GE Fuji Electric MICRO-SAVER AF-300, Руководство для стартапов

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Possible Causes What to Check and Suggested Measures
(4) Even though a response
error detection time
(y08) has not been set,
communications did not
occur cyclically.
CHECK
Check the high-level controllers.
SUGGESTED ACTIONS
– Change the settings of high-level controller software, or make the no response error detection time
invalid (y08 = 0).
(5) High intensity noise was
applied to the drive.
CHECK
Check if appropriate noise control measures have been implemented (e.g. correct grounding and routing
of control and main circuit wires).
SUGGESTED ACTIONS
– Improve noise control.
– Improve measures against noise from high-level controllers.
– Replace the relay converter with a recommended insulated converter.
(6) Incompatible com-
munications protocols
between the drive and
high-level controllers.
CHECK
Compare the settings of the y codes (y01 to y10) with those of the high-level controllers.
SUGGESTED ACTIONS
– Correct the any settings which do not match.
(7) The RS485 communica-
tions card malfunctioned.
SUGGESTED ACTIONS
– Replace the card.
[17] ErF Data save error during undervoltage
Problem The drive was unable to save data such as the frequency commands, timer, and
PID process commands set through the keypad when the power was switched off.
Possible Causes What to Check and Suggested Measures
(1) Control circuit voltage
dropped suddenly when
power was turned off
while data was being
saved, because the
intermediate dc circuit
capacitor was rapidly
discharged.
CHECK
Check how long it takes for the intermediate dc circuit voltage to drop to the preset voltage when the
power is turned off.
SUGGESTED ACTIONS
– Remove whatever is causing the rapid discharge. After pressing the key and releasing the alarm,
reset the data (such as the frequency commands, timer, and PID process commands) set with the keypad
to the correct settings, and then restart the motor.
(2) High intensity noise was
applied to the drive while
data was being written
when the power was
turned off.
CHECK
Check if appropriate noise control measures have been implemented (e.g. correct grounding and routing
of control and main circuit wires).
SUGGESTED ACTIONS
– Improve noise control. Press the key to release the alarm, then reset the data (e.g. frequency
commands, timer, and PID process commands) set through the keypad to the correct settings. Restart the
motor.
(3) The CPU did not operate
normally.
CHECK
Check if ErF occurs each time the power is switched off.
SUGGESTED ACTIONS
Replace the malfunctioning printed circuit board (PCB).
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