What is the difference between Fire Mode (Function 52) and Force Mode (Function 53) in Altivar 21 Drive.

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The difference between the Fire Mode (Function 52) and Force Mode (Function 53) is as follows:

In Fire Mode (Function 52) the Drive will run until it fails, any Fault and/or Stop command will not work. In this function the drive cannot be stopped unless power is removed.

In the Force Mode (Function 53) the Drive runs but critical fault and/or Keypad Stop will stop the drive.

The Critical faults are:

Over Current (OC), Overvoltage (OP), motor current sensor error (Err7), Under Voltage (UP1), Ground Fault (EF2), OCP and excessive torque boost fault (E-20).

Refer attachment for the list of faults.