SMC Networks LECSB2-T Series - Page 355

8. TROUBLESHOOTING
8 - 68
Alarm No.: EC
Name: Overload warning 2
Alarm content
Operations over rated output were repeated while the servo motor shaft was not rotated.
Detail
No.
Detail name
Cause
Check method
Check result
Action
EC.1
Overload
warning 22
(1)
The load is too large or
the capacity is not
enough.
Check the effective
load ratio.
The effective load
ratio is high.
Reduce the load.
Replace the servo motor
with the one of larger
capacity.
Alarm No.: ED
Name: Output watt excess warning
Alarm content
・The status, in which the output wattage (speed × torque) of the servo motor exceeded the rated
output, continued steadily.
Detail
No.
Detail name
Cause
Check method
Check result
Action
ED.1
Output watt
excess warning
(1)
The status, in which the
output wattage (speed
× torque or thrust) of
the servo motor
exceeded 120% of the
rated output
(continuous thrust),
continued steadily.
Check the servo motor
speed and torque, or
check the motor speed
and thrust.
The output wattage is
120% of rating.
Reduce the servo motor
speed. Reduce the load.
Alarm No.: F0
Name: Tough drive warning
Alarm content
・
Tough drive function was activated.
Detail
No.
Detail name
Cause
Check method
Check result
Action
F0.1
Instantaneous
power failure
tough drive
warning
(1)
The voltage of the
control circuit power
supply has dropped.
Check it with the check method for [AL. 10.1].
F0.3
Vibration tough
[GF] drive
warning
(1)
The setting value of the
machine resonance
suppression filter was
changed due to a
machine resonance.
Check if it was
changed frequently.
It was changed
frequently.
Set the machine
resonance suppression
filter. Check the machine
status if screws are loose
or the like.
Alarm No.: F2
Name: Drive recorder - Miswriting warning
Alarm content
A waveform measured by the drive recorder function was not recorded.
Detail
No.
Detail name
Cause
Check method
Check result
Action
F2.1
Drive recorder -
Area writing
time-out
warning
(1)
The Flash-ROM is
malfunctioning.
Disconnect the cables
except for the control
circuit power supply,
and then check the
repeatability.
It is repeatable
Replace the driver.
F2.2
Drive recorder -
Data miswriting
warning
(1)
Data were not written to
the drive recorder area.
Check if clearing alarm
history disables this
alarm with setup
software (MR
Configurator2
TM
)
It is not canceled.
Replace the driver.
Alarm No.: F3
Name: Oscillation detection warning
Alarm content
[AL. 54 Oscillation detection] can occur.
Detail
No.
Detail name
Cause
Check method
Action
Target
F3.1
Oscillation
detection
warning
Check it with the check method for [AL. 54.1].