42
MGC control unit
Function description
5.2
Function sequence
Mag00922
Ma
g00834
The control unit receives
an opening impulse.
Passage is possible.
The hold-open time is started.
While the hold-open time
is running, passage is possible.
Has the
centre pillar
been moved?
A spring moves the centre pillar
to the next end position.
The centre pillar stays
in closed position.
The free and the blocked
directions can be signalled
via optional displays.
The centre pillar remains
in the home position. After the
end of the hold-open time,
the opening impulses are deleted.
The control unit is waiting
for the next action.
Passage is free.
The optional displays
light up green in both directions.
Ende
Start
Yes
No
Yes
No
No
Yes
Has the
centre pillar been
turned in the proper
direction?
Has the
centre pillar
been turned
by 120°?