• The warning "oL" of the stall prevention (overvoltage) is disabled while Pr.30 Regenerative function selection = "11 or 111".
• For the parameter details, refer to the FR-A800 Instruction Manual (Detailed).
2.10.2 Connection of the high power factor converter (FR-
When connecting the high power factor converter (FR-HC2) to suppress power harmonics, perform wiring securely as follows.
Incorrect connection will damage the high power factor converter and the inverter.
After making sure that the wiring is correct and secure, set the rated motor voltage in Pr.19 Base frequency voltage (under
V/F control) or Pr.83 Rated motor voltage (under other than V/F control) and "2 or 102" in Pr.30 Regenerative function
Remove jumpers installed between terminals R1/L11 and S1/L21 of the inverter, and connect the power supply for the control circuit to terminals
R1/L11 and S1/L21.
For wiring, the power phase must be consistent between terminals R4/L14, S4/L24, and T4/L34 and terminals R/L1, S/L2, and T/L3.
Do not install an MCCB across terminals P/+ and N/- (between terminals P and P/+ or between terminals N and N/-). Connecting the opposite
polarity of terminals N/- and P/+ will damage the inverter.
When using the FR-HC2 with the FR-A802 series, installation of a fuse is not required.
Change the FR-HC2 parameter setting to Pr.10 RDY signal logic selection = "0" (positive logic).
Use Pr.178 to Pr.189 (Input terminal function selection) to assign the terminals used for the X11 signal.
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 a terminal on the FR-HC2. (Refer to the Instruction Manual of the FR-HC2.)
Always connect between the FR-HC2 terminal RDY and the inverter terminal MRS (X10), and between the FR-HC2 terminal SE and the inverter
terminal SD. Not connecting these terminals may damage the FR-HC2.
Always connect terminals R/L1, S/L2, and T/L3 on the FR-HC2 to the power supply. Operating the inverter without connecting them will damage
Do not install an MCCB or MC across terminals (R/L1, S/L2, T/L3) on the reactor 1 and terminals (R4/L14, S4/L24, T4/L34) on the FR-HC2. Doing
so disrupts proper operation.
*10 Securely perform grounding (earthing) by using the grounding (earthing) terminal.
*11 The number of connected peripheral devices differs according to the capacity. For the details, refer to the Instruction Manual of the FR-HC2.
2. INSTALLATION AND WIRING
2.10 Connection of stand-alone option units
Filter capacitors 2
(NC contact) 2
Auxiliary contact for
Buffer relay for
limit MCs (NO contact) 3
Limit resistor (with thermostat)
(NC contact) 3
Mini relay for filter
capacitor alarm detector
Buffer relay for driving MCs