Cause: Hardware monitoring active comes when there is hardware issue in drive power card or control card. This fault signifies that the drive detected an issue during its internal hardware checks. 

micromaster 440 f0022 indicate "Power stack fault" or "Hardware monitoring active". This means the drive's internal monitoring system has detected an abnormality that could potentially damage the unit.

Troubleshooting Steps:

Follow these steps to correct micromaster 440 f0022:

• Disconnect the motor cable and any other external control cables (except the main power supply). If the fault still appears when you power up the drive, it strongly suggests an internal drive issue.
• Check the motor cable for any signs of damage or short circuits.
• Use a multimeter to check for any low resistance paths between the motor terminals (U, V, W) and the ground (PE) connection.
• Make sure the input/output board is correctly and firmly seated in its connector.