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 V
DC
Continuous Current:
7 A
Peak Current
10 A
Nominal Amplifier Gain
0.7 A/V
Switching Frequency
60 kHz (up to 140 kHz available-contact Galil)
Minimum Load Inductance
L
(
mH
)=
Vs
(
V
)
480
∗
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-430x0(-D3040, -D3020) is Inverter Mode. The
minimum inductance calculations above are based on Inverter mode. If you have a motor with lower
inductance, Chopper mode can be applied for the PWM output. Contact a Galil Applications Engineer
to review minimum inductance requirements if Chopper mode operation 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
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
A1 – AMP-430x0 (-D3040,-D3020) ▫ 214
DMC-40x0 User Manual