Sanken Samco SVC06, Инструкция по эксплуатации, Страница: 108 / 136

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8-4 Alarm Status
7-segment
monitor display
Alarm description Check points Actions
Radiator temperature
abnormality Fan stopped?
Ambient temperature too high? Check fan operation
Increase the ventilation
Undervoltage during
acceleration Does power supply satisfy
conditions?
Has the voltage dropped? Examine/improve power supply
conditions.
Undervoltage during
constant speed
Undervoltage during
deceleration
Main switch element
temperature
abnormality Fan stopped?
Ambient temperature too high? Check fan operation
Increase the ventilation
Overcurrent during
acceleration Abrupt acceleration / deceleration
rate?
Output short-circuited or ground
fault?
Main switch elements abnormality? Prolong acceleration and deceleration time.
Correct short-circuit or ground fault.
Contact your supplier when alarms are
issued repeatedly.
Overcurrent during
constant speed
Overcurrent during
deceleration
Momentary overload
during acceleration Excessive acceleration rate?
Setting for current limiting function
(F1701) too high? Prolong acceleration time
Decrease the setting value
Momentary overload
during constant speed Abrupt change (increase) in load?
Setting for current limiting function
(F1701) too high? Eliminate the abrupt change (increase)
Decrease the setting value
Momentary overload
during deceleration Excessive deceleration rate with a
GD
2
?
Setting for current limiting function
(F1701) too high?
Prolong acceleration time
Decrease the setting value
Overload during
acceleration Motor operated with an excessive
load?
Electrothermal level set properly?
Load GD
2
too large?
Reduce the load
Increase the capacity of the inverter and
motor
Overload during
constant speed
Overload during
deceleration
Overvoltage during
acceleration
Did start-up occur during
free run
?
Flying start.
Overvoltage during
constant speed Is motor being turned by other
force? Redesign the system so that the motor is
not driven by external force.
Use a brake resistor with a larger capacity.
Overvoltage during
deceleration Excessive deceleration? Prolong the deceleration time (so that GD
2
of the load is met)
Brake resistor
overvoltage protection Braking frequency too high? Reduce the braking frequency
Increase the brake resistor capacity
Disconnection of
feedback signal cable
(during PID control
action) Feedback signal cable
disconnected?
Feedback signal correct?
Gain frequency correct?
（
F1402, F1404, F1406
）
Check feedback signal cable and connect
securely.
Set gain frequency properly
（
F1402, F1404, F1406
）