Search found 12 matches

by JorgeP
Wed Feb 13, 2019 4:52 pm
Forum: General Discussion
Topic: Questions about the safety wirings
Replies: 6
Views: 2534

Re: Questions about the safety wirings

This is one example that may help. Here is how I have done this with my design, which is most likely different than yours. I am expecting stall conditions on 1000W max rated motors (40+ Amps at 24V DC - each motor) so finding a circuit that suits the need for safety is a must. I am using an MCP263 m...
by JorgeP
Fri Apr 27, 2018 10:23 am
Forum: General Discussion
Topic: Precharge Resistor, is soldering OK?
Replies: 1
Views: 1714

Precharge Resistor, is soldering OK?

I am using a pre-charge resistor across the contacts of a constant high current relay as shown in the lower middle of the photo (green resister and metal can). I've never wired one before and would like to know if I can solder the wire to the resistor (8 awg wire) or if I should use a crimp contact ...
by JorgeP
Fri Apr 27, 2018 9:43 am
Forum: Velocity and Position Control
Topic: Encoder Placement & How does the MCP263 read the signals?
Replies: 1
Views: 2081

Encoder Placement & How does the MCP263 read the signals?

My main question, How does the MCP263 read the rotary encoders, is based off of some testing of the encoders I did before connecting them to the MCP263. When I tested my encoders which are 600 Pulses per rotation, my microcontroller can read both rising and falling edge of each channel giving me 2,4...
by JorgeP
Thu Apr 05, 2018 9:22 pm
Forum: General Discussion
Topic: TVS Diode Selection?
Replies: 3
Views: 2335

Re: TVS Diode Selection?

IMC Support wrote:The MCP263 already has TVS diode built in so you dont need to add anymore.
Thank you for clarifying. The data sheet doesn't state that unless I missed it.
by JorgeP
Wed Apr 04, 2018 6:05 pm
Forum: General Discussion
Topic: TVS Diode Selection?
Replies: 3
Views: 2335

TVS Diode Selection?

Hello again, I am having some difficulty figuring out an appropriate TVS Diode that will be appropriate for my intentions. I did a google search and found some notes by MicroSemi (PDF) on this process. To be honest, I have no idea how to perform all these calculations. I just want to get my project ...
by JorgeP
Mon Feb 26, 2018 2:33 pm
Forum: General Discussion
Topic: Python, no definition to call serial.close() to close the serial port.
Replies: 1
Views: 1439

Python, no definition to call serial.close() to close the serial port.

I read through all the code and documentation of called modules, like serial , and I don't see any definition for a call to "serial.close()'! I see at the end of "roboclaw.py" a call to open: def Open(self): try: self._port = serial.Serial(port=self.comport, baudrate=self.rate, timeout=1, interCharT...
by JorgeP
Thu Feb 08, 2018 10:36 am
Forum: General Discussion
Topic: RE: Votlage Clamp Mosfet Recommendation
Replies: 1
Views: 1638

RE: Votlage Clamp Mosfet Recommendation

I've spent a bit of time trying to find appropriate parts for my application for the protection circuitry on page 8 of the datasheet and Page 40 of the manual. I am using an MCP but I think this applies to ROBOCLAW's as well, so I am posting here because this part of the forum is more active. Info a...
by JorgeP
Wed Feb 07, 2018 9:07 am
Forum: General Discussion
Topic: Printed Manual
Replies: 1
Views: 1775

Printed Manual

Hi, Just posting because I ordered, and received, a printed manual for the MCP series from Office Depot's printing services. I ordered a basic spiral bound black and white copy for $24.00USD but they made a mistake and gave me a color copy, valued at about $65.00. I am quite impressed with how it ca...
by JorgeP
Thu Dec 14, 2017 12:08 pm
Forum: General Discussion
Topic: Are these the correct digikey parts?
Replies: 4
Views: 3280

Re: Are these the correct digikey parts?

IMC Support wrote:Hmm. I apologize. I completely missed that.
No harm done, I should have taken a closer look before I posted. I did update the list so it should be correct now. I will confirm it today when the parts come in and re-update the list if necessary.
by JorgeP
Mon Dec 11, 2017 11:49 pm
Forum: General Discussion
Topic: Are these the correct digikey parts?
Replies: 4
Views: 3280

Re: Are these the correct digikey parts?

Well, it turns out that the 15 pin connector was not the correct part, it should have been the male connector. Can't Ion Motion just make these parts available in the store? Maybe popup as a recommended item when an MCP, or other controller, is added to the cart so we are guaranteed to have the corr...