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Omron EMC Recommendations Section D-2
D-2 Omron EMC Recommendations
!WARNING This equipment should be installed, adjusted, and serviced by qualified
personal familiar with construction and operation of the equipment and the
hazards involved. Failure to observe this precaution could result in bodily
injury.
Use the following checklist to ensure the inverter is within proper operating
ranges and conditions.
1. The power supply to MX2 inverters must meet these specifications:
• Voltage fluctuation ±10% or less
• Voltage imbalance ±3% or less
• Frequency variation ±4% or less
• Voltage distortion THD =10% or less
2. Installation measure:
• Use a filter designed for MX2 inverter. Refer to the instruction of the appli-
cable external EMC filter.
3. Wiring:
• Shielded wire (screened cable) is required for motor wiring, and the length
must be 20 meter or less.
• If the motor cable length exceeds the value shown above, use output
choke to avoid unexpected problem due to the leakage current from the
motor cable.
• The carrier frequency setting must be 2 kHz to satisfy EMC requirements.
• Separate the power input and motor wiring from the signal/process circuit
wiring.
4. Environmental conditions-when using a filter, follow these guidelines:
• Ambient temperature: -10 to 40°C
• Humidity: 20 to 90% RH (non-condensing)
• Vibration: 5.9 m/sec2 (0.6 G) 10 ~ 55Hz
• Location: 1000 meters or less altitude, indoors (no corrosive gas or dust)
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