Diagnostics and Troubleshooting

Mtr Tmp

This fault is generated when the motor thermal switch is open due to motor over-temperature or incorrect wiring.

DvOvrTmp

This fault is generated when the drive thermal switch is open due to drive over-temperature. Check temperature in the enclosure and drive sizing.

Inv Parm

Inv NVM

At power-up the drive tests the integrity of the non-volatile memory. This fault is generated if the contents of the non-volatile memory are invalid.

Pwr On

FlwErr

This fault is generated when the following error exceeds the following error limit (default following error limit is .2 revs). With PowerTools Pro you can change the Following Error Limit value on disable in the Position view.

Trav(+)

This fault is caused when the + Travel Limit input function is active.

Trav(-)

This fault is caused when the - Travel Limit input function is active.

Prog Flt

This fault indicates a FM-3 user program fault. For example the program is attempting to divide by zero, or overflows and math errors caused by numbers that are too large, or non- existing parameters.

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Emerson FM-3 manual Mtr Tmp, DvOvrTmp, Inv Parm Inv NVM, Pwr On FlwErr, Trav+, Prog Flt