
Appendix B: Motor-Power Board Connectors
Appendix B
Power Distribution
Activ
Media Robotics’ original H8S-based robots have two separate boards which
interface with the H8S microcontroller and provide power for the motors as well as
conditioned power and signal paths for the standard and accessory onboard
electronics. The new
Plus
-series robots have just a single Motor-Power Board. Consult
Appendix A
for H8S-controller and User Control Panel interface details.
N
EW
P
LUS
M
OTOR
-P
OWER
B
OARD
The new Motor-Power Board for the Performance PeopleBot
Plus
robot contains all the
features of the two-board legacy system with lots more.
Figure 22. New
Plus
Motor-Power Board
Configuration for Current and Temperature Sensing
The motor drivers are configured to limit 10A per motor.
The
Plus
Motor-Power board also has a set of 0-ohm resistor pads that may be configured
to engage the analog-to-digital input ports AN1 and AN2. By adding jumpers to R60 and
R62, for example, the board is configured to sense motor current draw on AN1 and AN2,
respectively.
Instead, by jumpering R77 and R78 and by attaching temperature sensors to two motors
via the Motor Temperature Sensors connector, the AN1 and AN2 ports respectively may
be used to protect against motor overheating. This configuration is currently enabled in
the new AT8
Plus,
but not yet supported in AROS.
66