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Wiring
2.1 Wiring
2.1.1 Terminal connection diagram
NOTE
To prevent a malfunction caused by noise, separate the signal cables more than 10cm (3.94inches) from the power
cables. Also separate the main circuit wire of the input side and the output side.
After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting holes
in an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.
The output of the single-phase power input specification is three-phase 200V.
Earth
(Ground)
Motor
IM
Earth (Ground)
Three-phase
AC power
supply
MCCB MC
R/L1
P1 P/+
PR
N/-
S/L2
T/L3
U
V
W
Earth
(Ground)
*7 Brake resistor (FR-ABR, MRS type, MYS
type)
Install a thermal relay to prevent an
overheat and burnout of the brake resistor.
(The brake resistor can not be connected
to the FR-D720-008, 014 and FR-D720S-
008, 014.)
Forward
rotation start
Reverse
rotation start
Middle
speed
High
speed
Low
speed
Control input signals (No voltage input allowed)
24VDC power supply
(Common for external power supply transistor)
Contact input common
STR
STF
RH
RM
RL
SD
PC
Relay output
Running
Open collector output
Open collector output common
Sink/source common
RUN
SE
A
B
C
Frequency setting signals (Analog)
2 0 to 5VDC
10(+5V)
2
3
1
4 4 to 20mADC
Frequency
setting
potentiometer
1/2W1kΩ
Terminal 4
input
(Current
input)
(+)
(-)
5(Analog common)
*5 It is recommended to use 2W1kΩ
when the frequency setting signal
is changed frequently.
*5
*2 When using terminals PC-
SD as a 24VDC power
supply, take care not to
short across terminals
PC-SD.
PU
connector
*1. DC reactor (FR-HEL)
When connecting a DC reactor, remove the
jumper across P1-P/+
Control circuit terminal
Main circuit terminal
Sink logic
Jumper
*1
*7
*6
*2
*3
*4
Terminal functions vary
with the input terminal
assignment (Pr. 178 to
Pr. 182)
Multi-speed selection
Terminal functions vary by
Pr. 190 RUN terminal function
selection
Terminal functions vary
by Pr. 192 A,B,C terminal
function selection
SINK
SOURCE
VI
*4
0 to 5VDC
(0 to 10VDC)
0 to 10VDC
*4 Terminal input
specifications can be
changed by analog input
specifications switchover
(Pr. 267). Set the
voltage/current input
switch in the "V" position
to select voltage input (0
to 5V/0 to10V) and "I"
(initial value) to select
current input (4 to 20mA).
Voltage/current
input switch
Main circuit
Control circuit
R
Relay output
(Fault output)
Brake unit
(Option)
*8 Common terminal of
terminal SO is terminal SC.
(Connected to terminal SD
inside of the inverter.)
*3 Terminal input specifications
can be changed by analog
input specifications
switchover (Pr. 73).
Terminal 10 and terminal 2
are used as PTC input
terminal (Pr. 561).
Output shutoff (Line 1)
Output shutoff (Line 2)
Common terminal
Safety stop signal
S1
S2
SC
Safety monitor output *8
SO
Shorting
wire
Single-phase
AC power
supply
MCCB MC
R/L1
S/L2
Single-phase power input
*6 A brake transistor is not built-in to the
FR-D720-008, 014 and FR-D720S-008,
014.
AM
5
(+)
(-)
Analog signal output
(0 to 10VDC)
Inrush current
limit circuit
24V
Output shutoff
circuit
For manufacturer setting