User's Manual

Connecting Power and Motors to the Controller
30 AX3500 Motor Controller User’s Manual Version 1.9b. June 1, 2007
Controller Power
The AX3500 uses a flexible power supply scheme that is best described in Figure 9. In this
diagram, it can be seen that the power for the Controller’s microcomputer is separate from
this of the motor drivers. The microcomputer circuit is connected to a DC/DC converter
which takes power from either the Power Control wire or the VMot input. The diode circuit
is designed to automatically select one power source over the other, letting through the
source that is higher than the other.
VMot
Motor 2 Motor 1
M2+ M1+ M1- VMotM2- 3 x Gnd
Pwr
Ctrl
FIGURE 8. Controller Rear View and Power Connector Tabs
Note:
Both VMot tabs are con-
nected to each other in the
board and must be wired
to the same voltage.