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AX3500 Motor Controller User’s Manual 73
Connecting to Slave Controllers
In most applications, however, a separate power supply must be provided to power the
servos., as shown in Figure 42.
Note: When attempting to supply power from the AX3500 to a standard or heavy duty
servo, the current will surge every time the servo attempts to move will cause the control-
ler to reset.
Servo Connection to RevB Controllers
On AX3500 with PCB version 3.0 or higher, the 5V rail on the RC Output pins is NOT con-
nected to the controller’s internal 5V and is floating instead. It is therefore necessary to
bring the power supply for the servos to any one of the 8 headers as shown in Figure 43.
Connecting to Slave Controllers
When connecting the AX3500 to other Roboteq slave controllers, care must be taken that
the 5V outputs that is present on the Master’s RC Output connector, and on the 5V output
of the Slave connectors (pin 14), are not physically connected to one another. Otherwise,
when a controller is powered On, it will be supplying 5V, and thus be powering other con-
trollers. This will stress and possibly damage the DC/DC converter of the powering control-
To RC Output of
Master AX3500
FIGURE 41. AX3500 to Low-Power Servo Connection
External 5-6V
Supply
To RC Output of
Master AX3500
FIGURE 42. AX3500 to Standard or Heavy Duty Servo Connection
To Any Empty
Header on AX3500
To RC Output of
Master AX3500
To Servo Power
Supply or Battery
FIGURE 43. Connecting Servo and its Power Supply on RevB hardware