2.10.9 Connection of the DC reactor (FR-HEL) Keep the surrounding air temperature within the permissible range (-10 to +50°C). Keep enough clearance around the reactor because it heats up. (Take 10 cm or more clearance on top and bottom and 5 cm or more on left and right regardless of the installation direction.) 10 cm or more 5 cm or more 5 cm or more 5 cm or more 5 cm or more When using the DC reactor (FR-HEL), connect it to terminals P/+ and P1. effective. (The jumper is not installed for the FR-A820-03800(75K) or higher and the FR-A840-02160(75K) or higher.) In this case, the jumper connected across terminals P/+ and P1 must be removed.
Otherwise, the reactor will not be FR-HEL Remove the jumper Select a DC reactor according to the applied motor capacity (refer to page 846 ). For the FR-A820-03800(75K) or higher, the FR-A840-02160(75K) or higher, and when a 75 kW or higher motor is used, always connect a DC reactor. Since the DC reactor (FR-HEL) is electrically connected to the enclosure through mounting screws, the DC reactor is earthed (grounded) by being securely mounted to the enclosure. Earthing (grounding) using the earth (ground) terminal is also available.
For compliance with UL, CE (EMC Directive and Low Voltage Directive), EAC, and UKCA (UK certification scheme) standards, earthing (grounding) must be performed using the earth (ground) terminal. The wiring distance must be within 5 m. As a reference, the cable gauge for the connection must be equal to or larger than that of the power cables (R/L1, S/L2, T/L3) and the earthing (grounding) cable. (Refer to page 58 .) 110 2. INSTALLATION AND WIRING 2.10 Connection of stand-alone option units P1 P/+ NOTE