Brushless Motor Connections; Figure 2-3: Brushless Motor Configuration - Aerotech XR3 Hardware Manual

XR3 Hardware Manual

2.3.1. Brushless Motor Connections

The configuration shown in
Brushless motors are commutated electronically by the controller. The use of Hall effect devices for
commutation is recommended.
The controller requires that the Back-EMF of each motor phase be aligned with the corresponding Hall-effect
signal. To ensure proper alignment, motor, Hall, and encoder connections should be verified using one of the
following methods: powered, through the use of a test program; or unpowered using an oscilloscope. Both
methods will identify the A, B, and C Hall/motor lead sets and indicate the correct connections to the
controller. Refer to Section 2.3.1.1.
feedback phasing.
For Aerotech-supplied systems, the motor, encoder and Hall sensors are correctly configured and
connection adjustments are not necessary.
A motor filter module can be installed between the drive and the motor to reduce the effects on
PWM generated noise currents.
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Chapter 2: Installation and Configuration
Figure 2-3 is an example of a typical brushless motor connection.
Figure 2-3: Brushless Motor Configuration
for powered motor phasing or Section 2.3.1.2. for unpowered motor and
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