Operating Instructions
Operating Instructions Safety Systems
MGB-L1…-AR.-… / MGB-L2…-AR.-… and MGB-L1…-AP.-… / MGB-L2…-AP.-…
14
(translation of the original operating instructions) 2119167-06-06/20
8. Manual release
Some situations require the guard locking to be released manually (e.g. malfunctions or an emergency). A function test
should be performed after release.
More information on this topic can be found in the standard ENISO14119:2013, section 5.7.5.1. The device can feature
the following release functions:
8.1. Auxiliary release
In the event of service, the guard locking can be released with the auxiliary release irrespective of the state of the solenoid
(see Figure 5).
DIP
OFF
ON
Ì When release monitoring is active, the system enters into a latching fault when the auxiliary release is actuated.
See System status table, signal sequence incorrect status (DIA red, Lock ashes 1 time).
Ì The system might not enter into a latching fault if the auxiliary release is actuated very slowly.
Important!
Ì The auxiliary release must be reset at the control system level, e.g. by means of a plausibility
check (status of the safety outputs does not match the guard locking activation signal). See
ENISO14119:2013, sec. 5.7.5.4.
Ì The auxiliary release is not a safety function.
Ì The machine manufacturer must select and use a suitable release (escape release, emergency
unlocking, etc.) for a specic application. A risk assessment is required for this purpose. It may be
necessary to take specications from a product standard into account.
Ì The correct function must be checked at regular intervals.
Ì Loss of the release function due to mounting errors or damage during mounting. Check the re-
lease function every time after mounting.
Ì Please observe the notes on any enclosed data sheets.
The locking screw must be screwed back in and sealed (for example with sealing lacquer) after assembly and after every
use of the auxiliary release. Tightening torque 0.5 Nm.
1. Undo locking screw.
2. Lift locking arm using a screwdriver and actuate door handle.
Figure 5: Auxiliary release