On Thu, 5 Jun 2008, Howard Chan wrote:
> Date: Thu, 05 Jun 2008 20:46:17 +0800
> From: Howard Chan <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
> <[email protected]>
> To: EMC User <[email protected]>
> Subject: [Emc-users] How can I connect servo encoder to 5I20?
>
> Dear All,
>
> I am using AC-Servo Motor(SANYO DENKI) which have a encoder. The encoder
> provide A and /A phase, B and /B phase, Z and /Z phase. The Pin assembly
> of HAL, there are not any pins about /A, /B and /Z phases, but there are
> provided in the 7I33T. If I would like only using 5I20 to do the control
> unit. Are there any solution to solve the problem.
> Thank you very much!!
>
> Howard
>
>
>
The 5I20 driver loads the FPGA with a configuration that includes encoder
counters in the 5I20 hardware, so when using the 5I20, EMC doesn't have to
deal with the 'bare' encoder A,B and Z pins at all, just the counters in the
5I20:
for example (from m5i20_motion.hal):
linksp Xpos-fb <= m5i20.0.enc-00-position
Peter Wallace
Mesa Electronics
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