Flowserve MX Electronic Actuator - Manual (Page 82)

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13
82
4.21 Diagnostic Reset
For diagnostic purposes the following parameters are recorded at certain points in the valve travel on every opening
and closing stroke:
• Proportional measurements of torque
• Drive sleeve turns
• Contactor operations
• Maximum and minimum voltage
• Motor run time
• Stroke time
To enable the new values to be compared with previous measurements, it is essential to record reference values.
Limitorque recommends this be done after the valve has been installed, commissioned, and is operating under normal
process conditions, and after a plant shutdown or actuator/valve overhaul. The user may select to reset the torque
profile at any time.
1. Select “RESET TORQUE PROFILE?” from the “RESET DIAGNOSTICS” routine.
2. Select “YES” to enter the “SAVE NEXT CYCLE?” display.
3. Select “NO” to switch the reset ON or OFF.
After the next complete cycling of the valve, in both the open and close directions, this reset will automatically be
switched OFF.
4. Select “RESET COUNTERS” to reset all the listed parameters to “0.”
Figure 4.35 – Diagnostic reset
YES YES
YES
NO
NO
YES
NO NO
Resets: Drive sleeve turns
Contactor operations
Maximum voltage
Minimum voltage
Motor run time
Stroke time
CHANGE DIAGNOSTICS
RESET?
RESET TORQUE
PROFILE?
RESET COUNTERS
OK?
SAVE NEXT CYCLE
OK?