A6.Rprt Ramp Rate 0.1 - Siemens SIPART PS2 Operating Instructions Manual
Electropneumatic positioner with and without hart
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Also See for SIPART PS2:
- Operating instructions manual (372 pages) ,
- Compact operating instructions (294 pages) ,
- Manual (200 pages)
Table of Contents
Parameter assignment
9.4 Description of parameters
Formula (uP do)
Factory setting:
A5.RPMD - Ramp mode
Setting options:
Purpose:
Factory setting:
A6.RPRT - Ramp rate
Adjustment range:
Purpose:
Factory setting:
178
uP do: Actuator moves up and down
• The actuator first moves from its start position to the upper
target position.
• It then moves from the upper target position to the lower target
position.
• After reaching the lower target position, the actuator moves
back to the start position.
Target position = Start position (A1.STPOS) ± Start tolerance
(A2.STTOL) + Stroke height (A3.STRKH)
do
• OFF
• On
Enable or disable ramp mode.
• OFF: The partial stroke test is executed in an uncontrolled
manner.
• On: The partial stroke test is executed in a controlled manner.
Control is at the ramp rate set in the 'A6.RPRT' parameter.
Use ramp mode to shorten or extend the time of the partial stroke
test. Extend the partial stroke test to give the higher-level control
loop a chance to react to the partial stroke test.
OFF
0.1 ... 100.0
Change the ramp rate to shorten or extend the duration of the partial
stroke test. The ramp rate refers to the total stroke of the control
valve and is set in % stroke per second (%/s). Smaller values extend
the duration, larger values shorten the duration of the partial stroke
test. Example: Setting '10.0' means that the partial stroke test is run
with 10% stroke per second.
1.0
SIPART PS2 with and without HART
Operating Instructions, 02/2016, A5E00074631-AB
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