FR-A701 INSTRUCTION MANUAL (Applied) - Automation Systems ...

1OUTLINEInverter and peripheral devices1.2 Inverter and peripheral devicesThree-phase AC power supplyUse within the permissible power supplyspecifications of the inverter.(Refer to page 406)Moulded case circuit breaker (MCCB) orearth leakage circuit breaker (ELB), fuseThe breaker must be selected carefullysince an in-rush current flows in the inverterat power on.Inverter (FR-A701)The life of the inverter is influenced by surrounding air temperature. The surrounding airtemperature should be as low as possible within the permissible range. This must be notedespecially when the inverter is installed in an enclosure. (Refer to page 7)Wrong wiring might lead to damage of the inverter. The control signal lines must be keptfully away from the main circuit to protect them from noise.(Refer to page 14)(Refer to page 4)Magnetic contactor (MC)Install the magnetic contactor to ensuresafety. Do not use this magnetic contactorto start and stop the inverter. Doing so willcause the inverter life to be shorten.(Refer to page 44)Noise filter(FR-BLF)Install a noise filter to reduce the electromagneticnoise generated from the inverter.Effective in the range from about 1MHz to 10MHz.When more wires are passed through, a moreeffective result can be obtained. The total number ofwires passed through should be 4T or more.Capacitor type filter(FR-BIF)Reduces the radio noise.R/L1 S/L2 T/L3Earth(Ground)U V WNoise filter (FR-BLF)Install a noise filter to reducethe electromagnetic noisegenerated from the inverter.Effective in the range fromabout 1MHz to 10MHz. A wireshould be wound four turns ata maximum.Devices connected to the outputDo not install a power factor correction capacitor, surge suppressor or radio noise filter on the outputside of the inverter. When installing a moulded case circuit breaker on the output side of the inverter,contact each manufacturer for selection of the moulded case circuit breaker.MotorEarth (Ground)To prevent an electric shock, always earth (ground) the motor and inverter.Earth (Ground)CAUTION· Do not install a power factor correction capacitor, surge suppressor or radio noise filter on the inverter output side. This will cause theinverter to trip or the capacitor, and surge suppressor to be damaged. If any of the above devices are connected, immediately remove them.· This inverter has a built-in AC reactor (FR-HAL) and a circuit type specified in Harmonic suppression guideline in Japan is threephasebridge (capacitor smoothed) and with reactor (AC side). (Refer to page 42) Do not use an AC reactor (FR-HAL) of a standaloneoption except following purpose. (Note that overload protection of the converter may operate when a thyristor load isconnected in the power supply system. To prevent this, always install an optional stand-alone AC reactor (FR-HAL).) A DCreactor (FR-HEL) can not be connected to the inverter.· Electromagnetic wave interferenceThe input/output (main circuit) of the inverter includes high frequency components, which may interfere with the communicationdevices (such as AM radios) used near the inverter. In this case, connecting a capacitor type filter will reduce electromagneticwave interference.· Refer to the instruction manual of each option and peripheral devices for details of peripheral devices.3