Electrical Specifications
The amplifier 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.
Supply Voltage: 20-80 VDC
Continuous Current: 10 Amps
Peak Current 20 Amps
Nominal Amplifier Gain 1.0 Amps/Volt
Switching Frequency 24 kHz
Minimum Load Inductance:
L(mH )=
Vs(V )
192∗I
Ripple
( A)
Where:
Vs = Supply Voltage
I
ripple
= 10% of the maximum current at chosen gain setting
Brushless Motor Commutation angle 120° (60° option available)
The default PWM output operation on the AMP-43240(-D3240) is Chopper Mode. Contact a Galil
Applications Engineer to review minimum inductance requirements if a lower inductance motor is
required.
Mating Connectors
On Board Connector Terminal Pins
POWER
6-pin Molex Mini-Fit, Jr.™
MOLEX# 39-31-0060
MOLEX#44476-3112
A,B,C,D: 4-pin Motor
Power Connectors
4-pin Molex Mini-Fit, Jr.™
MOLEX# 39-31-0040
MOLEX#44476-3112
For mating connectors see http://www.molex.com/
Power Connector
Pin Number Connection
1,2,3 DC Power Supply Ground
4,5,6 +VS (DC Power)
Motor Connector
1 Phase C (N/C for Brushed Motors)
2 Phase B
3 No Connect
4 Phase A
A3 – AMP-43240 (-D3240) ▫ 223 DMC-40x0 User Manual
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