Control function
The control function of the controller is selected here. The following options are available:
- Dynamic control valve
- Differential pressure control *)
- Flow temperature control
- Heating circuit outside temperature compensated flow temperature control
- >>> Control valve for changeover <<<
*) | Currently available exclusively for the 2-port valves EVG../EVF.. |
Setpoint source
The source of the setpoint for the selected control function is defined here.
The automation station switches between heating and cooling operation as needed, and specifies the setpoint on Intelligent Valve. The following options are available:
- Analog (input X1)
- Network (BACnet/IP)
- Network (Modbus RTU) (supported from software version FW1.18 onwards)
Input X1
The configuration of input X1 results from the selected control function and the setpoint source.
The input is only active, if "Analog (input X1)" is selected as the setpoint source. If a network setpoint source ("BACnet/IP" or "Modbus RTU") is selected, input X1 can be used for a monitoring pressure sensor.
Signal type selection for X1
The following options are available for the signal type on X1:
- 0…10 V
- 2…10 V
- 4…20 mA
Note: In this control function, the signal is mapped to 0…100 %.
Output X2
For output X2, a calculated analog value can be selected from a list. The following options are available:
- Primary flow temperature: 0…100 % (TFlPrim)
- If this option is selected, the "Process value 2 for prim.flow temp.out" can be set (ABT Go: "Commissioning" > "Valve", 0…150 °C)
- Primary return temperature: 0…100 % (TRtPrim)
- If this option is selected, the "Process value 2 for prim.return temp.out" can be set (ABT Go: "Commissioning" > "Valve", 0…150 °C)
- Flow/return temperature difference: 0…100 % (TDiffFlRt)
- Relative volume flow: 0…100 %
- Valve position: 0…100 % (VlvPosFb)
- Relative power: 0…100 % of design power *)
*) | 100 % = PwrDsgn |
Signal type selection for X2
The following options are available for the signal type on output X2:
- 0…10 V
- 2…10 V
- 4…20 mA
Input X3
In the application as dynamic control valve for changeover, input X3 can be inactive (factory setting) or set to "Volume flow" or "Pressure".
By selecting "Volume flow", input X3 is used as a flow sensor for a DN150 valve. With "Pressure", it is used as a monitoring pressure sensor.
Signal type selection for X3
If input X3 is set to "Volume flow", the signal type is set automatically.
Related documents
Detailed information on commissioning with the ABT tools:
● Intelligent Valve Commissioning with ABT Go: A6V11422293
● Intelligent Valve Engineering / Commissioning in Desigo: A6V11572317