Flowserve ESP3 Electronic Servo Positioner - Manual

© 2001, Flowserve Corporation, Provo, Utah
3-Position Control/Dribble Control
SR Limit Switch Method
Flowserve Corporation 765 South 100 East Phone: 801 373 3028
Flow Control Division Provo, Utah 84606 Facsimile: 801 489 2228
Automation Business Unit www.flowserve.com Email: [email protected]
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
LMP0003-1 (AUTO-42) 04/01 Page 1 of 4
ESP3 Electronic Servo Positioner
Automax electric actuators with servo control are factory adjusted
for 90 degree operation and shipped in the full clockwise (CW)
position as viewed from the motor side.
WARNING (SEE NOTE 6 ON PAGE 4)
DO NOT CONNECT SHORT CIRCUIT TO MOTOR LEADS
WHILE MOTOR IS CONNECTED TO ESP3 - SERIOUS
DAMAGE WILL RESULT AND WARRANTY VOIDED.
Specifications
Power 110-125V, 50/60 Hz
Requirement* 5W @ 115 VAC
Temperature** -40
°
F (-40
°
C) to 160
°
F (70
°
C)
Approvals UL recognized
CSA certified
Range Of 30
°
to 180
°
rotational span
Adjustability
* Options availability for 240 VAC or 12/24 VDC applications.
** Options available for high humidity/outdoor use.
Servo Control Input Options
1. Connect input signal to TB1 terminals marked +IN and
-IN (4-20mA configuration is supplied as standard).
Type of
Input
RESISTIVE
VOL
TAGE
CURRENT
(see notes on p.2)
(250 Ohm Shunt)
Signal Board Adjustment
4 to 20 mAdc Input Jumper JP1 to the left
1 to 5 mAdc Input Jumper JP1 to the right
10 to 50 mAdc Requires special board.
Consult factory.
0 to 5 Vdc Input Jumper Removed
2 to 10 Vdc Input Jumper Removed
1 to 10 Vdc Input Jumper Removed
1.5 to 135 Ohm Requires special board.
Consult factory.
1.5 to 1000 Ohm Input Jumper Removed
Direct or Reverse Acting
Make sure valve and actuator rotate in the same direction and
are in the same position, i.e. valve full CW, actuator full CW.
1.
Standard units are direct acting:
Low input (e.g. 4 mA) = CW
High input (e.g. 20 mA) = CCW
2. To make reverse acting, place jumpers JP2 and JP3 to ‘R’
positions on ESP3 and proceed with Valve Alignment and
Servo Calibration. For reverse action with ESP3 Transmitter,
see notes on page 2.
Valve Alignment and Servo Calibration
Note: Standard units are calibrated for 0 to 90 degree operation.
Units may be recalibrated for 180 degree operation.
1. Connect 115Vac/60hz power to terminals marked L1, N, and
GND. Power should be fused with an in-line 5 amp slow-
blow fuse. ESP3 may be run on 50hz, but actuator may be
affected. See specific actuator I.O.M.
2. Safety overtravel switches disconnect the motor if the
actuator overtravels approximately 5 degrees past the full
CW or CCW position. On valves with mechanical stops, the
safety overtravel switches need to be set so that the motor
will not disconnect prior to hitting a mechanical valve stop.
See notes 3 and 6 under “Trouble Shooting” on page 4
before adjustment.
3. Minimum Position Adjustment:
•
For Direct Acting: Apply minimum input signal to
ESP3 terminals +IN and -IN and adjust zero ‘Z’
potentiometer until actuator stops at full CW
position and CW LED turns off. Turn the ‘Z’
adjustment CW to move actuator CW.
•
For Reverse Acting: Apply minimum input signal to
ESP3 terminals +IN and -IN and adjust zero ‘Z’
potentiometer until actuator stops at full CCW
position and CCW LED turns off. Turn the ‘Z’
potentiometer CCW to move actuator CW.
4. The voltage at test point ‘A’ referenced to test point ‘G’
should be approximately 0.75 Vdc. If not, see note #4 under
“Trouble Shooting”.
5. Maximum Position Adjustment:
•
For Direct Acting: Apply maximum input signal to
ESP3 and adjust span ‘S’ potentiometer until actuator
stops at full CCW position and CCW LED turns off.
•
For Reverse Acting: Apply maximum input signal to
ESP3 and adjust span ‘S’ potentiometer until actuator
stops at full CCW position and CCW LED turns off.
6. Due to Zero-Span interaction, repeat steps 3 and 5 until
actuator positions repeat at both ends of travel
(usually 2 to 3 times).