Dual-Phase Command Configuration - Aerotech BA10 SERIES User Manual

BA10/20/30 Series User's Manual

2.4.3. Dual-Phase Command Configuration

This mode is used with a brushless motor only. In this configuration, the differential
input, pre-amplifier, and self-commutation circuits are bypassed. The dual-phase inputs
are sinusoidal and are 120 out of phase from each other. The third phase is generated by
the amplifier. The dual-phase command configuration is shown in Figure 2-9. The
advantage to this configuration is that it provides the smoothest possible motion.
MKR, MKR-N
COS, COS-N
SIN, SIN-N
Signals to Position /
Velocity / Commutation
Loop Controller
Dual-Phase Current
Commands Provided
By Commutating Controller
SIG COM
Shutdown
Fault
Figure 2-9.
Version 1.6
2
3
2
2
2
P1
2, 20 5V
7 SIG COM
SHIELD
14 SIG COM
9 ICMDA
22 ICMDB
10 SHUTDOWN
23 FAULT
1 SHIELD
Shielded Cabling
Dual-Phase Command Configuration
Aerotech, Inc.
Installation and Operation
MKR, MKR-N
HALL A, B, C
COS, COS-N
SIN, SIN-N
5V, SIG COM
Brushless Motor
Motor Phase A
A
Motor Phase B
B
Motor Phase C
C
HI
LO
Square Wave Quadrature
Encoder with Commutation
Tracks or Hall Sensors
Motor
Frame
2-11