Hi Scott,
The biggest risk is loss of position. Stepper motors are open loop systems, and stopping without decelerating can create conditions where the motor position is unknown for the next move.
Motor manufacturers usually provide specifications that state the maximum starting and stopping speed to avoid loss of position.
If loss of motor position can be tolerated, the motor current shown above can be tolerated.
The biggest risk is loss of position. Stepper motors are open loop systems, and stopping without decelerating can create conditions where the motor position is unknown for the next move.
Motor manufacturers usually provide specifications that state the maximum starting and stopping speed to avoid loss of position.
If loss of motor position can be tolerated, the motor current shown above can be tolerated.