|
|
|
![]() |
|
|||||||
|
||||||||
![]() |
| Thread Tools | Rate Thread | Display Modes |
|
#1
|
||||
|
||||
|
CAN Jaguar Encoder Wiring
We want to use an encoder connected directly to the Jaguar for speed control. The jaguar doc shows 5 wires to connect the encoder (5v, GND, A, B, index). The US Digital E4P that we already have just has 4 wires (5v, GND, A, B). Do we need the index wire?
|
|
#2
|
||||
|
||||
|
Re: CAN Jaguar Encoder Wiring
No, you do not need the index wire.
|
|
#3
|
||||
|
||||
|
Re: CAN Jaguar Encoder Wiring
Thanks. What the index wire used for? Do you need it for position control?
|
|
#4
|
|||
|
|||
|
Re: CAN Jaguar Encoder Wiring
Quote:
In Jaguar's case, whenever it sees an index pulse, the encoder count resets to zero. This is useful if you want to make an incremental encoder somewhat of an absolute encoder. -David |
|
#5
|
|||||
|
|||||
|
Re: CAN Jaguar Encoder Wiring
The index is a line that pulses exactly once per revolution.
I can't think of any FRC applications that would require it. In industry, you use the index pulse in combination with a home switch to determine an absolute zero location for a motor. Physical switches are notoriously inconsistent, so to zero a location consistently, you set zero at the point when the home switch is on and the index pulse happens. As long as the index pulse happen a reasonable distance from the switch turning on, you have a very consistent zero point. |
![]() |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|