I have a converted Anilam Crusader M to linuxcnc and I was looking at the Westamp Servo amplifier and I'm not sure which model Anilam put in the machine. I think it's a 10amp cont/22amp peak, but not sure.
I have been able to find a manual for the amplifiers, but the manual uses a different part numbering scheme and I cannot discern which model is in the machine. AMPLIFIER PART NUMBER(s) ASSY 30059-75 (Part number on the blue circuit board with '75' hand-written in) MODULE 30060-75 (Part number on the sheet metal sticker - entirely hand written) MANUAL PART NUMBERS - The manual lists THREE MODELS: A651x-10C: 10amps cont/15amps peak. Switching freq 16Khz A651x-10E: 10amps cont/22amps peak Switching freq 5Khz A651x-10F: 10amps cont/30amps peak Switching freq 5Khz INPUT POWER (all models): 10VAC to 70VAC Bus power, 120Vac at 2amps Bias Power. SEM MT30M4-59 MOTOR specs: Cont Stall Torque: 3Nm Cont Stall Current: 5.6amps Torque Const: .54Nm/A Peak Stall Torque: 14Nm Peak Current: 30 AMPS Motor volt gradient: 59V/1000rpm Max armature Voltage: 140V Max RPM: 2400rpm Tacho Gradient: 9.5V/1000rpm Since I have the motor specs, knowing exactly which amplifier I have isn't that important, but as I started looking into this, I'd like to understand what the designers did... Here's a picture on ebay of the amplifier: http://www.ebay.com/itm/131240516302 I specifically showed that one because they reference the Servo Dynamics SD1525-10 (15amps cont/25amps peak). My understanding is that when Westamp closed, the engineers moved to Servo Dynamics and their SD1525-10 is a replacement for the aforementioned Westamp board. LINK to MANUAL for A6511: https://sites.google.com/site/bmklawt/home/westamp-documentation/westamp-manual This manual is from an Anilam conversion by "Bmklawt" with the help of Jon Elson. On the website, there's also links to a circuit diagram of the system. On page 18 of the A6511 manual, there is a picture of a board layout with the part number: 30059-___. This is the right manual... Since my amplifier 'squeals' something awful (assuming switching freq 5Khz) and the motor has a 30amp peak current rating, I'm making an assumption that the amplifier is an A6511-10E (22amps peak) or -10F (30amps peak). ************* MEASURED INPUT POWER TO AMPLIFIERS********* The measured spec confuses me - I measured 80Vac at the transformer output and the amplifier manual says that input power should be 10VAC to 70VAC, there might be a 15% 'overage' allowed? Or I have something wrong here? ACTUAL MEASUREMENTS 120Vac before the transformer 80Vac after the transformer 113Vdc at the Capacitor and input to amplifiers. One thing to note is that the amplifier board has a rectifier wired in and attached to the sheet metal. ***************** WHAT REPLACEMENT DRIVE?? *********************** Also, for someone wanting to replace one of these older amplifiers, what is a good replacement? John Elson had recommended a Copley 422 on a previous mailing list. I would agree that if the Westamp amplifier is the -10E (10cont/22peak), then the Copley 422 is perfect at 10amp cont/20amps peak, but if Anilam used the -10F (10cont/30peak), then the 423 (15cont/30peak) is a better choice. I suppose a question is, how much of that 14Nm do you really need?? On ebay there are some inexpensive AMC 30A8V amps, but they're only rated to 80Vdc input, too low:-( *************** WHICH ONE IS IT? ***************************** If anyone has some info on which westamp drive is actually in the system, I'd love to know. On a side note, I saw that the 29794 transistors are on ebay for between $25 and $45 each... The parts might actually be worth more than the board... Regards, Mark PS - it turns out I have some Copley 800-992, which are factory configured 422's... Might be nice to make a switch. ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
