Hello Guest it is March 28, 2024, 11:37:52 AM

Author Topic: Mitsibushi FR-D720S setup help needed.  (Read 3240 times)

0 Members and 1 Guest are viewing this topic.

Mitsibushi FR-D720S setup help needed.
« on: April 22, 2012, 10:13:28 AM »
Has anyone interfaced the Mitsibushi FR-D720S-0.75 Inverter Drive with Mach 3.
Do I need Modbus ?

Thanks

George
One step at a time!
Re: Mitsibushi FR-D720S setup help needed.
« Reply #1 on: April 22, 2012, 10:25:16 AM »
i've got fr-e520 and it's the normal enable and 0-10v
Re: Mitsibushi FR-D720S setup help needed.
« Reply #2 on: April 22, 2012, 10:25:39 AM »
have you got a manual
Re: Mitsibushi FR-D720S setup help needed.
« Reply #3 on: April 22, 2012, 11:23:27 AM »
have you got a manual

Yep, I have the standard 300page manual :-)
If its just a simple matter of hooking up the 0-10v then thats fine!
I have manage to get the inverter running in 'stand alone mode' and I'm able to control the speed of the spindle with the wee thumbwheel.
I was a bit worried of cooking the spindle at first because it was running hot, very hot. But once I found that I had to set the base frequency to 400HZ it was fine.
My chinese spindle drive (HY) dropped a phase so I thought I would buy a better quality unit. I hope I've made the right decision.

So far I have set the following parameters.

0=4
1=50 Min frequency
2=400 Max frequency
3=400 Base frequency
4=400 Multi speed setting high
5=200 Multi speed setting mid
6=100 multi speed setting low
18=400 Hi speed max frequency
79=1 operation mode fixed to 'PU'

I havent messed with any other parameters for now as the spindle seems to be running fine.

My only issue is that my cheapy Chines inverter had a 5 digit display and did show the spindle speed nicely. The display on the new inverter is only 4 digit and dispays frequency only.

Given that the 400hz spindle is rated at 220v 3Phase 400Hz 24,000rpm am I correct in assuming that with 200HZ set on the inverter drive that the spindle is running at half spped i.e. 12000rpm

And of course that 5volt would also give 12,000 rpm.
« Last Edit: April 22, 2012, 11:26:33 AM by Len-Tikular »
One step at a time!