*4 Connect between the inverter terminal P/+ and the converter terminal P/+ and between the inverter terminal N/- and the converter terminal N/- for polarity consistency. Connecting opposite polarity of terminals P/+ and N/- will damage the converter and the inverter. *5 Confirm the correct phase sequence of three-phase current to connect between the reactor and the converter, and between the power supply and terminals R/L1, S/L2, and T/L3. Incorrect connection will damage the converter. *6 Be sure to connect the power supply and terminals R/L1, S/L2, and T/L3 of the converter. Operating the inverter without connecting them will damage the converter.
*7 Use Pr.178 to Pr.189 (Input terminal function selection) to assign the terminals used for the X10 signal. (Refer to page 539 .) *8 To use separate power supply for the control circuit, remove each jumper at terminal R1/L11 and terminal S1/L21. *9 Install UL listed fuses on the input side of the reactor to meet the UL/cUL standards (refer to the FR-XC Instruction Manual for information about the fuse). *10 Do not install an MCCB or MC between the reactor and the converter. Doing so disrupts proper operation. *11 Do not connect anything to terminal P4.
1 2 3 CAUTION 4 In the common bus regeneration mode, always connect between the converter terminal RYB and the inverter terminal to which the X10 (MRS) signal is assigned and between the converter terminal SE and the inverter terminal SD. If the 5 terminals are not connected, the converter may be damaged. 6 The control logic (sink logic/source logic) of the converter and the inverter must be matched. The converter does not operate properly if the control logic is not consistent with each other. (Refer to page 73 for the switching of the control logic.
Refer to the FR-XC Instruction Manual for the switching of the control logic of the converter.) 7 Keep the wiring length between terminals as short as possible. When the power is distorted or falls off sharply, the reactors may generate abnormal acoustic noise. This acoustic noise is caused by the power supply fault and not by the damage of the converter. Configure a system so that the magnetic contactor at the converter input side shuts off the power supply at a failure of the converter or the connected inverter. (The converter does not shut off the power supply by itself.) Failure to do so may overheat 8 and burn the resistors in the converter and the connected inverter.
Do not connect a DC reactor to the inverter when using the converter in the common bus regeneration mode. For details on model selection and connection, refer to the FR-XC Instruction Manual. 9 For details on connection in common bus regeneration mode with harmonic suppression enabled or in power regeneration mode 2, refer to the FR-XC Instruction Manual. 10 107 2. INSTALLATION AND WIRING 2.10 Connection of stand-alone option units NOTE