FM-3 Programming Module Installation Manual

Encoder Hardware

If any pair of encoder lines are in the same state, an encoder line fault is generated. The most likely cause is a missing or bad encoder connection.

Motor Overtemp

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

RMS Shunt Power

This fault is generated when RMS shunt power dissipation is greater than the design rating of the internal shunt.

Overspeed

This fault occurs when the actual motor speed exceeds the Overspeed Velocity Limit parameter. This parameter can be accessed with PowerTools FM-3 software.

Max Following Error

This fault is generated when the following error exceeds the following error limit (default following error limit is .2 revs). With PowerTools FM-3 you can change the Following Error Limit value on disable in the Position view.

Travel Limit +/-

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

All "On"

This is a normal condition during power up of the drive. It will last for less than 1 second. If this display persists, call EMERSON for service advice.

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Emerson 400508-02 Encoder Hardware, Motor Overtemp, RMS Shunt Power, Overspeed, Max Following Error, Travel Limit +

400508-02 specifications

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