I don't know who AT is or what your looking at, the braking resistor for the 3hp GS2 is $76 all day long.
Look by the output terminals... The AD 100 ohm 300 watt braking resistor is $65 part number GS-22P0-BR http://www.automationdirect.com/adc/Shopping/Catalog/Drives/AC_Drive_%28VFD%29_Spare_Parts_-a-_Accessories/GS_Braking_Options_%28Braking_Units_-a-_Resistors%29/Braking_Options_%28All_GS_Drives%29/GS-22P0-BR JT On 3/13/2016 10:36 AM, Gene Heskett wrote: > On Sunday 13 March 2016 10:14:26 John Thornton wrote: > >> I'm confused the braking resistor for my drive is $76... >> >> JT > AT's quoted prices on their web page, a/o this morning, were uniformly > all $435 with a note they also needed some sort of a controller > interface too, price UNK on that. > > Looking in the small booklet for this FVD, an ASKPOWER A131, they don't > offer a lot of data, but do say a 1.5 kw should use a 100 ohm resistor > that can stand 250 watts for the short duty cycle situation. But the > bigger concern is that the braking rsistor terminals P & B, are not to > be found on the customer interface, nor on the top, logic board in the > device. Possibly on the power output board, but I haven't dissed it far > enough to see that if that is where they are. > > Can anyone else advise me on this, or do I have a vfd that cannot do > this? > >> On 3/13/2016 8:47 AM, Gene Heskett wrote: >>> On Sunday 13 March 2016 09:30:30 John Thornton wrote: >>>> I just used the the one for by the drive. I "think" not all drives >>>> would use the same resistor. Just looking at the GS2 and there are >>>> 12 different braking resistors. >>> All of which are $435 a copy & still need some sort of an extra, >>> external controller. AD thinks we are growing our own money on a >>> tree in the back yard? >>> >>> I'll look at the controller I have first. I should be able to do it >>> for under a $100 Ben Franklin picture. >>> >>>> http://www.automationdirect.com/adc/Shopping/Catalog/Drives/GS2_%28 >>>> 115 >>>> _-z-_230_-z-_460_-z-_575_VAC_V-z-Hz_Control%29/GS2_Drive_Units_%281 >>>> 15_- z-_230_-z-_460_-z-_575_VAC%29/GS2-23P0 >>>> >>>> http://www.automationdirect.com/adc/Shopping/Catalog/Drives/AC_Driv >>>> e_( >>>> VFD)_Spare_Parts_-a-_Accessories/GS_Braking_Options_(Braking_Units_ >>>> -a-_ Resistors)/Braking_Options_(All_GS_Drives)/GS-23P0-BR >>>> >>>> JT >>>> >>>> On 3/13/2016 8:03 AM, Gene Heskett wrote: >>>>> On Sunday 13 March 2016 07:40:25 John Thornton wrote: >>>>>> On my GS-2 with the braking resistor I go from 1800 fwd to 1800 >>>>>> rev in 1 second. I have both acceleration and deceleration set to >>>>>> 1/2 second. >>>>>> >>>>>> JT >>>>> That would be considerably more usefull than the controllers >>>>> default of 30 seconds. Do you recall the specs of the resistor >>>>> you used? >>>>> >>>>> Thanks John. >>>>> >>>>>> On 3/12/2016 10:12 PM, Gene Heskett wrote: >>>>>>> Greetings everybody; >>>>>>> >>>>>>> Given that I note the vfd's seem to have an adjustable >>>>>>> accelleration control, and that my couple of hours playing with >>>>>>> it from its own front panel, I am led at ask the question of >>>>>>> just how fast can one of these things be reversed from say 1000 >>>>>>> rpm at the motor spindle? >>>>>>> >>>>>>> I ask because my present setup, using the OEM PM DC motor which >>>>>>> is all gear drive to the spindle, one of Jons pwm servo >>>>>>> amplifiers and a 125 volt dc supply, reversals at the turn >>>>>>> around depth of this cycle of a peck tapping operation, with the >>>>>>> spindle doing 300 rpms, is a very small fraction of a second, >>>>>>> far less than 30 degrees of rotation. Based on its reversal >>>>>>> performance at 2500 rpms being a slim second, I am concerned >>>>>>> that the vfd may not be able to reverse so quickly, and will >>>>>>> impact my use of G33.1 because of the turnaround over shoots. >>>>>>> On my lathe, with its fragile drive train and a 5" chuck, this >>>>>>> overshoot is between 2 and 3 turns at 250 running rpms. Usable, >>>>>>> but if I don't stop it soon enough, the tap may bottom out and >>>>>>> break. >>>>>>> >>>>>>> What has been the experience of others using smaller vfd's and >>>>>>> motors? >>>>>>> >>>>>>> Can you still do rigid tapping safely? >>>>>>> >>>>>>> Thanks all. >>>>>>> >>>>>>> Cheers, Gene Heskett >>>>>> ----------------------------------------------------------------- >>>>>> -- --- -------- Transform Data into Opportunity. >>>>>> Accelerate data analysis in your applications with >>>>>> Intel Data Analytics Acceleration Library. >>>>>> Click to learn more. >>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 >>>>>> _______________________________________________ >>>>>> Emc-users mailing list >>>>>> Emc-users@lists.sourceforge.net >>>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>>> Cheers, Gene Heskett >>>> ------------------------------------------------------------------- >>>> --- -------- Transform Data into Opportunity. >>>> Accelerate data analysis in your applications with >>>> Intel Data Analytics Acceleration Library. >>>> Click to learn more. >>>> http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 >>>> _______________________________________________ >>>> Emc-users mailing list >>>> Emc-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> Cheers, Gene Heskett >> ---------------------------------------------------------------------- >> -------- Transform Data into Opportunity. >> Accelerate data analysis in your applications with >> Intel Data Analytics Acceleration Library. >> Click to learn more. >> http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > Cheers, Gene Heskett ------------------------------------------------------------------------------ Transform Data into Opportunity. 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