Control Mode Of Actuator - Siemens RVA63.242 User Manual

Benefit
Description
Setting
2-position control
3-position control
174/218
Siemens Building Technologies
Landis & Staefa Division

5.26 Control mode of actuator

Use of 2- or 3-position mixing valve actuators.
By selecting the control mode, the control is matched to the type of mixing valve
actuator used in the mixing heating circuit.
Setting range
0 / 1
0 2-position control
1 3-position control
2-position control delivers on / off output signals that allow the motorized mixing valve
to open and close.
For adequate control, a switching differential is required. When using a 2-position
actuator, it is therefore important that the switching differential be matched to the type
of plant. Also refer to "switching differential of actuator" in Index (setting line 36
3-position control delivers output signals that allow the actuator to open, close or stop in
any position.
With this control mode, the switching differential need not be adjusted since the 3-
position actuator can stop in any position.
Basic Documentation RVA63.242, RVA53.242
Description of OEM settings
Unit
–
Factory setting
1
).
OEM
CE1P2373E
26.03.2001