WESTINGHOUSE 1C31194G01

Description

WESTINGHOUSE 1C31194G01
Seating and BackSeating are similar functions, with the exception that Seating closes the
valve, and BackSeating opens it. Therefore, only Seating is described.
Retreat is an anti-windup function. It is important to remember that when the RSR servo
output is near 0 volts, the valve is stationary. When the servo output moves away from the
midpoint, the valve moves to the desired position, and the servo output goes back to near
0 volts.
Retreat is a feature that occurs after Seating. It is highly programmable.
When the target position is less than seatLimit, the RSR goes into a seating mode. In this
mode the RSR wants to close the valve as fast as possible. It accomplishes this by driving
the output hard to the rail in the direction of valve closure.
Retreat occurs after a timer has expired (retreatHoldT), and once the valve position is close
to where the RSR wants it to be (ABS|Target-Feedback| < posErrorRetreat). When a valve retreats, the servo output goes from the rail to a programmed value (exitSeatVal) at a predefined rate (retreatRate). Relay Output Module G2R 16 1C31219G01 1C31223G01 or (Base Unit) Relay Output Module KUEP (Form C or X) 12 1C31219G01 1C31222G01 or (Base Unit) RTD Interface 4 1C31161G01 1C31164G01 RTD Interface (CE Mark certified) (50-60 Hz filtered) 4 1C31161G02 1C31164G02 RTD Interface 8 5X00119G01 5X00121G01 Seq. of Events (125VDC differential) 16 1C31157G02 1C31110G02 Seq. of Events (125VDC single ended) 16 1C31157G02 1C31110G01 Seq. of Events (24/48VDC differential) 16 1C31157G01 1C31110G02 Seq. of Events (24/48VDC single ended) 16 1C31157G01 1C31110G01 Seq. of Events contact input w/48V wetting 16 1C31157G03 1C31110G03 Seq. of Events (125VDC indiv. fused com rtn) (Compact) 16 1C31233G03 5X00034G01 Seq. of Events (125VDC differential) (Compact) 16 1C31233G03 Cavity Insert 2 Seq. of Events (24/48VDC indiv. fused com rtn)) (Compact) 16 1C31233G02 5X00034G01 Seq. of Events (24/48VDC differential) (Compact) 16 1C31233G02 Cavity Insert 2 Seq. of Events (24VDC or 48VDC single ended) (Compact) 16 1C31233G01 Cavity Insert 2 Seq. of Events (24VDC or 48VDC single ended) (Compact) 16 1C31233G01 Cavity Insert 2 Serial Link Controller RS232 1 1C31166G01 1C31169G01 Serial Link Controller RS485 4 wire 1 1C31166G01 1C31169G02 Servo Driver (19VAC 1KHz to an AC LVDT) 6 1C31199G02 1C31201G02 Servo Driver (19VAC 3KHz to an AC LVDT) 6 1C31199G03 1C31201G02 Servo Driver (16VDC to a DC LVDT) 6 1C31199G01 1C31201G01 Speed Detector Interface 8 1C31189G01 1C31192G01 Valve Positioner (17 Volt 1Khz to an LVDT 82 Ohm Coil) 8 1C31194G01 1C31197G01 Valve Positioner (17 Volt 1Khz to an LVDT 250Ohm Coil) 8 1C31194G01 1C31197G02