59 / 92
Siemens
Actuators SAX.., SAY.., SAV.., SAL.. for valves
CE1P4040en
Building Technologies
Functions and control
2018-12-05
4.3.2
Changeover of acting direction
Acting direction
OFF
1)
Direct acting
positioning signal Y or Z
ON
1)
Reverse acting
positioning signal Y or Z
1)
Factory setting: All switches set to OFF
·
With valves whose stem is extended in the fully closed position, "direct acting"
means that the valve is fully closed (0%) when positioning signal Y = 0 V resp.
Z = 0
Ω
. This applies to all Siemens valves according to "Equipment
·
With valves whose stem is retracted in the fully closed position, "direct acting"
means that the valve is fully open (100%) when positioning signal Y = 0 V resp.
Z = 0
Ω
.
Direct acting
Reverse acting
Positioning signal Y:
DC 0…10 V
4…20 mA
Positioning signal Z:
0...1000
W
Y, Z
Positioning signal
V
Volumetric flow
Acting direction: Direct
Acting direction: Reverse
Reverse acting
Direct acting
Positioning signal Y:
DC 0…10 V
4…20 mA
Positioning signal Z:
0...1000
W
DIL switches
Selecting the acting
direction
SAX61.03
SAV61.00
SAY61P03
SAX61P03
SAV61P00