Fault Reset Inactive (Run Command Active)

What does Cannot Reset mean?

A fault reset command was input to the drive while an active Run command was still present. The drive cannot be reset under these conditions because it is still receiving an instruction to operate, creating a logical conflict.

• A Run command (e.g., digital input S1, S2, or A1-01=1/2/3 via communication) remains active while a fault reset command (e.g., H1-0x = 3) is applied.
• The source of the Run command (e.g., PLC output, external selector switch) is stuck in the 'on' position or has faulty wiring.
• Improper sequence of operation where the fault reset is attempted before clearing the active Run command signal.
• Control wiring issue causing a continuous 'Run' signal to the drive (e.g., short circuit on a digital input terminal S1).

Click steps to track your progress.

1. 1

   1. Verify the status of all Run command sources (e.g., digital inputs, communication commands) using the drive's monitor display (e.g., U1-01 'Command Source').

2. 2

   2. Deactivate the active Run command by opening the digital input (e.g., terminal S1 or S2) or sending a stop command via communication (e.g., Modbus register).

3. 3

   3. Check the wiring to the digital input terminals assigned to Run commands (e.g., S1, S2) for any shorts, loose connections, or incorrect terminations.

4. 4

   4. Ensure the PLC or external controller is sending the 'Stop' command before attempting a fault reset instruction.

5. 5

   5. If using communication, confirm the communication master (e.g., PLC) is sending a 'Stop' instruction (e.g., writing 0 to the command register) before the reset instruction.