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Post by Trip Rodriguez on Apr 27, 2017 1:24:14 GMT
Hello guys! I recently received and wired up my all new 2017 Thanos AMC1280USB, something I've been very excited about.
The documentation for the 2017 board isn't available yet so I'm not sure what settings to use for things that differ from the old board.
EDIT: I heard from Thanos, he said to use Analog 8-bit for now and bi-directional.
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Post by riton39 on Aug 14, 2017 11:13:20 GMT
""AMC1280USB Motion controller features: Easy to use LCD menu for setup of parameters needed by each type of motion platform. More parameters and options are added often as part of the continuous support for all existing users. Communication Speed 250kbps / 16-bit position demands (65535 position) via stable USB FTDI chipset. PID latency is 2ms for stabilization reasons. Internally the PID runs 1000 times per second. It can settle on an oscillation as fast a 4ms (4/1000 of a second). Easy connectors for the newly supported 12-bit SSI all digital absolute contact-less magnetic position sensors AEAT-6012-A06. Filtered connectors for the Analog feedback Position sensors for less noise. Any 0-5volts position sensors can be used. On-board PWM driver for 12-bit resolution PWM for DC motors that can be re-routed to the original PWM connector. It can also be used to create RC mini servo signals for creating scale models of motion platforms(function is about to be added in next firmware release). 12 limit switches connector for platforms that use analog sensors with single analog out driver (Sabertooth for example). New position for the LCD menu encoder knob and motor test buttons. The AMC1280USB Deluxe version also has front panel. Select modes of operation and platform type (2DOF - 6DOF). Upgrade on the 6DOF ext board: Adding a 12-bit DAC in parallel to the existing 8-bit DAC, that can be re-routed to the outputs in many combinations. Best used with the Servo signal Conditioner to output 4096 positions for AC servos that accept analog absolute position signal. The firmware is always backward compatible so all existing and future users of the motion controller to get FREE updates or additional functions on their motion controllers. New firmware revisions are often provided via the projects Dropbox storage that also holds other related files or utils which is available to everybody.""
-------------- What is the resolution on the outputs analog speed of the frequency inverters? 12 bit? What is the resolution of analog potentiometers entries? 12 bit?
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Post by tronicgr on Aug 15, 2017 12:05:53 GMT
The simple analog inputs have 10-bit resolution, with software interpolation up to 16 bit (it gets slower the higher you go). To get fast 12-bit positions, you will need the new 2017 version controllers that can accept 12-bit digital SSI sensors.
The outputs to the VFDs are standard 9-bit resolution for speed (including direction change), but in the new 2017 controllers there is additional 12-bit DAC that can be used to rewire the VFD outputs for 12-bit speeds resolution.
The old AMC1280USB simply does not have the additional 12-bit hardware support, so if you choose these features will not have any effect. I keep the backward compatibility for the lower resolution inputs outputs, as there are other features or fixes that the users might also need even if using older AMC1280USB boards.
I hope that is clear.
Thanks Thanos
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Post by riton39 on Aug 15, 2017 19:40:04 GMT
OK, I'm waiting for my new AMC 2017 to have these improvements!
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