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Siemens Modulating control valves with magnetic actuators, PN 16 CE2N4461en
Building Technologies 17.06.2009
0...10 V 2...10 V
0...20 mA 4...20 mA
Y
ON
OFF
ON
OFF
ON
OFF
ON
OFF
4461Z22
0...10 V 2...10 V
0...20 mA 4...20 mA
ON
OFF
ON
OFF
U
Ri > 500
Ω
Ri < 500
Ω
4461Z23
Output signal U (position feedback signal) is
dependent on the load resistance Ri.
Ri > 500 Ω,  voltage signal
Ri < 500 Ω,  current signal
Y
V
.
Y
V
.
ON
OFF
ON
OFF
4461Z24
Z - function
no function fully open closed
Connections Transfer
Function
• Z is not connected
• The valve will follow the Y-
signal or phase-cut signal
• Z connected to G
• The valve will fully open
via control path A  AB
• Z connected to G0
• The valve will close via control
path A  AB
1. Hand wheel position Man (open) or Off
2. Forced control signal Z
3. Phase-cut signal
4. Signal input Y
Selection positioning
signal and range Y
Voltage and current
Selection positioning
range Y and U:
0...10 V / 0…20 mA or
2...10 V / 4...20 mA
Selection valve
characteristics
Equal-percentage or
linear
Forced control input Z
Signal priority