RL02s available

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Fri Oct 15 08:31:25 1999

>there are 5 RL02 drives sitting at a scrapper in the San Diego area.
>All Computer Surplus 297 S Marshall Ave El Cajun
>Since I am travelling, no time at hand, and furthermore facing the 50 Hz/60 Hz
>problem, I could not do anything about it.

Now I've never used a RL02 drive on 50Hz power, but I'm 99% certain that
the motor speed in a RL02 is determined by a servo loop, and thus
not locked to a multiple of the AC frequency.

I think the fan in a 50Hz RL02 will run a bit slower, but I don't think
this will hurt anything.

The power selector blocks on the back of the drive allow the selection of
90-128VAC or 180-256VAC.

All my (US) RL02 drives have stickers on the back saying "120V, 60Hz",
but I think the voltage is just the factor configuration and the "Hz" is
just an anachronism.

In my RL01/02 books the presence of a 50Hz option isn't even mentioned,
though the tables specify that it's designed for 60Hz power.

If folks know otherwise, they're welcome to correct me!

John G. Zabolitzky
Received on Fri Oct 15 1999 - 08:31:25 BST

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