GE VMIVME-1150-133 Communication card

Actuator Calibration The actuator output from the control can be stroked (or calibrated) from the Service Menu O** ACTUATOR CALIBRATION **. Set TRUE the CALIBRATION ENABLE to calibrate the actuator or valve. Adjust 0% position related to the OFFSET, and 100% position related to the GAIN by moving the DUMMY SIGNAL. When the valve position (%) is equal to 0%, the actuator should be below minimum. This is important. 

The actuator must have sufficient 

under-travel at the minimum stop to ensure that the actuator can fully close the steam valve completely. When the valve position (%) is 100%, the actuator should be at maximum to ensure full load can be attained. This process of going between minimum and maximum will have to be repeated several times before the initial start to ensure the actuator and linkages are properly set up. STEAM TO THE TURBINE MUST BE SHUT OFF BY OTHER MEANS DURING THIS PROCESS. Overspeeding the turbine will cause damage to the turbine and can cause personnel injury or death to personnel.

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