EUCHNER MGB2-I MLI Series User manual

EN
Operating Instructions
Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
from V1.00.0

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
2(Translation of the original operating instructions) 2500234-04-09/20
Contents
1. About this document............................................................................................. 4
1.1. Scope............................................................................................................................................4
1.1.1. Notes on older product versions ......................................................................................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 .......................................................................... 7
4. Exclusion of liability and warranty ......................................................................... 9
5. General safety precautions ................................................................................... 9
6. Function............................................................................................................. 10
6.1. Interlocking module MGB2-I... (or a correspondingly congured MGB2-L2).........................................10
6.2. Locking module MGB2-L................................................................................................................10
6.2.1. Guard locking for version MGB2-L1 ................................................................................10
6.2.2. Guard locking for version MGB2-L2 ................................................................................11
6.3. Control of guard locking MGB2-L1 and MGB2-L2 .............................................................................11
7. System overview................................................................................................. 12
7.1. Interlocking/locking module MGB2-I../MGB2-L.................................................................................12
7.2. Handle module MGB2-H-….............................................................................................................13
7.3. Escape release MGB-E-... (optional) ................................................................................................13
7.4. Dimension drawings......................................................................................................................14
7.4.1. Interlocking/locking module MGB2-I.../MGB2-L................................................................14
7.4.2. Handle module MGB2-H.................................................................................................14
7.4.3. Escape release MGB-E-... ..............................................................................................15
7.4.4. Assembly of MGB2-L, MGB2-H and MGB-E (example on prole 40x40)...............................16
7.4.5. Drilling pattern, complete system with bus module MBM and optional extension module MCM.
17
7.4.6. Drilling pattern, escape release MGB-E ...........................................................................18
8. Manual release................................................................................................... 19
8.1. Auxiliary release............................................................................................................................19
8.2. Lockout mechanism......................................................................................................................20
8.3. Escape release (optional) ..............................................................................................................20
8.3.1. Preparing escape release ..............................................................................................21
9. Mounting............................................................................................................ 22
9.1. Replacing modules........................................................................................................................23
9.2. Mounting submodules ...................................................................................................................23
9.3. Replacing submodules ..................................................................................................................24
9.3.1. Replacing faulty submodule ...........................................................................................24
9.3.2. Replacing submodule with a submodule with a different function (changing conguration) ...24
9.3.3. Fitting and removing lenses and labels for controls and indicators ....................................25

3
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
10. Changing the door hinge position ........................................................................ 26
10.1. Changing the interlocking/locking module to a different door hinge position ......................................26
10.2. Changing actuating direction of the handle module..........................................................................26
11. Protection against environmental effects............................................................. 28
12. Controls and indicators....................................................................................... 28
13. Electrical connection .......................................................................................... 29
13.1. Connecting modules .....................................................................................................................29
13.2. Using submodules ........................................................................................................................30
14. Data blocks for interlocking/locking module MGB2-I or MGB2-L .......................... 31
15. Setup ................................................................................................................. 31
15.1. Teach-in operation (only for MGB2 unicode).....................................................................................31
15.2. Mechanical function test................................................................................................................32
15.3. Electrical function test...................................................................................................................32
15.4. Replacing a module .....................................................................................................................32
16. System status table, module LEDs....................................................................... 33
16.1. System indications if there are faults (module LEDs)........................................................................33
16.2. System indications during setup, teach-in and normal operation .......................................................34
17. System status table (slot LEDs) ........................................................................... 35
18. Technical data .................................................................................................... 36
18.1. Radio frequency approvals.............................................................................................................37
19. Troubleshooting and assistance........................................................................... 38
19.1. Resetting general faults.................................................................................................................38
19.2. Fault on actuating the escape release ............................................................................................38
19.3. Resetting system to factory settings ..............................................................................................38
20. Service .............................................................................................................. 39
21. Inspection and service ........................................................................................ 39
22. Declaration of conformity ................................................................................... 40

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
4(Translation of the original operating instructions) 2500234-04-09/20
1. About this document
1.1. Scope
These operating instructions are valid for all Interlocking/Locking Modules MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular).
These operating instructions, the document Safety information, the operating instructions for the bus module MBM and any
enclosed data sheet form the complete user information for your device.
Series Guard locking types System families Product versions
MGB2
I (without guard locking) …-MLI-…
(operation on a bus module MBM)
from V1.00.0
L1 (guard locking by spring force) from V1.00.0
L2 (guard locking by solenoid force) from V1.00.0
1.1.1. Notes on older product versions
Products with lower product versions or without a version number are not described by these operating instructions. Please
contact our support team in this case.
1.2. Target group
Design engineers and installation planners for safety systems on machines, as well as setup and servicing staff possessing
special expertise in handling safety components as well as expertise in the installation, setup, programming and diagnostics
of programmable logic controllers (PLCs) and bus systems.
1.3. Key to symbols
Symbol/depiction Meaning
Printed document
Internet
www Document is available for download at www.EUCHNER.com
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
(2525460) Basic safety information
Operating Instructions
Interlocking/Locking
Modules MGB2-L..-MLI
(2500234)
(this document)
Internet
www
Operating Instructions Bus
Modules MBM-..-MLI
(2500235)
Conguration manual for the connection to the bus and data evaluation in MLI systems
Internet
www
Possibly enclosed data
sheets Article-specic information with deviations or additions to the operating instructions as well as data sheets for submodules
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.

5
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
2. Correct use
The Modular devices described here can be operated only with a suitable bus module MBM-...-MLI-....
For the MGB2-I... the following applies:
Along with the bus module MBM, the system consists of at least one interlocking module MGB2-I... and one handle module
MGB2-H…
The safety system MGB2-I... is an interlocking device without guard locking (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 dangerous machine functions
from occurring while the guard is open. A stop command is triggered if the guard is opened during the dangerous machine
function.
This means:
ÌStarting commands that cause a dangerous machine function must become active only when the guard is closed.
ÌOpening the guard triggers a stop command.
ÌClosing a guard must not cause automatic starting of a dangerous machine function. A separate start command must
be issued. For exceptions, refer to ENISO12100 or relevant C-standards.
For the MGB2-L... the following applies:
Along with the bus module MBM, the system consists of at least one locking module MGB2-L... and one handle module
MGB2-H…
The safety system MGB2-L... is an interlocking device with guard locking (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:
ÌThe unlocking of the guard locking by the control system triggers a stop command.
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 released 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.
For MGB2-I.. /MGB2-L..
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
ÌENISO12100
ÌENIEC62061

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
6(Translation of the original operating instructions) 2500234-04-09/20
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1
ÌENISO14119
ÌENIEC60204-1
ÌENIEC62061
The safety system MGB2-.-MLI... is only allowed to be combined with suitable MLI modules (see Table 1: Combination options
for modules with MLI technology).
On the modication of system components, EUCHNER provides no warranty for function.
The customer is responsible for the safe overall function, especially for the safe integration into an overall system.
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 18. Technical
data on page 36).
ÌIf a data sheet is included with the product, the information on the data sheet applies.
Table 1: Combination options for modules with MLI technology
Bus module Base units
Handle module Submodules Submodules Submodules
MGB2-H-...
from V1.00.0
MSM-.-P-...
MSM-.-R-...
MSM-.-N-...
MSM-.-E-... MSM-.-K-...
MBM-...-MLI
from V1.00.0
Interlocking/locking module
MGB2-I..-MLI/MGB2-L..-MLI
from V1.00.0
- -
Extension module
MCM-...-MLI - -
Key to symbols
Combination possible
- Combination not possible

7
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
3. Description of the safety function
Important!
You will nd detailed instructions on the determination of reliability values in the operating instructions
for your bus module.
Devices from this series feature the following safety functions:
For the MGB2-L... the following applies:
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. Function on page 10):
- If guard locking is released, safety bit LM.I_UK (ÜK) = 0 (monitoring of the locking element).
- If the guard is open, safety bit LM.I_SK (SK) = 0 (monitoring of the position of the guard).
- Guard locking can be activated only when the bolt tongue is located in the locking module (prevention of inadvertent
locking position (faulty closure protection)).
PLC
PFHD, Sys
PFHD, MBM
PFHD, MGB2-L
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit LM.FI_UK_
(Guardlock monitoring)
ÌSafety characteristics:
category, Performance Level, PFHD
(reliability values according to EN13849-1 see 18. Technical data).
Control of guard locking (safety bit FO_CL)
ÌSafety function:
If the device is used as guard locking for personnel protection, control of guard locking must be regarded as a safety
function.
The safety level of guard locking control is determined by the system PFHDsys. and by the external control (e.g. safe
PLC).
PFHD, ext.
PFHD, Sys
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
(e.g. standstill
monitor)
Safetybit FO_CL
(Guardlocking)
PFHD, MBM PFHD, MGB2-L
ÌSafety characteristics of bus module MBM and locking module MGB2-L:
category, Performance Level, PFHD
(reliability values according to EN13849-1, see 18. Technical data).

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
8(Translation of the original operating instructions) 2500234-04-09/20
For MGB2-I... (or a correspondingly congured MGB2-L...) the following applies:
Monitoring of the guard position
(interlocking device according to ENISO14119)
ÌSafety function: When the guard is open, safety bit LM.I_SK (SK) = 0. (See chapter 6. Function on page 10.)
PLC
PFHD, Sys
PFHD, MBM
PFHD, MGB2-I
Interlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit LM.FI_SK_
(Interlock monitoring)
ÌSafety characteristics:
category, Performance Level, PFHD
(reliability values according to EN13849-1, see 18. Technical data).
Evaluation of submodules with safety function
If you use submodules MSM with safety function in the interlocking/locking module, please observe the description of the
safety functions in the operating instructions for your bus module MBM and in any data sheet for your submodule MSM.

9
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
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
Safety switches fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safeguard and, if necessary, other safety functions particularly
Ìafter any setup work
Ìeach time after replacement of a component relevant to safety
Ìafter an extended period without use
Ìafter every fault
Ìafter any change to the DIP switch settings
Independent of these checks, the safe function of the safeguard should be checked at suitable intervals as part of the
maintenance 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 is allowed to be triggered only by the intended handle module MGB2-H…
that is positively fastened to the guard.
ÌPrevent bypassing by means of replacement actuators (only for multicode evaluation). For this
purpose, restrict access to actuators 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. For this reason you should
archive a printed copy of the operating instructions. You can download the operating instructions from
www.euchner.com.

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
10 (Translation of the original operating instructions) 2500234-04-09/20
6. Function
6.1. Interlocking module MGB2-I... (or a correspondingly congured MGB2-L2)
Together with a handle module, the interlocking module makes it possible to interlock movable guards. The combination
also serves as a mechanical door stop at the same time.
The following switch-on conditions apply to safety bit LM.FI_SK (SK):
ÌGuard closed
ÌBolt tongue inserted into the interlocking module
See also chapter 16.2. System indications during setup, teach-in and normal operation on page 34 and the operating
instructions for bus module MBM.
The interlocking module detects the position of the guard and the position of the bolt tongue. The bolt tongue in the handle
module is moved into and out of the interlocking module by actuating the door handle.
6.2. Locking module MGB2-L...
Together with a handle module, the locking module makes it possible to lock movable guards. The combination also serves
as a mechanical door stop at the same time. There are various congurations for the control of the guard locking (see
section 6.3. Control of guard locking MGB2-L1 and MGB2-L2). The following descriptions in 6.2.1 and 6.2.2 describe the
function of the guard locking with the factory setting.
Important!
To operate the device as guard locking for personnel protection according to ENISO14119, the safety
bit LM.FI_UK (ÜK) must be evaluated.
The following switch-on conditions apply to the safety bit LM.FI_UK (ÜK):
ÌGuard closed
ÌBolt tongue inserted into the locking module
ÌGuard locking in locking position (guard lock monitoring)
See also chapter 16.2. System indications during setup, teach-in and normal operation on page 34 and the operating
instructions for bus module MBM.
The locking module detects the position of the guard and the position of the bolt tongue. The position of the guard locking is
also monitored. The bolt tongue in the handle module is moved into and out of the locking module by actuating the door handle.
If the bolt tongue is fully inserted into the locking module, the guard locking can lock the bolt tongue in this position. De-
pending on version, this locking is by spring force or solenoid force.
6.2.1. Guard locking for version MGB2-L1
(guard locking actuated by spring force and released by power-ON)
Guard locking: Close guard; no voltage at the solenoid
(with factory setting: safety bit LM.FO_CL = 0.)
Releasing guard locking: Apply voltage to the solenoid (with factory setting: safety bit LM.FO_CL = 1).
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.
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.
As long as the guard locking is closed, the bolt tongue cannot be pulled out of the locking module and the guard is locked.
If voltage is applied to the guard locking solenoid, the guard locking is opened and bolt tongue is released. The guard can
be opened.
In addition to the safety bit LM.FO_CL, the non-safe bit LM.O_CL can be used to control guard locking. Refer to the table
in chapter 6.3. Control of guard locking MGB2-L1 and MGB2-L2 for the exact conguration.

11
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
6.2.2. Guard locking for version MGB2-L2
(guard locking actuated by power-ON and released by spring force)
Important!
ÌUse as guard locking for personnel protection is possible only in special cases, after strict assess-
ment of the accident risk (see ENISO14119:2013, section 5.7.1)!
ÌGuard locking will be released during power-up or if communication is lost.
Guard locking: Apply voltage to the solenoid (with factory setting: safety bit LM.FO_CL = 0).
Releasing guard locking: Disconnect voltage from the solenoid (with factory setting: safety bit LM.FO_CL = 1).
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 voltage is present at the guard locking solenoid, the guard locking is held in the locked position and the guard is locked.
In addition to the safety bit LM.FO_CL, the non-safe bit LM.O_CL can be used to control guard locking. Refer to the table
in chapter 6.3. Control of guard locking MGB2-L1 and MGB2-L2 for the exact conguration.
6.3. Control of guard locking MGB2-L1 and MGB2-L2
By changing the parameters in the conguration tool for your control system, you can set which bit combinations are to
be used to control the guard locking. You will nd an overview of the parameters in the operating instructions for the bus
module MBM.
On the use of the guard locking for personnel protection, as standard the guard locking must be controlled from the safe
control area.
On use as guard locking for process protection, the guard locking can also be controlled exclusively using a non-safe bit.
The following table shows the possible congurations.
Type of lock-
ing module
Use of the control bits for guard locking
Application
Conguration 1
(factory setting) Conguration 2 Conguration 3 Conguration 4
MGB2-L1 LM.FO_CL LM.FO_CL +LM.O_CL - - Guard locking for personnel pro-
tection.
MGB2-L2 LM.FO_CL LM.FO_CL +LM.O_CL - - Guard locking for personnel pro-
tection. Important: pay attention to
section 6.2.2.
- - LM.O_CL - Interlocking with guard locking for
process protection.
- - - Control is not congured
in the parameters
Interlocking. Only position mon-
itoring of the guard. No locking
function.

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
12 (Translation of the original operating instructions) 2500234-04-09/20
7. System overview
Escape release (optional)
(MGB-E-...)
Handle module
(MGB2-H...)
Interlocking/locking
module
(MGB2-I.../MGB2-L...)
Pronet bus module
(MBM-...)
Figure 1: Components at a glance
7.1. Interlocking/locking module MGB2-I../MGB2-L..
1
2
34
5
6
5
SLOT 1 SLOT 2
Key:
1Module function LED indicators
2Auxiliary marking for correct alignment in relation to the handle module
3Auxiliary release (optional, only on version with guard locking)
4LED indicator for submodule in SLOT 1 and SLOT 2
5 Top and bottom connection for the connection between modules
6 Submodules in SLOT 1 and SLOT 2 (conguration example)
Notice:
Depending on version, no submodules or different submodules may be
inserted. See enclosed data sheet.
Figure 2: Interlocking/locking module MGB2-I.. /MGB2-L..

13
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
7.2. Handle module MGB2-H-…
1
2
3
4
5
6
Key:
1Door handle
2Hinged lockout mechanism
3Automatically extending lockout mechanism (optional)
4Auxiliary markings for max. permissible mounting distance
5Bolt tongue
6Locking bolt for handle adjustment
Figure 3: Handle module MGB2-H-…
7.3. Escape release MGB-E-... (optional)
1 2 3 4
Key:
1Door handle
2Housing
3Actuation axis 8 x 8 mm
(different lengths available)
4Protective sleeve
Notice:
Depending on version, a mounting plate can be included.
See enclosed data sheet.
Figure 4: Escape release MGB-E-...

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
14 (Translation of the original operating instructions) 2500234-04-09/20
7.4. Dimension drawings
7.4.1. Interlocking/locking module MGB2-I.../MGB2-L...
155
114
M12x1
10,3
52,5
92,5
1525
6,3
A
A
25,6
12 max.
A-A
7.4.2. Handle module MGB2-H...
130
146
114
159
53
63
16,5
89,4
15
6,3
A
A
12 max.
8 max.
25,6
A
37
30 21
min. 6
10
A
max.
A-A

15
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
7.4.3. Escape release MGB-E-...
89,5
104,5
247,5
6,5
114 110
22
84
6

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
16 (Translation of the original operating instructions) 2500234-04-09/20
7.4.4. Assembly of MGB2-L, MGB2-H and MGB-E (example on prole 40x40)
40
15
40
155
4
130
11493
40
8
55,5
107
2,4
11,5
109,4
114,2 110,6
62,322,2
40
130
63
52,5
155
4
42
115,5
289

17
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
7.4.5. Drilling pattern, complete system with bus module MBM and optional extension module MCM
+
114
89,4
16
73,5
6,3 (12,3)
130
(25)
13092,575
0
1
0
+
0
1
0
25
16,515
4
±4
15
(10,75)
100
100
155
93 114 148
15
15
6,3
6,3
(9)
6,3
0
±4
25
25
16
MGB2-I/L MGB2-H
MCM
MBM
(9)

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
18 (Translation of the original operating instructions) 2500234-04-09/20
7.4.6. Drilling pattern, escape release MGB-E
14,5
86,5 7,5
89,4
24
6,4
MGB-E

19
2500234-04-09/20 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
8. Manual release
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
In the event of service, the guard locking can be released with the auxiliary release irrespective of the state of the solenoid
(see Figure 5).
Important!
ÌGiven corresponding parameter conguration, the system enters into a latching fault if the auxilia-
ry release is actuated. See System status table, signal sequence incorrect status (DIA red, Lock
ashes 1 time). For information on setting the related parameter, see section 19.2. Fault on actu-
ating the escape release on page 38.
Important!
ÌThe auxiliary release is not a safety function.
ÌThe machine manufacturer must select and use a suitable release (escape release, emergency
release, etc.) for a specic application. A hazard assessment is required for this purpose. It may
be necessary to take specications from a product standard into account.
ÌThe correct function must be checked at regular intervals.
ÌLoss of the release function due to mounting errors or damage during mounting. Check the re-
lease function every time after mounting.
ÌPlease observe the notes on any enclosed data sheets.
The locking screw must be screwed in and sealed again after every use of the auxiliary release (original set of seal labels
order no. 155853). Tightening torque 0.5 Nm.
1. Remove seal label or make a hole.
2. Undo locking screw.
3. Using a screwdriver, turn the auxiliary release to in the direction of the arrow.
¨Guard locking is released.
T10
3
1
2
Figure 5: Auxiliary release

Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
20 (Translation of the original operating instructions) 2500234-04-09/20
8.2. Lockout mechanism
If the lockout mechanism is pivoted out, the bolt tongue cannot be extended. The lockout mechanism can be secured with
padlocks (see Figure 6). 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
1
Key:
1Hinged lockout mechanism
Padlock ∅min. 2mm, ∅max. 10 mm
2Automatically extending lockout mechanism (optional)
Padlock ∅min. 6mm, ∅max. 10 mm
Notice:
You can t up to 3 locks Ø 8mm per lockout mechanism.
Figure 6: Lockout mechanism secured with padlock
8.3. Escape release (optional)
The escape release is used to open a guard from the inside without tools.
Depending on the parameters set in your conguration environment, the system may enter into a latching fault if the escape
release is actuated (see 19.2. Fault on actuating the escape release on page 38).
Important!
ÌIt must be possible to actuate the escape release manually from inside the protected area without
tools.
ÌIt must not be possible to reach the escape release from the outside.
ÌThe bolt tongue must not be under tensile stress during manual release.
ÌThe escape release meets the requirements of Category B according to ENISO13849-1:2015.
ÌThe correct function must be checked at regular intervals.
ÌPlease observe the notes on any enclosed data sheets.
ÌFit escape release such that operation, inspection and maintenance are possible.
ÌThe actuation axis for the escape release must be inserted min. 9 mm into the handle module. Note the information on
the different prole widths in the chapter 8.3.1. Preparing escape release on page 21.
ÌAdjust escape release axis at right angles to the handle module. See Figure 8.