
Motor/Feedback CME 2 User Guide
44 Copley Controls
5.3: Rotary Motor Setup Parameters
View or change the settings described below. Options vary with amplifier model. Metric
units are shown here.
Motor manufacturer’s name. Saved for reference in the motor data file.
Motor model number. Saved for reference in the motor data file.
Selects whether the parameters entered in this screen are in Metric or English units.
The rotor inertia of the motor. Used for calculating initial velocity loop tuning values.
Range: 0.00001 to 4,294 kg cm
2
. Default: 0.00001 kg-cm
2.
(Brushless only.) The number of magnetic poles in the motor. Required for correct
commutation of the motor. If the number of poles is not known,
Verify the motor’s pole count (p. 109). Range: 2 to 200. Default: 4.
The peak torque that the motor can produce. Peak Torque divided by torque constant =
motor’s peak current limit. Range: 0.0001 to 2,100 Nm. Default: 0.0001 Nm.
The continuous torque that the motor can produce. Used with the torque constant to
calculate continuous current. Range: 0.0001 to 1,000 Nm. Default: 0.0001 Nm.
Maximum speed of the motor. Used to calculate the velocity and acceleration limits for
the velocity loop. Range dependent on encoder resolution.
Relates the motor's input current to torque produced. Sometimes abbreviated as Kt.
Range: 0.001 to 1,000 Nm/Apk. Default: 0.001 Nm/Apk.
Relates the motor's input voltage to speed. Sometimes abbreviated as Ke. Used for
calculating the maximum velocity for a given amplifier bus voltage.
Range: 0.01 to 21,000,000 V/Krpm. Default: 0.01 V/Krpm.
Motor resistance line-to-line. Used for calculating the initial current loop tuning values.
Range: 0.01 to 327 . Default: 0.01 .
Motor inductance line-to-line. Used for calculating the initial current loop tuning values.
Range: see the hardware documentation.
Motor’s rated operating torque. Min: .001. Max: 1000.
Motor’s rated continuous current. Min: 0.001. Max: 1000.
Fundamental stepper motor step, in degrees. Min: 0.225. Max: 22.5. Default 1.8.
Number of microsteps per revolution of the motor.
Min: 4. Max: 100,000,000. Default 4000.
This read-only value can be used after entering Basic Step Angle to cross-check
against motor data sheet.
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