
189
Diagnostics and Troubleshooting
Diagnostic Display
The diagnostic segment display on the front of the base drive and Epsilon EP-P drive shows drive status, FM-3/4 module
status, and fault codes. When a fault condition occurs, the base drive and drive will display the fault code, overriding the status
code. The alphanumeric display on the FM-3/4 module provides additional fault information.
The decimal point is “On” when the drives are enabled, and the stop input is not active. This indicates that the drives are 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”.
Status Codes
Display Indication Status Description
FM-3/4 Keypad Display
(When Applicable)
Ready
The 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
(EN drive only)
Drive output current is limited to 80 percent of
EN 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 cycle is executing. Other motion
commands do not funtion.
Drive Type Address
Motor Type
Menu Groups
Indexing
Index is executing. Other motion commands
do not function.
Drive Type Address
Motor Type
Menu Groups
Decelerating from Stop or
Travel Limit Decel
Deceleration ramp after the Stop or Travel
Limit function is activated. The ramp is
displayed while decelerating, and then display
will go back to normal after completing the
decel ramp.
Drive Type Address
Motor Type
Menu Groups
Jogging
Jog function in progress. Other motion
commands do not function.
Drive Type Address
Motor Type
Menu Groups
Epsilon EP-P Drive and FM-3/4 Module Reference Manual
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