Aerotech BAL LINEAR AMPLIFIER SERIES, User Manual

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Introduction BA Linear Series User’s Manual
1-2
Aerotech, Inc.
Version 1.5
1.2. Models, Options and Packages
A list of the available models and the voltage configurations is shown in Table 1-1.
Table 1-1. BAL Models and Voltage Configurations
Model
Standard Voltage
Configuration
Peak Output
Current
Continuous Output
Current (peak)
BAL20-40-X
±
40 VDC
20A 10A
BAL10-80-X
±
80 VDC 10A 5A
BAL10-40-X
±
40 VDC
10A 5A
Where:
X = A for 110 VAC single phase input power.
X = B for 220 VAC single phase input power.
X = C for 100 VAC sinlge phase input power.
The BAL drives feature self-commutation with analog or digital Hall effect feedback
signals. The BAL drives even include a 5 VDC, 250 mA supply to power encoders and
Hall effect devices (HEDs). Each model is jumper selectable, providing the capability to
drive both brush and brushless motors. Complete electrical isolation is provided between
the control stage and the power stage for all models of the BAL Series. This is
accomplished with a transformer isolated control voltage power supply and opto-isolation
of the drive signals, current command signals and fault signal between the control and
power stages. Each drive is fully protected against the following fault conditions:
➤
control power supply under voltage
➤
RMS current limit exceeded
➤
power stage bias supplies under voltage
➤
over temperature
➤
over current
➤
and excessive power transistor dissipation.
Operating modes include current command, velocity command or dual-phase command
(for brushless modes of operation only). For brush modes of operation, the available
operating modes are current command and velocity command. Differential inputs are used
for better noise immunity. Velocity feedback is from either an encoder or tachometer and
logic inputs include directional current limits and shutdown. Fault, current, and velocity
outputs simplify monitoring drive status. In addition, there is an option to drive three
brush motors in torque mode.