Installation and Configuration
Npaq MR Hardware Manual
2.3.1. Brushless Motor Connections
The configuration shown in
is an example of a typical brushless motor connection.
1
2
3
4
5
AC
Brushless
Motor
Motor Frame
Phase C
Phase B
Phase A
Figure 2-5:
Brushless Motor Configuration
Brushless motors are commutated electronically by the controller, typically using Hall-effect devices. If you
are using standard Aerotech motors and cables, motor phasing adjustments are not required and this section
may be skipped.
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
for powered motor phasing or
for unpowered motor and
feedback phasing.
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Chapter 2
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