Allen-Bradley TLSZR/L-GD User manual

Installation Instructions
Original Instructions
TLSZR/L-GD2 Guard Locking Switch
IMPORTANT Do not attempt to install this device unless the installation instructions have been studied and
understood. This installation instruction sheet is available in some languages at
www.rockwellautomation.com/literature.
Select publication language and type “TLSZR/L-GD2” in the search field.
IMPORTANT Ne pas tenter pas d'installer ce dispositif sans avoir étudié et compris les instructions
d'installation. Cette notice d'installation est disponible dans certaines langues sur le site
www.rockwellautomation.com/literature. Sélectionner la langue de la publication et saisir «
TLSZR/L-GD2 » dans le champ de recherche.
WICHTIG Versuchen Sie nicht, dieses Gerät zu installieren, bevor Sie die Installationsanleitung gelesen
und verstanden haben. Diese Installationsanleitung steht in mehreren Sprachen unter der
folgenden Adresse zur Verfügung:www.rockwellautomation.com/literature. Wählen Sie unter
"Publication Language" die entsprechende Sprache aus und geben Sie "TLSZR/L-GD2" in das
Suchfeld ein.
IMPORTANTE Non installare questo dispositivo senza prima avere letto e compreso le istruzioni per
l'installazione. Queste istruzioni per l'installazione sono disponibili per alcune lingue sul sito
www.rockwellautomation.com/literature. Selezionare la lingua della pubblicazione e digitare
"TLSZR/L-GD2" nel campo di ricerca.
IMPORTANTE Não instale esse dispositivo sem estudar e compreender as instruções de instalação. Essa folha
de instruções de instalação está disponível em algumas línguas em
www.rockwellautomation.com/literature. Selecione a língua de publicação e escreva "TLSZR/
L-GD2" no campo de pesquisa.
IMPORTANTE No instale este dispositivo sin estudiar y entender las instrucciones de instalación. Esta hoja de
instrucciones de instalación está disponible en algunos idiomas en
www.rockwellautomation.com/literature. Seleccione el idioma de publicación e ingrese
"TLSZR/L-GD2" en el campo de búsqueda.
Viktigt Läs monteringsanvisningen innan försök att installera enheten görs. Detta instruktionsblad
finns tillgängligt på olika språk på www.rockwellautomation.com/literature. Välj
publikationsspråk och ange typ: "TLSZR / L-GD2" i sökfältet.

2Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Table of Contents
Installation Instructions............................................................................................................................3
Technical Specifications ...........................................................................................................................4
OSSD Outputs and Pulse Testing ..................................................................................................5
Dimensions [mm (in.)]...............................................................................................................................6
Mounting Information [mm (in.)]..........................................................................................................7
Allowable Approach Directions.....................................................................................................8
Clearance in Closed Position [mm (in)] .......................................................................................8
Auxiliary/Manual Release [mm (in.)].............................................................................................8
Minimum Operating Radius [mm (in.)]........................................................................................9
Manual Override Key for Power-to-Release Version ..............................................................9
Mounting Restrictions.......................................................................................................................9
Connections...............................................................................................................................................10
Status/Diagnostic LED Indicator......................................................................................................... 10
Commissioning......................................................................................................................................... 11
“Multi-Time” Learn Process...........................................................................................................11
“One-Time” Learn Process............................................................................................................. 12
Status/Diagnostic LED Error Codes During the Learning Process.................................. 12
Functional Testing ........................................................................................................................... 12
Wiring Diagrams....................................................................................................................................... 14
Troubleshooting Series Circuit....................................................................................................14
Unit Response Time ........................................................................................................................15
Application Wiring Example ........................................................................................................16
Recommended Relays............................................................................................................................17
Maintenance.............................................................................................................................................. 17
Declaration of Conformity....................................................................................................................17

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 3
TLSZR/L-GD2 Guard Locking Switch
Installation Instructions
Installation must be in accordance with the following steps and stated specifications and
conducted by competent personnel. The unit is not to be used as a mechanical stop. Guard stops
and guides must be fitted. Adherence to the recommended maintenance instructions forms part
of the warranty.
This device is intended to be part of the safety-related control system of a machine. Before
installation, a risk assessment should be performed to determine whether the specifications of
this device are suitable for all foreseeable operational and environmental characteristics of the
machine to which it is to be fitted. See Technical Specifications for certification information and
ratings.
Use nonremovable screws, bolts, or nuts to mount the switch and actuators. Do not over torque
the mounting hardware.
For use with flexible actuator only, 440G-A27143.
TLS-Z guard locking switches are classified according to ISO 14119 as Type 4 switching
devices.The RFID targets are classified as having a high level of coding.
Measures are to be taken to minimize the need to defeat and to manage the use and availability of
spare RFID targets.
IMPORTANT SAVE THESE INSTRUCTIONS FOR FUTURE USE
ATTENTION: Guard locking switches that are activated by the power to lock principle,
440G-TZS21UPLH, must only be used after a risk assessment has shown that the use of a power to
release principle, 440G-TZSPRH, is inappropriate, since the guard can be immediately opened
after a loss of the power supply or upon activation of the unlocking signal.
Target
Actuator
TLSZR/L-GD2
Switch
Target
Alignment
Marks

4Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Technical Specifications
Safety Ratings
Standards IEC 60947-5-3, IEC 60947-5-1, IEC 61508, EN ISO 13849-1, ISO 14119
Safety Classification and Functional Safety Data
Safety Classification of the guard door position and lock monitoring function is
PLe, Category 4 to IEC 13949-1, IEC 61508.
For details, see the Rockwell Automation® Functional Safety Data Sheet:
http://literature.rockwellautomation.com/idc/groups/literature/documents/sr/
safety-sr001_-en-e.pdf
Certifications CE Marked for all applicable EU directives, cULus (UL 508), and TÜV.
Operating Characteristics
TLSZR-GD2 Power to release
TLSZL-GD2 Power to lock
Assured Locking Distance [mm (in.)] Maximum target distance: 13 (0.51) Maximum clearance between actuator base and switch in the door-closed
position: 5 mm (0.2 in.) (See “Clearance in Closed Position [mm (in)]” on page 8)
Torque for M5 Mounting 1.4 Nm (12.39 lb-in.)
Torque for Cover Mounting 1.2 Nm (10.62 lb-in.)
Locking Force Fmax Plastic pins: 1950 N (488 lb) Steel bolts: 2600 N (585 lb)
Locking Force Fzh (with EN/ISO 14119) Plastic pins: 1500 N (337 lb) Steel bolts: 2000 N (450 lb)
Maximum Output Current (all outputs) 200 mA
Current Consumption - solenoid not energized (no load supply
current) 50 mA
Current Consumption - solenoid energized (no load supply
current) 120 mA (260 mA inrush)
Solenoid Duty Cycle 100%
Off-State Current < 0.5 mA DC
Maximum Number of Switches (connected in series) Unlimited. See “Unit Response Time” on page 15.
Operating Voltage Ue 24V DC +10% / -15%
Frequency of Operating Cycle 1 Hz maximum
Actuation Speed, Max. 160 mm (6.29 in.) per second
Actuation Speed, Min. 100 mm (3.94 in.) per minute
Response Time (Off) 75 ms first switch, 25 ms additional for each switch
Utilization Category (IEC 60947-5-2) DC-13 24V 200 mA
Impulse Withstand Voltage Uimp 250V
Pollution Degree 3
Protection Class 2
Mechanical Life 1 x 106 cycles
Environmental
Operating Temperature [C (F)] -10°…60° C (+14°…140° F)
Operating Humidity 5%…95% relative
Risk Time If the RFID door target moves outside of the operating distance, the safety outputs
are deactivated after a maximum of 60 ms
Rated Insulation Voltage Ui 500V

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 5
TLSZR/L-GD2 Guard Locking Switch
The device can be used under normal service conditions. Maximum altitude up to 2000 m
(6561.66 ft).
Voltage drop Vd 2V ma ximum
OSSD Outputs and Pulse Testing
The safety inputs are Safety A+ and Safety B+.
The OSSD outputs are Safety A and Safety B with the safe state defined as 0V (guard door open
or not locked).
The safety outputs use test pulses to detect short-circuit and cross-wire short detection. The
cross-short pulses are asynchronous of duration 0.1 ms repeating every 11 s and the short-circuit
pulses are synchronous of duration of 0.5 ms repeating every 11 s. The connected control system
must be tolerant of these pulses.
Enclosure Ingress Rating NEMA 3, 4X, 12, 13, IP66, IP67, IP69K
Shock and Vibration IEC 68-2-27 30 g, 11 ms/IEC 68-2-6 10…55Hz
Radio Frequency IEC 61000-4-3
IEC 61000-4-6
General
Housing Material UL approved glass filled PBT
Actuator Material Stainless Steel
Target Material UL approved glass filled PBT
Connection M12 8-pin connector
Protection (the outputs are short-circuit protected)
Short-circuit Protection Incorporated
Current Limitation Incorporated
Overload Protection Incorporated
False Pulse Protection Incorporated
Transient Noise Protection Incorporated
Reverse Polarity Protection Incorporated
Overvoltage Protection Incorporated
Thermal Shutdown/Restart Incorporated
Outputs (Guard door closed and locked)
Outputs Description Status
Safety 2 x PNP, 0.2 A max. ON (+24V DC)
Auxiliary 1 x PNP, 0.2 A max. OFF (0V DC)
Environmental

6Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Dimensions [mm (in.)]
86 (3.39)
57 (2.24)
3 (0.12)
3 (0.12)
6.5 (0.26)
17
(0.67)
21 (0.83)
14.5 (0.57)
52.5 (2.07)
31.5 (1.24)
60.5 (2.38)
67.5 (2.66)
6.5 (0.26)
5 (0.2)
M5 x 4
126 (4.96)
105 (4.13)
14 (0.55)
22 (0.87)
27 (1.06)
39 (1.54)
9 (0.35)
14 (0.55)
33 (1.3)
6.5 (0.26)
25.5 (1)
20.5 (0.81)
5 (0.2)
5.5 (0.22)
21
(0.83)
17 (0.67)
43 (1.69) 6 (0.24)
5 (0.2)
73 (2.87)
4 (0.16)
Status/
Diagnostic
LED
Target Alignment Mark
14
(0.55)
2.2 (0.09)
24
(0.94)
4.2 (0.17)
19.2 (0.76)
M12
18
(0.71)
20
(0.79)
8
(0.31)
40 (1.57)
31 (4.22)
6.8
(0.27)
4 x 5.5 (0.22)
2 x M3
19
(0.75)
13
(0.51)
51
(2.0)
52 (2.05)
Actuator
Use with flexible actuator only:
23.2 (0.91)
11.9
(0.47)
19
(0.75)
440G-ATZAE-
xxxx
29.3 (1.15)
7
(0.28)
20
(0.79)
M5
5.5
(0.22)
Target
Connector location and
dimensions
Do not use cable gland knockouts, two places

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 7
TLSZR/L-GD2 Guard Locking Switch
Mounting Information [mm (in.)]
1.2 N•m (10.62 lb•in.)
2 x M5
1.4 N•m (12.39 lb•in.)
3 x M5
15 (0.59)
Steel bolts
Plastic pins
Fzh = 2000 N (450 lb)
Fzh = 1500 N (337 lb)
5 (0.20)
dia.
2 x M5
1.4 N•m
(12.39 lb•in.)
1.2 N•m (10.62 lb•in.)
5.5 (0.22)
6 (0.24)
20
(0.79)
86.5
(3.4)
35
(1.38)
40
(1.57)
13 (0.51) 19
(0.75)
6 (0.24)
7 (0.28)
180
Target
Actuator

8Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Allowable Approach Directions
Clearance in Closed Position [mm (in)]
(and Maximum Actuator Insertion Distance for Locking)
Auxiliary/Manual Release [mm (in.)]
A manual release is possible by removing the secure TorX screws and pressing the internal
mechanism.
The actuator and target should always be
mounted as “close coupled” and can approach
the switch in any of the three entry slot
positions shown.
Approach from the underside is not allowed.
2...5 (0.08...0.20)
Provide a separate mechanical stop to protect the
switch.
Minimum clearance: 2 (0.08).
Maximum assured locking distance: 5 (0.20).
IMPORTANT Do not use the switch as a guard stop.
T20
≤ 2.5 (0.098) dia.
1
3
2
2
If power is supplied to the switch and the
switch is in the locked state, operation of
the auxiliary release will cause the switch to
enter a fault condition (blinking red
LED).
To reset the switch, cycle the power.

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 9
TLSZR/L-GD2 Guard Locking Switch
Minimum Operating Radius [mm (in.)]
Minimum operating radius is for all planes of approach of the actuator key, both along the length
and perpendicular to the key. Use the two adjusting setscrews on the actuator to optimize the key
angle.
Manual Override Key for Power-to-Release Version
The cover with manual override key is intended for use with a power-to-release version
TLSZR-GD2. It provides an auxiliary release function for use when power is not available to
achieve automatic/electrical interlocking.
Mounting Restrictions
If a pair of TLS-Z switches are mounted close to each other, the two inductive fields will interact
causing crosstalk, which will result in nuisance faults and false operation.
An absolute minimum of 200 mm (8 in.) must be used to help ensure correct operation.
The above applies if a TLS-Z switch is mounted close to the 440G-LZ guard locking and the
440N-Z SensaGuard™ switches.
80 (3.19) 80 (3.19)80 (3.19)80 (3.19)
90°
1.2 N•m (10.62 lb•in)
1
2
90°

10 Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
For Learn Process LED error codes, see page 12.
Connections
8-Pin Micro (M12)
Color Function Pin
8-Pin Cordset
889D-F8AB-*
or cable version
White Aux 1
Brown 24V DC+ 2
Green Lock 3
Yellow Safety B+ OSSD Input 4
Grey Safety A OSSD Output 5
Pink Safety B OSSD Output 6
Blue Gnd / 0V 7
Red Safety A+ OSSD Input 8
* Replace symbol with 2 (2 m), 5 (5 m), or 10 (10 m) for standard cable lengths.
Status/Diagnostic LED Indicator
Operating
Status/Diagnostic LED State Meaning
Solid Green Door/Guard closed and locked, safety outputs active.
Solid Red Door/Guard not locked, safety outputs off.
Blinking Red Unit failure. See Troubleshooting, below.
Blinking Green Door/Guard closed and locked, no input signal.
Troubleshooting
Status/Diagnostic LED State Status Troubleshooting
Off Not powered N/A
Solid Green OSSD on N/A
Solid Red OSSD not active N/A
Blinking Green Power up test or
Safety inputs not present Check 24V DC or OSSD inputs (yellow and red wire)
Blinking Red 1 Hz Flash: Recoverable fault
4 Hz Flash: Non-recoverable fault
Recoverable fault: Check OSSD. Outputs are not shorted to GND,
24VDC, or each other. Cycle power.
Non-recoverable fault: Cycle power.
2 24V DC+
1 Aux
7 0V
6 Safety B
3 Lock Command
8 Safety A+
4 Safety B+
5 Safety A

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 11
TLSZR/L-GD2 Guard Locking Switch
In the event of an internal fault, the switch will disable the OSSD outputs Safety A and Safety B
to the safe state 0V and the diagnostic output LED will flash red at 1 Hz or 4 Hz, depending on
the fault.
Commissioning
Before use, the switch must first “learn” a new RFID door target. This is not done at the factory,
as there are two options:
•“Multi-Time” learn: the switch can learn up to eight targets consecutively
•“One-Time” learn: the switch can learn just one target, for life, non-reversible*
* “One-Time” learn can be invoked at any time, not just at commissioning. For example,
the switch could “Multi-Time” learn consecutively four different targets, and then
complete a “One-Time” learn that would prevent it from learning any more targets.
“Multi-Time” Learn Process
Learning the first “Multi-Time” target
• Connect the switch to 24V DC (see wiring diagrams on pages 14 through 16).
The Status/Diagnostic LED will blink the number of times a new target may be learned (eight
times when new), and then repeat, indicating that the switch has not yet learned a target.
• The switch will automatically start the learning process as soon as a target and actuator are
placed into the door-closed, locked position of the switch
The learning sequence as indicated by Status/Diagnostic LED:
• Target present: Blinking Green, 1Hz rate
• Verifying target: Blinking Green/Red, 1Hz rate (15 s)
• Programming switch: Blinking Green/Red, 4 Hz rate (15 s)
• Programming finalizing: Blinking Green (number of learns left, 15 sec)
• Ready state (learn is complete): Solid Green (TLSZR), Solid Red (TLSZL)
Learning additional new “Multi-Time” targets
Mount the new target to the door and repeat the above process, introducing the target and
actuator to the switch as described above. During programming finalizing, the LED will blink
Green the number of learns left.
IMPORTANT During the learning process the target and actuator must always be inserted or withdrawn
from the switch together in their normal mounting configuration. If the target is introduced or
withdrawn without the actuator, or the actuator is inserted without the target present, then a
non-recoverable fault condition may occur (requiring a power off-on cycle).
IMPORTANT Leave the target/actuator in the door-closed position during the learning process. If they are
removed during the learning process, the ability to learn an additional target will be disabled.

12 Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
“One-Time” Learn Process
• Proceed as the “Multi-Time” learn process above except that at the programming finalizing
stage withdraw the target and actuator away from the switch until the LED turns to solid Red,
then straightaway replace the target and actuator back to the switch. This action must be
completed within 15s *.
• The LED blinks and then turns solid to indicate that learn is complete:
TLSZR: Solid Green
TLSZL: Solid Red
* For power-to-unlock switches, in order to be able to withdraw the target and actuator
away from the switch as described above it will be necessary to execute a manual release.
For operating Status/Diagnostic LED codes, see page 10.
Functional Testing
A manual functional electric test must be made:
• After installation
• After any maintenance or change of component
• If the guard is used infrequently
– Less than once per month for SIL 3/PLe
– Less than once per year for SIL 2/PLd
1. Ensure guard door is open.
2. Connect the 24V DC power to pin 2. The switch conducts a self-testing regime at the
end of which the diagnostic LED shows solid red.
3. Test to ensure the machine cannot start.
4. Ensure the lock control at pin 3 is set to 0V for PTR and 24V for PTL types.
5. Test again to ensure the machine cannot start.
Status/Diagnostic LED Error Codes During the Learn Process
These code sequences persist until a power off-on cycle is undertaken.
Status/Diagnostic LED - Flashes (4 Hz) Error Code
Red-Red-Red-Green-Green Target already learned
Red-Red-Red-Green-Green-Green Bad RFID; target moved out of range
Red-Red-Red-Green-Green-Green-Green Exceeded learning eight targets
Red-Red-Red-Green-Green-Green-Green-Green Unit locked to One-Time learn; cannot learn another target
ATTENTION: During the functional test, ensure that there are no persons in the danger area and
that the machine startup will cause no hazard.

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 13
TLSZR/L-GD2 Guard Locking Switch
6. Close the guard door and then ensure the guard is mechanically locked and the
diagnostic LED shows solid green.
7. Test to ensure the machine can now start.
8. Change the lock control at pin 3 to 24V for PTR and 0V for PTL types.
9. Ensure the machine stops, the guard door is mechanically unlocked and the machine
cannot restart.

14 Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Wiring Diagrams
Troubleshooting Series Circuit


Target/Actuator
1
Target/Actuator
2
Target/Actuator
3
Target/Actuator
4
Target/Actuator
5
Switch 1 Switch 2 Switch 3 Switch 4 Switch 5
RTN
24V DC
Power
Supply +24
1606-
XL120D
Green
Blue
Pink
Grey
Brown
Red
Yellow
White
+24V +24V
Green
Blue
Pink
Grey
Brown
Red
Yellow
White
+24V +24V
Green
Blue
Pink
Grey
Brown
Red
Yellow
White
+0V +0V
Green
Blue
Pink
Grey
Brown
Red
Yellow
White
+0V +0V
Green
Blue
Pink
Grey
Brown
Red
Yellow
White
+0V +0V
Recoverable
fault Actuator 1 is in sensing range
and locked. Switch 1 is funtioning properly. OSSDs are energized to 24V. Green LED is ON.
Actuator 2 is in sensing range and locked. Switch 2 is funtioning properly. OSSDs are energized to 24V. Green LED is ON.
Actuator 3 is in sensing range and locked. Switch 3 has a fault. See Diagnostic table. Red LED is flashin .
Actuator 4 is in sensing range and locked. Switch 4 is functioning properly Series inputs are 0V. OSSDs are de-energized to 0V. Green LED is flashing to indicate series inputs are not 24V.
Actuator 5 is in sensing range and locked. Switch 5 is functioning properly Series inputs are 0V. OSSDs are de-energized to 0V. Green LED is flashing to indicate series inputs are not 24V.
OSSDs are OFF

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 15
TLSZR/L-GD2 Guard Locking Switch
Unit Response Time
(Does not include relay response time)
Target/Actuator 1
Target/Actuator 2
Target/Actuator 3
Switch 1
Switch 2
Switch 3
RTN
24V DC
Power
Supply +24
1606-
XL120D
Green
Blue
Pink
Grey
Brown
Red
Yel
White
A2
440R-N23132
Initial conditions: All switches are locked
Switch 1 receives unlock command (guard door can then be opened)
Lock/unlock
command
Switch 2 drops the 24 volts (red and yellow) from Switch 1 OSSD outputs Green LED flashe
Switch 3 drops the 24 volts (red and yellow) from Switch 3 OSSD outputs Green LED flashe
Pink
Grey
Brown
Red
Yel
White
Green
Blue
Pink
Grey
Brown
Red
Yel
White
Green
Blue
S11 41332313S12S52
S21 S22 42342414A1S34
125 ms100 ms75 ms0 ms
650 ms625 ms600 ms0 ms
Switch 1 guard door is closed
Switch 1 OSSD outputs are energized
Switch 2 OSSD inputs (red and yellow) transition to 24V DC from Switch 1 OSSD outputs Switch 2 OSSD outputs are energized
Switch 3 OSSD inputs (red and yellow) transition to @$V DC from Switch 2 OSSD outputs Switch 3 OSSD outputs are energized

16 Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Application Wiring Example
A1 A2
DI
S11
S12
S21
S22
S34
13
23
14
24
0V*
Reset
E-Stop
K1
K2
L11
S32
S42
L12
012
3
4
5
6
7
8
LOGIC
A1 A2
L11
L12
EMD
X32
*Set for 30 second
OFF Delay (adjustable)
01
2
3
4
5
6
7
8
9
RANGE
1
2
3
4
5
6
7
8
9
10
TIME
*
*
Gry
Pnk
Brn
Yel
Red
Blu
Wht
Aux.
TLSZR-GD2
DI = 440R-D22R2
EMD =440R-EM4R2D
The safety function initiated by the E-Stop meets the safety performance
requirements of SIL CL3 per IEC 62061:2015 for Category 0 and has a
Category 4 structure that can be used in systems requiring Performance
Levels up to PLe per ISO 13849-1:2008.
24V* * Class 2 Power Source
M
K1
K2
External Switched
Stop/Start Circuit
L1 L2 L3
K3
Gate Release
Grn
K3
17
18
K1 K2
Ratings

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 17
TLSZR/L-GD2 Guard Locking Switch
Recommended Relays
Guardmaster® safety relay family, (440R-D22R2, 440R-D22S2, 440R-S12R2, 440R-S13R2,
440R-GL4S2P, 440R-GL4S2T), MSR 57, MSR126, MSR127, MSR131, MSR138, MSR211,
MSR320, SmartGuard™, Safety PLC I/O
Maintenance
Every week: Check for signs of abuse or tampering. Check for missing screws, particularly for
the manual release, which may indicate abuse or tampering. Of particular importance is damage
which causes loss of sealing at the lid or conduit entry.
At least every six months: Isolate all power. Remove the lid and clean out any accumulation of
fine dirt, etc. Check for signs of wear or damage, for example, cam assembly wear. Replace the
cover and tighten to specified settings. Re-instate the power and conduct a functional test. Re-
apply tamper evident varnish or similar compound to fixings.
Repair: If there is any malfunction or damage, no attempts at repair should be made. The unit
should be replaced before machine operation is allowed. DO NOT DISMANTLE THE UNIT.
Declaration of Conformity
This product conforms to the Essential Health and Safety Requirements (EHSRs) of the
relevant European Directives.
Copies of this certification are available at http://www.rockwellautomation.com/certification/
overview.page
Check the machine is isolated and stopped
whenever the interlocked guard door is
open.
IMPORTANT: After installation and
commissioning, the actuator, switch and
switch lid fixing screws should be coated
with tamper evident varnish or similar
compound.

18 Rockwell Automation Publication 440G-IN007B-EN-P - September 2016
TLSZR/L-GD2 Guard Locking Switch
Notes:

Rockwell Automation Publication 440G-IN007B-EN-P - September 2016 19
TLSZR/L-GD2 Guard Locking Switch
Notes:

Allen-Bradley, Rockwell Automation, and Rockwell Software are trademarks of Rockwell Automation, Inc.
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Publication 440G-IN007B-EN-P - September 2016 PN-144094
Supersedes Publication 440G-IN007A-EN-P - July 2012 10000302608 Ver 01
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