
24
“F” Following Error Fault
This fault is indicated by the display showing a “F”. This indicates the following error
detected exceeds the programmed limit value.
Potential causes for the “F” Following Error Fault
• Friction
• Faulty wiring
• Programmed acceleration/deceleration ramps are too fast
“F” “Following Error Fault”
Disconnect
Motor from
Load
Friction
Check Movement
of All Parts
Moved/Controlled by
This Motor
Check
Lubrication
of All
Mechanical Parts
Gear Reducer
Used?
Check condition
and level of Oil
Add/Change
Reducer Oil
with Recommended
Oil
Reconnect
Motor to
Load
Reset
with
Reset P/B
Return to
Normal Operation
Programmed
Accel/Decel
Ramps
Too Agressive
Return to
Normal Operation
Following
Error Limit
Setting too
Agressive
FM-2/3/4
Faulty
Wiring
Yes
No
No
No
Alter
Following Error
Limit
Reset
with
Reset P/B
Return to
Normal Operation
Yes
Yes
Yes
Check Motor to Drive
Wiring for Splices
Reset
with
Reset P/B
"F"
Following Error
Fault
Reset
with P/B
Inspect Motor
to Drive Wiring
Poor
Splices
Replace
Cable
End
No
End
Examine
All Motions
that may be
Causing Fault
Alter
Accel/Decel
Ramps for
Suspect Motions
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