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TOPIC: SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly.

SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly. 3 years 1 month ago #1771

  • jeffreya
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Hello. We have 2 SmartMotor 2340D units with firmware 415C that aren't responding correctly. One is receiving power because the LEDs are illuminated on the motor. However, it doesn't run the power-up program and it doesn't respond to commands from the SmartMotor Playground.

The other does move, however, not in the intended way. Our application effectively sends a command like 'ZS MV ADT=800 VT=600000 G\r' except VT is a variable. While our application is running, the SmartMotor responds with a surgy/stuttering rotation -- slow for a bit and then fast for a bit.

We are currently in the field and are wondering if there are any diagnostics/repair/resetting we can do to try to restore expected behavior.

Thank you.
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Re: SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly. 3 years 1 month ago #1773

  • csearcy
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Try the communications lockup wizard to establish a connection, then clear the EEPROM. If you get comms working, use the playground and put it in torque mode with just enough torque to move, but low enough were you can stop the shaft with your fingers. Rotate the shaft while holding and check for notches or jerks. It's normal to feel some detent when it passes the hall sensors and fires the FETs. If it's not smooth, you may have a damaged or failed FET. If that's the case the motor would need to come back for repair.

Note: I'm traveling today and all posts have to be approved before they appear, so don't worry if your post doesn't show up right away. I'll approve any new ones when I'm able to get back online.
Last Edit: 3 years 1 month ago by csearcy.
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Re: SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly. 3 years 1 month ago #1774

  • jeffreya
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Hello again. Thank you for you reply while traveling. We tried your suggestion with the motor that is wholly unresponsive. We re able to connect (and have been). We used the Connection Lockup Wizard anyway and cleared the EEPROM. In Torque Mode, the shat only turned a small fraction of a rev. and then there is a Peak Overcurrent flag. Claring the flags (ZS) returns the LED to green, but as soon as we start moving the slider, the LED goes red and the Peak Overcurrent flag is set again. Is this recoverable?

Thank you again for your help while traveling.
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Re: SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly. 3 years 1 month ago #1775

  • jeffreya
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As a follow-up, here are the details for the motor that is not responding to movement command:

Model: SM2340D
Firmware Version: 415C
Serial Number: E44355
Encoder Resolution: 2000
Ship Date: 10/25/2005

I had submitted a trouble ticket to Technical Support coincident with registering for this forum. Here is their response FYI.


Hi Jeff,

The one that will not move at all, what is the error reported in the playground when you try and make it move?
The first one sounds like either the motor drive stage has burnt out, or the motor itself is out.


It sounds like the second one has a failed encoder which allows it to run in torque mode, just not closed loop modes. The running full speed is a symptom of not having a limit on the position error, so the motor will max out its drive power while trying to reach a position it will never achieve.

Ultimately I do not see a way to get both of these up and running without replacing components.

Regards,
Andy

Andrew Barrett



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Tech Support Request
Customer Provided Information
Name Jeff Anderson


Referral we've been using smartmotors for years.
Application the motors are used for auv thrusters.
Product Name smartmotor
Model Number 2340d, circa 2005
Description we have 2 smartmotors that are running firmware version 415c that are not responding as commanded. one receives power, but the smarmotor playground can't make any movement occur. the other has movement, that is most reliable in torque mode, but our application requires velocity mode. in that mode, it operates inconsistently. occasionally continuing to run when told to stop, occasionally running at higher speeds than commanded. we are currently at sea so we are wondering if there's any field diagnostics/repairs we can implement to get these motors reliably functional again.
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Re: SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly. 3 years 1 month ago #1776

  • csearcy
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Sorry to say, but I agree with Andy's reply. Both motors will need to go back to the Milpitas, CA facility for repair. You may want to purchase two new motors (same model and firmware... or our newer Class5 motors) while you send the others in for repair, if downtime is critical.
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Re: SmartMotor 2340D circa 2005 w/ firmware 415C not responding correctly. 3 years 1 month ago #1777

  • jeffreya
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Hello again. Thank you for your latest reply and for providing the second, concurring opinion. Based on that preliminary assessment, is there any value in swapping the electronic back end from one motor to the servo front end of the other to try to cobble 1 working motor out of the two malfunctioning ones we have here? As I mentioned, we are in the field. What I neglected to mention is we're on a ship in the middle of the ocean. There likely will be orders/RMAs upon our return, but definitely if there's any chance to cobble something together here, we'd like to try.

Thank you again. Take care and have a great day.
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