Slip Equation
The sync speed unit is fixed at min
–1
or rpm. To determine the slip, configure the rotating speed scaling factor so
that the unit of the rotating speed is also min
–1
(or rpm).
Slip (%) = ×100
SyncSp
−
Speed
SyncSp
SyncSp: The synchronous speed (min
–1
)
Speed: The rotating speed (min
–1
)
Set the frequency measurement source to a stable voltage or current signal that is being applied to the motor
and that has low distortion and noise.
Electrical Angle Measurement (Electrical Angle Measurement)
This item is appears on models with the harmonic measurement option or the simultaneous dual harmonic
measurement option.
Turning Electrical Angle Measurement On and Off
Select whether to measure electrical angles.
Electrical Angle Correction (Electrical Angle Correction)
Set the electrical angle correction value.
Correction Value (Correction Value)
Set the correction value to a number from –180.00° to 180.00°.
Clearing the Correction Value (Clear Correction)
Set the correction value to 0.00.
Automatically Computing the Correction Value (Auto Enter Correction)
The WT1800 automatically sets the correction value to the difference between the phase of the voltage or
current whose correction value is being automatically computed and the current electrical angle phase.
Voltage or Current to Automatically Compute the Correction Value of (Auto Enter Target)
Select the voltage or current to automatically compute the correction value of from the options below. The
available options vary depending on the installed elements.
U1, I1, U2, I2, U3, I3, U4, I4, U5, I5, U6, and I6
4 Motor Evaluation Conditions (Option)
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