J

 sets the continuous jog speed and initiates motion at that speed if the motor is currently enabled (see EN and REMOTE) in OPMODE 0.  J is set to 0 whenever the drive is disabled or enabled, or the operational mode is changed to prevent the motor from moving when enabled.  The J command has an optional parameter of ‘for-time’, in milliseconds.   Not available when the drive is in Hold mode.

Firmware Versions:  all
Command Syntax: J [speed] {time}
 speed (required) = -VLIM to +VLIM in RPM (rotary) or mm/sec (linear)
 time (optional) = 0 to 32767 in milliseconds
Opmodes:  0 Drive Status:  en