WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 154 of 206
Proportional-Action Coefficient 1: Proportional-action coefficient for both moving
directions.
Derivative-Action Coefficient 1: Derivative-action
coefficient for both moving directions.
Integral-Action Coefficient 1:
Integral-action coefficient for both moving directions.
Stroke Time Unit: Time unit to be used in the SPSR test.
Set Point (SPSR): Set point used during SPSR test.
SPSR Test Pause: Time interval that the SPSR test should maintain the valve at
SPSR_SP.
Stable Timeout (SPSR): Maximum time allowed for the SPSR test to finish.
Stable Time (SPSR): Measured time in which the valve took to reach and stabilize at
the setpoint during last test.
Start Test: Use it to start the capture of setpoint step test response.
Read Last curve: This option will read the curve points and stable time with the last
setpoint step response.
Result SPSR Test: Result of last FST. Valid values:
no result: test running
success: test finished with no error
Fail - SP wasn't reached
Fail - Position oscillating beyond dead band.
Aborted by external reason.
No supply pressure
6 – The test was aborted because there is not enough memory to
store all points. Change the gains to improve the reaction time.
Transfer: Clicking over this button will trigger write commands for the values changed
by the user.
Messages: Access the log
Close: Close the window.
10.3.12 Characterization
Curve
This option is available at Device/Characterization curve. Use this feature to configure
and visualize the characterization curve.
