Terminal connection diagrams
35
2
Connection between the converter unit and the inverter
Perform wiring so that the commands sent from the converter unit are transmitted to the inverter without fail. Incorrect
connection may damage the converter unit and the inverter.
For the wiring length, refer to the table below.
For the cable gauge of the cable across the main circuit terminals P/+ and N/- (P and P, N and N), refer to
∗1
Do not install an MCCB across 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.
∗2
For the terminal used for the X10 signal input, set "10" in any of
Pr.178 to Pr.189 (input terminal function selection)
to assign the function.
(The X10 signal is assigned to terminal MRS in the initial setting.)
For the X10 signal, NC contact input specification is selected in the initial setting. Set
Pr.599
= "0" to change the input specification to NO
contact.
∗3
For the terminal used for the X11 signal input, set "11" in any of
Pr.178 to Pr.189 (input terminal function selection)
to assign the function. For
RS-485 or any other form of 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.
∗4
Always connect terminal RDA of the converter unit and terminal MRS (X10) of the inverter, and terminal SE of the converter unit and the terminal
SD (sink logic) of the inverter. Not connecting these terminals may damage the converter unit.
Total wiring
length
Across terminals P and P and
terminals N and N
50 m or lower
Other control signal cables
30 m or lower
Inverter
Converter unit
(FR-CC2)
M
R1/L11
S1/L21
R/L1
S/L2
T/L3
Power
supply
MCCB
MC
U
V
W
R1/L11
S1/L21
P/+
P/+
N/-
N/-
X11
RES
SD
IPF
RSO
SE
MRS(X10)
∗
2
RDA
∗
4
∗
4
∗
1
∗
3
RDB
Summary of Contents for FR-A842-07700
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