If There Is Noise When The Inverter Is Started Or From An Am Radio - Omron SYSDRIVE 3G3RV Series User Manual

(i.e., 1,200 V for 400 V class). Be sure to use a motor with a withstand voltage between the motor phases that
is greater than the maximum surge voltage. In particular, when using a 400 V class Inverter, use a special
motor for Inverters.
nAutotuning has not been performed for vector control
Vector control will not perform if autotuning has not been performed. Perform autotuning, or set the motor
constants through calculations. Alternatively, change the Control Method Selection (A1-02) to V/f control (0
or 1).
K K K K

If There Is Noise When the Inverter Is Started or From an AM Radio

If noise is generated by Inverter switching, implement the following countermeasures:
Change the Inverter's Carrier Frequency Selection (C6-02) to lower the carrier frequency. This will help to
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some extent by reducing the amount of internal switching.
Install an Input Noise Filter at the Inverter's power supply input area.
•
Install an Output Noise Filter at the Inverter's power supply output area.
•
• Use metal tubing. Electric waves can be shielded by metal, so encase the Inverter with metal (steel).
Ground the Inverter and motor.
•
• Separate main circuit wiring from control wiring.
Troubleshooting
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