I am not familiar with this particular inverter but I have programmed a few
of a different brand. Maybe you need to tell it to take commands from the
terminal strip. the ones I program have such a parameter.
Hope this helps
Larry
"Wooding" wrote in message
...
I've got a Mitsubishi FR-S500 inverter (actual model FR-S520S) that I want
to use to control the speed of my milling machine (metal content bit).
I've jury-rigged it to use the setting dial to control the motor speed and
its working fine. I can control the speed from barely moving, right up to
twice normal speed.

I've wired up a remote switch to start, stop and reverse the motor as
shown in section 1.7.1 of the detailed instruction manual [IB(NA)-0600027]
under the heading "Two-wire type connection (STF, STR)", but it doesn't
work. Connecting SD to STF or STR has no apparent effect at all. I've
tried it in PU and EXT mode, and still nothing.
The only parameters changed from the factory settings shown in the manual
are...
P1 100
P7 0.5
P8 0.5
P30 1
P53 1
Can anyone help please?

--

Regards, Gary Wooding
(To reply by email, change feet to foot in my address)