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Epsilon Eb and EN Drives Reference Manual
will then operate more efficiently. See “Step 3: Determine Encoder Alignment” for a detailed
procedure on how to determine this parameter.
Motor Encoder U Angle
Specifies the electrical angle at which the rising edge of the U commutation track will occur
with reference to V
TS
when the motor is spun in the encoder reference direction.
At power-up the drive looks at the status of the U, V and W commutation tracks and, using
this parameter, obtains a crude (± 30 °) estimate of the electrical angle. See “Step 3:
Determine Encoder Alignment” for a detailed procedure on how to determine this parameter.
Motor Encoder Reference Motion
Specifies the direction of motion assumed in phase plots of the encoder’s quadrature and
summation signals. The supported values are CW(1) and CCW(0). Your encoder may have
the same phase plot but is generated from a different direction of rotation. This parameter
affects the way the drive interprets the quadrature and commutation signals.
Motor Inertia
This parameter specifies the inertia of the motor. The range is .00001 to .5 lb-in-sec
2
. The
drive uses this parameter to interpret the “Inertia Ratio” parameter. “Inertia Ratio” is specified
as a ratio of load to motor inertia.
Motor KE
Specifies the Ke of the motor. The units are VRMS/ kRPM. The line-to-line voltage will have
this RMS value when the motor is rotated at 1000 RPM. The range is 5 to 500.
Motor Resistance
Specifies the phase-to-phase resistance of the motor. You can determine this value by
measuring the resistance between any two motor stator terminals with an ohm meter. The
range is .1 to 50 ohms.
Motor Inductance
Specifies the phase-to-phase inductance of the motor. The range is 1.0 to 100.0 mH.
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Содержание Control Techniques EN Series
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