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Safety information and Maintenance
(Part of the Operating Instructions for Safety System MGB-AR/MGB-AP)
Scope
This safety information is part of the operating
instructions for the safety system MGB. It applies to
the following MGB systems:
Series
System family
...-AP...
MGB
...-AR...
Correct use
Version MGB-L0-...
f
The safety system MGB is an electromagnetic inter-
locking device without guard locking.
The system comprises at least one interlocking
module MGB-L0-... and one handle module MGB-H...
The following applies for MGB-AR: The interlocking
module MGB-L0-AR-... can be integrated into an AR
switch chain or operated as a separate system.
In combination with a separating safety guard and
the machine control, this safety component prevents
dangerous machine movements from occurring while
the safety guard is open. A stop command is triggered
if the safety guard is opened during the dangerous
machine function.
For the control system, this means that
starting commands which cause hazardous situ-
f
ations must become active only when the safety
guard is in the protective position.
Version MGB-L1-... / MGB-L2-...
f
The system comprises at least one locking module
MGB-L1-.../MGB-L2-... and one handle module
MGB-H...
The safety system MGB is an electromagnetic inter-
locking device with guard locking.
The locking module can be configured with the aid of
DIP switches. Depending on the setting, the locking
module behaves like an AP or AR device. In addition
the guard lock monitoring can be switched on or off.
With active guard lock monitoring the following
applies:
In combination with a movable safety guard and the
machine control, this safety component can prevent
opening of the safety guard while a dangerous
machine movement is performed. The position of
the guard locking is monitored during this process.
For the control system, this means that
star ting commands which cause hazard-
ous 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.
With inactive guard lock monitoring the follow-
ing applies:
In combination with a movable separating safety
guard, this safety device prevents dangerous machine
movements from occurring while the safety guard is
open. A stop command is triggered if the safety guard
is opened during the dangerous machine function. The
position of the guard locking is not taken into account
during this process.
Before safety components are used, a risk as-
sessment must be performed on the machine in
accordance with
EN ISO 13849-1, Safety of machinery. Safety re-
f
lated parts of control systems. General principles
for design, Annex B
EN ISO 12100, Safety of machinery – Basic con-
f
cepts - General principles for design - Risk assess-
ment and risk reduction.
Correct use includes compliance with the relevant re-
quirements for installation and operation, in particular
EN ISO 13849, Safety of machinery. Safety related
f
parts of control systems. General principles for
design
Product
EN 1088, Safety of machinery. Interlocking devices
f
version
associated with guards. Principles for design and
selection
from V2.0.0
EN 60204-1, Safety of machinery. Electrical equip-
f
ment 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, EUCH-
NER provides no warranty for function.
Locking modules with the configuration MGB-AR can
be integrated into an AR switch chain.
The connection of several devices in an AR switch
chain is only permitted to be made using devices
intended for series connection in an AR switch chain.
Check the operating instructions for the related de-
vice. For detailed information on operation in an AR
switch chain, please see the operating instructions
for the related AR device.
Important:
The user is responsible for the integration of the
f
device in a safe overall system. For this purpose,
the overall system must be validated, e.g. in ac-
cordance with EN ISO 13849-2.
Correct use requires observing the permissible
f
operating parameters.
If a product data sheet is included with the product,
f
the information on the data sheet applies in case
of discrepancies with the operating instructions.
In the estimation of the PL for the overall system,
f
a maximum value of 100 years can be assumed
for the MTTF
according to the limit value in EN ISO
d
13849-1:2008, Section 4.5.2. This corresponds
to a minimum value for the PFH
When up to 10 devices are connected in series,
f
these limit values can be assumed for the entire
switch chain as a subsystem. As a subsystem, this
switch chain achieves PL e.
Main differences between MGB-AP and MGB-AR
System
Use
family
If series connection is not necessary, the
MGB-AP
number of terminals can be reduced using
this system family.
Linking of several safety guards on one
shutdown path. As a consequence several
MGB-AR
safety doors can be very simply polled
using one evaluation unit or two control
system inputs.
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 war-
ranty void.
General safety instructions
The safety function of the system while the machine
is in operation can no longer be ensured if the device
is connected incorrectly or used incorrectly.
Safety components perform a personal protection
function. Incorrect installation or tampering can lead
to severe injuries to personnel.
Safety components must not be bypassed
(bridging of contacts), turned away, re-
moved or otherwise rendered ineffective.
On this topic pay attention in particular to the
measures for reducing the possibility of bypass-
ing from EN 1088:1995+A2:2008, Section 5.7.
The switching operation is only allowed to be trig-
gered by the intended handle 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
who are familiar with the correct handling of safety
f
components
who are familiar with the applicable EMC regula-
f
tions
who are familiar with the applicable regulations on
f
health and safety and accident prevention
who have read and understood the operating
f
instructions.
Prior to use, read the operating instructions on the
CD/DVD supplied, and keep these in a safe place.
Ensure the operating instructions are always avail-
able during mounting, setup and servicing.
EUCHNER cannot provide any warranty in relation to
the readability of the CD/DVD for the storage period
required. For this reason you should archive a printed
copy of the operating instructions. You can download
the operating instructions at www.EUCHNER.de.
Operating instructions on CD/DVD
Each device is supplied with operating instructions
of 2.47 x 10-8/h.
on CD/DVD; these instructions contain detailed infor-
d
mation on the overall system. The following system
requirements must be met to be able to open or print
the document:
PC with PDF Reader installed
f
CD/DVD drive
f
Opening and printing the documents
f
Important: the autoplay function for the drive must be
enabled (see operating system help) and you will need
a PDF Reader that can open PDF files from version 4.
1. Insert CD
Selection table is opened in the browser
¨
2. Click the related document for your system
The document is opened and can be printed.
¨
Mounting, setup and troubleshooting
For detailed instructions on mounting, setup and
troubleshooting, please refer to the operating instruc-
tions on the CD/DVD.
Electrical connection
For detailed information on the electrical connec-
tion, please refer to the operating instructions on
the CD/DVD.
All the electrical connections must either be
isolated from the mains supply by a safety
transformer according to IEC EN 61558-2-6 with
limited output voltage in the event of a fault, or
by other equivalent isolation measures.
The operating voltage for the guard locking so-
lenoid must match the information on the rating
plate (only version with guard locking).
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