Search found 1186 matches

by Basicmicro Support
Mon Jun 24, 2019 10:14 am
Forum: General Discussion
Topic: Current Limiting Measurement
Replies: 2
Views: 19

Re: Current Limiting Measurement

It limits the current to the motor individually on each motor channel. Basically its a simple PI controller on the current reading with blanking for low duty cycles(eg turns of current limiting on low duty cycles).
by Basicmicro Support
Mon Jun 24, 2019 10:12 am
Forum: Velocity and Position Control
Topic: 2X15A powered by USB, LB-IN and Main Battery
Replies: 5
Views: 50

Re: 2X15A powered by USB, LB-IN and Main Battery

Good. Anything you need help with at this point? If you want to go back to a higher gain on the opamps you may need to add some pre-filtering. You can do this by either putting a RC filter before the opamp input or you can do a trick and add a cap across the feedback resistor on the opamps. Function...
by Basicmicro Support
Thu Jun 20, 2019 10:10 am
Forum: General Discussion
Topic: Broken USB connectors
Replies: 1
Views: 22

Re: Broken USB connectors

We recommend you send them in to have the USB connector reinstalled. It is very easy to damage the signal traces under those connectors. If they are damaged they are un-repairable. If you send them in to be repaired include your return address on a note inside the package. Ship to our main contact a...
by Basicmicro Support
Wed Jun 19, 2019 10:03 am
Forum: Velocity and Position Control
Topic: 2X15A powered by USB, LB-IN and Main Battery
Replies: 5
Views: 50

Re: 2X15A powered by USB, LB-IN and Main Battery

That helps a little. You should be able to test the opamp output before you start tuning the motors. Just manually move the motor(or use the PWM Settings screen) to slowly move the motor through the range of motion you want to use. If your output from the opamp isnt 0 to 2v adjust the trim pots unti...
by Basicmicro Support
Tue Jun 18, 2019 9:56 am
Forum: Velocity and Position Control
Topic: 2X15A powered by USB, LB-IN and Main Battery
Replies: 5
Views: 50

Re: 2X15A powered by USB, LB-IN and Main Battery

LB in requires 5.5v minimum and main battery will provide logic power unless it drops below the LB+- voltage anyway. Im not sure what you are thinking in regards to using LB in. Do you think power is a problem to your opamp? It is very unlikely since the 5v rail of the Roboclaw can source up to 3amp...
by Basicmicro Support
Tue Jun 18, 2019 9:52 am
Forum: Velocity and Position Control
Topic: Wrong Encoder Reading with roboclaw.Duty command
Replies: 1
Views: 27

Re: Wrong Encoder Reading with roboclaw.Duty command

It sounds like something is wrong with your encoder signal. Check the encoder signal on an oscilloscope if you have access to one. If you are using a motor with the built in hall encoders(eg the really inexpensive encoders) this have a known issue with passing motor noise into the encoder signal lin...
by Basicmicro Support
Mon Jun 17, 2019 10:04 am
Forum: General Discussion
Topic: How to read if E stop is active
Replies: 1
Views: 46

Re: How to read if E stop is active

1. GetPinFunctions is not the correct command if you want to see the "state" of the E-Stop pin. You should use the ReadError command. Also, the return values have changed as of the latest release. See the post linked below until the new manual has been released(sometime this week I expect). https://...
by Basicmicro Support
Mon Jun 17, 2019 9:57 am
Forum: General Discussion
Topic: Home switch State
Replies: 6
Views: 107

Re: Home switch State

Thanks that was the information I needed. Please download the python library from the server again. I've updated it. Apparently, the change was only in the development copy and not put in the release directory yet. It has been now.
by Basicmicro Support
Fri Jun 14, 2019 9:50 am
Forum: General Discussion
Topic: Overheating of Roboclaw Solo 60A
Replies: 1
Views: 47

Re: Overheating of Roboclaw Solo 60A

You are most likely experiencing overheating because your load is resistive. A purely resistive load will be a large amount of ripple current through the DC Link capacitors. This will cause them to overheat and shorten their life expectancy drastically. You are effectively turning the Roboclaw into ...
by Basicmicro Support
Fri Jun 14, 2019 9:41 am
Forum: General Discussion
Topic: Home switch State
Replies: 6
Views: 107

Re: Home switch State

The python command to read status returnsxz a 32bit value. Post your code or email support@basicmicro.com and I'll take a look at it.