User Manual

2
Siemens
A6V11858278_en--_a
Smart Infrastructure
2020-07-30
Use
NOTICE
SSA161E.05HF is only compatible with VPP46.. and VPI46…
Technical design
Control signal with input impedance 4-20 mA 150 (for SSA151.05HF)
The valve opens / closes in proportion to the
control signal at Y.
At 4 mA, actuator stem extended, the valve is fully
closed.
When no power is supplied, the actuator maintains
its current position.
This actuator provides a 4…20 mA position
feedback signal proportional to the stroke of the
actuator stem.
Y = Control signal Y [mA]
H = Percentage of calibrated valve stroke
DC 0...10 V control signal (for SSA161.05HF)
The valve opens / closes in proportion to the
control signal at Y.
At DC 0 V, actuator stem extended, the valve is
fully closed.
When no power is supplied, the actuator maintains
its current position.
This actuator provides a DC 0…10 V position
feedback signal proportional to the stroke of the
actuator stem.
Y = Control signal Y [V]
H = Percentage of calibrated valve stroke