Introduction
The AMP-19540 (four-axis) and AMP-19520 (two-axis) are multi-axis brush/brushless amplifiers that are capable of
handling 500 watts of continuous power per axis. The amplifier accepts 18-80 VDC and includes breakout for all
controller I/O, including encoders, Hall-effect switches, digital inputs, digital outputs, and analog inputs (Optima
controllers only). The AMP-19520/19540 Brushless drive module can be connected to any of the following Galil
controllers via the 100-pin high density connector:
Optima Series: DMC-1200, 13x8, 1600, 1700, 1800, 2000, 2100, 2200
Econo Series: DMC-18x2, 21x2
Please use the AMP-20520/40 instead with the DMC-21x3.
Electrical Specifications
The AMP-19520/40 is a brush/brushless trans-conductance PWM amplifier. The amplifier operates in torque mode and
will output a motor current proportional to the command signal input.
Input
Voltage:
18-80
VDC
Continuous Current:
7 amps
Peak
Current
10
amps
Amplifier Gain
0.4, 0.7, or 1.0 A/V (jumper adjustable)
Switching Frequency
60 kHz (up to 175 kHz available--contact Galil)
Minimum Load Inductance
0.5 mH (low inductance option available)
Communtation Angle
120
o
(60
o
option available)
Heat Transfer
If all AMP-19520/40 axes run at less than 3 A, thermal cooling is usually not required. For axes running greater than 3
A, it is up to the user to make sure that heat is adequately transferred out of the amplifier. If the amplifier is not properly
cooled, it may reach 110
o
C and the amplifier will shut down. All electrical components inside the amplifier that
generate appreciable heat are in thermal contact with the metal back plate, so consideration should be taken to mount the
amplifier to a thermally conductive surface (e.g. metal), preferably with thermal grease.
AMP-19520/40
Introduction
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