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Diagnostics and troubleshooting, Diagnostic display, Fm-3 programming module reference manual – Emerson FM-3 User Manual

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Diagnostics and Troubleshooting

Diagnostic Display

The diagnostic segment display on the front of the drive shows drive status, FM-3 module
status, and fault codes. When a fault condition occurs, the drive will display the fault code,
overriding the status code. The alphanumeric display on the FM-3 module provides additional
fault information.

The decimal point is “On” when the drive is enabled, and the stop input is not active. This
indicates that the drive is ready to run and any motion command will cause motion. Motion
commands will not cause motion unless you are Ready (R) and the decimal point is “On”.

Display Indication

Status

Description

FM-3 Keypad Display

Ready

The FM-3 and drive system is functioning
normally and is ready to execute a motion
command.

Drive Type Address
Motor Type
Menu Groups

Brake Engaged (Output "Off")

Motor brake is mechanically engaged. This
character will only appear if the Brake output
function is assigned to an output line. See
Brake Operation section for detailed
description of Brake Output function.

Drive Type Address
Motor Type
Menu Groups

Disabled

Power Stage is disabled.

Drive Type Address
Motor Type
Menu Groups

RMS Foldback

Motor torque is limited to 80 percent.

Drive Type Address
Motor Type
Menu Groups

Stall Foldback

Drive output current is limited to 80 percent of
drive stall current.

Drive Type Address
Motor Type
Menu Groups

Ready to Run

Drive enabled. No stop input.

Drive Type Address
Motor Type
Menu Groups

Homing

Home is executing.

Drive Type Address
Motor Type
Menu Groups

FM-3 Programming Module Reference Manual