Ok I've had another look the encoders have incr encoder utoph 20a wm written on them here are more photos of Bob
The two LEDs on the left go on and off when I flick home /limit x and y the led on the right says pause if I disconnect the wire it goes out but still no movement

Here are the motor outputs there are two for each motor at the bottom the two at the top are 5v and ground is this motor enable?
Here are my isolated out puts could one of these be motor enable?



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