EUCHNER MGB-L B-EI Series User manual

EN
Operating Instructions
Safety Systems
MGB-L..B-EI-… (Ethernet/IP)
With Data Structure Type A
From V1.5.0

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
2(translation of the original operating instructions) 2126330-10-03/21
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 MGB-L0.B-EI....................................................................................................10
6.2. Locking module MGB-L1.B-EI. and MGB-L2.B-EI. ..............................................................................10
6.3. Guard locking for version MGB-L1 ..................................................................................................11
6.4. Guard locking for version MGB-L2 ..................................................................................................11
7. System overview................................................................................................. 12
7.1. Bus module MGB-B-…-EI................................................................................................................12
7.2. Locking/release module MGB-L.-....................................................................................................13
7.3. Handle module MGB-H-…...............................................................................................................13
7.4. Escape release MGB-E-... (optional) ................................................................................................13
7.5. Dimension drawing .......................................................................................................................13
8. Manual release................................................................................................... 14
8.1. Auxiliary release............................................................................................................................14
8.2. Lockout mechanism......................................................................................................................15
8.3. Escape release (optional) ..............................................................................................................15
8.3.1. Preparing escape release ..............................................................................................16
9. Mounting............................................................................................................ 17
9.1. Mounting lens...............................................................................................................................18
10. Changing actuating direction .............................................................................. 19
11. Protection against environmental effects............................................................. 20
12. Controls and indicators....................................................................................... 21

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2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
13. Electrical connection .......................................................................................... 22
13.1. Notes about .........................................................................................................................22
13.2. Connections, variant M12..............................................................................................................23
13.3. Connections, variant 7/8"..............................................................................................................23
14. Setup ................................................................................................................. 24
14.1. Integrating into Ethernet/IP and CIPSafety
®................................................................................................................24
14.2. Teach-in operation (only for MGB unicode).......................................................................................24
14.3. Mechanical function test................................................................................................................24
14.4. Electrical function test...................................................................................................................25
14.5. Ethernet/IP data bytes ..................................................................................................................25
15. MGB system diagnostic messages....................................................................... 27
16. System status table ............................................................................................ 28
17. Special functions ................................................................................................ 29
17.1. Factory reset................................................................................................................................29
17.2. Software update ...........................................................................................................................29
18. Technical data .................................................................................................... 30
19. Troubleshooting and assistance........................................................................... 31
19.1. Latching fault when actuating the escape release............................................................................31
19.2. Resetting errors ...........................................................................................................................31
19.3. Application examples ....................................................................................................................31
20. Inspection and service ........................................................................................ 32
21. Service .............................................................................................................. 32
22. Declaration of conformity ................................................................................... 33

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
4(translation of the original operating instructions) 2126330-10-03/21
1. About this document
1.1. Scope
These operating instructions are valid for all MGB-L..B-EI-… (Ethernet/IP) With Data Structure Type A. These operating instruc-
tions, the document Safety information and any enclosed data sheet form the complete user information for your device.
Series Guard locking types System families Product versions
MGB
L0 (without guard locking)
…-EI… From V1.5.0L1 (guard locking by spring force)
L2 (guard locking by solenoid force)
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 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
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
(2126330) (this document)
Internet
www
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.

5
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
2. Correct use
The following applies to MGB-L0:
The system comprises at least one interlocking module MGB-L0-... and one handle module MGB-H...
The safety system MGB 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.
The following applies to MGB-L1/MBG-L2:
The system comprises at least one locking module MGB-L1-…/MGB-L2-… and one handle module MGB-H…
The safety system MGB 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:
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.
The following applies to MGB-L0/MGB-L1/MGB-L2:
The interlocking module MGB-L0B-EI.-… and the locking module MGB-L1B-EI.-…/MGB-L2B-EI.-… are operated as IO devices
under Ethernet/IP.
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
ÌIEC62061
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60204-1

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
6(translation of the original operating instructions) 2126330-10-03/21
The safety system MGB can be combined only with the intended modules in the MGB system family.
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 the CIPSafety® environment.
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 30).
ÌIf a data sheet is included with the product, the information on the data sheet applies.
Table 1: Possible combinations for MGB components
Evaluation unit
Handle module
MGB-H-...
From V2.0.0
MGB…EI
From V1.5.0
Key to symbols Combination possible

7
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
3. Description of the safety function
Devices from this series feature the following safety functions:
The following applies to MGB-L1 and MGB-L2:
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):
- When guard locking is released, safety bit FI.UK (ÜK) = 0 (monitoring of the locking element).
- When the guard is open, safety bit FI.SK (SK) = 0.
- Guard locking can be activated only when the bolt tongue is located in the locking module (prevention of inadvertent
locking position (faulty closure protection)).
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 18. Technical data on page 30).
Control of guard locking (safety bit FO.L)
ÌSafety function
If the device is used as guard locking for personnel protection, control of guard locking must be regarded as a safety
function. Guard locking is controlled via safety bit FO.L (see chapter 6.3. Guard locking for version MGB-L1 on page
11).
The safety level of guard locking control is determined by the device PFHDint. and by the external control (e.g. PFHDext. of
the standstill monitor).
PFHDext. PFHDint.
(internal electronic)
Guardlocking Device
MGB-EI
(e.g. standstill
monitor)
Safetybit FO.L
(Guardlocking)
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 18. Technical data on page 30).
The following applies to MGB-L0:
Monitoring of the guard position
(interlocking device according to ENISO14119)
ÌSafety function: When the guard is open, safety bit FI.SK (SK)=0. (See chapter 6. Function on page 10.)
ÌSafety characteristics: category, Performance Level, PFHD(see chapter 18. Technical data on page 30).

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
8(translation of the original operating instructions) 2126330-10-03/21
The following applies to devices with emergency stop:
Emergency stop
(emergency stop device according to ENISO13850)
ÌSafety function: evaluation of emergency stop
ÌSafety characteristics: B10D value for the emergency stop and PFHDfor the evaluation electronics (see chapter 18.
Technical data on page 30)
PFHDext.
PFHDint.
(internal electronic,
evaluation of the
emergency stop)
MGB-EI
(Failsafe PLC)
B10D
(Emergency Stop)
Safetybit FI.ES
(Emergency Stop)
The following applies to devices with connection for enabling switch:
Enabling function
ÌSafety function: evaluation of a connected enabling switch
ÌSafety characteristics: B10D value for the enabling switch (see manufacturer’s information) and PFHDfor the evaluation
electronics (see chapter 18. Technical data on page 30)
PFHDext.
PFHDint.
(internal electronic,
evaluation of the
enabling switch)
MGB-EI
(Failsafe PLC)
B10D
(Enabling Switch)
Safetybit FI.EN
(Enabling Switch)
For devices with multi-position switch:
Detection of the switch position
ÌSafety function: Evaluation of the switch position. E.g. for safe switchover between individual operating modes
ÌSafety characteristics: PFHDfor the evaluation electronics (see chapter 18. Technical data on page 30). The switch
position is scanned electronically. There is therefore no B10D value for the switch.
PFHDext.
PFHDint.
(internal electronic,
evaluation of the
selector switch)
MGB-EI
(Failsafe PLC)
Safetybits
FI.MS0, FI.MS1, FI.MS1
(Selector Switch)

9
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
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 particularly
Ìafter any setup work
Ìafter the replacement of an MGB component
Ìafter an extended period without use
Ìafter every fault
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 fulll
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 MGB-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 Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
10 (translation of the original operating instructions) 2126330-10-03/21
6. Function
6.1. Interlocking module MGB-L0.B-EI.
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.
Important!
To operate the device as an interlocking device according to ENISO14119, the signals for door
position (safe bit FI.D) and bolt position (safe bit FI.B) must be polled in a logical AND operator.
This operator is already implemented in safety bit FI.SK.
As an alternative, you can also link the bits FI.D and FI.B individually in your control system.
The following switch-on condition applies to safety bit FI.SK (SK):
ÌGuard closed FI.D
ÌBolt tongue inserted into interlocking module FI.B
Also see chapter 16. System status table on page 28.
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 MGB-L1.B-EI. and MGB-L2.B-EI.
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.
Important!
To operate the device as a guard locking device for personnel protection according to ENISO14119,
the signals for door position (safe bit FI.D), bolt position (safe bit FI.B) and guard lock monitoring
(safe bit FI.L) must be polled in a logical AND operator. This operator is already implemented in
safety bit FI.UK.
As an alternative, you can also link the bits FI.D, FI.B and FI.L individually in your control system.
The following switch-on condition applies to safety bit FI.UK:
ÌGuard closed FI.D
ÌBolt tongue inserted into locking module FI.B
ÌLocking arm in locking position (guard lock monitoring) FI.L
Also see chapter 16. System status table on page 28.
The locking module detects the position of the guard and the position of the bolt tongue. The position of the locking arm
is also monitored.
The bolt tongue in the handle module is moved into and out of the locking module by actuating the door handle.
The locking arm locks the bolt tongue when the bolt tongue is fully inserted into the locking module. Depending on version,
this locking is by spring force or solenoid force.
Guard locking is controlled via safety bit FO.L. See chapter 6.3. Guard locking for version MGB-L1 on page 11.

11
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
6.3. Guard locking for version MGB-L1
(guard locking actuated by spring force and released by power-ON)
Activating guard locking: close guard, no voltage at the solenoid (safety bit FO.L = 0).
Releasing guard locking: apply voltage to the solenoid (safety bit FO.L = 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 locking arm is closed, the bolt tongue cannot be pulled out of the locking module and the guard is locked.
When voltage is applied to the guard locking solenoid, the locking arm is opened and bolt tongue is released. The guard
can be opened.
6.4. Guard locking for version MGB-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 (safety bit FO.L = 0).
Releasing guard locking: disconnect voltage from the solenoid (safety bit FO.L = 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.
When voltage is applied to the guard locking solenoid, the locking arm is held in the locked position and the guard is locked.

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
12 (translation of the original operating instructions) 2126330-10-03/21
7. System overview
Mounting plate
Escape release (optional)
(MGB-E...)
Handle module
(MGB-H...)
Locking/release module
(MGB-L...)
Bus module
(Ethernet/IP)
(MGB-B...)
Fig. 1: Components at a glance
NOTICE
MGB-EI systems are completely factory congured. The conguration must not be changed subse-
quently. The illustrations in this chapter can deviate from your system and serve only as examples. The
conguration of your MGB system can be found in the data sheet included with every MGB system.
7.1. Bus module MGB-B-…-EI
Key:
1LED indicator
2Power supply
3Ethernet/IP connection
Notice:
Depending on version, additional controls and indicators may be integrated into the
cover. See enclosed data sheet.
1
23
Fig. 2: Bus module MGB-B-…-EI (conguration example)

13
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
7.2. Locking/release module MGB-L.-
2
1
3
4
Key:
1LED indicator
2Cover for auxiliary release
3Locking arm (only version with guard locking)
4Auxiliary marking for max. permitted mounting distance
Notice:
Depending on version, additional controls and indicators may be integrated into the
cover. See enclosed data sheet.
Fig. 3: Locking/release module MGB-L.-
7.3. Handle module MGB-H-…
1
2
33
4
Key:
1Door handle
2Locking screws T10 for housing cover and handle adjustment
3Fold-out lockout mechanism
(optional: second, automatically extending lockout mechanism)
4Bolt tongue
Notice:
Depending on version, a mounting plate can be included.
See enclosed data sheet.
Fig. 4: Handle module MGB-H-…
7.4. 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.
Fig. 5: Escape release MGB-E-...
7.5. Dimension drawing
See enclosed data sheet.

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
14 (translation of the original operating instructions) 2126330-10-03/21
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 servicing, the guard locking can be released with the auxiliary release irrespective of the state of the solenoid
(see Fig. 6).
Important!
ÌThe system enters into a latching fault when the auxiliary release is actuated. See System status
table, signal sequence incorrect status (DIA red, Lock ashes 1 time).
ÌThe system might not enter into a latching fault if the auxiliary release is actuated very slowly.
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.
ÌObserve the notes on any enclosed data sheets.
The locking screw must be screwed back in and sealed (with sealing lacquer, for example) after mounting and after every
use of the auxiliary release. Tightening torque 0.5 Nm.
1. Undo locking screw.
2. Lift locking arm using a screwdriver and actuate door handle.
Fig. 6: Auxiliary release

15
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
8.2. Lockout mechanism
If the lockout mechanism is pivoted out/extended, the bolt tongue cannot be extended. The lockout mechanism can be
secured with padlocks (see Fig. 7). 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).
12Key:
1Padlock ∅min. 2mm,
∅max. 10 mm
2Automatically extending, second lockout mechanism
Padlock ∅min. 6mm, ∅max. 10 mm
Notice:
You can t a maximum of 3 locks Ø 8mm.
Fig. 7: Lockout mechanism secured with padlock
8.3. Escape release (optional)
The escape release is used to open a locked guard from the inside without tools.
Important!
ÌThe system enters into a latching fault when the escape release is actuated. See System status
table, signal sequence incorrect status (DIA red, Lock ashes 1 time).
ÌThe system might not enter into a latching fault if the escape release is actuated very slowly.
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 actuator 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.
ÌObserve the notes on any enclosed data sheets.
ÌFit escape release such that operation, inspection and service are possible.
ÌThe actuation axis for the escape release must be inserted min. 10 mm into the handle module. Note the information on
the different prole widths in chapter 8.3.1. Preparing escape release on page 16.
ÌAdjust escape release axis at right angles to the handle module. See Fig. 8.

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
16 (translation of the original operating instructions) 2126330-10-03/21
8.3.1. Preparing escape release
Prole width Required length
Actuation axis
Which EUCHNERparts are required? Necessary work steps
Without
mounting
plates
With mounting
plates
(4 mm each)
D D+9 D+17
30 mm 39 mm 47 mm Standard escape release
with 107 mm axis
(order no. 100465)
Shorten to required length
40 mm 49 mm 57 mm Standard escape release
with 107 mm axis
(order no. 100465)
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 escape release
with 107 mm axis
(order no. 100465)
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 escape release
with 107 mm axis
(order no. 100465)
and
extended actuation axis (order no. 106761)
Use extended actuation axis and protective sleeve and
shorten to required length
55,5
M4
250
182
D + 9
D -1
D
(11,5) 55,5
Example without mounting plates:
Escape release
Handle module
Actuation axis Protective sleeve
(+4 mm per mounting plate)
(+4 mm per mounting plate)
1Insert actuation axis. The snap ring Amust be in contact with the escape release B.
2Fit door handle.
3Tighten xing screw to 2Nm and push in cap.
4Fit protective sleeve.
1
3
2
4
A
B
Fig. 8: Preparing escape release

17
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
9. Mounting
WARNING
Mounting must be performed only by authorized personnel.
NOTICE
Risk of damage to equipment and malfunctions as a result of incorrect installation.
ÌObserve EN ISO 14119:2013, sections 5.2 and 5.3, for information about mounting the safety
switch and the actuator.
With two-leaf hinged doors, one of the two door leaves must also be latched mechanically.
Use a rod latch (Item) or a double-door lock (Bosch Rexroth) for this purpose, for example.
Important!
ÌIn case of ush installation, the operating distances change as a function of the installation depth
and the guard material.
Locking
module Handle module
Locking
module Handle module
Surface mounting
Flush installation
Actuating range
Actuating range
Tip!
ÌYou can nd various animations about the assembly process in the media library at
www.euchner.com.
ÌThe color and labeling of pushbuttons and indicators can be modied.
For mounting steps, see Fig. 9 and Fig. 10 to Fig. 15.
Attach system such that operation of the auxiliary release as well as inspection and service are possible.
The locking screw of the auxiliary release must be returned to its original position and sealed before putting into operation
(with sealing lacquer, for example).

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
18 (translation of the original operating instructions) 2126330-10-03/21
Fig. 9: Installation example for door hinged on the right (general view)
9.1. Mounting lens
1 2
23
90°
Click!
1
Mounting
Removal
Lens

19
2126330-10-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
EN
10. Changing actuating direction
(here: from right to left)
Important!
It is possible to make this change only when the bolt tongue is not extended and an escape release
is not yet mounted.
In the delivery state, the handle module is set either for doors hinged on the right or for doors hinged on the left.
Based on the example of a handle module for doors hinged on the right this means:
ÌThe guard opens by pressing down the door handle.
ÌThe system is mounted the other way around for doors hinged on the left. In other words, the guard opens by pressing
up the door handle (see Fig. 10). For this reason the actuating direction of the door handle must be changed (see Fig.
10 to Fig. 15).
(Similarly on handle modules for doors hinged on the left)
CLOSED
OPEN 1
3
2
1Press door handle up.
2Unscrew locking screws.
3Push cover aside.
Fig. 10: Changing actuating direction, step 1Fig. 11: Changing actuating direction, steps 2and 3
5
4
4Lift the locking pin on the door handle using a screwdriver and hold
it in this position.
5Turn door handle to the right.
7
8
6b
a
3 mm
6Only on the use of an escape release: using the hexagon head
screw, turn the joint counterclockwise from position (a) to position
(b).
7Close cover.
8Screw in locking screws and tighten to 0.8 Nm.
Fig. 12: Changing actuating direction, steps 4and 5Fig. 13: Changing actuating direction, steps 6to 8

Operating Instructions Safety Systems
MGB-L..B-EI-… (Ethernet/IP) and With Data Structure Type A
20 (translation of the original operating instructions) 2126330-10-03/21
3 mm
9
10
11
OPEN
CLOSED
9Remove cover and undo hexagon socket screw.
AT Change door handle by 90° in clockwise direction and re-t.
A Tighten hexagon socket head screw to 3 Nm. A State after changing.
Fig. 14: Changing actuating direction, steps 9to A Fig. 15: Changing actuating direction, nal state
11. Protection against environmental effects
Lasting and correct safety function requires that the system must be protected against foreign bodies such as swarf, sand,
blasting shot, etc., which can become lodged in the locking and handle modules. For this purpose a suitable installation
position should be selected.
Cover device during painting work!