On 22 Jun 2015, at 18:48, Tom Easterday tom-...@bgp.nu wrote:
How do I set the minimum spindle speed so that the user can’t command a speed
below 275rpm?
It's probably best done in the VFD but the HAL deadband component is an
option.
If spindle motor is an asynchronous motor and simple voltage frequency control.
Are your sure voltage frequency characteristics are correctly set?
If motor get hot on low RPM even then not loaded you will almost certainly use
to high voltage.
Nicklas Karlsson
On Mon, 22 Jun 2015 13:48:23
Hi Tom.
Have you tried to configure the VFD in Sensorless Vector Mode ?
Please can you detail the brand and code manufacturer of your VFD ?
Alex
On Tue, Jun 23, 2015 at 9:44 AM, Karlsson Wang
nicklas.karls...@karlssonwang.se wrote:
If spindle motor is an asynchronous motor and simple voltage
On 6/22/15 11:48 AM, Tom Easterday wrote:
I am controlling a spindle motor with a VFD commanded by modbus. My current
speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current
spikes and triggers the VFD’s protection shutoff. How do I set the minimum
spindle speed so that
On 22/06/15 18:48, Tom Easterday wrote:
I am controlling a spindle motor with a VFD commanded by modbus.
Which VFD? The ones I use have many settings, and adjusting the speed
range and acceleration up to speed are all part of them.
--
Lester Caine - G8HFL
-
Contact
I am controlling a spindle motor with a VFD commanded by modbus. My current
speed range is 0-3500 rpm. If I run the spindle below 275 rpm the current
spikes and triggers the VFD’s protection shutoff. How do I set the minimum
spindle speed so that the user can’t command a speed below 275rpm?
Look to see if the VFD has a minimum speed command setting.
N. Christopher Perry
On Jun 22, 2015, at 1:48 PM, Tom Easterday tom-...@bgp.nu wrote:
I am controlling a spindle motor with a VFD commanded by modbus. My current
speed range is 0-3500 rpm. If I run the spindle below 275 rpm the
