
A6 – AMP-43740 (-D3740)
Description
The AMP-43740 resides inside the DMC-40x0 enclosure and contains four sinusoidally commutated, PWM
amplifiers for driving brushed or brushless servo motors. Each amplifier drives motors operating at up to 16 Amps
continuous, 30 Amps peak, 20–80 VDC. The gain settings of the amplifier are user-programmable at 0.8 Amp/Volt,
1.6 Amp/Volt and 3.2 Amp/Volt. The switching frequency is 20 kHz. The amplifier offers protection for over-voltage,
under-voltage, over-current, short-circuit and over-temperature. Two AMP-43740s can be used for 5- thru 8-axis
controllers. A shunt regulator option is available. If higher voltages are required, please contact Galil.
Note:
Do not “hot swap” the motor power or supply voltage power input connections. If the amp is enabled when
the motor connector is connected or disconnected, damage to the amplifier can occur. Galil recommends
powering the controller and amplifier down before changing the connector, and breaking the AC side of the power
supply connection in order to power down the amplifier. The ELO input may be used to cut power to the motors in
an Emergency Stop or Abort situation.
A6 – AMP-43740 (-D3740) ▫ 241
DMC-40x0 User Manual
Figure A6.1:DMC-4040-C022-I000-D3740