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AX2550 Motor Controller User’s Manual 89
Analog Feedback on Single Channel Controllers
Analog Feedback on Single Channel Controllers
On Single Channel controllers (SC Version - not to be confused with Dual Channel control-
lers of which only one channel is used for position control - See “Single Channel Opera-
tion” on page 177.), the controller accepts one command and uses one input for feedback.
Feedback Wiring in RC or RS232 Mode on Single Channel Controllers
When the controller is configured for RS232 or RC command, the wiring of the feedback
must be done as shown in the figure below.
Feedback Wiring in Analog Mode on Single Channel Controllers
When the controller is configured in Analog mode, the analog input 1 is used for com-
mands while the analog input 4 is used for feedback. Note that the analog inputs 3 and 4
are only available on the AX2550 with PCB revision 6.1 or above. The PCB revision can be
found on the sticker affixed at the bottom of the case. Roborun will detect the new hard-
ware revision and display Rev B on the screen.
Analog inputs 3 and 4 have different characteristics than inputs 1 and 2, and so require a
lower resistance potentiometer in order to guarantee accuracy.
Important Notice
Feedback
2k - 10k
10 Ana2
14 +5V
5 Ground
11 Ana1
8 Ana4*
12 Ana3*
FIGURE 57. Pot wiring on Single Channel controllers (SCversion) and Analog Command
2k 2k - 10k
10 Ana2
14 +5V
5 Ground
Command
Feedback
11 Ana1
8 Ana4*
12 Ana3*
FIGURE 58. Pot wiring on Single Channel controllers (SC version) and Analog Command