Siemens SITRANS FC330, Руководство по эксплуатации, Страница: 153 / 280

Three-positional Control valve configured in recipe 1
Parameter configuration:
Menu 2.5 Dosing
2.5.1 Dosing Mode = Control valve
Menu 2.5.5.6 Valve Control
2.5.5.6.1 Stage Setup Format = Relative
2.5.5.6.6 Current value to close = 0 mA
2.5.5.6.7 Current value to partially open = 10 mA
2.5.5.6.8 Current value to fully open = 20 mA
2.5.5.6.9 Amount for fully open = 35 %
2.5.5.6.10 Amount for partially open = 65 %
)&
①
Partially open valve
②
Fully open valve (35%)
③
Partially open valve (65%)
④
Fully closed valve
⑤
No flow
⑥
Partial flow
⑦
Full flow
8.2.8.3 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 Menu item 2.5: Dosing (Page 251).
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).
8.2.8.4 Fault handling
The transmitter fault handling provides monitoring of both dosing time and amount. The
configuration of the fault handling is done in Fault handling (menu item 2.5.5.6 for Recipe 1) .
Parameter assignment
8.2 Functions
SITRANS FC330
Operating Instructions, 01/2019, A5E44030648-AB
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