Siemens Acvatix SAX Series User Manual

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Siemens Actuators SAX.., SAY.., SAV.., SAL.. for valves CE1P4040en
Building Technologies Functions and control 2018-12-05
4.2 Modulating control
The modulating positioning
signal drives the actuator
steplessly. The positioning
signal range
(DC 0...10 V / DC 4...20 mA,
0...1000 Ω) corresponds in a
linear manner to the positioning
range (fully closed...fully open,
or 0…100% stroke).
The actuator is driven via
connection terminal Y or forced
control Z (page 66). The
required stroke / rotation is
transferred to the valve’s stem /
spindle.
1 Calibration slot
2 LED (2 colors)
3 DIL switches
Changeover of characteristic
Positioning signal
4 Function module
5 A/D conversion
6 Power supply
7
Control
functions
Identification of seat
Position control
Motor control
Detection of foreign bodies
Calibration
Forced control
Characteristics function
Manual adjustment
8 Brushless DC motor
9 Gear train
Manual adjuster
Positioning
signal
Stroke actuator Rotary actuator
Control
path valve
AàAB
Bypass
valve
B à AB
Signal Y, Z
increasing
Actuator’s stem
extends
Actuator’s spindle turns in
clockwise direction
Opening Closing
Signal Y, Z
decreasing
Actuator’s stem
retracts
Actuator’s spindle turns in
counterclockwise direction
Closing Opening
Signal Y, Z
constant
Actuator’s stem
maintains the position
Actuator’s spindle
maintains the position
Maintains the position
· If function module AZX61.1 is used, observe the information given in chapter
"Changeover of acting direction" (page 59).
· Observe the information given in chapter "Acting direction and flow
characteristic" on page 61.
Notes

Siemens Acvatix SAX Series Specifications

General

Brand	Siemens
Model	Acvatix SAX Series
Category	Controller
Language	English