EUCHNER MGB-LxxB-PNA-xxx User Manual
Operating Instructions
Safety System
MGB-L..B-PNA-... (PROFINET)
with Data Structure Type A
Valid for MGB systems with the following order numbers:
105283
105284
105287
109856
109857
110816
113230
113231
113232
113233
114775
114776
115621
115622
121841
121843
121845
121847
More than safety.
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Contents
Correct use 3
Exclusion of liability and warranty 4
General safety instructions 5
Function 6
Interlocking module MGB-L0.B-PNA 6
Locking module MGB-L1.B-PNA and MGB-L2.B-PNA 6
Control of the guard locking 7
System overview 11
Evaluation module MGB-L.- 12
Handle module MGB-H-... 12
Escape release MGB-E-... (optional) 12
Dimension drawing 12
Mechanical release (only systems with guard locking) 13
Lockout mechanism 14
Escape release (optional) 14
Mounting 16
Mounting color cover 16
Changing the actuating direction (here: from right to left) 18
Controls and indicators 20
Protection against environmental effects 21
Electrical connection 21
Connections on bus module 22
Setup 23
Integrating into PROFINET and PROFIsafe 23
Replacement of an MGB system without programming device 24
System reset to factory settings 24
Teach-in operation (only for MGB unicode) 25
Mechanical function test 26
Electrical function test MGB-L0... 26
Electrical function test MGB-L1.../-L2... 26
PROFINET data bytes
PROFIsafe data bytes (safe input/output area) 28
Diagnostic messages of the MGB system 29
(unsafe input/output area) 27
System status table 31
Technical data 32
Troubleshooting 33
Latching fault when actuating the escape release 33
Fault reset 33
Inspection and service 34
Declaration of conformity 35
2
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Correct use
The system comprises at least one interlocking module MGB-L0.B or locking module
MGB-L1.B-... / MGB-L2.B-... and one handle module MGB-H...
The interlocking or locking module MGB-L..B-PN.-... is operated as an IO device
in the PROFINET (PROFIsafe).
Systems with interlocking module (MGB-L0.-...) are interlocking devices according
to EN 1088.
In combination with a separating safety guard and the machine control, the version
with interlocking prevents dangerous machine movements from occurring while
the safety guard is open.
For the control system, this means that
Ì starting commands which cause hazardous situations must become active only
when the safety guard is in the protective position.
The dangerous machine movement is stopped as soon as the safety guard is
opened.
Systems with locking module (MGB-L1.-.../MGB-L2.-...) are electromagnetic interlocking devices with guard locking and guard lock monitoring according to EN 1099.
In combination with a separating safety guard and the machine control, the MGB
system prevents the safety guard from being opened while a dangerous machine
movement is being performed.
For the control system, this means that
Ì starting commands which cause hazardous situations must become active
only when the safety guard is in protective position and the guard locking is in
locked position.
The locked position of the guard locking must be released only when the hazardous situation is no longer present.
Before safety components are used, a risk assessment must be performed on the
machine, e.g. in accordance with
Ì EN ISO 13849-1, Safety of machinery. Safety related parts of control systems.
General principles for design
Ì EN ISO 14121, Safety of machinery. Risk assessment. Principles.
Correct use includes compliance with the relevant requirements for installation
and operation, in particular
Ì EN ISO 13849-1, Safety of machinery. Safety related parts of control systems.
General principles for design
Ì EN 1088, Safety of machinery. Interlocking devices associated with guards.
Principles for design and selection
Ì EN 60204-1, Safety of machinery. Electrical equipment of machines. General
requirements.
The safety system MGB can only be combined with the intended modules in the
MGB system family.
On the modification of system components, EUCHNER provides no warranty for
safe function.
The customer is responsible for the safe overall function, especially for the safe
integration into the PROFIsafe environment.
3
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Important!
Ì The user is responsible for the 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.
Ì Correct use requires observing the permissible operating parameters (see
Technical data).
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.
Ì In the estimation of the PL for the overall system, a maximum value of
100 years can be assumed for the MTTFd according to the limit value in
EN ISO 13849-1:2008, section 4.5.2. This corresponds to a minimum value
for the PFHd of 2.47x10-8/h.
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.
4
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
General safety instructions
Safety switches fulfill 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
Independent of these checks, the safe function of the safety guard should be
checked at suitable intervals as part of the maintenance schedule.
Warning!
Loss of safety function in the event of incorrect connection or incorrect use.
Ì Safety switches must not be bypassed (bridging of contacts), turned away,
removed or otherwise rendered ineffective.
On this topic pay attention in particular to the measures for reducing the possibility of bypassing from EN 1088:1995+A2:2008, section 5.7.
Ì The switching operation is only allowed to be triggered by the intended han-
dle module MGB-H... that is positively fastened to the safety guard.
The device is only allowed to be installed and placed in operation by authorized
personnel
Ì who are familiar with the correct handling of safety components
Ì who are familiar with the applicable EMC regulations
Ì who are familiar with the applicable regulations on health and safety and ac-
cident prevention
Ì who have read and understood the operating instructions.
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.
5
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Function
Interlocking module MGB-L0.B-PNA
Together with a handle module, the interlocking module makes it possible to interlock movable safety guards. The combination also serves as a mechanical door
stop at the same time.
The following switch-on condition applies to safety bit SI9 (see also System status
table and section PROFIsafe data bytes):
Ì Safety guard closed (T)
Ì Bolt tongue inserted into interlocking module (R)
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.
Locking module MGB-L1.B-PNA and MGB-L2.B-PNA
Important!
Together with a handle module, the locking module makes it possible to lock
movable safety guards. The combination also serves as a mechanical door stop
at the same time.
To operate the device as a guard lock according to EN 1088, the signals for door
position (T), bolt position (R) and guard lock monitoring (Z) must be polled in a
logical AND operator. This operator is already implemented in the safety bit SI10.
As an alternative, you can also link the bits SI3 to SI5 individually in your control
system.
The following switch-on condition applies to safety bit SI10 (see also System status
table and section PROFIsafe data bytes):
Ì Safety guard closed (T)
Ì Bolt tongue inserted into locking module (R)
Ì Locking arm in locking position (guard lock monitoring) (Z)
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.
6
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Version MGB-L1B-..., guard locking by spring force
The locking arm is kept in locked position by spring force and is unlocked by
solenoid force (closed-circuit current principle).
Version MGB-L2B-..., guard locking by solenoid force
The locking arm is kept in locked position by solenoid force and unlocked by spring
force when the solenoid is switched off (open-circuit current principle).
Warning!
Ì The safety guard can be opened immediately in the event of interruption of
the solenoid power supply!
Ì Usage only in special cases after strict evaluation of the accident risk (see
EN 1088:1995+A2:2008, section 5.5)!
Typical case: If the risk of accidental locking inside a safety guard during a power
failure is higher than the risk of ineffective guard locking.
Control of the guard locking
Important!
Important!
From MGB version V2.36.4, the factory ensures that control is possible only from
the safe control area. Here, it was determined in the firmware that only bit S01
is evaluated.
By changing the parameters in the configuration tool of your control system, it can
be set that bit 016 is evaluated as well.
Control of the guard locking via the safe control area does not provide increased
safety, as the device-internal control of the guard locking is only of single-channel
design.
The following functions depend on the MGB version, the version of the GSD file
and the settings made there.
Compare the specified versions with those on your device and your GSD file. The
version number of your MGB can be found on the type plate (format: V X.XX.X).
MGB version GSD version Continue in section ...
up to and including V 2.35.4
from V 2.36.4
..._110026-20110725
..._110026-20110815
..._110026-20110725
..._110026-20110815
Case A
Case A
Case B
Case C
7
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Case A
You have an MGB with a version number of V 2.35.4 and a GSD file with a version
number of ..._110026-20110725 or older. Or you have an MGB with a version number of V 2.35.4 and a GSD file with a version number from ..._110026-20110815.
The guard locking solenoid is controlled if
Ì bit O16 OR bit SO1 = 1
Truth table:
PROFINET bit PROFIsafe bit Guard locking with
O16 SO1 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 file 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 configuration software remains ineffective.
8
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Case B
You have an MGB with a version number of V 2.36.4 and a GSD file with a version
number of ..._110026-20110725 or older.
The guard locking solenoid is controlled if
for MGB-L1...
Ì bit SO1 = 1
for MGB-L2...
Ì bit O16 OR bit SO1 = 1
Truth table:
PROFINET bit PROFIsafe bit Guard locking with
O16 SO1 MGB-L1... MGB-L2...
0 0 active inactive
0 1 inactive active
1 0 active active
1 1 inactive active
What must be observed?
Bit O16 does not have any function with version MGB-L1... In existing installations
in which old devices are replaced with new ones (e.g. due to defect), malfunctions
can occur if control via bit O16 was programmed in the PLC.
Remedy:
1. Replace the old GSD file with a version from ..._110026-20110815.
2. In the parameter Locking module – solenoid control, activate unsafe control
of the guard locking solenoid via bit O16.
3. Set bit SO1 permanently to the value 1.
¨ The guard locking solenoid is controlled exclusively via bit O16
or
Ì Change the control bit from O16 to SO1 in your PLC program
9
Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
Case C
You have an MGB with a version number of V 2.36.4 and a GSD file with a version
number from ..._110026-20110815.
The guard locking solenoid is controlled if:
Ì bit SO1 = 1 (factory setting)
Truth table:
PROFINET bit PROFIsafe bit Guard locking with
O16
Not relevant
0 0 active inactive
0 1 inactive active
1 0 active inactive
1 1 inactive active
What must be observed?
You can define in the GSD file whether bit O16 may be used for control in addition
to bit SO1. The setting is specified in the parameter Locking module – solenoid
control.
SO1 MGB-L1... MGB-L2...
If O16 is additionally used, the guard locking solenoid is controlled if
for MGB-L1...
Ì bit SO1 AND bit 016 = 1
for MGB-L2...
Ì bit SO1 OR bit 016 = 1
Truth table:
PROFINET bit PROFIsafe bit Guard locking with
O16 SO1 MGB-L1... MGB-L2...
0 0 active inactive
0 1 active active
1 0 active active
1 1 inactive active
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Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
System overview
Mounting plate
Escape release (optional)
(MGB-E...)
Evaluation module
(MGB-L...)
Handle module
(MGB-H...)
Bus module
(Profinet)
(MGB-B...)
Figure 1: Components at a glance (sample configuration)
Note: MGB-PN systems are completely factory configured. The configuration must not be changed subsequently. The illustrations in this section can
deviate from your system and serve only as examples. The configuration
of your MGB system can be found in the data sheet included with every
MGB system.
Key:
1
LED indicator
2
Power supply
3
PROFINET connection
Note:
Depending on the version, additional
controls and indicators may be integrated
into the cover and a mounting plate can
be included. The type of connection can
vary depending on the version. See enclosed data sheet.
Bus module MGB-B-...-PN
1
2
3
Figure 2: Bus module MGB-B-...-PN (configuration example)
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