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*4
The X10 signal (NC contact input specification) is assigned to terminal MRS in the initial setting. Set Pr.599 = "0" to change the input specification
of the X10 signal to NO contact.
*5
Terminal input specifications can be changed by analog input specification switchover (Pr.73, Pr.267). To input voltage (0 to 5 V/0 to 10 V), set
the voltage/current input switch OFF. To input current (4 to 20 mA), set the voltage/current input switch ON. Terminals 10 and 2 are also used as
a PTC input terminal. (Pr.561)
*6
It is recommended to use 2 W 1 kΩ when the frequency setting signal is changed frequently.
*7
The function of these terminals can be changed using the Output terminal function selection (Pr.195 or Pr.196).
*8
The function of these terminals can be changed using the Output terminal function selection (Pr.190 to Pr.194).
*9
No function is assigned in the initial setting. Use Pr.192 to assign a function to the terminal.
*10 The option connector 2 cannot be used because the Ethernet board is installed in the initial status. The Ethernet board must be removed to install
a plug-in option to the option connector 2. (However, Ethernet communication is disabled in that case.)
*11 The Ethernet board must be removed to install the PROFIsafe communication option (A8SPRS).
*12 When the FR-A8NCG-S is installed, other options can be connected to the connectors 2 and 3. When the A8SPRS is installed, other options can
be connected to the connector 3. For the options available when the safety communication option is installed, refer to
*13 Do not remove the jumpers from terminals S1, S2, and SIC. Do not use terminals S1, S2, SIC, and So (SO).
NOTE
• To prevent a malfunction due to noise, keep the signal cables 10 cm or more away from the power cables. Also, keep the
cables of the main circuit for input and output separated.
• After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause a fault, failure or malfunction. Always keep the inverter clean.
When drilling mounting holes in an enclosure etc., take caution not to allow chips and other foreign matter to enter the inverter.
• Set the switches of the voltage/current input selection switch assembly correctly. Incorrect setting may cause a fault, failure or
malfunction.
Connection between the converter unit and the inverter
Wire correctly to ensure the command transmission from the converter unit to the inverter. Otherwise, the converter unit and
the inverter may be damaged.
For the wiring length, refer to the following tables.
Location
Across terminals P and P and
terminals N and N
Other control signal cables
For the wire gauge of the wire across the main circuit terminals P/+ and N/- (P and P, N and N), refer to
MCCB
MC
Power
supply
*1
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.
*2
For the X10 signal input, set "10" in any parameter from 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.)
The state of contact at terminal MRS is initially set to normally closed (NC). To change the contact state to normally open (NO), set Pr.599 = "0".
*3
For the X11 signal input, set "11" in any parameter from 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 terminal SD
(sink logic) of the inverter. Otherwise, the converter unit may be damaged.
Total wiring length
50 m or shorter
30 m or shorter
Converter unit
Inverter
R/L1
P/+
P/+
N/-
N/-
S/L2
R1/L11
S1/L21
T/L3
R1/L11
S1/L21
MRS(X10)
RDA
RDB
X11
IPF
RES
RSO
SD
SE
U
V
M
W
page
130.
page
44.
2. INSTALLATION AND WIRING
2.4 Terminal connection diagrams
1
2
3
4
5
6
7
8
9
10
41
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