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Post by maverick on Jun 4, 2015 2:30:00 GMT
Thanos
Got your diagram and wired up accordingly and the 6DOF EXT are providing as6 feedback to the SDC2130 driver. However, running the 6DOFPlugin Test Program didn't work well as compared to the polulu model.
Is there a x-sim profile available somewhere? I guess is the x-sim axis was not setup properly
Kian
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Post by tronicgr on Jun 4, 2015 10:30:53 GMT
Hi Kian,
Can you post a photo of the connections you did so far? Just to make sure you completed correctly the loop for the PID, as you don't only need to send the position voltages from the 6DOF ext board but you also need a position feedback from the sensors to the AMC1280USB analog inputs.
Another thing is, did you removed the jumper that sets the AMC1280USB to the pololu mode? If not then you won't be able to use the 6DOF ext outputs!
Thanks Thanos
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Post by maverick on Jun 24, 2015 10:34:03 GMT
Thanos You advised to get a Sabertooth to replace the SDC2130 that broke on me. However, I got these H-drivers because could get them fast. How do I connect the output from AMC1280USB and 6-DOF ext to it. It has a DIR input that I got confused. AMC1280USB has 4 modes of output as described in your post, and mode 4 is for Sabertooth. If I were to use this driver that has a seperate DIR input, where do I find the DIR output? Any other DIP switches I need to set for 24V input. A bit of the specs here POWER(+),GND(-)。MOTOR1, MOTOR2 Voltage:3v-36v Current:20A Peak Current:50A
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Post by tronicgr on Jun 24, 2015 19:37:49 GMT
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Post by maverick on Jun 25, 2015 21:42:02 GMT
Is there a known problem for 6DOF plug to work under Windows 8.1? I had to change a Windows 7 notebook because USB port all failed on me. x-sim 3D simulation is all working but the AMC1280USB board couldn't detect data. It works well under W7.
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Post by tronicgr on Jun 25, 2015 22:16:39 GMT
Is there a known problem for 6DOF plug to work under Windows 8.1? I had to change a Windows 7 notebook because USB port all failed on me. x-sim 3D simulation is all working but the AMC1280USB board couldn't detect data. It works well under W7. Run the plugin or the xsim software under admin (right click: run as)... Else have a look in the devices to make sure the USB driver is installed correctly.
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Post by maverick on Jun 27, 2015 15:00:52 GMT
Thanos, I am back in the game.
The H-bridge that presented earlier, when a 24V is connected to Power and GND, the power supply seems to be shorted. Is this a floating voltage supply? and should I ground the GND or use the 24V V-- to GND. All these prior to connect the AMC1280USB to it.
Thanks!
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Post by tronicgr on Jun 27, 2015 15:56:38 GMT
maverick , can you post photo of the power supply connections and labels? Perhaps the h-bridge is bad if you cannot measure 24v in the input. Also you can test the h-bridge before connecting the AMC1280USB on it. Just apply 5v on the PWM input on the h-bridge and measure the output with a multimeter to see if you can see 24v there, then if you also apply 5v to DIR pin, it should reverse the polarity of the outputs.
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Post by maverick on Jul 6, 2015 2:15:51 GMT
Thanos, the power supply label is posted in this thread earlier. The circuit board might be bad. I decided not to proceed this path now, maybe later. On second thought, I am re-using the SDC2130 which I find it hard to use for a start, and also getting the broken one repair. I have connected the actuators and 6DOF ext 5V output as in the picture. The bunch of wires on the left (black, white, green) are the feedback from actuator, and those on the right (orange, red) are the output into the SDC2130 analog port. So far, the actuators do not work with 6DOF, start to suspect the input GND pin might be wrong, according to the datasheet, PIN8. Is it correct that feedback goes into the AMC1280USB, 6DOF ext out goes into SDC2130 and we tap 5V, GND into the SDC2130 too? Manually controlling the slider to input Motor Command in Roboteq software, the actuator can move but cannot stop, and perhaps the position feedback wasn't reading correctly. any ideas?
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Post by tronicgr on Jul 6, 2015 15:21:11 GMT
Make sure you have connected a common ground for both sdc2130 and amc1280usb. You could use the GND pin right below the analog outputs on the 6dof ext or a GND PIN from the main amc1280usb board.
Also check the potentiometer connections to make sure of the orientation, you may need to swap the positive-negative wires on the pots to obtain the correct position reference (or swap the motor power leads so the rotation of the motor agrees to the extent-retract of the pots).
If the sdc2130 does not have its own 5v power supply on board for its logic circuit, you could power it from the amc1280usb +5v, just be careful if the sdc2130 needs more than 200mA current, you might need external power supply. In all cases its good to connect the grounds for the logic for the signals to have a proper reference.
Thanks
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Post by maverick on Jul 9, 2015 7:20:48 GMT
The SDC2130 can detect the 6 DOF ext out. Thanks. +5v and GND from AMC1280USB were tapped to power the SDC2130 input.
One observation is that the AMC1280USB was powered on by the SDC2130 DB15 interface by any one of the three SDC2130, is this normal?
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Post by tronicgr on Jul 9, 2015 12:53:19 GMT
The SDC2130 can detect the 6 DOF ext out. Thanks. +5v and GND from AMC1280USB were tapped to power the SDC2130 input. One observation is that the AMC1280USB was powered on by the SDC2130 DB15 interface by any one of the three SDC2130, is this normal? You should disconnect the +5v between the sdc2130 and the amc1280usb. The amc1280usb should be powered only from the USB cable. Keep the common ground... Thanks
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Post by maverick on Jul 13, 2015 0:33:37 GMT
It has been removed. Thanks!
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