Siemens SITRANS FC430, Руководство по эксплуатации

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Configure the dosing function as follows:
1. Basic dosing parameters common for all recipes in menu 2.5 "Dosing"
– Select valve control functionality at parameter "Dosing Mode"
– Select measured process value for dosing at parameter "Process Values"
2. Individual recipe(s) in menus 2.5.4 to 2.5.8 as required
– Setup dosing name, amount, unit and compensation
– Select valve control sequence
– Select fault handling configuration
3. Output(s) in menu 2.4 "Inputs/Outputs" (see table below).
4. Input for dosing control in menu 2.4 "Inputs/Outputs"
8.8.1 Dosing control configuration
Dosing control includes valve control (discrete/analog) and fault handling. The valve control is
done using channels 2, 3 and 4. Dosing control can be configured to:
● One on/off valve
● Two on/off valves
● Control valve
One on/off valve
Use one Signal or one Relay output to control the one-stage dosing. Set the Operating Mode
of signal output to Status. Assign Status Mode to control the Primary Valve. A Signal Input can
be assigned to start the dosing.
Two on/off valves
Use two Signal or two Relay outputs to control the two-stage dosing. Set the Operating Mode
of signal output to Status. Assign one Status Mode to control the Primary Valve and the other
to control the Secondary Valve. A Signal Input can be assigned to start the dosing.
Control valve
Use one Signal output to control the Control valve. Assign the Operating Mode to Current
Output. A Signal Input can be assigned to start the dosing.
Process Values
The following process values can be used for dosing control:
● Mass flow
● Volume flow
Functions
8.8 Dosing
FC430 (From firmware 4.0)
Operating Instructions, 06/2017, A5E39789392-AA
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