Dosing Operation - Siemens SITRANS FC430 Operating Instructions Manual

Three-positional Control valve configured in recipe 1
Parameter configuration:
Menu 2.5 Dosing
2.5.1 Dosing Mode = Control valve
Menu 2.5.4.5 Valve Control
2.5.4.5.1 Stage Setup Format = Relative
2.5.4.5.6 Fully Closed Current Level = 0 mA
2.5.4.5.7 Partial Open Current Level = 10 mA
2.5.4.5.8 Fully Open Current Level = 20 mA
2.5.4.5.9 Fully Open = 35 %
2.5.4.5.10 Partially Closed = 65 %
①
②
③
④
⑤
⑥
⑦
8.8.3

Dosing operation

When the transmitter recipes have been configured, the active recipe is selected in parameter
2.5.3 "Active Recipe". The transmitter output changes according to the dosing operation and
controls the valve in the dosing process. The digital input can be configured to start dosing.
HMI provides dosing control via the dosing operating view, see HMI (Page 136). All dosing
setup and control can be performed via bus communication using SIMATIC PDM.
Dosing compensation
In static applications the flowrate is constant. Thus, the dosing compensation, if required, is
fixed. Use the fixed compensation by entering the amount in menu item 2.5.5.5.2 (Fixed
Compensation).
FC430 (From firmware 4.0)
Operating Instructions, 06/2017, A5E39789392-AA
Partially open valve
Fully open valve (35%)
Partially open valve (65%)
Fully closed valve
No flow
Partial flow
Full flow
Functions
8.8 Dosing
177