Siemens PROFIBUS PA SIPART PS2 Manual page 98

Operation
YNRM = MPOS or YNRM = FLOW
Presetting: YA = 0% and YE = 100%
Example:
YNRM = MPOS with YA = 10 % and YE = 80 %
Example:
YNRM = FLOW with YA = 10 % and YE = 80 %
Figure 4-9 Dependence on the stroke of standardization and on YA and YE in the example of an 80 mm
linear actuator
35.YCLS
36.YCDO
37.YCUP
96
4mA 7.2mA 10.4mA
0% 20% 40%
0mm 16mm 32mm
YA = 0%
4mA 7.2mA 10.4mA
0% 20% 40%
0mm 16mm 32mm
YA = 10%
4mA 7.2mA 10.4mA
0% 20% 40%
0mm 16mm 32mm
YA = 10%
Tight closing with manipulated variable
With this function the valve can be driven to the seat with the maximum
actuating force of the actuator (continuous contact of the piezo-valves).
The tight closing function can be activated on one side or for both limit
positions. YCLS becomes active when the setpoint is below YCDO or
above YCUP (figure 4-8, page 94).
Value for tight closing, bottom
Value for tight closing, up
50%
13.6mA 16.8mA
60% 80%
48mm 64mm
50%
13.6mA 16.8mA
60% 80%
48mm 64mm
YE = 80%
50%
13.6mA 16.8mA
60% 80% 100%
48mm 64mm
YE = 80%
Input current
(setpoint)
20mA
X display
W display
100%
Mechan. Stroke
(actual value)
80mm
YE = 100%
Input current
(setpoint)
20mA
X display
W display
100%
Mechan. Stroke
(actual value)
80mm
Input current
(setpoint)
20mA
X display
W display
Mechan. Stroke
(actual value)
80mm
SIPART PS2 PA Manual
A5E00127926-03