Why is the Run Indicator flashing on my 3G3MX2-V2?

This is a new feature that has been added to the 3G3MX2-V2 drives. It provides additional feedback to the operator when the drive is not ready to run.

This indicator lights green when the following conditions are met:

• RUN command is input
• Inverter output is ON

This means the indicator will also remain lit when the Run command has been turned OFF and the inverter is still decelerating.

The indicator will blink green if the Run command is input, and the inverter is not ready for operation. This can occur for the following reasons.

• Frequency reference is 0Hz
• STO is active
• Trip has occurred
• Inverter is being reset
• Free-run command input is true
• Permission of RUN command is OFF
• Free V/f Frequency 7 is less than 30
• Parameter inconsistency warning occurred.

A common example we see is that frequency reference is 0Hz. Typically a device providing an analog signal to the inverter has stopped working, or there is additional logic preventing the device from outputting the analog signal. The analog input can be monitored via parameters:

• d130 - Analog Voltage Input FV Monitor
• d131 - Analog Current Input FI Monitor

Another common example is where the STO function is activated, typically from an E-Stop or nearby Safety controller.

For further information on why your inverter may not be running, please refer to the following sections of the MX2 Series V2 User Manual (I666-E1-02)

• 3-1-1 Part Names and Descriptions
• 10-2 Troubleshooting