14 Jan
2011
14 Jan
'11
2:28 p.m.
seems that instead of requiring a particular time
between step pulses,
these drives allow the controller to step as fast as it likes and they
What happens with one of these drives is you slow the steppign rate (at
the cotnroller) right down, say to 20ms steps? Does it still sometimes
kil the index pulse?
Is this behavious properly documented anywhere? I guess that the days of
getting OEM and service manuals for such drives are long gone :-(
Pete Turnbull tells me that the TEAC data sheet for the FD-235HF series
mentions it. He also has a write-up on the issue here:
http://www.dunnington.u-net.com/public/BBC/index_and_READY.html
Regards,
Peter Coghlan.