On 3/5/2017 8:22 PM, Chris Albertson wrote: > > Pulling the cover off an encoder I see three channels (rings) of slots > on a thin stainless disk. One looks like it is for quadrature > encoding and has over 1000 slots, one is an index and then there are > some S-shape over lapsing holes. I know how to figure out encoders: > Guess that two leads are power and look at the signals on the outers. > But motor voltage, max current and torques? How to figure those out?
Are they brushed DC motors, or 3-phase AC? If they are 2-wire DC motors, you can figure out the motor voltage by applying a known voltage to the motor and measuring it's speed. Current = torque, so maximum torque will be limited by how much current you dump into the motor, which will mostly be limited by heat. Again you can figure out the motor's torque constant by applying a known current and measuring the torque (or apply a known torque and measure the current required to get the motor to move). You won't know the motors designed limits, but with a voltage and current constant you can figure something reasonable and/or compare with currently available motors of similar size. -- Charles Steinkuehler [email protected] -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
