Selecting the right driver

[Lee Roberts]

Hi Irving, thanks for taking the time to go into details I appreciate it.

Now I don’t have one of the motors on the data sheet to hand, but I’m confident that this will be the same…

On the motors I have got here in front of me ( two different manufacturers ) the wire's coming from the motors is only 16/0.02, this motor is 4.2a in bipolar parallel setup.

I’ve looked at a few different websites selling the 16/0.02 equipment wire and they all seem to say that 16/0.02 wire is rated at 3a, if that is true then the wire on these motors is under rated for what the motor could potentially be doing ?

[irving2008]

Hi Irving, thanks for taking the time to go into details I appreciate it.

Now I don’t have one of the motors on the data sheet to hand, but I’m confident that this will be the same…

On the motors I have got here in front of me ( two different manufacturers ) the wire's coming from the motors is only 16/0.02, this motor is 4.2a in bipolar parallel setup.

I’ve looked at a few different websites selling the 16/0.02 equipment wire and they all seem to say that 16/0.02 wire is rated at 3a, if that is true then the wire on these motors is under rated for what the motor could potentially be doing ?

Assuming an 8-wire motor, the motor wires only carry 2.1A, remember that the 4.2A is for bipolar parallel operation with 2 windings in use, 2.1A per winding. 16/0.2mm cable is rated for continuous 3A capacity. For the cables connecting to the driver, which are carryig 4.2A you should use 24/0.2mm which is rated at 6A continuous