What is in/out traction frequency in a stepper motor?
&quot;Idle In-traction Frequency&quot; propably is maximum frequency at wich motor will start and &quot;Idle Out-traction Frequency&quot; propably is maximum speed of motor. &quot;Idle&quot; means without load. In your example start is guaranted below 600 steps/second and maximum speed is not less then 1000 steps/second.
Chinese datasheets ;-)