Application Guide
The Glentek Nema 34 and Nema 42 servo motors are supplied with 5000 line encoders. This high resolution (20,0000 counts per revolution) provides a smoother higher bandwidth velocity loop for fine machining finishes.
To take full advantage of this high step resolution capability, the pulse data required from the Artsoft software would have to be as shown in the following example:
A milling machine with a 5 pitch ball screw traveling at 400 inches per minute would require the follow- ing calculated data rate:
400 in | 1 rev | 20,000 pulses | 1 min |
X | |||
min | 0.2 in | 1 rev | 60 sec |
In this example, 1 pulse would equal 0.00001 inches of axis travel.
If you decide to have one pulse equal to 0.0001 inches of travel in the above example, the maximum data pulse rate would be 66.7 KHz.
It is our understanding that the Sound Logic Breakout board is currently being updated to operate with the USB port of a standard computer and this will allow higher data transfer rates.
Glentek servo motors and servo amplifiers provide the highest quality and reliability as well as being reasonably priced.
Note:
When operating in the pulse and direction stepper mode, make sure to disable (inhibit) the am- plifier before powering down and powering up your command control logic. We have noticed that when removing power from some break out boards, false pulses are output to the amplifier as the power fades, and causes unwanted motion. This unwanted motion will continue until the BUS voltage of the amplifier is completely faded to zero.
It should be noted that whenever you remove the inhibit, the input pulse accumulating buffer is always reset to zero.
For additional information, refer to Glentek’s Installation and Operation Manual for Omega se- ries, pages 14, 15 and 46. Click here for the manual.
Please call Glentek’s application engineers if you need assistance.
6 Glentek Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310)
