Are they stepper motors?
They seem really nice but I'd need documentation to use them I suppose.
Thanks!
Strike me as having too many wires for normal steppers....
They might be 8 wire (4 winding) steppers with an encoder. To allow better guesses, you should post pictures showing how all the wires exit the motor housings. Better yet, if you have a group of 6 to 8 wires exiting from an opening, measure all the resistances between wire pairs, and post those results.
Yes, you need to get out the multimeter and identify the windings. Could be polyphase
steppers or BLDC, with hall sensors and possibly a temperature sensor or encoder or
tachogenerator.
The 5 wires entering at the back which can have its rotation adjusted by 20% or so
strongly implies hall-sensors for a BLDC. But those normally have these 5 sensor
wires and 3 wires to the windings, so there are some extra (temp sensor?)
No label or other indication of the manufacturer?
They might be 8 wire (4 winding) steppers with an encoder.
implies hall-sensors for a BLDC.
4 +4+3 = 11 wires.
anything's possible, but clearly they are not garden variety anything. They have either hall sensors (BLDC) or an encoder (stepper).
Thanks for the hints.
I saw these at a surplus store.
It sounds like they can be figured out, so I'll pick them up and do the
measurements and post.
Hold that thought...
rare, but possible is 5 coil stepper, would have 10 wires in 5 pairs.
Why would the end plate have rotation adjustment if it were a stepper?
BLDC almost certainly.
Why would the end plate have rotation adjustment if it were a stepper?
BLDC almost certainly.
Agreed. Those screws on the bottom plate are for "tuning" the motor.
Maybe optical encoders. Probably 5-8 bits of absolute output.
Try rotating the shaft, if you do not feel any indents, it's an encoder.
// Per.
Zapro:
Maybe optical encoders. Probably 5-8 bits of absolute output.Try rotating the shaft, if you do not feel any indents, it's an encoder.
// Per.
No, I don't think so, I think its a 3-phase hall sensor at the end (5 wires is the give away).
However it is an odd combination of wires, its not obvious where the 3 phases connect.
I'd like to see inside them really!