*1 To select a stand-alone option, refer to the Instruction Manual of each option. 28 2. INSTALLATION AND WIRING 2.1 Peripheral devices Symbol Name Overview Refer to page (a) Inverter (FR-A800) The life of the inverter is influenced by the surrounding air temperature. The surrounding air temperature should be as low as possible within the permissible range. This must be noted especially when the inverter is installed in an enclosure. Incorrect wiring may lead to damage of the inverter. The control signal lines must be kept fully away from the main circuit lines to protect them from noise. The built-in EMC filter can reduce the noise.
38, 47, 122 (b) Three-phase AC power supply Must be within the permissible power supply specifications of the inverter. 846 (c) Molded case circuit breaker (MCCB), earth leakage circuit breaker (ELB), or fuse Must be selected carefully since an inrush current flows in the inverter at power ON. 30 (d) Magnetic contactor (MC) Install this to ensure safety. Do not use this to start and stop the inverter. Doing so will shorten the life of the inverter. 130 (e) AC reactor (FR-HAL) Install this to suppress harmonics and to improve the power factor. An AC reactor (FR-HAL) (option) is required when installing the inverter near a large power supply system (1000 kVA or more).
Under such condition, the inverter may be damaged if you do not use a reactor. Select a reactor according to the applied motor capacity. 129 (f) DC reactor (FR-HEL) Install this to suppress harmonics and to improve the power factor. Select a reactor according to the applied motor capacity. For the FR-A820-03800(75K) or higher, FR-A840-02160(75K) or higher, or a motor with a capacity of 75 kW or higher, always connect the FR-HEL. When using the DC reactor with the FR-A820-03160(55K) or lower, FR- A840-01800(55K) or lower, remove the jumper across terminals P/+ and P1 before connecting the DC reactor to the inverter.
129 (g) Noise filter (FR-BLF) The FR-A820-03160(55K) or lower, FR-A840-01800(55K) or lower are equipped with the common mode choke. 120 (h) High power factor converter (FR-HC2) Suppresses the power supply harmonics significantly. Install this as required. 105 (i) Multifunction regeneration converter (FR- XC)*1 Provides a large braking capability. Install this as required. 106 (j) Power regeneration common converter (FR-CV)*1 108 (k) Power regeneration converter (MT-RC)*1 109 (l) Brake unit (FR-BU2, FR-BU, BU)*1 Allows the inverter to provide the optimal regenerative braking capability. Install this as required.
102 (m) Resistor unit (FR-BR, MT-BR5)*1 (n) USB connection Connect between the inverter and a personal computer with a USB (ver. 1.1) cable. Use a USB memory device to copy parameter settings or use the trace function. 86 (o) High-duty brake resistor (FR-ABR)*1 Improves the braking capability of the inverter built-in brake. Remove the jumper across terminals PR and PX to connect this (7.5K or lower). Always install a thermal relay when using a brake resistor for the inverters with 11K or higher capacity. 98 (p) Noise filter (ferrite core) (FR-BSF01, FR- BLF) Install this to reduce the electromagnetic noise generated from the inverter.
The noise filter is effective in the range from about 0.5 to 5 MHz. A wire should be wound four turns at maximum. 120 (q) Induction motor Connect a squirrel-cage induction motor. — (r) Example) No-fuse switch (DSN type) Connect this for an application where a PM motor is driven by the load even while the inverter power is OFF. Do not open or close the contactor while the inverter is running (outputting). — (s) PM motor (EM-A/MM-CF) Use the specified motor. An IPM motor cannot be driven by the commercial power supply. 854