MBA-6-60
M O T O R S / D R I V E S
Amplifier for Brushless Motors
Product Description
The MBA-6-60 miniature servo amplifier is a low-cost,
easy-to-use amplifier for driving brushless servo
motors at high switching frequencies.The amplifier uti-
lizes power MOSFETs and
surface mount technology
to produce high power in a
small package.The MBA-6-
60 accepts a ±10 V range
input signal directly from
Galil programmable motion
controllers, or it can be con-
figured as a stand-alone
drive. An unregulated DC
power supply is required to
drive the MBA-6-60, which
is available from Galil as the
CPS Series described at the
end of this section.
Features
For brushless servo motors
Miniature size; only 5" x 3" x 1"
720 watts peak; 20 to 60 V DC,6 amps continuous,12 amps peak
Pulse-width-modulated at 33 KHz,97% efficiency
Protection against over-voltage,over-current,over-heating,and
short circuits across motor,ground,and power leads
Adjustable loop gain,current limit,and offset
Four-quadrant regenerative operation
Operates off single,unregulated DC supply,also available
from Galil
Surface mount technology for high reliability
No external heatsink required
MBA-6-60
Servo Amplifier
Power Rating
DC supply voltage: 20 V minimum, 60 V maximum
Peak current: 12 amps, 2 sec.maximum
Continuous current: 6 amps, internally limited
Electrical Specifications
Minimum load inductance: 200 µH
Power dissipation at max. continuous current: 18 W
Over-voltage shut-down: 62 V
Current loop bandwidth: 2.5kHz typical
Heatsink temperature range: -25° to 65° C;
shuts off if above 65 °C
Switching frequency: 33kHz
Physical
Dimensions: 5.09"
×
2.98"
×
.94"
Weight: 10 ounces
Modes of Operation
The MSA-6-60 can operate in three modes: current,
open loop (voltage), or velocity.These modes are set
by two switches: SW1 and SW3.
SW1 SW3 SW4
Current mode
OFF
ON
OFF
Voltage mode
OFF
OFF
OFF
Velocity mode
ON
OFF
OFF
The current mode of operation is the most common
setting for use with Galil motion controllers.
MO
TORS / DRIVES
82
www.galilmc.com / Galil Motion Control, Inc.
