Hi,
most stepper driver have photodiode/photocoupler inputs for step/direction/enable already.
Isolated inputs are nice but I don't think they are a game breaker.
Craig
Folks,
I have searched the internet for this information but have come up short each time. Sorry if I missed the proper key words!
I have an AXBB-E and I am attempting to use it with the UCCNC controller software. Currently everything is running fine but I have followed the instructions from the drivers (CL86Y, StepperOnline) and the controller. I haven't found an answer to is whether I should use isolated outputs or non-isolated outputs for the PU and DR wiring. My plan is to use this for routing and plasma cutting, thus my reason for thinking I want to use isolated ports. While all the documentation shows I should use non-isolated ports, they aren't specific to a plasma system and closed loop system. Would using isolated ports help with high frequency feedback from the Plasma Cutter?
At this time my Z-Axis is not closed loop and I don't see the need to use isolated ports because I don't have a Torch Height Control module and it will only be used when routing.
I asked the vendor I bought the controller from and they suggested I buy an upgraded controller but they also stated it was possible to use what I bought but it would involve much more wiring and that I needed to get the details from StepperOnline. StepperOnline sent me the manual that came with the drivers.
Thoughts?
Regards,
Greg
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Hi,
most stepper driver have photodiode/photocoupler inputs for step/direction/enable already.
Isolated inputs are nice but I don't think they are a game breaker.
Craig
From the AXBB-E manual
You're wiring these outputs to drives that already have isolation, so there's no reason to use the isolated outputs on the AXBB-E.
8.1.2
Digital non-isolated ports.
Port#1 pins 9. to 17. are non isolated outputs. These outputs are referenced to the 0Volt (ground) of the 5V power supply.The outputs can push/pull 20mAmps current maximum with TTL (0/5V) voltage level.The purpose of these pins are to output step and direction or other high frequency signals which require no isolation
Gerry
UCCNC 2017 Screenset
[URL]http://www.thecncwoodworker.com/2017.html[/URL]
Mach3 2010 Screenset
[URL]http://www.thecncwoodworker.com/2010.html[/URL]
JointCAM - CNC Dovetails & Box Joints
[URL]http://www.g-forcecnc.com/jointcam.html[/URL]
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