help, when I press reverse (jog) the motor won't run.

[Calico]

I use G202 3 axis, one give me a little problem.
when I jog reverse it won't rotate smooth, but it will rotate well on forward jog.

any idea ?

I switch the motor to other 2, the motor are fine.
just onlt that 1 g202 give me that bad reverse rotatation.

I know this must be my wiring mistake, but not sure which one.

regards
rud