gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 22, 2016 17:04:00 GMT
I was happily using my amc1280 until today. I drive 6 ac motors with encoder attached to the reduction.
My problem started with losing control over number 3 and 4. they started to move on their own. they also act like they are some how cross connected. After few attempts to trouble shoot, I recognize that I lost the encoder position display bars. reset didn' t help. I decided to upgrade/reload the firmware. at that stage, I think I did something wrong and now I can not even connect to the board. avrubd attempts and fails the connection.
please advise
Gökhan
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 22, 2016 19:11:17 GMT
after several firmware upgrade attempts, upgrade worked. now I have the 2.1c edition. now it says "ANALOG SERVO"
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 22, 2016 19:11:57 GMT
is this normal? I will try it with the motors tomorrow.
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 23, 2016 10:24:16 GMT
somehow it is stuck in analog servo mode. I remove the jumper and reset but doesn't help.
any ideas?
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Post by tronicgr on Sept 24, 2016 14:40:10 GMT
somehow it is stuck in analog servo mode. I remove the jumper and reset but doesn't help. any ideas? Can you post some photos of the settings screens from the LCD menu? Perhaps an old option in the controller is blocking it. The settings are stored in EEPROM and are not modified during firmware upgrade. You could try downgrade to v2.1b to see if you still have that issue. Also check your wiring, maybe something is loose. Thanks Thanos
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 25, 2016 17:17:12 GMT
Itried 2.0, 2.1b and 2.1c the only difference is at 2.1c which is the info onthe right hand side "analog servo. I removed all the wiring and checked. Evetything seems to be normal. It actually works perfect with the servos, with or without the jumper. I also checked if the jumper positions are shorted but no they are open. thanks for your reponse and support Attachments:
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Post by tronicgr on Sept 25, 2016 23:37:04 GMT
Take a photo of the whole amc1280usb board, I think you have placed a jumper on S1 (activates the analog servo mode).
Thanks Thanos
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 26, 2016 6:07:46 GMT
I tested with pololu board and Mini servosand they are working normal. Extension board not!..
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Post by tronicgr on Sept 26, 2016 11:08:12 GMT
I see in the photos, you have the DIP switch #4 to ON position (up), this will disable the 6dof ext output and enable the PWM outputs. Push down that #4 and your 6dof ext should work.
Thanks Thanos
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 26, 2016 16:21:57 GMT
I see in the photos, you have the DIP switch #4 to ON position (up), this will disable the 6dof ext output and enable the PWM outputs. Push down that #4 and your 6dof ext should work. Thanks Thanos Unfortunately that doesn't effect. I also tried DIP switch #4 down and still "Analog servo" as you can see inthe attached photo. Attachments:
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 26, 2016 16:28:56 GMT
I see in the photos, you have the DIP switch #4 to ON position (up), this will disable the 6dof ext output and enable the PWM outputs. Push down that #4 and your 6dof ext should work. Thanks Thanos Unfortunately that doesn't effect. I also tried DIP switch #4 down and still "Analog servo" as you can see inthe attached photo. Actuall if i put DIP switch #2 up, whole display dims a bit. I don't know if this makes any sense but here is the photos to compare #2 down and up. Attachments:
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 30, 2016 8:16:02 GMT
Here are some photos of my setup. First 3 of 7
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Sept 30, 2016 8:16:55 GMT
Here are some photos of my setup. First 3 of 7 Second 3
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Post by tronicgr on Sept 30, 2016 10:29:17 GMT
The wiring looks great. Did you check for shorts? Since you lost the analog feedback you should check the what voltage the position sensors output, with the amc1280usb connected and without.
1. With sensors Vout connected, measure the voltage on the Vout of each sensor while manually moving the potentiometers.
2. Just leave the +5v and Gnd connected on the sensors and measure the unconnected Vout right on the sensor
This will ensure that it wasn't a bad sensor responsible for the analog lines failure.
Thanks Thanos
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