GE Fuji Electric AF-300 Mini Startup Manual page 83
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Also See for Fuji Electric AF-300 Mini:
- Instructions manual (78 pages) ,
- Instructions manual (44 pages)
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Possible Causes
(4)
The system vibrates
due to a too-compliant
mechanical coupling
between the motor and
load, or the current
fluctuates due to motor
characteristics.
[5] If grating sound can be heard
Possible Causes
(1)
The carrier frequency
was set to too low a
value.
[6] The motor does not accelerate and decelerate at the set time.
Possible Causes
(1)
The drive ran the motor
by S-curve or curvilinear
pattern.
(2)
Current limiting
prevented the output
frequency from increas-
ing.
(3)
Automatic deceleration
was active.
(4)
Overload
(5)
Torque generated by the
motor was insufficient.
(6)
An external frequency
command device is
being used.
What to Check and Suggested Measures
CHECK
Cancel the automatic control system (automatic torque boost, slip compensation, energy saving
operation, overload prevention control, current limiting) and check that the motor vibration is suppressed
(F37, P09, H70, and F43).
SUGGESTED ACTIONS
– Cancel the functions causing the vibration.
– Adjust the data of the current oscillation suppression gain (H80).
CHECK
That the motor vibration is suppressed if you decrease the carrier frequency (F26) or set the sound tuning
(F27) to 0 (level 0).
SUGGESTED ACTIONS
– Decrease the carrier frequency (F26), or cancel the sound tune (F27).
What to Check and Suggested Measures
CHECK
Check the data for function codes F26 and F27.
SUGGESTED ACTIONS
– Increase the carrier frequency (F26).
– Make tone selection function (F27) effective and select the correct value.
What to Check and Suggested Measures
CHECK
Check the data for function code H07.
SUGGESTED ACTIONS
– Select the linear pattern.
CHECK
That current limiting is enabled using Menu #3 "drive monitoring," and the data for the current limiting level
(F44).
SUGGESTED ACTIONS
– Change the current limiting level (F44) to a correct value.
– Increase the acceleration and deceleration time (F07, F08, E10, and E11).
CHECK
Check the data for function code H69.
SUGGESTED ACTIONS
– Consider the use of a braking resistor.
– Increase the deceleration time (F08 and E11).
CHECK
Measure the output current.
SUGGESTED ACTIONS
– Reduce the load.
CHECK
Check that the motor starts running if the value of the torque boost (F09) is increased.
SUGGESTED ACTIONS
– Increase the value of the torque boost (F09).
CHECK
Check that there is no noise in the external signal wires.
SUGGESTED ACTIONS
– Isolate the control signal wires from the main circuit wires as far as possible.
– Use shielded wire or twisted wire for the control signal wires.
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