GF EA 21 Bedienungsanleitung Seite 55

Setting the end positions
Setting the opening angle from 90° to 180°
• Turn switching cam 2 of switch S2 counter clockwise (top view) by 90°.
• Reconnect the actuator to the supply voltage
• Move the actuator into position "CLOSED" (terminal 2 under current)
• Turn cam 2 until reaching the desired position. (see position of the ball)
• Replace the standard position indicator by the new 3-way position indi-
cator
Standard position indicator
Setting the middle position
• Move the actuator to the OPEN position (terminal 1 under current)
• Place the additional switching cam on the shaft. For this, first remove
the position indicator again and put it back on again in the same position
afterwards
• Place cam 3 upon cam 2 (cam 4 still stays on top of the switches)
• Put cam 3 into the same position as cam 2 and turn it clockwise by 90°
• Move actuator to the "middle" position (terminal 3 under current)
• Readjust cam 3 until reaching the desired middle position (see position
of the valve)
• Now Place cam 4 upon cam 3 in the same position as cam 3. Adjust cam
4 afterwards. Its corner flank should activate switch S4 (S3 and S4 are
activated, the two nocks of the cams indicate to the opposite direction).
• Close the actuator with the housing cover. The middle position is now
set.
OPEN
3-way position indicator
MIDDLE CLOSED
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