Flowserve MX Electronic Actuator - Manual (Page 46)

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13
46
4.7 Position Setup
Change Settings Menu. After successfully entering the password, answer “NO” to the Change Settings menu prompts
until you reach the prompt “CHANGE POSITION SETUP?” Answer “YES.”
4.7.1 Set Position Limits for Electrical Operation
1. Set closed valve position. At the “CLOSE VALVE–OK?” prompt, move the red control knob to “LOCAL.” Hold the
black control knob in the “CLOSE” position until the valve has reached the desired position. Move the red control
knob to “STOP.”
2. Set the open valve position. At the “OPEN VALVE–OK?” prompt, move the red control knob to “LOCAL.” Hold the
black control knob in the “OPEN” position until the valve has reached the desired position. Move the red control
knob to “STOP.”
3. Inspect for correct operation. If the position limits are set adjacent to each other then an error message will be
displayed: “KEEP OPEN (CLOSE) LIMIT?” The position calibration is now complete. The actuator will function as
ordered. Inspect for correct operation by running actuator electrically.
NOTE: For torque seated valves, ensure that the Position limit is not set at torque seat. It is recommended that the
Position limit be set approximately one handwheel turn (360˚) in the opposite direction from the torque seat.
a CAUTION: On some valves, position limits could be set adjacent to each other, so be careful that the Close and
Open limits are set sufficiently apart to permit operation. If the limits are set adjacent of each other, an error
message will be displayed: “KEEP OPEN(CLOSE) LIMIT?”
NO FURTHER MOVEMENT IS PERMITTED UNTIL THE ERROR IS CORRECTED.
Should the User elect to proceed with the setting, an error will be displayed on the screen after re-booting
stating “IDENTICAL LIMITS”. THE ACTUATOR WILL NOT MOVE UNTIL THE ERROR IS CORRECTED.
4.7.2 Set Position Limits for Manual Operation
1. Set close position. At “SET CLOSE POSITION LIMIT?” answer “YES.” At “CLOSE VALVE-OK?” depress declutch
lever and slowly rotate handwheel until clutch is fully engaged. Release declutch lever; the clutch will stay in hand-
wheel mode. If the valve is fully closed, move the handwheel one turn in the open direction to allow for coasting of
the motor. When valve is in the desired location, select “YES.” At “SAVE CLOSE LIMIT-OK?” select “YES” to set the
close position or “NO” to adjust the setting.
2. Set open position. At “SET OPEN POSITION LIMIT?” select “YES” to get “OPEN VALVE-OK?.” Engage the clutch
(see step 1). Valve should be fully opened. Move the handwheel one turn toward the closed position to allow for
coasting of the motor. When valve is in the desired location, select “YES” again to set the open position or “NO” to
adjust the setting.
3. Checking the settings. Turn the handwheel and verify that the open and close LED’s function correctly (see Checking
the Settings). If adjustments are necessary, select “NO” to return to “CHANGE POSITION SETUP?” and repeat from
step 1.