EUCHNER MGB User Manual
MGB
Help for Setup
and Service
(from V2.0.0)
MGB Help for Setup and Service
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MGB Help for Setup and Service
Table of contents
1 Connection...................................................................................................................................................4
1.1 Connection of the buttons in the MGB...................................................................................................4
1.2 Control of the guard locking...................................................................................................................4
1.3 Parallel control of the guard locking.......................................................................................................4
1.4 Operation on safety relay.......................................................................................................................4
2 Teach-in operation ......................................................................................................................................5
2.1 Preparing device for teach-in operation.................................................................................................5
2.2 Teaching in handle module....................................................................................................................6
3 Troubleshooting ..........................................................................................................................................7
3.1 LED DIA illuminated + LED STATE not illuminated (AR and AP modes) .............................................7
3.2 LED DIA illuminated + LED STATE flashes 1 time (AR and AP modes) ..............................................7
3.3 LED DIA illuminated + LED STATE flashes 2 times (single wiring – only AR mode)...........................8
3.4 LED DIA illuminated + LED STATE flashes 2 time (series wiring – only AR mode) ............................8
3.5 LED DIA illuminated + LED STATE flashes 3 time (AR and AP modes) ..............................................9
3.6 LED DIA illuminated + LED STATE flashes 4 time (AR and AP modes) ............................................10
3.7 LED DIA illuminated + LED Lock flashes 1 time (AR and AP modes) ................................................10
3.8 LED DIA not illuminated + LED STATE not illuminated or does not flash...........................................11
3.9 LED DIA not illuminated + LED STATE flashes 3 times (AR and AP modes) ...................................11
3.10 LED DIA not illuminated + LED STATE flashes approx. every 3 sec. (AR and AP modes) ...............11
3.11 Individual flickering input LED on the evaluation unit ..........................................................................11
4 System status tables.................................................................................................................................12
4.1 MGB-AR...............................................................................................................................................12
4.2 MGB-AP...............................................................................................................................................13
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MGB Help for Setup and Service
1 Connection
1.1 Connection of the buttons in the MGB
The terminal assignment of the switches (lights, buttons, emergency stop, etc.) in the cover of the MGB is not
described in the system manual. These terminals can be found in the associated data sheet of the MGB
included with every delivery. Please contact EUCHNER if the data sheet has been lost, and you will promptly be
sent a data sheet. Alternatively, you can look in the MGB catalog.
The switches and the emergency stop are floating. However, the lights and the buttons all referred to a common
potential. The terminals are to be found on connections X2 and X3.
Example:
1.2 Control of the guard locking
The guard locking is typically controlled by a PLC via one channel. The monitoring of the installed solenoid in
combination with the locking arm, which represents the locking device as defined in EN 1088, is suitable for PL e.
Two-channel control, e.g. by a safe PLC, is technically possible but does not provide improved safety. The two
connection terminals I
Always use connection terminal I
and IMM are intended for this purpose.
MP
in case of one-channel control.
MP
1.3 Parallel control of the guard locking
The guard locking solenoids are supplied from voltage UA. The inputs IMP serve to control the solenoids; the
current draw here is only approx. 3 mA. Several I
potential is present at OV
.
M
inputs can be controlled in parallel if a common 0 V
MP
1.4 Operation on safety relay
The MGB can be connected to most conventional safety relays. Since the outputs, similar to those on a socalled OSSD on light barriers or light curtains, produce clock pulses, a connection as described for non-contact
systems must be used.
Alternatively, the circuit from the section “Operating on clocking outputs” can be used.
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MGB Help for Setup and Service
2 Teach-in operation
2.1 Preparing device for teach-in operation
Connect the MGB as shown below, but do not apply any voltage to UB yet.
Observe different control of guard locking for MGB-L1 and MGB-L2.
Note:
In case of AR configuration: For the teach-in standby state, FI1A and FI1B must be connected to DC 24 V.
Every MGB taught-in individually before a switch chain is set up.
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