EUCHNER MGBS-P-L AR Series User manual

EN
Operating Instructions
Safety System
MGBS-P-L.-AR… Unicode/Multicode

Operating Instructions
Safety System MGBS-P-L.-AR…
2(Translation of the original operating instructions) 2527246-01-08/19
Contents
1. About this document............................................................................................. 4
1.1. Scope............................................................................................................................................4
1.2. Target group ..................................................................................................................................4
1.3. Key to symbols...............................................................................................................................4
1.4. Supplementary documents ..............................................................................................................4
2. Correct use .......................................................................................................... 5
3. Description of the safety function .......................................................................... 6
4. Exclusion of liability and warranty ......................................................................... 8
5. General safety precautions ................................................................................... 8
6. Function............................................................................................................... 9
6.1. Guard locking monitoring.................................................................................................................9
6.2. Door monitoring output (OD)............................................................................................................9
6.3. Diagnostic output (OI)......................................................................................................................9
6.4. Guard locking monitoring output (OL)................................................................................................9
6.5. Version MGBS Extended..................................................................................................................9
6.6. Guard locking for version MGBS-L1 ..................................................................................................9
6.7. Guard locking for version MGBS-L2 ................................................................................................10
6.8. Switching states ...........................................................................................................................10
7. System overview................................................................................................. 11
7.1. MGBS-P-… (optionally with escape release).....................................................................................11
7.2. MGBS-H-… ...................................................................................................................................11
7.3. AE-R-S1-...(for versions with escape release)...................................................................................11
7.4. Dimension drawing (example illustration).........................................................................................12
7.5. Drilling pattern (example illustration) ...............................................................................................13
8. Manual release................................................................................................... 14
8.1. Auxiliary release and auxiliary key release .......................................................................................14
8.1.1. Actuating auxiliary release .............................................................................................14
8.1.2. Actuating auxiliary key release .......................................................................................14
8.2. Emergency release .......................................................................................................................15
8.2.1. Actuating emergency release .........................................................................................15
8.3. Escape release (optional) ..............................................................................................................16
8.3.1. AE-R-S1 (for versions with escape release) ......................................................................16
8.3.2. Preparing AE-R-S1 .........................................................................................................17
8.4. Lockout mechanism......................................................................................................................18
8.5. Wire front release (bowden) ...........................................................................................................19
8.5.1. Laying wire front release................................................................................................19
9. Changing actuating direction of the locking module............................................. 20

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2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
10. Mounting............................................................................................................ 21
10.1. Mounting examples.......................................................................................................................21
10.2. Actuating escape release ..............................................................................................................22
11. Electrical connection .......................................................................................... 23
11.1. Notes about .........................................................................................................................24
11.2. Safety in case of faults..................................................................................................................24
11.3. Fuse protection for power supply...................................................................................................24
11.4. Requirements for connecting cables...............................................................................................25
11.5. Maximum cable lengths.................................................................................................................26
11.5.1. Determining cable lengths using the example table..........................................................27
11.6. Connector assignment locking module MGBS-…-AR-…-SAB-…
with plug connector 2 x M12 .........................................................................................................28
11.7. Connector assignment locking module MGBS-…-AR-…-SH-…
with plug connector M23 (RC18)....................................................................................................28
11.8. Connector assignment of Y-distributor............................................................................................29
11.9. Connection of a single MGBS-AR ....................................................................................................30
11.10. Connection of several MGBS-AR in a switch chain .............................................................................. 30
11.11. Notes about operation on an AR evaluation unit ..............................................................................32
11.12. Notes about operation with safe control systems ............................................................................32
11.13. Connection of guard locking control ...............................................................................................33
11.13.1. Guard locking control for variants with IMM connection ....................................................33
11.13.2. Guard locking control for variants without IMM connection................................................33
12. Setup ................................................................................................................. 34
12.1. LED displays ................................................................................................................................34
12.2. Teach-in function for handle module (only for unicode evaluation) ......................................................34
12.2.1. Teaching in handle module.............................................................................................35
12.2.2. Teach-in function with series connection, replacing and teaching in device .........................35
12.3. Functional check...........................................................................................................................36
12.3.1. Mechanical function test ................................................................................................36
12.3.2. Electrical function test...................................................................................................36
13. System status table ............................................................................................ 37
14. Technical data .................................................................................................... 38
14.1. Technical data for locking module MGBS-AR....................................................................................38
14.1.1. Typical system times.....................................................................................................39
14.2. Radio frequency approvals.............................................................................................................40
14.3. Dimension drawings, variants ........................................................................................................41
15. Ordering information and accessories................................................................. 43
16. Inspection and service ........................................................................................ 43
17. Service .............................................................................................................. 43
18. Declaration of conformity ................................................................................... 44

Operating Instructions
Safety System MGBS-P-L.-AR…
4(Translation of the original operating instructions) 2527246-01-08/19
1. About this document
1.1. Scope
These operating instructions are valid for all MGBS-P-L.-AR… from version V1.0.0. These operating instructions, the document
“Safety information and maintenance” and any enclosed data sheet form the complete user information for your device.
1.2. Target group
Design engineers and installation planners for safety devices on machines, as well as setup and servicing staff possessing
special expertise in handling safety components.
1.3. Key to symbols
Symbol/depiction Meaning
Printed document
Internet
www Document is available for download at www.euchner.com
Document on CD
MEM This section is applicable only if the memory card is used
DANGER
WARNING
CAUTION
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution slight injuries possible
NOTICE
Important!
Notice about possible device damage
Important information
Tip Useful information
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title
(document number) Contents
Safety Information and
Maintenance MGBS
(2519732)
Basic information for safe setup and service
Operating Instructions
(2527246) (this document)
Possibly enclosed data
sheet Item-specic information about deviations or additions
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the
device. The documents can be downloaded from www.euchner.com. For this purpose enter the doc.
no. in the search box.

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2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
2. Correct use
The safety system MGBS consists of a locking module MGBS-P-L.-AR… and a handle module MGBS-H… and is an interlock-
ing device with guard locking solenoid (type 4). Devices with unicode evaluation possess a high coding level, devices with
multicode evaluation possess a low coding level.
In combination with a movable guard and the machine control, this safety component prevents the guard from being opened
while a dangerous machine function is being performed.
This means:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is closed and
locked.
ÌThe guard locking must not be unlocked until the dangerous machine function has ended.
ÌClosing and locking a guard must not cause automatic starting of a dangerous machine function. A separate start com-
mand must be issued. For exceptions, refer to ENISO12100 or relevant C-standards.
Devices from this series are also suitable for process protection.
Before the device is used, a risk assessment must be performed on the machine, e.g. in accordance with the following
standards:
ÌENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
ÌENISO12100, Safety of machinery – General principles for design – Risk assessment and risk reduction
ÌIEC62061, Safety of machinery – Functional safety of safety-related electrical, electronic and programmable electronic
control systems
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
ÌENISO14119, Safety of machinery – Interlocking devices associated with guards – Principles for design and selection
ÌEN60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General requirements
The safety system MGBS is only allowed to be operated in conjunction with the intended EUCHNER handle modules and the
related connection components and accessories from EUCHNER.
On the modication of system components, EUCHNER provides no warranty for function.
AR
Locking modules with the conguration MGBS-P-….-AR can be integrated into an AR switch chain. Connection of
several devices in an AR switch chain is permitted only using devices intended for series connection in an AR switch
chain. Check the operating instructions for the related device. A maximum of 20 safety switches are allowed to be
operated in a switch chain.
Important!
ÌThe user is responsible for the proper integration of the device into a safe overall system. For this
purpose, the overall system must be validated, e.g. in accordance with ENISO13849-2.
ÌCorrect use requires observing the permissible operating parameters (see chapter 14. Technical
data on page 38).
ÌIf a data sheet is included with the product, the information on the data sheet applies.
ÌIt is only allowed to use components that are permissible in accordance with the table below.

Operating Instructions
Safety System MGBS-P-L.-AR…
6(Translation of the original operating instructions) 2527246-01-08/19
Table 1: Possible combinations for MGBS components
Locking module
Handle module
MGBS-H…
MGBS…AR
Key to symbols Combination possible
NOTICE
For information about combination with an AR evaluation unit, please refer to chapter 11.10. Connection
of several MGBS‑AR in a switch chain on page 30.
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to ENISO14119)
ÌSafety function (see chapter 6.8. Switching states on page 10):
- The safety outputs are switched off when guard locking is released (monitoring of the locking element).
- The safety outputs are switched off when the guard is open (monitoring of the door position).
- The guard locking can be activated only if the handle module is located in the switch head (faulty closure protection).
- The following additionally applies in an AR series connection: the safety outputs are switched on only when the device
receives a corresponding signal from its predecessor in the chain.
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 14. Technical data on page 38).
NOTICE
You can regard the complete AR device chain as one subsystem during calculation. The following
calculation method applies to the PFHDvalue:
#1
PFHD,1 PFHD,ext
AR-Device #1 ... n External Evaluation
(e.g. PLC)
PFHDges =∑ PFHD,k + PFHD,ext
n
k=1
#2
PFHD,2
#n
PFHD,n
Alternatively, the simplied method according to section 6.3 of EN 13849-1:2015 can be used for
calculation.

7
2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
Control of guard locking
If the device is used as guard locking for personnel protection, the control of the guard locking must be regarded as a
safety function.
The device does not feature a safety characteristic for the control of the guard locking, because the guard locking solenoid
is completely disconnected from outside the device (no control function within the device). It therefore does not contribute
to the failure probability.
The safety level for the control of the guard locking is dened only by the external control (e.g. PFHD, ext. for the standstill
monitor).
Guardlocking Device
PFHDext.
(e.g. standstill
monitor)
(locking mean)
The following applies to devices with emergency stop:
Emergency stop (emergency stop device according to EN ISO 13850)
ÌSafety function: emergency stop function
ÌSafety characteristics: B10D value (see data sheet enclosed)

Operating Instructions
Safety System MGBS-P-L.-AR…
8(Translation of the original operating instructions) 2527246-01-08/19
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety regulations are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety precautions
Locking modules fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the guard particularly
Ìafter any setup work
Ìafter the replacement of a system component
Ìafter an extended period without use
Ìafter every fault
Independent of these checks, the safe function of the guard should be checked at suitable intervals as part of the mainte-
nance schedule.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components perform
a personnel protection function.
ÌSafety components must not be bypassed, turned away, removed or otherwise rendered ineffec-
tive. On this topic pay attention in particular to the measures for reducing the possibility of bypass-
ing according to ENISO14119:2013, section 7.
ÌThe switching operation may be triggered only by handle modules designated for this purpose.
ÌPrevent bypassing by means of replacement handle modules (only for multicode evaluation). For
this purpose, restrict access to handle modules and to keys for releases, for example.
ÌMounting, electrical connection and setup only by authorized personnel possessing the following
knowledge:
- specialist knowledge in handling safety components
- knowledge about the applicable EMC regulations
- knowledge about the applicable regulations on operational safety and accident prevention.
Important!
Prior to use, read the operating instructions and keep these in a safe place. Ensure the operating
instructions are always available during mounting, setup and servicing. EUCHNER cannot provide any
warranty in relation to the readability of the CD for the storage period required. For this reason you
should archive a printed copy of the operating instructions. You can download the operating instruc-
tions from www.euchner.com.

9
2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
6. Function
The device permits the locking of movable guards.
The system consists of the following components as a minimum: coded handle module
(transponder) and locking module.
Whether the locking module learns the complete transponder code (unicode) or not
(multicode) depends on the respective version.
ÌDevices with unicode evaluation: The handle module must be assigned to the
locking module by a teach-in operation so that it is detected by the system. This
unambiguous assignment ensures a particularly high level of protection against tam-
pering. The system thus possesses a high coding level.
ÌDevices with multicode evaluation: Unlike systems with unique code detection,
on multicode devices a specic code is not requested but instead it is only checked
whether the handle module is of a type that can be detected by the system (mul-
ticode detection). There is no exact comparison of the transponder code with the
taught-in code in the locking module. The system possesses a low coding level.
The tongue on the handle module is inserted in the locking module as the guard is
closed. When the switch-on distance is reached, power is supplied to the handle module by the locking module and data
are transferred.
If a permissible code is detected, the safety outputs are switched on.
The safety outputs and the monitoring output (OL) are switched off when the guard is unlocked.
In the event of a fault in the locking module, the safety outputs are switched off and the DIA LED illuminates red. The
occurrence of faults is detected at the latest on the next demand to close the safety outputs (e.g. on starting).
6.1. Guard locking monitoring
All versions feature two safe outputs for monitoring guard locking. The safety outputs (FO1A and FO1B) are switched
off when guard locking is released.
6.2. Door monitoring output (OD)
The door monitoring output is switched on as soon as the handle module is inserted in the switch head (state: guard closed
and not locked). The door monitoring output also remains switched on when guard locking is active.
6.3. Diagnostic output (OI)
The diagnostic output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.4. Guard locking monitoring output (OL)
The guard locking monitoring output is switched on when guard locking is active.
6.5. Version MGBS Extended
Some versions contain additional controls/indicators in the housing cover. Please refer to the enclosed data sheet for
further information.
6.6. Guard locking for version MGBS-L1
(Guard locking actuated by spring force and released by power-ON)
Activating guard locking: close guard; no voltage at the solenoid.
Releasing guard locking: apply voltage to the solenoid.
The spring-operated guard locking functions in accordance with the closed-circuit current principle. If the voltage is interrupted
at the solenoid, the guard locking remains active and the guard cannot be opened directly.
Transponder coded handle
module
Locking module

Operating Instructions
Safety System MGBS-P-L.-AR…
10 (Translation of the original operating instructions) 2527246-01-08/19
Important!
If the guard is open when the power supply is interrupted and is then closed, guard locking is activated.
This can lead to persons being locked in unintentionally.
The tongue on the handle module cannot be pulled out of the locking module and the guard is locked as long as the guard
locking pin is extended.
If a voltage is applied to the guard locking solenoid, the guard locking pin is retracted and the tongue on the handle module
is released. The guard can be opened.
6.7. Guard locking for version MGBS-L2
(Guard locking actuated by power-ON and released by spring force)
Important!
Use as guard locking for personnel protection is possible only in special cases, after strict assessment
of the accident risk (see ENISO14119:2013, section 5.7.1)!
Activating guard locking: apply voltage to the solenoid.
Releasing guard locking: disconnect voltage from the solenoid.
The magnetically actuated guard locking operates in accordance with the open-circuit current principle. If the voltage is
interrupted at the solenoid, the guard locking is released and the guard can be opened directly!
The guard can be opened as long as no voltage is applied to the guard locking solenoid.
If a voltage is applied to the guard locking solenoid, the guard locking pin is held in the extended position and the guard is
locked.
6.8. Switching states
The detailed switching states for your locking module can be found in the system status table. All safety outputs, monitoring
outputs and display LEDs are described there.
Guard closed and locked
IMP
IMM
Guard closed and not locked
IMP
IMM
Guard open
IM
P
IM
M
Voltage on guard locking solenoid
MGBS-L1
off on (irrelevant)
Voltage on guard locking solenoid
MGBS-L2
on off (irrelevant)
Safety outputs FO1A and FO1B on off off
Guard locking monitoring output OL on off off
Door monitoring output OD on on off

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2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
7. System overview
7.1. MGBS-P-… (optionally with escape release)
1
3
2
Key:
1Locking module or interlocking module
2Optionally with escape release
3Optionally with Extended version
NOTICE
ÌDepending on the version, additional controls and
indicators may be integrated.
ÌDepending on the version, a mounting plate can
be included. See enclosed data sheet.
7.2. MGBS-H-…
6
1
4
4
3
5
2
Key:
1Door handle
2Marking for adjustment
3Locking pin for changing the direction of rotation of the
door handle
4Locking screws T10 for housing cover
5Bolt tongue
6Fixing screw
NOTICE
ÌDepending on the version, a mounting plate can
be included. See enclosed data sheet.
7.3. AE-R-S1-...(for versions with escape release)
4
1
2
3
A
Key:
A Snap ring
1Actuation axis
2Door handle
3Fixing screw
4Protective sleeve
NOTICE
ÌDepending on the version, a mounting plate can
be included. See enclosed data sheet.

Operating Instructions
Safety System MGBS-P-L.-AR…
12 (Translation of the original operating instructions) 2527246-01-08/19
7.4. Dimension drawing (example illustration)
107
8
40 11,5
2,4
109,4
55,5
40 56
90
5,
7.
ni
m
5,
21
.x
am
183
13044
115,5
63
42
22,262,3
110,6
min. 1
max, 6
114,2
114,3
130
40
286
min. 7,5
max.12,45
40 115,584,5
14 14
34 / 64 / 84
120
153,85
266
40
105
73,7
16,5
14,8
6,3
89,4
4,15
18
11
6,2
89,4
6,4
7,5
2475
68
6,4
62,5
114
Square drive
Prole

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2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
7.5. Drilling pattern (example illustration)
13040
40 40
15
114
286
184
1,3
ZU
CLOSED
AUF
OPEN
40
89,4
7,5
16,514,8
120
6,2
18
266
73,5
146
13,7
14,5
24
6,6
89,4
86,5 7,5
21
30
37,5
min.
6
A 1 : 2
max.
10
ZU
CLOSED
AUF
OPEN
A 1 : 2
max.
10
MGBS-P-...
AE-R-S1
MGBS-H-...

Operating Instructions
Safety System MGBS-P-L.-AR…
14 (Translation of the original operating instructions) 2527246-01-08/19
8. Manual release
Important!
S1
S2
S3
No further release functions can be retrotted on Extended variants with control elements in position
1 (S1) and position 2 (S2).
Some situations require the guard locking to be released manually (e.g. malfunctions or an emergency). A function test
should be performed after release.
More information on this topic can be found in the standard ENISO14119:2013, section 5.7.5.1. The device can feature
the following release functions:
8.1. Auxiliary release and auxiliary key release
In the event of malfunctions, the guard locking can be released with the auxiliary release irrespective of the state of the
solenoid.
The safety outputs are switched off when the auxiliary release is actuated. Use the safety outputs to generate a stop
command.
The monitoring output OL is switched off; OD can assume an undened state. Open the guard and close it again after re-
setting the auxiliary release. The device will then operate normally again.
8.1.1. Actuating auxiliary release
1. Unscrew locking screw.
2. Using a screwdriver, turn the auxiliary release to in the direction of the arrow.
¨Guard locking is released.
Important!
ÌThe tongue on the handle module must not be under tensile stress
during manual release.
ÌAfter use, reset the auxiliary release and screw in and seal the locking
screw (e.g. with sealing lacquer).
ÌThe auxiliary key release must not be used to lock the locking module
during servicing to prevent activation of guard locking, for example.
ÌLoss of the release function due to mounting errors or damage during
mounting.
ÌCheck the release function every time after mounting.
ÌPlease observe the notes on any enclosed data sheets.
8.1.2. Actuating auxiliary key release
On devices with auxiliary key release (can be retrotted), simply turn the key to release. Function
as for auxiliary release. For mounting, see the auxiliary key release supplement.
Auxiliary
release
Locking
screw

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2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
8.2. Emergency release
Permits opening of a locked guard from outside the danger zone without tools. For mounting, see the mounting supplement.
Important!
ÌIt must be possible to operate the emergency release manually from outside the protected area
without tools.
ÌThe emergency release must possess a marking indicating that it may be used only in an emergen-
cy.
ÌThe handle module must not be under tensile stress during manual release.
ÌThe emergency release must be sealed or the misuse of the release function must be prevented in
the control system.
ÌThe release function meets all other requirements from ENISO14119.
ÌThe emergency release meets the requirements of Category B according to
ENISO13849-1:2015.
ÌLoss of the release function due to mounting errors or damage during mounting.
ÌCheck the release function every time after mounting.
ÌPlease observe the notes on any enclosed data sheets.
8.2.1. Actuating emergency release
ÌTurn emergency release clockwise until it clicks into place.
¨Guard locking is released.
To reset, press the snap-in bolt inward using a small screwdriver or similar tool and turn the
emergency release back.
The safety outputs are switched off when the emergency release is actuated. Use the safety
outputs to generate a stop command.
The monitoring output OL is switched off; OD can assume an undened state. Open the guard and
close it again after resetting the emergency release. The device will then operate normally again.
Snap-in bolt

Operating Instructions
Safety System MGBS-P-L.-AR…
16 (Translation of the original operating instructions) 2527246-01-08/19
8.3. Escape release (optional)
8.3.1. AE-R-S1 (for versions with escape release)
+ +
MGBS-H...-L-...
AE-R-S1
MGBS-H...-R-...

17
2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
8.3.2. Preparing AE-R-S1
Prole width Length required for actuation
axis
Which EUCHNER parts are required? Necessary work steps
Without plates With mounting
plates
(4mm each)
D D+9 D+17
30mm 39mm 47mm Standard inner door handle
with 107mm axis (order no.158322)
Shorten to required length
40mm 49mm 57mm Standard inner door handle
with 107mm axis (order no.158322)
If necessary,
extended actuation axis (order no. 106761)
Without mounting plates:
None
With mounting plates:
Use extended actuation axis and protective sleeve and
shorten to required length
45mm 54mm 62mm Standard inner door handle
with 107mm axis (order no.158322)
and
extended actuation axis (order no. 106761)
Use extended actuation axis and protective sleeve and
shorten to required length
50mm 59mm 67mm Standard inner door handle
with 107mm axis (order no.158322)
and
extended actuation axis (order no. 106761)
Use extended actuation axis and protective sleeve and
shorten to required length
1Insert actuation axis.
The snap ring A must be in contact
with the inner door handle B.
2Fit door handle.
3Tighten xing screw to 2Nm.
4Fit protective sleeve.
4
1
2
3
A
182
D - 1 *
107
39,5
D
11,5 55,5
55,5
M4
250
D + 9
Example without mounting plates
Standard
protective
sleeve
Extended
protective
sleeve
Standard
actuation axis
Extended
actuation axis
Escape release
Handle module
+4mm per mounting plate

Operating Instructions
Safety System MGBS-P-L.-AR…
18 (Translation of the original operating instructions) 2527246-01-08/19
8.4. Lockout mechanism
The lockout mechanism can be secured with padlocks (see Figure 1). This is intended to prevent people from being locked
in unintentionally. The lockout mechanism does not fulll any safety function.
¨To pivot out, press the grooved part (possible only with bolt tongue retracted).
2
Key:
1Automatically extending lockout mechanism (optional)
Padlock ∅min. 6mm, ∅max. 10 mm
Notice:
You can t up to three locks ∅8mm per lockout mechanism.
Figure 1: Lockout mechanism secured with padlock

19
2527246-01-08/19 (Translation of the original operating instructions)
Operating Instructions
Safety System MGBS-P-L.-AR…
EN
8.5. Wire front release (bowden)
Release via a pull wire. Depending on the type of attachment, the wire front release can be used as an emergency release
or escape release.
The following applies to non-latching wire front releases.
If the release is to be used as an emergency release, one of the following measures must be
taken (see EN ISO 14119:2013, section 5.7.5.3):
ÌInstall the release so that it can be reset only with the aid of a tool.
ÌAlternatively, the reset can be undertaken at the control system level. E.g. by means of a
plausibility check (status of the safety outputs does not match the guard locking activation
signal).
The emergency-release specications in chapter 8.2 on Page 15 apply irrespective of this
information.
Important!
ÌThe wire front release meets the requirements of Category B according to ENISO13849-1:2015.
ÌThe correct function depends on the laying of the pull wire and on the attachment of the pull han-
dle, and this is the responsibility of the plant manufacturer.
ÌThe handle module must not be under tensile stress during manual release.
8.5.1. Laying wire front release
Important!
ÌLoss of the release function due to mounting errors, damage or wear.
ÌCheck the release function every time after mounting.
ÌWhen routing the wire front release, ensure that it operates smoothly.
ÌObserve the min. bending radius (100mm) and minimize the number of bends.
ÌThe locking module must not be opened.
ÌObserve the notes on the enclosed data sheets.

Operating Instructions
Safety System MGBS-P-L.-AR…
20 (Translation of the original operating instructions) 2527246-01-08/19
9. Changing actuating direction of the locking module
NOTICE
ÌPlease read the operating instructions of the device before use!
ÌIf a data sheet is included with the product, the information on the data sheet applies.
ÌWhen using sliding doors, you are recommended to use the door knob AY-DKB…
ÌWhen changing the actuating direction please use a screwdriver (TX20).
ÌThe actuating direction of handle module MGBS-H-… cannot be changed.
1,8 Nm
1,8 Nm
MGBS-H-...-R-...
MGBS-H-...-L-...