CRS ROBOT ARM Custom Cable – EDAC to CPC connector

Building a custom cable for the CRS A250 robot arm.

The cable assembly was pretty straight forward. An EDAC connector interconnected to (2) CPC connectors.

EDAC connector for Robot Arm on the  SRS-M1A Controller.
EDAC connector for Robot Arm on the SRS-M1A Controller.
Solder Type Pins are used for all the Servo Motors and also Motor Encoder Feedback signals.
Solder Type Pins are used for all the Servo Motors and also Motor Encoder Feedback signals.
Heat shrink of course is a Must!
Heat shrink of course is a Must!
The EDAC connector then Interfaces to the A250 Robot Arm through 2 CPC connectors. One is for Robot Feedback signals and the second connector is for High Current Motor Power.
The EDAC connector then Interfaces to the A250 Robot Arm through 2 CPC connectors. One is for Robot Feedback signals and the second connector is for High Current Motor Power.

It was just a very time consuming job. Had to figure out the pin connections for both CPC connectors on the Robot and then match those up to the Pins on EDAC connector on the controller.

I had the pinout information fro the Controller using the Technical Manuals I had on file, I then only had to figure out what pins the Robot CPC connectors were. These were almost a perfect match to the pinouts for the A255 Robot which I had the Technical manuals for as well. There was only a few minor differences that had to be updated.

I managed to get it working and I then proceeded to manually move the robot around using straight “JOINT” commands in the ROBCOMM-II software. At this point I am having Homing errors for the Gripper.

I realize the solution is within the Controller settings menu. A small problem with the controller not properly identifying the number of Servo motors interfaced to the Controller.

For further details see the devoted “CRS-A250 Robot” page on my Website at the link below:

http://www.digital-circuitry.com/MyLAB_Robotics_CRS-A250.htm

Cheers!

-Gerry

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