3. ELECTRICAL INSTALLATION 27
Figure 3-11. EASI-V Custom Motor Configuration Window
Motor the general name/number for the motor.
Nominal
current
continuous current rating of the motor in Amps RMS.
(0.1 to 14.4)
Number of
poles
number of motor poles for a rotary servo (2 pole/pairs = 4 motor poles,
so enter 4).
Resolution post quadrature resolution of a rotary servo. For a resolver use 4096.
Note:
post quadrature is the number of encoder lines ‘seen’ by the drive
electronics after the encoder signal has been processed.
Rated speed shaft speed in rpm for a rotary servo.
Resistance resistance of a single phase winding measured line-to-line in Ohms.
Inductance inductance of a single phase winding measured line-to-line in mH.
Inertia
inertia of a rotary servo stator measured in Kgm
2
.
Kt torque constant of the motor (Torque/Current) measured in Nm/A peak.
Damping viscous damping of the motor caused by such things as iron losses,
measured in Nm/Krpm.
Thermal time
constant
a constant that determines how slowly or quickly the motor temperature
rises to its final steady-state value measured in seconds.
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