JPS IRIS-IMSV, Руководство пользователя

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A0 – OP
Î
Over Potential
When showing
OP
presents the dc bus voltage exceeds the protect level.
z
If it is caused by the regeneration when decreasing speed, apply a proper
discharge resistor to discharge circuits.
z
Re-calculate the value of discharge resistor to fit in the volume of regeneration
energy.
z
Check if the input power voltage exceeds the input rating of driver.
z
Check if the setting of Pr.130 (Input Power Voltage) is correct or not.
z
Check if the displayed message of Pr.132 (DC Bus Voltage) is correct or not.
z
According to the result of last 3 check items to decide if there is necessary to
modify the setting of Pr.131 (DC Bus Measurement Adjust).
A0 – UP
Î
Under Potential
When showing
UP
presents the dc bus voltage is lower the protect level.
z
Check the input power system.
z
Check the input power voltage fits in the rating of driver.
z
Check if the setting of Pr.130 (Input AC Power Voltage) is correct or not.
z
Check if the displayed message of Pr.132 (DC Bus Voltage) is correct or not.
A0 – OC
Î
Over Current
When showing
OC
presents the output current exceeds the rating of driver.
z
Check if the type of motor fits in the driver’s specification.
z
Check if the rating of motor’s fits in the rating of driver.
z
Check if the connection of U, V, and W is properly or not.
z
Check if the power lines to motor is broken or short with other lines or any defect.
z
Check if the motor’s wires are short or not.
z
Check the settings of parameter group BLAC Motor Group are correct or not.
z
If the OC happened in the accelerating period, try to increase the setting of Pr.053
(Acc Time).
z
If the OC happened in the decelerating period, try to increase the setting of Pr.054
(Dec Time).
z
Check if the setting of Pr.130 (Input AC Power Voltage) is correct or not.
z
Check if the displayed message of Pr.132 (DC Bus Voltage) is correct or not.
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