Getting my feet wet with Clear Path SDSK servos. Using the C86ACCP from CNC4PC.COM
Please see this thread on Power4-Hub and contacting Teknic to request they consider building one with terminal blocks instead of the Molex Sabre connectors: viewtopic.php?f=60&t=5616
Clearly using C86ACCP simplifies everything greatly. Teknic Engineers reviewed C86ACCP design schematics and cleared it for use without resistors that have been discussed on the forum. There are a few discussions still going on between Centroid and Teknic. But its been a good collaboration so far between the three companies. Its an effort to simplify the integration of SDSK/SDHP motors with Centroid Acorn.
CNC4PC.COM is designing a companion board that will provide terminals to land individual wires from a cut Clearpath Cable if you don't want to try and install a Minifit Jr. connector to mate up with the C86ACCP.
C86ACCP handles all the HLFB signals from the motors, so no need for an external relay board, it also handles the drive fault signal using a dry contact relay. It uses the standard 24VDC supplied from the Acorn power supply. In my opinion this is the best way to go when using Clearpath with Acorn and for now, using Clearpath's 10' cables and soon any length cable with cut ends. I will keep you all posted here.
To use C86 ACCP with Acorn:
1: You must set the ACTIVE AXIS jumpers to ON for the axis in use
2: Make sure ACORN ENABLE jumper is set to OFF
3: You must set the jumpers from HARD ENABLE to SOFT ENABLE. When you power the motors their rotors will be free. When CNC12 is in the ready state, the motors will enable and motor rotors will be locked. With the jumpers set like this, IF there is a fault with one of the Clearpath motor drives, it will reset when you cycle ESTOP. You will not need to power down the system.
4: You must wire 24VDC Power to C86ACCP Power terminals
5: You must connect the Normally Open Terminals of Acorn NoFault OUTPUT (Or a spare NO contact on your Estop Contactor controlled by the Acorn NoFault Output Relay to C86ACCP NO FAULT Terminals
6: You must wire C86ACCP Active Fault Output terminals to Acorn. Normally Open to Acorn input assigned to DRIVE FAULT. Center terminal to Acorn Power Supply COM.
Acorn Wired and HARD/SOFT jumper settings:
Active Axis Jumpered:
C86ACCP Power and No Fault Terminals Wired (Acorn Enable Jumper shown OFF):
C86ACCP Active Fault Output wired to Acorn Input 5 (Drive Fault) and Acorn COM:
nice job as always Marty! Thanks for taking the time and sharing, this information will help alot of users.
wanted to echo Marc's suggestion to Setup Windows systems to show, rather than hide, file extensions.
By default, Windows hides file extensions for "known file types". With that default setting, you might think you are renaming "test" to "test.cnc", but in fact you are renaming "test.txt" to "test.cnc.txt".
simple procedure, here it is:
Press the Start menu key. In the entry box, type "File Explorer Options", the click on the Control Panel component which appears in response to that search.
In the resulting "File Explorer Options" dialog box, click on the second tab, "View".
In the lower part of the View tab, under "Advanced settings", scroll down in the list until you see "Hide extensions for known file types". Uncheck the box next to that option. Click "Ok".
Now you should have an easier time telling what your files are really named.
In collaboration, Teknic, Centroid, and CNC4PC took a closer look at the issue. CNC4PC had already built resistors on the current C86ACCP.
Teknic Engineers reviewed the design and said it was sufficient. Centroid is supportive. Problem should be solved.
I have encouraged CNC4PC to either create a board or modify their board with terminal blocks in order to land individual wires, when a user has to cut the Clearpath cables. They are working on this now. I'll share more as it is available.
C86ACCP, eliminates needing the really board to handle HLFB signals and a relay with dry contacts to handle the drive fault signal.
Gary Campbell wrote: ↑Thu Feb 18, 2021 12:38 am
Marty...
Even tho I have the branded Molex crimper for Mini fit Jr connectors, sign me up for the terminal version
Gary Campbell wrote: ↑Thu Feb 18, 2021 12:38 am
Marty...
Even tho I have the branded Molex crimper for Mini fit Jr connectors, sign me up for the terminal version
I'll let you all know what shakes out...
Marty
That is great to hear, I may try using the CNC4PC board when they release it. They indicated to me that it might be available within a 3-4 weeks.
Gary Campbell wrote: ↑Fri Feb 19, 2021 10:46 am
Please note, that like some others, I am a bit hesitant to use these boards until a proper solution to secure them is in hand.
Would be nice if one of are users proficient with CAD and 3D printing could design and make some brackets for it.
Anyone? Anyone?