RoboteQ AX2850 user manual Power Fuses, Mcu

Connecting Power and Motors to the Controller

•Then place the load on channel 2 and verify that is also activated by commands on channel 1.

•Commands on channel 2 should have no effects on either output.

It will be safe to wire in parallel the controller’s outputs only after you have verified that both outputs react identically to channel 1 commands.

MCU

Xilinx

Jumper "open"

Place solder ball to close jumper and enable single channel mode

Single Channel

FIGURE 13. Solder Jumper setting for Single Channel Operation

MCU

Xilinx

Jumper In for

Single Channel

FIGURE 14. Jumper setting for Single Channel Operation - RevB Hardware

Power Fuses

For low Amperage applications (below 30A per motor), it is recommended that a fuse be inserted in series with the main battery circuit as shown in the Figure 10 on page 32.

The fuse will be shared by the two output stages and therefore must be placed before the Y connection to the two power wires. Fuse rating should be the sum of the expected cur- rent on both channels. Note that automotive fuses are generally slow will be of limited effectiveness in protecting the controller and may be omitted in high current application. The fuse will mostly protect the wiring and battery against after the controller has failed.

Important Warning

Fuses are typically slow to blow and will thus allow temporary excess current to flow through them for a time (the higher the excess current, the faster the fuse will blow). This characteristic is desirable in most cases, as it will allow motors to draw surges

36 AX2550 Motor Controller User’s Manual Version 1.9b. June 1, 2007