... speed control 1) one phase and three phase 2) current: 4.5A 3) position, speed and torque control Control ... position, command pulse frequency, operation status, input/output terminal signalProtection functionOver-voltage, low-voltage, over-current, over-speed, over-load, Z-pulse missing, ... keep blinking at the same time.Signal displayON/OFF status of the I/O signal are displayed Gain tuningGain ...