XC2 Hardware Manual
Chapter 2: Installation and Configuration
2.2.1. Brushless Motor Connections
The configuration shown in
is an example of a typical brushless motor connection.
Figure 2-3:
Brushless Motor Configuration
Table 2-7:
Wire Colors for Aerotech-Supplied Brushless Motor Cables
Pin
Wire Color Set 1
(1)
Wire Color Set 2
Wire Color Set 3
Wire Color Set 4
Green/Yellow &
Shield
(2)
Green/Yellow &
Shield
Green/Yellow &
Shield
Green/Yellow &
Shield
A
Black
Blue & Yellow
Black #1
Black & Brown
B
Red
Red & Orange
Black #2
Red & Orange
C
White
White & Brown
Black #3
Violet & Blue
(1) Wire Color Set #1 is the wire set typically used by Aerotech.
(2) “&” indicates two wires (Red & Orange); “ / ” indicates a single wire (Green/White).
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
for powered motor phasing or
for unpowered motor and
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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