EUCHNER MGB-L2-xxxAPx-xxx - Manual (Page 7)

7
Operating Instructions MGB-L1...AR.-... / MGB-L2...AR.-... and MGB-L1...AP.-... / MGB-L2...AP.-...
5 Function
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.
The following switch-on condition applies for the safety outputs FO1A and FO1B
(see also sections 13.2 System status table MGB-AR, page 33 and 13.3 System
status table MGB-AP, page 34):
Configuration
System family MGB-AR MGB-AP
Guard lock monitoring active inactive active inactive
Condition
Not a fault in the device TRUE TRUE TRUE TRUE
Safety guard closed TRUE TRUE TRUE TRUE
Bolt tongue inserted in locking module TRUE TRUE TRUE TRUE
Guard locking active TRUE
Not rel-
evant
TRUE
Not rel-
evant
In case of series connection:
Signal available from the upstream switch on the
safety inputs FI1A and FI1B
In case of separate operation:
DC 24 V available on the safety inputs FI1A and
FI1B
TRUE TRUE
Not rel-
evant
Not rel-
evant
FO1A and FO1B are ON
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.
Guard lock monitoring can be deactivated with DIPswitches (see section 10.5
Changing device configuration (using DIPswitches), page 21).
Important:
For use as guard locking in accordance with EN 1088 the guard lock monitoring
must be active.
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.
Version MGB-L1-..., 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-L2-..., 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!
The safety guard can be opened immediately in the event of interruption of the
solenoid power supply! Usage only in special cases in accordance with strict
evaluation of the accident risk (see EN 1088:1995+A2:2008, section 5.5).
Example: If the risk of accidental locking inside a safety guard during a power
failure is higher than the risk of ineffective guard locking.
DIP OFF
ON