Motor Attributes Model

The Motor Attributes define the minimal set of required attributes to support CIP Motion device interchangeability resulting in sufficient parametric data provided by the controller for any CIP Motion compliant device, for example, a drive, to control a given motor.

The Usage category for an attribute is based on the Motor Type. Where needed, Required versus Optional is further differentiated by abbreviations for PM (Permanent Magnet) and IM (Induction Motors). It is implied that these motor attributes are applicable to all drive modes, F, P, V, and T, but not applicable for the No Control axis configurations where there is no active motor control function.

For induction motors, the Motion Control Axis leverages the IEEE recommended phase-neutral equivalent circuit motor model based on "Wye" configuration. Reactance values, X, are related to their corresponding Inductance values, L, by X = ωL, where ω is the rated frequency of the motor. The prime notation, for example, X

2

', R

2

', indicates that the actual rotor component values X

2

, and R

2

are referenced to the stator side of the stator-to-rotor winding ratio.

IEEE per Phase Motor Model:

For permanent magnet motors, the Motion Control Axis assumes that all motor parameters are defined in the context of a phase-to-phase motor model.