GF EA 21 Bedienungsanleitung Seite 70

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Setting the position signalization
For the position sensor (4) to recognize the OPEN and
CLOSED positions, a single learning run with 360° must
be done. After the learning run, the OPEN and CLOSED
5
positions are set.
6
Further learning runs can be done between the end posi-
tions (depending on the switching cams S1 and S2).
The way how the jumper is placed on the position signaliza-
tion determines if the learning run happens with 360° or if it
happens between the end positions.
Jumper (7) connects both PINs:
Jumper doesn't connect the PINs:
Before doing the learning run set the jumper so it connects
the two PINs. Complete learning run. Then reset the jumper
to its original position and remount the actuator.
Doing a learning run
Press the button (5) on the board for ca. 2s. (The LED (6) will
go out briefly. As soon as the LED lights up again, release
the button). The actuator will do a learning run.
During this run, the LED (6) will blink. While the LED (6) is
blinking, the actuator is in the learning mode. The learning
run is only finished correctly when the LED lights continuo-
usly.
learning run 360°
learning run between
the end positions
When position signalization is mounted ex
factory, a learning run with 360° has been
already done. In this case the jumper is
placed on only one PIN. When the position
signalization is mounted by the customer a
360° learning run has to be done. Therefore
the two PINs need to be connected by the
jumper.
Subsequent modifications on the switching
cams requires a new learning run.
Learning run 360° (Position signalization
kit subsequently installed)
It is necessary to separate the actuator from
the valve, to avoid damage to the valve.