Siemens SITRANS VP300, Руководство по эксплуатации

Страница: 76 / 190

Operate
6.2 Parameter description
SITRANS VP300 with or without HART
74
Operating Instructions, 03/2011, A5E01258666-03
"2.1.6 Upper travel range limit"
Factory setting: 100.0 %
Setting range: 0.0 ... 100.0 %
Purpose: Specifying the upper limit for the adjustable actuator travel.
Description: Use this parameter to limit the adjustable actuator travel. This allows
the adjustable travel range of the actuator to be restricted to the
effective flow and the integral saturation of the master controller to be
prevented. The value of the lower travel range limit must always be
smaller than the value of the upper travel range limit.
"2.1.5 Lower travel range limit" (Page 73)
"2.1.7 Valve direction of action
NOTICE
Changing the valve direction of action
Do not change the valve direction of action in control mode. Otherwise the positioner may
interpret an incorrect actual value.
Factory setting: Standard
Setting option:
 Standard

Inverted
Purpose: To set a direction of action for the valve which differs from the
standard.
Description:

Standard: For an increasing, i.e. clockwise, valve direction of
action
 Inverted: Opposite direction of action
You change the valve direction of action after initialization as follows:
1.
Reset the initialization of the positioner with the parameter "1.4.1
Reset initialization" (Page 69).
2. Change the valve direction of action.
3. Initialize the positioner once again.
"2.1.8 Display mode"
Factory setting: Position
Setting options:
 Position [%]

Flow [%]
 Position [mm] or [°]