Flashing E on the display of the ATV21 or ATV212 drive.
The drive is in a faulted status, initiated by one of the following:
1) CMOd is set to 0 or 2, the drive is in remote mode and the keypad STOP button is pressed. Since the drive is looking for a stop command from a logic input or serial communications, the STOP button is assigned to function as an E-STOP.
2) A logic input is assigned as External Fault, functions 11 or 45, and that logic input fault is activated.
To reset the fault, either cycle power to the drive or activate a logic input that is assign as Fault Reset, functions 10 or 55.
Video uses the ATV212 drive for demonstration purposes: