I'm about to buy a 5 hp. VFD drive for my hardinge CHNC. Looking at
automation direct, I see three categories of drives

Categories L100 Drives (Volts per Hertz ctrl mode)
SJ100 Drives (sensorless vector or V/H ctrl modes)
SJ300 Drives (sensorless or flux vector ctrl modes)

Not knowing squat, I'm tempted to buy the middle price one - SJ100 series.
Correct choice? What's the difference?

http://web2.automationdirect.com/adc/Shopping/Catalog/AC_Drives_-z-_Motors/AC_Drives_(Hitachi)/Hitachi_Config._Devices_-a-_Cables

You can get expert advice he
http://www.dealerselectric.com/
They are very friendly and knowledgeable. Highely recommended. Their
prices are pretty good as well.

Steve

Karl Townsend wrote:

I'm about to buy a 5 hp. VFD drive for my hardinge CHNC. Looking at
automation direct, I see three categories of drives

Categories L100 Drives (Volts per Hertz ctrl mode)
SJ100 Drives (sensorless vector or V/H ctrl modes)
SJ300 Drives (sensorless or flux vector ctrl modes)

Not knowing squat, I'm tempted to buy the middle price one - SJ100 series.
Correct choice? What's the difference?

http://web2.automationdirect.com/adc/Shopping/Catalog/AC_Drives_-z-_Motors/AC_Drives_(Hitachi)/Hitachi_Config._Devices_-a-_Cables

The SJ300 offers more sophisticated multi-motor control functions plus the
ability to take the feedback from a motor speed encoder for super accurate
speed control. For a single stand-alone spindle drive, the SJ100 should do
fine. I have one on my lathe. The L100 is the basic no-frills unit with
simple v/hz control. It would probably work OK but the low speed torque is
not as good as the SJ100.

Randy

"Karl Townsend" remove .NOT to reply wrote
in message hlink.net...
I'm about to buy a 5 hp. VFD drive for my hardinge CHNC. Looking at
automation direct, I see three categories of drives

Categories L100 Drives (Volts per Hertz ctrl mode)
SJ100 Drives (sensorless vector or V/H ctrl modes)
SJ300 Drives (sensorless or flux vector ctrl modes)

Not knowing squat, I'm tempted to buy the middle price one - SJ100 series.
Correct choice? What's the difference?


http://web2.automationdirect.com/adc/Shopping/Catalog/AC_Drives_-z-_Motors/AC_Drives_(Hitachi)/Hitachi_Config._Devices_-a-_Cables

On Sat, 02 Jul 2005 00:01:43 GMT, "Karl Townsend"
remove .NOT to reply wrote:

I'm about to buy a 5 hp. VFD drive for my hardinge CHNC. Looking at
automation direct, I see three categories of drives

Categories L100 Drives (Volts per Hertz ctrl mode)
SJ100 Drives (sensorless vector or V/H ctrl modes)
SJ300 Drives (sensorless or flux vector ctrl modes)

Not knowing squat, I'm tempted to buy the middle price one - SJ100 series.
Correct choice? What's the difference?

http://web2.automationdirect.com/adc/Shopping/Catalog/AC_Drives_-z-_Motors/AC_Drives_(Hitachi)/Hitachi_Config._Devices_-a-_Cables


Well I'm far from a expert but I just got through installing a L200
drive yesterday. So far it seems to work fine for the application
(rerolling news paper rolls). My only complaint is that the manual
could be a little better organized. It took me 4 hours to find the one
parameter which was preventing remote control of the controller.

BTW I got the L200 drive for a lot less than they're asking on that
site. You might look at this site for reference.

http://www.driveswarehouse.com

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook

Thanks for saving me $100. I just orderred.

Karl


"Wayne Cook" wrote in message
...
On Sat, 02 Jul 2005 00:01:43 GMT, "Karl Townsend"
remove .NOT to reply wrote:

I'm about to buy a 5 hp. VFD drive for my hardinge CHNC. Looking at
automation direct, I see three categories of drives

Categories L100 Drives (Volts per Hertz ctrl mode)
SJ100 Drives (sensorless vector or V/H ctrl modes)
SJ300 Drives (sensorless or flux vector ctrl modes)

Not knowing squat, I'm tempted to buy the middle price one - SJ100 series.
Correct choice? What's the difference?

http://web2.automationdirect.com/adc/Shopping/Catalog/AC_Drives_-z-_Motors/AC_Drives_(Hitachi)/Hitachi_Config._Devices_-a-_Cables


Well I'm far from a expert but I just got through installing a L200
drive yesterday. So far it seems to work fine for the application
(rerolling news paper rolls). My only complaint is that the manual
could be a little better organized. It took me 4 hours to find the one
parameter which was preventing remote control of the controller.

BTW I got the L200 drive for a lot less than they're asking on that
site. You might look at this site for reference.

http://www.driveswarehouse.com

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook

Karl Townsend wrote:
I'm about to buy a 5 hp. VFD drive for my hardinge CHNC. Looking at
automation direct, I see three categories of drives

Categories L100 Drives (Volts per Hertz ctrl mode)
SJ100 Drives (sensorless vector or V/H ctrl modes)
SJ300 Drives (sensorless or flux vector ctrl modes)

Not knowing squat, I'm tempted to buy the middle price one - SJ100 series.
Correct choice? What's the difference?
Buy the cheap one. You don't need precision positioning, just
rough speed control. The Volts/Hz mode should be fine for
a lathe spindle.

Jon

On Sat, 02 Jul 2005 23:01:43 GMT, "Karl Townsend"
remove .NOT to reply wrote:

Thanks for saving me $100. I just orderred.

Karl

You're welcome.

The L200 series seems to be a fairly versatile drive (though as I
stated I'm far from a expert). Actually that could be it's drawback
since there's so many ways to hook it up that some of the settings get
lost in the noise. Just be sure to note that if you use the logical
inputs that the #4 terminal come inverted from the factory. That's
what it took me 4 hours to find. I was using a momentary switch to
control the speed from a remote but I couldn't figure out why the
speed would never increase. It turns out that the factory setting of
that terminal cause the controller to think that the down speed button
was always being pushed.

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook

Hey, Wayne,

I'd say Karl owes you a sack of apples, at least, for your advice!

Bob Swinney
"Wayne Cook" wrote in message
...
On Sat, 02 Jul 2005 23:01:43 GMT, "Karl Townsend"
remove .NOT to reply wrote:

Thanks for saving me $100. I just orderred.

Karl

You're welcome.

The L200 series seems to be a fairly versatile drive (though as I
stated I'm far from a expert). Actually that could be it's drawback
since there's so many ways to hook it up that some of the settings get
lost in the noise. Just be sure to note that if you use the logical
inputs that the #4 terminal come inverted from the factory. That's
what it took me 4 hours to find. I was using a momentary switch to
control the speed from a remote but I couldn't figure out why the
speed would never increase. It turns out that the factory setting of
that terminal cause the controller to think that the down speed button
was always being pushed.

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook

On Mon, 4 Jul 2005 19:01:20 -0500, "Robert Swinney"
wrote:

Hey, Wayne,

I'd say Karl owes you a sack of apples, at least, for your advice!

Yep. :-)

Bob Swinney
"Wayne Cook" wrote in message
.. .
On Sat, 02 Jul 2005 23:01:43 GMT, "Karl Townsend"
remove .NOT to reply wrote:

Thanks for saving me $100. I just orderred.

Karl

You're welcome.

The L200 series seems to be a fairly versatile drive (though as I
stated I'm far from a expert). Actually that could be it's drawback
since there's so many ways to hook it up that some of the settings get
lost in the noise. Just be sure to note that if you use the logical
inputs that the #4 terminal come inverted from the factory. That's
what it took me 4 hours to find. I was using a momentary switch to
control the speed from a remote but I couldn't figure out why the
speed would never increase. It turns out that the factory setting of
that terminal cause the controller to think that the down speed button
was always being pushed.

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook


Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook