EUCHNER MGB-L**B-PN series Operating Instructions Manual
EN
Operating Instructions
Safety Systems
MGB-L..B-PN.-… (PROFINET)
with Data Structure Type A
from V3.30.0
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
2
(translation of the original operating instructions) 114575-04-03/15
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 instructions.................................................................................... 9
6. Function ............................................................................................................. 10
6.1. Interlocking module MGB-L0.B-PN. .................................................................................................10
6.2. Locking module MGB-L1.B-PN. and MGB-L2.B-PN. ...........................................................................10
6.3. Guard locking for version MGB-L1 ..................................................................................................11
6.4. Guard locking for version MGB-L2 ..................................................................................................11
6.5. Control of the guard locking ..........................................................................................................12
6.5.1. Case A .........................................................................................................................12
6.5.2. Case B .........................................................................................................................13
6.5.3. Case C .........................................................................................................................14
7. System overview................................................................................................. 15
7.1. Bus module MGB-B-…-PN ..............................................................................................................15
7.2. Locking/release module MGB-L.- ....................................................................................................16
7.3. Handle module MGB-H-…...............................................................................................................16
7.4. Escape release MGB-E-… (optional) ................................................................................................16
7.5. Dimension drawing .......................................................................................................................16
7.6. Manual release .............................................................................................................................16
7.7. Mechanical release .......................................................................................................................17
7.8. Lockout mechanism ......................................................................................................................18
7.9. Escape release (optional) ..............................................................................................................18
7.9.1. Preparing escape release .............................................................................................19
8. Mounting ............................................................................................................ 20
8.1. Mounting color cover ....................................................................................................................21
9. Changing actuating direction .............................................................................. 22
10. Protection against environmental effects ............................................................. 23
11. Controls and indicators ....................................................................................... 24
3
114575-04-03/15 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
EN
12. Electrical connection .......................................................................................... 25
12.1. Notes about .........................................................................................................................25
12.2. Connections on bus module ...........................................................................................................26
12.2.1. Terminal assignment for version with push-pull plugs ........................................................26
12.2.2. Terminal assignment for version with 7/8" and M12 plugs, d-coded ..................................26
13. Setup ................................................................................................................. 27
13.1. Integrating into PROFINET and PROFIsafe .......................................................................................27
13.2. Replacement of an MGB system without programming device ..........................................................27
13.3. System reset to factory settings ....................................................................................................27
13.4. Teach-in operation (only for MGB unicode) .......................................................................................28
13.5. Mechanical function test ................................................................................................................28
13.6. Electrical function test ...................................................................................................................28
13.7. PROFINET data bytes (data blocks for unsafe functions) ...................................................................29
13.8. PROFIsafe data bytes (data block for safe functions) ........................................................................30
14. Diagnostic messages of the MGB system ............................................................. 31
15. PROFINET alarms ............................................................................................... 32
15.1. Fault in stacklight module .................................................................................................32
16. System status table ............................................................................................ 33
17. Technical data .................................................................................................... 34
18. Troubleshooting and assistance ........................................................................... 35
18.1. Latching fault when actuating the escape release ............................................................................35
18.2. Fault reset ....................................................................................................................................35
18.3. Help on troubleshooting on the Internet ..........................................................................................35
18.4. Help on mounting on the Internet ...................................................................................................35
18.5. Application examples ....................................................................................................................35
19. Service .............................................................................................................. 36
20. Inspection and service ........................................................................................ 36
21. Declaration of conformity ................................................................................... 37
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
4
(translation of the original operating instructions) 114575-04-03/15
1. About this document
1.1. Scope
These operating instructions are valid for all MGB-L..B-PN.-… (PROFINET) with Data Structure Type A and the following order
numbers:
105283 109856 113230 113233 115621 121843
105284 109857 113231 114775 115622 121845
105287 110816 113232 114776 121841 121847
These operating instructions, the document “Safety information and maintenance” 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)
…-PN…
from V3.30.1
L1 (guard locking by spring force) from V3.30.1
L2 (guard locking by solenoid force) from V3.30.0
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 devices on machines, as well as setup and servicing staff possessing
special expertise in handling safety components
1.3. Key to symbols
Symbol/depiction Signicance
Printed document
www
Document is available for download at www.EUCHNER.de
Document on CD
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 Tip/useful information
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title
(document number)
Contents
Operating instructions
(114575)
(this document)
Possibly enclosed data
sheet
Item-specic 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.de. Enter the document number in the
search box for this purpose.
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114575-04-03/15 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) 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 (type4). Devices with unicode evaluation possess a
high coding level; devices with multicode evaluation feature a low coding level.
In combination with a movable safety guard and the machine control, this safety component prevents dangerous machine
functions from occurring while the safety guard is open. A stop command is triggered if the safety guard is opened during
the dangerous machine function.
This means:
Ì Starting commands that cause a dangerous machine function must become active only when the safety guard is closed.
Ì Opening the safety guard triggers a stop command.
Ì Closing a safety guard must not cause automatic starting of a dangerous machine function. A separate start command
must be issued. For exceptions, refer to ENISO12100 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 (type4). Devices with unicode evaluation possess a
high coding level; devices with multicode evaluation feature a low coding level.
In combination with a movable safety guard and the machine control, this safety component prevents the safety guard from
being opened while a dangerous machine function is being performed.
This means:
Ì Starting commands that cause a dangerous machine function must become active only when the safety guard is closed
and locked.
Ì The guard locking device must not be unlocked until the dangerous machine function has ended.
Ì Closing and locking a safety guard must not cause automatic starting of a dangerous machine function. A separate start
command must be issued. For exceptions, refer to ENISO12100 or relevant C-standards.
For MGB-L0 /MGB-L1 / MGB-L2
The interlocking module MGB-L0B-PN.-… and the locking module MGB-L1B-PN.-…/MGB-L2B-PN.-… are operated as IO
devices in the PROFINET (PROFIsafe).
Before the device is used, a risk assessment must be performed on the machine, e.g. in accordance with the following
standards:
Ì ENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
Ì ENISO12100, Safety of machinery – General principles for design – Risk assessment and risk reduction
Ì IEC62061, 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:
Ì ENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design
Ì ENISO14119 (supersedes EN1088), Safety of machinery – Interlocking devices associated with guards – Principles
for design and selection
Ì EN60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General requirements
The safety system MGB can only be combined with the intended modules in the MGB system family.
On the modication 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 PROFIsafe environment.
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
6
(translation of the original operating instructions) 114575-04-03/15
Important!
Ì The 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 ENISO13849-2.
Ì Correct use requires observing the permissible operating parameters (see chapter 17. Technical
data on page 34).
Ì If a product data sheet is included with the product, the information on the data sheet applies in
case of discrepancies with the operating instructions.
Table 1: Possible combinations for MGB components
Evaluation unit
Handle module
MGB-H-...
from V2.0.0
MGB…PN
from V3.30.0
Key to symbols Combination possible
7
114575-04-03/15 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) 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 in case of active guard lock monitoring (ÜK, bitSI 10):
Monitoring of guard locking and the position of the safety guard
(interlocking device with guard locking according to ENISO14119)
Ì Safety function (see chapter 6. Function on page 10):
- When guard locking is unlocked, safety bit SI 10 (ÜK)=0 (monitoring of the locking device).
- When the safety guard is open, safety bit SI 9 (SK)=0.
- Guard locking can be activated only when the bolt tongue is located in the locking module (failsafe locking mechanism).
Ì Safety characteristics: category, Performance Level, PFH
d
(see chapter 17. Technical data on page 34).
Control of guard locking (safety bit SO 1)
Ì Safety 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 device PFH
d
int.
and by the external control (e.g. PFH
d
ext.
of the standstill monitor).
PFH
d
ext.
PFH
d
int.
(internal electronic)
Guardlocking Device
MGB-PN
(e.g. standstill
monitor)
Safetybit SO 1
(Guardlocking)
Ì Safety characteristics: category, Performance Level, PFH
d
(see chapter 17. Technical data on page 34).
The following applies in case of inactive guard lock monitoring (ÜK, bitSI 10):
Monitoring of the safety guard position
(interlocking device according to ENISO14119)
Ì Safety function: When the safety guard is open, safety bit SI 10 (SK)=0 (see chapter 6. Function on page 10).
Ì Safety characteristics: category, Performance Level, PFH
d
(see chapter 17. Technical data on page 34).
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
8
(translation of the original operating instructions) 114575-04-03/15
The following applies to devices with emergency stop:
Emergency stop
(emergency stop device according to ENISO13850)
Ì Safety function: evaluation of emergency stop
Ì Safety characteristics: B
10d
value of emergency stop and PFHd for the evaluation electronics (see chapter 17. Technical
data on page 34)
PFH
d
ext.
PFH
d
int.
(internal electronic,
evaluation of the
emergency stop)
MGB-PN
(Failsafe PLC)
B10
d
(Emergency Stop)
Safetybit SI 1
(Emergency Stop)
The following applies to devices with connection for enabling switch:
Enabling function
Ì Safety function: evaluation of a connected enabling switch
Ì Safety characteristics: B
10d
value of the enabling switch (see manufacturer’s information) and PFHd for the evaluation
electronics (see chapter 17. Technical data on page 34)
PFH
d
ext.
PFH
d
int.
(internal electronic,
evaluation of the
enabling switch)
MGB-PN
(Failsafe PLC)
B10
d
(Enabling Switch)
Safetybit SI 2
(Enabling Switch)
For devices with selector switch:
Detection of the switch position
Ì Safety function: evaluation of the switch position, e.g. for safe switchover between individual operating modes
Ì Safety characteristics: PFH
d
for the evaluation electronics (see chapter 17. Technical data on page 34). The switch
position is scanned electronically, so there is no B
10d
value for the switch.
PFH
d
ext.
PFH
d
int.
(internal electronic,
evaluation of the
selector switch)
MGB-PN
(Failsafe PLC)
Safetybits
SI 6, SI 7, SI 8
(Selector Switch)
9
114575-04-03/15 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) 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 instructions are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety instructions
Safety switches fulll personal protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safety guard particularly
Ì after any setup work
Ì after the replacement of an MGB component
Ì after an extended period without use
Ì after every fault
Ì after any change to the DIP switch setting
Independent of these checks, the safe function of the safety guard 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 personal protection function.
Ì Safety 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 bypassing according to ENISO14119:2013, section 7.
Ì The switching operation is only allowed to be triggered by the intended handle module MGB-H…
that is positively fastened to the safety guard.
Ì Prevent bypassing by means of replacement actuators (only for multicode evaluation). For this
purpose, restrict access to actuators and to keys for releases, for example.
Ì Mounting, 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 occupational 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 instructions from www.euchner.de.
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
10
(translation of the original operating instructions) 114575-04-03/15
6. Function
6.1. Interlocking module MGB-L0.B-PN.
Together with a handle module, the interlocking module makes it possible to interlock moving safety guards. The combination also serves as a mechanical door stop at the same time.
The following switch-on condition applies to safety bit SI 9 (SK):
Ì Safety guard closed (T)
Ì Bolt tongue inserted into interlocking module (R)
See also chapter 16. System status table on page 33 and chapter 13.8. PROFIsafe data bytes (data block for safe
functions) on page 30.
The interlocking module detects the position of the safety 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-PN. and MGB-L2.B-PN.
Together with a handle module, the locking module makes it possible to lock moving safety guards. The combination also
serves as a mechanical door stop at the same time.
Important!
To operate the device as a guard lock for personnel protection according to ENISO14119, the signals for door position (T=PROFIsafe bit SI 3), bolt position (R= PROFIsafe bit SI 4) and guard lock
monitoring (Z= PROFIsafe bit SI 5) must be polled in a logical AND operator. This operator is already
implemented in the PROFIsafe data block (ÜK=safety bit SI 10).
As an alternative, you can also link the bits SI 3 to SI 5 individually in your control system.
The following switch-on condition applies to safety bit SI 10 (ÜK):
Ì Safety guard closed (T)
Ì Bolt tongue inserted into locking module (R)
Ì Locking arm in locking position (guard lock monitoring) (Z)
See also chapter 16. System status table on page 33 and chapter 13.8. PROFIsafe data bytes (data block for safe func-
tions) on page 30.
The locking module detects the position of the safety 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.
When the bolt tongue is fully inserted in the locking module, the locking arm locks the bolt tongue in this position. Depending
on the version, this locking is by spring force or solenoid force.
11
114575-04-03/15 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
EN
6.3. Guard locking for version MGB-L1
(guard locking actuated by spring force and released by energy ON)
Activating guard locking: close safety guard; no voltage at the solenoid (safety bit SO 1=0).
Releasing guard locking: apply voltage to the solenoid (safety bit SO 1=1).
The spring-operated guard locking functions in accordance with the closed-circuit current principle. If voltage is interrupted
at the solenoid, guard locking remains active and the safety guard cannot be opened directly.
Important!
If the safety guard is open when the power supply is interrupted and the guard 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 safety guard is locked.
When voltage is applied to the locking solenoid, the locking arm is opened and bolt tongue is released. The safety guard
can be opened.
6.4. Guard locking for version MGB-L2
(guard locking actuated by energy 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 ENISO14119:2013, section 5.7.1)!
Activating guard locking: apply voltage to the solenoid (safety bit SO 1=1).
Releasing guard locking: disconnect voltage from the solenoid (safety bit SO 1=0).
The magnetically actuated guard locking operates in accordance with the open-circuit current principle. If voltage is interrupted at the solenoid, guard locking is released and the safety guard can be opened directly!
The safety guard can be opened as long as no voltage is applied to the guard locking solenoid.
When voltage is present at the guard locking solenoid, the the locking arm is held in locked position and the safety guard
is locked.
Operating Instructions Safety Systems
MGB-L..B-PN.-… (PROFINET) and with Data Structure Type A
12
(translation of the original operating instructions) 114575-04-03/15
6.5. Control of the guard locking
From MGB version V2.36.4, the factory ensures that control is possible only from the safe control area.
By changing the parameters in the conguration tool of your control system, it can be set whether bit O 16 (in the safe
data block for the MGB locking module) is evaluated as well.
Important!
The following applies to MGB-L2:
Control of the guard locking via the safe control area does not provide increased safety, as the deviceinternal control of the guard locking is only of single-channel design.
Important!
The following functions depend on the MGB version, the version of the GSD le and the settings made
there.
Compare the specied versions with those on your device and your GSD le. The version number of
your MGB can be found on the type plate (format: VX.XX.X).
MGB version GSD version Continue in section ...
up to and including V2.35.4 ..._110026-20110725 Case A
..._110026-20110815 Case A
from V3.30.0 ..._110026-20110725 Case B
..._110026-20110815 or newer Case C
6.5.1. Case A
You have an MGB with a version number of V2.35.4 and a GSD le with a version number of ..._110026-20110725 or older.
Or you have an MGB with a version number of V2.35.4 and a GSD le with a version number from ..._110026-20110815.
The guard locking solenoid is controlled if
Ì bit O 16 OR bit SO 01 = 1
Truth table
PROFINET bit PROFIsafe bit Guard locking with
O 16 SO 01
MGB-L1... MGB-L2...
0 0
active inactive
0 1
inactive active
1 0
inactive active
1 1
inactive active
What must be observed?
The guard locking can be controlled from the unsafe control area. The combination with the more up-to-date GSD le allows
a parameter to specify which bits are to be used for control. However, the device does not support this function. In other
words, the setting in your conguration software remains ineffective.
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