Error "E.UVT" (undervoltage protection)

The possible causes of the error UVT are as follows.- Low power supply voltage - Insufficient power supply capacity - Damage or failure Check the power suppl... More Details >>

Parameter display setting

Normally, Pr.80 and Pr.81 are the parameters that can be changed when the operation is stopped in the PU operation mode. The "Er4" is a mode designation erro... More Details >>

Setting frequency

Set Pr.52 (DU/PU main display data selection) to "100".Displaying the setting frequency while the inverter is stopped and the output frequency while it is op... More Details >>

Monitor indicator

Press the "SET" key once while the output frequency is monitored.The unit indicator LED changes from "Hz" to "A" and the monitor display changes to the current. More Details >>

Minimum frequency

If any other frequency is not set, when the start signal is input, the inverter starts acceleration from 0.5 Hz set with Pr.13 (Starting frequency) up to 3 H... More Details >>

Parameter setting

Change Pr.79 (Operation mode) to "3" (Combined operation mode) and short-circuit the external terminals STF and SD (or STR and SD for reverse rotation). More Details >>

Frequency setting

Use Pr.125 (Terminal 2 frequency setting gain frequency).　 More Details >>

Using external potentiometer and multi-speed operation together

You can use an external potentiometer and multi-speed operation together.When an external potentiometer signal input and multi-speed setting occur simultaneo... More Details >>

Terminal indicator lamp

The inverter outputs the peak voltage 300 to 400 VDC of the bus voltage not in a pure sine wave but a in a PWM waveform. Check if the lamp to be connected ca... More Details >>

Frequency setting

You can set the running frequency up to 400 Hz.It depends on the specifications of the motor used whether or not operation with a frequency of 120 Hz or high... More Details >>