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 142 of 206
Feedback: The actual position of the final control element in units defined in
the POSITION_UNITS parameter.
Working Position: Hall sensor value in engineering unit defined in the
POSITION_UNITS parameter.
Position: The result of reverse characterization of the
WORKING_POSITION parameter value.
Feedback Source: Select which position value will be copied to FEEDBACK_VALUE
parameter. The available sources are the Working Position and
Position.
10.3.5 Units
A sub directory ICoT PA, it has a group to configure the engineering units used to
display the readings of the device's sensors.
Position Unit: Engineering unit for the position, defined in the AO.PV_SCALE
parameter.
Working SP: Process variable from the analog output block after
characterization, FLOP and reverse acting (SIGNAL_ACTION) in
POSITION_UNITS
Working Position: Hall sensor value in engineering unit defined in the
POSITION_UNITS parameter.
Pressure Unit: Engineering unit for the pressure sensor’s value.
Supply Pressure: Pressure sensor value - reserved for future use. (The current
manifold has pressure sensor only on one output - port A).
Pressure Port A: Pressure of manifold output port A - It is located in the port A. Its
unit is defined in the PRESSURE_UNITS.
The accuracy over the span is ± 2% between 0 - 50ºC.
The offset has a variation of 3.5% for each 1ºC of variation.
If the unit is %, then 100% is the maximum pressure used in the
