Wiring; Terminal Connection Diagram - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Wiring

2.1 Wiring

2.1.1

Terminal connection diagram

Sink logic
*1. DC reactor (FR-HEL)
Main circuit terminal
Be sure to connect the DC reactor
supplied with the 75K or higher.
Control circuit terminal
When a DC reactor is connected to
the 55K or lower, remove the jumper
across P1 and P/+.
Three-phase AC
power supply
*2. To supply power to the
control circuit separately,
remove the jumper across
R1/L11 and S1/L21.
Control input signals (No voltage input allowed)
Terminal functions vary with
the input terminal
assignment (Pr. 178 to Pr. 189)
(Refer to page 231)
holding selection
Multi-speed
selection
*3.JOG terminal can be used
as pulse train input terminal.
Use Pr. 291 to select
Jog operation
JOG/pulse.
Second function selection
*4. AU terminal can be
used as PTC input
terminal.
Terminal 4 input selection
(Current input selection)
Selection of automatic restart
after instantaneous
power failure
Contact input common
(Common for external power supply transistor)
Frequency setting signal (Analog)
Frequency setting
potentiometer
1/2W1k Ω
*6
* 5. Terminal input specifications
can be changed by analog
input specifications
Auxiliary
switchover (Pr. 73, Pr. 267).
input
Set the voltage/current input
switch in the OFF position to
Terminal
select voltage input (0 to 5V/0
4 input
to10V) and ON to select
(Current
current input (4 to 20mA).
input)
(Refer to page 286)
*6 . It is recommended to use 2W1kΩ
when the frequency setting signal
is changed frequently.
CAUTION
· To prevent a malfunction due to noise, keep the signal cables more than 10cm away 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.
· Set the voltage/current input switch correctly. Different setting may cause a fault, failure or malfunction.
14
Earth
(Ground)
MC
MCCB
R/L1
S/L2
T/L3
R1/L11
Jumper
S1/L21
*2
Earth
(Ground)
Forward
STF
rotation
start
STR
Reverse
rotation
start
STOP
Start self-
RH
High speed
RM
Middle
speed
RL
Low speed
JOG
RT
MRS
Output stop
RES
Reset
AU
CS
SD
PC
24VDC power supply
10E(+10V)
10(+5V)
3
2
2
5
1
(+)
1
(-)
(+)
4
(-)
Connector
for plug-in option
connection
Brake unit
*1
(Option)
R
*8
Jumper
Jumper Jumper
P1 P/+ PX PR
R
Inrush current
limit circuit
ON
EMC filter
ON/OFF
OFF connecter
*9
Main circuit
Control circuit
*3
*4
AU
PTC
24V
PU
connector
*5 Voltage/current
input switch
4 2
ON
USB
OFF
connector
0 to 5VDC
(Initial value)
0 to 10VDC
selectable
*5
0 to 20mADC
(Analog common)
0 to ± 10VDC (Initial value)
selectable
0 to ± 5VDC
*5
4 to 20mADC (Initial value)
0 to 5VDC
*5
selectable
0 to 10VDC
Option connector 1
Option connector 2
Option connector 3
Terminating
resistor
*7. A CN8 connector (for MT-BU5) is provided
with the 75K or higher.
*8. Brake resistor (FR-ABR)
Remove the jumper across terminal PR-PX
when connecting a brake resistor.
(0.4K to 7.5K)
CN8
N/-
Terminal PR is provided for the 0.4K to 22K.
*7
Install a thermal relay to prevent an overheat
and burnout of the brake resistor.
(Refer to page 40)
U
V
W
*9.The FR-A720-0.4K and 0.75K
are not provided with the EMC
filter ON/OFF connector. (Always on)
C1
Terminal functions
B1
Relay output 1
vary with the output
(Fault output)
terminal assignment
A1
(Pr. 195, Pr. 196)
(Refer to page 239)
C2
B2
Relay output 2
A2
Open collector output
RUN
Running
Terminal functions
SU
vary with the output
Up to frequency
terminal assignment
IPF
Instantaneous
(Pr. 190 to Pr. 194)
power failure
(Refer to page 239)
OL
Overload
FU
Frequency detection
SE
Open collector output common
Sink / source common
* 10. It is not necessary
when calibrating the
indicator from the
operation panel.
+
-
FM
*11
Calibration
resistor * 10
SD
AM
(+)
Analog signal output
(0 to 10VDC)
5
(-)
RS-485 terminals
TXD+
Data transmission
TXD-
RXD+
Data reception
RXD-
SG
GND
VCC (Permissible load
5V
current 100mA)
(Refer to page 45)
Motor
IM
Earth (Ground)
Relay output
*11. FM terminal can
be used for pulse
train output of open
collector output
using Pr.291.
Indicator
(Frequency meter, etc.)
Moving-coil type
1mA full-scale