Measure the megger values on the inverter's output side.If there is no problem:If the motor capacity is extremely smaller than the inverter capacity (as a gu... More Details >>
The regenerative overvoltage shutoff protective function is provided since the terminal voltage of the internal capacitor of the inverter can rise abnormally... More Details >>
The alarm E7 occurs when the forced stop signal of the servo system controller is enabled. Ensure the safety and cancel the forced stop signal of the control... More Details >>
Deceleration overvoltage (E.OV3)
While the FREQROL-Z200 series and A500 series have a brake resistor built in the capacity up to 7.5K, the FREQROL-E500 series does not have a built-in brake ... More Details >>
The inverter overcurrent shut-off fault indication E.OC1, E.OC2, or E.OC3 is not only displayed when the inverter output current reaches approximately 200% o... More Details >>
Operation mode, PU operation mode swi...
Change Pr.340 (Communication startup mode selection) from "1" to "0".Power OFF and then ON the inverter.Operate the inverter according to the value of Pr.79 ... More Details >>
If Pr.79 = 3, PU and EXT turn ON. Switching between PU and EXT is not available. Turn the setting dial to set the frequency and press the SET key to accept it. More Details >>
Cause of overcurrent (OC2) at constan...
First of all, capacity reduction of the main circuit electrolytic capacitor is probable. Usually, the electrolytic capacitor is replaced every 5 years on ave... More Details >>
1. Stall prevention operation works when the inverter's output current exceeds the value set with Pr.22.In this case, it is considered that the current did n... More Details >>
Differences between flange and face m...
SHY right angle shaft type has lineup of flange and face mounting. For face mount type, screw hole processing is done on the flange surface of the gear case,... More Details >>
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