On Tue, 17 Apr 2012, Andrew wrote:
Date: Tue, 17 Apr 2012 03:00:48 +0300
From: Andrew <[email protected]>
Reply-To: "Enhanced Machine Controller (EMC)"
<[email protected]>
To: "Enhanced Machine Controller (EMC)" <[email protected]>
Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors
17 ???????????? 2012 ??. 02:27 Peter C. Wallace <[email protected]>
??????????????:
What is the 7I39 motor voltage ?
What are the motor ratings (current /voltage)?
Do the encoders work now (because not working encoders suggests a
wiring/cable error)
I give 44V to 7i39. But tomorrow I better use 24V PSU>.
Calculated motor voltage is near 45-50V at 1m/s, peak current is 4.5A.
The motor jerks very strong when I touch its wires to power line.
Encoders work (not in this short config, of course).
I would not start at a voltage so close to the limits when first testing
Along with strange encoders that might look like 7i39 malfunction, but 2
broken cards... not probable.
What I am asking is if the 7I39 encoder inputs work normally now
If not, this still suggests a wiring error of some kind.
Peter Wallace
Mesa Electronics
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