluminium profile (or ~70 mm from the edge of the door). The
diameter of the hole should be 45-60 mm.
b. If Knox is to be mounted on a mesh door, an extra PC plate (article number 2TLA020106R0000) can be
placed on the mesh to prevent the door from being opened from the outside (using the escape release) or
reset from the inside (e.g. by using a screwdriver to push the handle, refer to risk analysis to determine
necessity). It might be necessary to cut away a small piece of the mesh to get the handle through, see
figure 3b.
4 ) Pass the outer(silver coloured) handle through the hole from the inside to the front of the door. Fit the
mounting nut to the Quick-Guard profile. Fasten the mounting screws lightly to still be able to adjust position.
5 ) Perform step X) if necessary. Mount the Knox frame part according to figure 5. Make sure that the M12-
connector is facing upwards.
6 ) Adjust horizontal and vertical position. Make sure the guiding pins on the frame part are centred in the locating
holes on the door part. Fasten the mounting screws with the tightening torque according to figure 6. To comply
with safety standard EN 1088 the socket head cap must be drilled if a fitting hex key may be accessible to
operators.
X) At delivery, the frame part is ready for use with a door part for an outward opened door with hinges to the right,
or an inward opened door with hinges to the left. If necessary, the frame part can be adjusted to fit the opposite
type of door, i.e. an outward opened door with hinges to the left or an inward opened door with hinges to the
right. To achieve this, unscrew the upper guiding pin and screw it back in the threaded hole on the opposite
side. The lower guiding pin is pushed to the opposite side until the guiding pins are of equal length.

2TLC172250M0201, rev. D 16 www.abb.com/jokabsafety
2013-08-12
Assembly –sliding door

2TLC172250M0201, rev. D 17 www.abb.com/jokabsafety
2013-08-12

2TLC172250M0201, rev. D 18 www.abb.com/jokabsafety
2013-08-12
Sliding door (Knox 1F, Knox 1FX)
1 ) Component overview.
2 ) An opening of 215x195 mm (HxW) is needed in the door where Knox 1F is to be mounted. The type of door
determines what kind of tool that is most suitable. A door with polycarbonate or plate is preferably handled with
a jigsaw and an opening in a mesh door is made with small bolt cutters.
3 ) Pass the T-handle handle through the hole to the back of the door. Fit the mounting nut to the Quick-Guard
profile. Fasten the mounting screws lightly to still be able to adjust position.
4 ) Perform step X) if necessary. Mount the Knox frame part according to figure 4. Fasten the screws lightly, they
should be tightened with the noted tightening torque when the complete lock is accurately in place (after step
5). Make sure that the M12-connector is facing upwards.
5 ) Adjust horizontal and vertical position. Make sure the guiding pins on the frame part are centred in the control
holes on the door part. Fasten the mounting screws with the tightening torque according to figure 5. To comply
with safety standard EN 1088 the socket head cap must be drilled if a fitting hex key may be accessible to
operators.
X) At delivery, the frame part is ready for use with a door part for a sliding door opened to the right. If
necessary, the frame part can be adjusted to fit the opposite type of door, i.e. a sliding dooropened to the left.
To achieve this, unscrew the upper guiding pin and screw it back in the threaded hole on the opposite side.
The lower guiding pin is pushed to the opposite side until the guiding pins are of equal length.
Warning!
Knox 1F and Knox 1Fx are intended to fit onto ABB Jokab Safety Quick-guard sliding doors with standard design.
In case of other fencing system, special attention must be drawn to fully comply with the installation dimensions to
position door-part and frame-part relative to eachother.

2TLC172250M0201, rev. D 19 www.abb.com/jokabsafety
2013-08-12
5 Operation
Locking:
1 ) Remove any padlock in place.
2 ) Close the door.
3 ) Make sure that the hazardous area is clear, then pull outer handle upwards to reset the safety device.
Door locking according to safety-PLC-program.
4 ) Knox is locked when the escape release handle is in upward position and the outmost LED on the frame part
lights green.
NB: It may take up to 2 seconds for Knox to fully reach the locked state after the locking signal has been applied.
Warning! It is imperative that the person resetting the safety device confirms that the hazardous area is clear
before resetting the safety device.
Unlocking:
1 ) Wait until the safety monitor acknowledges that the hazardous process has stopped (required for safety lock).
Door unlocking according to safety-PLC-program (or directly by output signal from a standstill monitor, for
example).
The escape release handle is released from the upper position and the outmost LED on the frame part lights
red when the door is unlocked.
2 ) Press the outer handle down and open the door.
NB: It may take up to 2 seconds for Knox to completely lock/unlock when the signal is sent. However, using the
escape release handle will unlock Knox mechanically and is instant.
Caution! Never try to force the lock as it can cause permanent damage to the product. Knox is by design equipped
with a shear pin on the inside of the handle shaft, which is intended to break before any safety critical part is
damaged.
Escape release:
Knox 1A, -1Ax, -1B, -1Bx:
1 ) Press the red escape release handle down and open the door.
Meanwhile, a stop signal will be generated and the hazardous process will be stopped.
Knox 1F, -1Fx:
1 ) Turn the escape release handle in the direction where upper part of handle moves in the direction of door
opening. While holding the handle turned, push handle outward and slide the door to open.
Auxiliary release (Knox 1Ax, -1Bx, -1Fx):
1 ) Remove the seal.
2 ) Insert a 4 mm hex key and turn for unlocking. Turn clockwise on Knox 1_-R and turn counter-clockwise on
Knox 1_-L. I.e. rotate the hex key in the same direction as the handle is turned when opening.
3 ) Press the outer handle down and open the door.
4 ) When finished, investigate the cause for using manual unlocking and replace the seal with a new one.
Warning!
It's imperative to follow any additionally routines regarding manual unlocking that has been developed by the
machine builder or the user to avoid residual risks associated with manual unlocking and also routines for
resetting into normal operation afterwards.

2TLC172250M0201, rev. D 20 www.abb.com/jokabsafety
2013-08-12
Maintenances mode
If any work is to be carried out inside the hazardous area, a padlock can be put
in place in any of the two locking bolts to prevent the door from locking.
This can also act as an indication of presence within the hazardous area
(only helpful if operators are informed of the use of padlocks).
Warning! The use of padlocks is not a part of the safety function and only serves
as an additional measure to reduce the risk of entrapment.
LED indication
LED description
LED
Indication
Description
LED
1
Green
Locked (and reset)
Green-Red (flash)
Locked, no dynamic
signal in
Red
Unlocked
LED
2
Green
Reset
Green-Pause-Green
(flash)
Reset (dirt indication)
Red
Not reset
Red-Pause-Red
(flash)
Not reset (dirt indication)
Frame part –left Frame part - right