Flowserve MX Electronic Actuator - Manual (Page 35)

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13
flowserve.com
2. Move the valve back in the close direction and check that the close lamp illuminates just before the full close posi-
tion is reached (approximately 1/2 to 1 turn).
3. Select “YES” at the “SET OPEN POSITION LIMIT?” prompt.
4. Set Position Precision? The MX permits position to be reported to the User in either default mode of XXX% OPEN,
or single precision mode of XXX.X% OPEN. This may be preferred in Modulating or other positioning applications
such as network move-to, analog fail move-to, communication loss move-to, or ESD move-to.
If the calibration requires adjustment:
1. Select “NO” at the “SET OPEN POSITION LIMIT?” prompt.
2. Repeat the “SET CLOSE POSITION LIMIT?” routine.
NOTE: The green LED is the default setting for indicating the (CLOSE) position.
Set Open Position Limit (Handwheel Operation)
1. From the “SET OPEN POSITION LIMIT?” display, select “YES.” “OPEN VALVE OK?” will be displayed on the LCD.
2. Engage manual override as detailed in Section 3.6.1, Manual Operation.
3. Ensure that the valve is fully open.
4. Move the valve in the close direction for one handwheel turn to allow for coasting of the motor.
5. When the valve is positioned correctly, select “YES” again. The LCD will display “SAVE OPEN LIMIT OK?”
6. Select “YES.”
The open position limit is now calibrated. Check the open position limit setting as follows:
1. Move the valve in the close direction. The open lamp should extinguish with approximately one turn of the
handwheel.
2. Move the valve back in the open direction and check that the open lamp illuminates just before the full close posi-
tion is reached (approximately 1/2 to 1 turn).
3. Select “YES” at the “SET OPEN POSITION LIMIT?” prompt or “NO” to exit “POSITION SETUP?” dialog.
If the calibration requires adjustment:
1. Select “NO” at the “SELECT CLOSE POSITION LIMIT?” prompt.
2. Repeat the “SELECT OPEN POSITION LIMIT?” routine.
NOTE: The red LED is the default setting for indicating the (OPEN) position.
Set Close or Open Position Limit (Electrical Operation)
1. Enter the “SETUP” mode detailed in Section 2.1.1, Entering the Setup Mode.
2. Enter “POSITION SETUP?” routine.
3. During “CLOSE VALVE - OK?” or “OPEN VALVE - OK?,” move the red knob to “LOCAL” and use the “OPEN” and
“CLOSE” switch.
Unit will only operate locally and only in the push-to-run configuration (Inching mode). This does not exit the startup
routine—moving red selector knob back to “STOP” returns the user to the same message. This permits the valve to
be placed at its travel limits and avoids the necessity to use the handwheel. The unit will run while the black knob is
engaged with no stop limit when in this mode. Any previously set travel limits will be ignored.