The brake resistor is not built in the inverter. Purchase the optional resistor and connect it to the inverter.Inverter

Set the parameters below. For other parameters, keep the initial settings.1. Set Pr.122 (Communication check time interv

When an instantaneous power failure occurs and the inverter's bus voltage drops below the standard value, it outputs an

The rotation ripple data for 1.5 kW is shown below.Drive unit: MD-CX520-1.5KMotor: MM-CF152Load: None (motor alone), car

It is OK if the resistance value of the speed varying potentiometer's resistance is 2 kΩ.Use the speed varying potentiom

The NC contact does not open when the power supply is cut off whether the inverter is operating or ceased.When the input

Take the following countermeasure:1. If the thermal trips in low-speed operation, trips can be avoided, depending on the

The motor-generated torque elements have the following relationship:Torque T = K I V/FK: ConstantI: CurrentV: VoltageF:

Set Pr.9 to the rated current at 50 Hz or a value 1.1 times as the rated current at 60 Hz.You can specify the motor type

Your suggestion is fine, but note that deceleration stop is naturally not available in case of an inverter error.In addi

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FAQ within [ Inverters-FREQROL ]

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Regenerative brake resistor

The brake resistor is not built in the inverter. Purchase the optional resistor and connect it to the inverter.Inverter only (without resistor)Continuous reg... More Details >>
- No：21989
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-E500
Inverter setup

Set the parameters below. For other parameters, keep the initial settings.1.　Set Pr.122 (Communication check time interval) to other than "0". ("9999" is OK.... More Details >>
- No：21986
- Release Date：2018/08/22 16:30
- Category： Engineering Software
Relationship between undervoltage warning and instantaneous power failure

When an instantaneous power failure occurs and the inverter's bus voltage drops below the standard value, it outputs an undervoltage warning and stops its ou... More Details >>
- No：21974
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-U100
Rotation ripple at low speed

The rotation ripple data for 1.5 kW is shown below.Drive unit: MD-CX520-1.5KMotor: MM-CF152Load: None (motor alone), carrier frequency: 2 kHz, wiring length:... More Details >>
- No：21968
- Release Date：2018/08/22 16:30
- Category： Magnet motor drive
Using existing potentiometer by replacing inverter

It is OK if the resistance value of the speed varying potentiometer's resistance is 2 kΩ.Use the speed varying potentiometers used with the existing inverter... More Details >>
- No：21962
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL
Fault contact state when input side power supply is cut off

The NC contact does not open when the power supply is cut off whether the inverter is operating or ceased.When the input side power supply is cut off, the DC... More Details >>
- No：21958
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-S500
External thermal overheat

Take the following countermeasure:1. If the thermal trips in low-speed operation, trips can be avoided, depending on the external thermal relay operation cha... More Details >>
- No：21954
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-E500
Current value display

The motor-generated torque elements have the following relationship:Torque T = K I V/FK: ConstantI: CurrentV: VoltageF: FrequencyThe inverter regularly perfo... More Details >>
- No：21952
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL
Electronic thermal O/L relay setting

Set Pr.9 to the rated current at 50 Hz or a value 1.1 times as the rated current at 60 Hz.You can specify the motor type with Pr.71 (Applied motor). For a co... More Details >>
- No：21941
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL
Second deceleration time setting

Your suggestion is fine, but note that deceleration stop is naturally not available in case of an inverter error.In addition, considering regenerative power,... More Details >>
- No：21939
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL

221-230 of Total 1306

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