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Johnson Controls ERA1600 Bedienungsanleitung Seite 28

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10 E
Model with electronic positioner (EPOS 7.0) and auxiliary switches
EPOS 7.0 Rückseite - Rear
0 - 20mA
2
1
0 - 10V
Schalter für Wirkungssinn
Action mode switch
Ausgleichspotentiometer
Compensatory
Fig. 1
Setting procedure
♦ The position of the transfer bolt must correspond to the valve stroke see Fig. 2
Fig. 2
Adjustments are easier to make with the positioner pcb removed from it s bracket
Jumper position 1 for: 0 –10 V, see fig 1
Jumper position 2 for: 0 –20 mA, see fig 1
♦ Action mode switch in position II, Span at 100% and start-point at 0%, turn compensatory potentiometer
in the anti-clockwise direction to stop, see fig.1.
♦ 24 V AC on terminal B, 0 V DC (0 mA) input voltage on terminal E. Operate actuator until stem extends
and is brought to a halt by the S1 micro-switch, see fig.3.
I
II
If the transfer bolt setting is less than the actual valve-stroke
capability the potentiometer reaches the friction clutch areas
too soon and the control range is inhibited. This can lead to
premature wear and eventual machine failure.
If the transfer bolt setting is greater than the actual valve-
stroke capability the control range is not achieved.
Danger
Remedy:
In both cases ensure correct adjustment of the transfer bolt.
EPOS 7.0 Vorderseite - Front
ARBEITSBEREICH
A
50
SPAN
40
30
ANSPRECHPUNKT
B
STARTING POINT
20
I
Antriebsspindel einfahrend
0 V
Actuator stem retracts
Antriebsspindel ausfahrend
0 V
Actuator stem extends
II
I = UW / R.A.
EU:
II = DW / D.A.
I = D.A.
US:
II = R.A.
111 6041 050 E
60
40
60
70
80
80
20
90
100
100
0
%
%
A
B
EPOS 7.0
161 2591 010

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Diese Anleitung auch für:

Era1800Era3000