General Operation
44 AX2500/2850 Motor Controller User’s Manual Version 1.7. February 1, 2005
direction will case the motor to spin 3 to 5.25% faster than the same command applied in
the reverse direction. Note that since the motors cannot be made to spin faster than
100%, the reverse direction is the one that is actually slowed down.
In applications where two motors are used in a mixed mode for steering, the Left/Right
Adjustment parameter may be used to make the robot go straight in case of a natural ten-
dency to steer slightly to the left or to the right.
The Left/Right adjustment parameter can be set from -5.25% to +5.25% in seven steps of
0.75%. See “Programmable Parameters List” on page156 and “Loading, Cha nging Con-
troller Parameters” on page162 for details on how to adjust this parameter.
The Left/Right adjustment is performed in addition to th e other command curves described
in this section. This adjustment is disabled when the controller operates in any of the sup-
ported closed loop modes.
Emergency Shut Down Using Controller Switches
In case of emergency, it is possibly to cause the controller to cut off the power to the
motors by depressing the Program and Set buttons simultaneously as shown in the figure
below. The controller will stop immediately without delay.
TABLE 10. Left/Right Adjustment Parameter selection
Parameter Value Speed Adjustment Parameter Value Speed Adjustment
7 None (default)
0 -5.25% 8 0.75%
1-4.5%91.5%
2 -3.75% 10 2.25%
3 -3% 11 3%
4 -2.25% 12 3.75%
5 -1.5% 12 4.5%
6 -0.75% 14 5.25%