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Thank you to all that have supported this thread! I have learned alot from this.I have a good basis for my starting point. We have had these systems for a year now and they have ran almost perfect. We are just trying to be prepared for what the 2nd year brings us. Usually we start seeing a...

AeroPD850, After prying the encoder cover plate of 1 Yaskawa Motor, I decovered the pcb that you described and it does contain all of the resistive circuits and LED.I was wrong when I thaught it was in the servo pack.

AeroPD805, I do not think that I have any resistors on the encoder itself, I believe all of that is done back at the servo pack (Driver) for the tranfers and lifts and inside the robot controllers for the robots. I will have to destruct a motor/encoder this week to build my cable adapters...

Thank you AeroPD805 for your input. The encoders in which you decribe are exactly the type we have Approx 3,000 of them in my department only, not to mention 4 othr departments and 10 Plants in North America. I will try to use our Fluke ScopeMeter (because of portability) and I did not know...

Thank you automatic2, Yes I do have a spare encoder to work with. In a test bench senario I think we can do well with a scope, but what I'm really after is a quick method (must be under 5 minutes)for any level of maintenance tech. can check without engineering support.We have 3 shifts of...

Thank you AT1000! I have located 2 devices via google search. 1) Is a RIM Tach M100 Encoder Tester that will work for my abso enc with A,B and Z signal from www.northstar-tec.com 2) Is a USB1 Encoder Data Acquisition device from USDigital. I am hoping that this will work for my serial data...

I hope you would not think that asking the motor manufacturer was not my first step before trying to get help from people I think might have came accross this same senario in other mfg facilities !!!!!!!! They only repair the motors in Japan and do not make the encoder itself and will not tell...

I am looking for a method to determine if the encoder mounted to the motor in a production situation is good or not,where 1 minute downtime = $10,000. These encoders and not field changeable. The motor manfacturer is Yaskawa. I have 2 types 1) Encoder Type "Absolute" 2)...