Installation and wiring
Connection of the high power factor converter (FR-HC2)
When connecting the high power factor converter (FR-HC2) to suppress power harmonics, perform
wiring securely as shown below. Incorrect connection will damage the high power factor converter
and the inverter.
After making sure that the wiring is correct, set "rated motor voltage" in Pr. 19 "Base frequency volt-
age" (under V/F control) or Pr. 83 "Rated motor voltage" (under other than V/F control) and "2" in Pr.
30 "Regenerative function selection". (Refer to page 5-713.)
Remove jumpers between terminal R/L1 and R1/L11 as well as between S/L2 and S1/L21, and
connect the power supply for the control circuit to terminals R1/L11 and S1/L21. Do not connect
anything to power input terminals (R/L1, S/L2, T/L3). Incorrect connection will damage the inverter.
(E.OPT (option fault) will occur. (Refer to page 6-28.)
Do not install an MCCB across the terminals P/+ and N/- (across terminals P and P/+ or across N
and N/-). Connecting the opposite polarity of terminals N/- and P/+ will damage the inverter.
Use Pr. 178 to Pr. 189 (input terminal function selection) to assign the terminals used for the X10
(X11) signal. (Refer to page 5-439.)
For RS-485 or any other communication where the start command is only transmitted once, use
the X11 signal to save the operation mode at the time of an instantaneous power failure.
Assign the IPF signal to an FR-HC2 terminal. (Refer to the Instruction Manual of FR-HC2.)
Always connect the FR-HC2 terminal RDY to a terminal where the X10 signal or MRS signal is
assigned in the inverter. Always connect the FR-HC2 terminal SE to the inverter terminal SD. Not
connecting these terminals may damage the FR-HC2.
Always connect the R/L1, S/L2, and T/L3 terminals of FR-HC2 to the power supply. Operating the
inverter without connecting them will damage the FR-HC2.
Do not install an MCCB or MC between the reactor 1 terminals (R/L1, S/L2, T/L3) and the FR-HC2
terminals (R4/L14, S4/L24, T4/L34). It will not operate properly.
Securely perform grounding (earthing) by using the grounding (earthing) terminal.
Installation of a fuse is recommended. (Refer to the Instruction Manual of FR-HC2.)
Outside box is not available for FR-HC2-H280K or higher. Connect filter capacitors, inrush current
limit resistors, and magnetic contactors. (Refer to the Instruction Manual of FR-HC2.)
Connection of the high power factor converter FR-HC2
Connection of stand-alone option units
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