Connection example 2 (globe valve)
•
Operation with single-phase alternating current (three-step control)
•
Final switch-off, actuator stem extending from the actuator (direction "CLOSED"), load-de-
pendent via switch
DE-S1
•
Final switch-off, actuator stem retracting in the actuator (direction "OPEN"), load-dependent
via switch
DE-S2
connected in series with switch
WE-S3
Connecting the actuator
– Connect the grounding conductor of the
connecting line (green/yellow wire) to the
grounding conductor clamp .
– N of connecting line to clamp
1
.
– Control line extending actuator stem
"CLOSED" to clamp
11
.
– Control line retracting actuator stem
"OPEN" to clamp
14
.
– Insert jumpers; from clamp
10
to clamp
3
,
from clamp
16
to clamp
2
, and from clamp
13
to clamp
17.
Testing the actuator
– Use a three-step controller to control the actuator.
– Use an isolated screw driver to operate the
switching rolls of the switch and check
whether the switch actually does deactivate
the motor:
With extending actuator stem ->
upper switch
DE-S1,
With retracting actuator stem ->
lower s witch
DE-S2
and
s witch
WE-S3
.
– If required, switch the motor supply jumpers
on the clamps 2 and 3.
N
7 8
1 2 3
13 14 15
10 11 12
16 17 18
HZ
1~
C
R
DE
S1
DE
S2
WE
S3
HZ
Heating resistor
DE-S1 Torque limit switch
S1, position "CLOSED"
DE-S2 Torque limit switch
S2, position "OPEN"
WE-S3 Travel limit switch S3,
position "OPEN"
Signal
"CLOSED" "OPEN"
Fig. 13
⋅
Circuit diagram, connection example 2
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