Internal Block Diagram - Mitsubishi Electric FR-A700 Technical Manual

1.3 Standard connection diagram and terminal
specifications
1.3.1

Internal block diagram

(1) FR-A700
MCCB
Three-phase AC
power supply
Jumper
Forward rotation start
*6
Reverse rotation start
*6
Start self-holding selection
*6
High speed
*6
Multi-speed
Middle speed
*6
selection
Low speed
*6
Second function selection
*6
Output stop
*6
Reset
*6
Selection of automatic restart
after instantaneous
power failure
*6
Jog mode
(Pulse train input)
*6
Terminal 4 input selection
(PTC input)
*6
Contact input common
24VDC power supply
(Common for external power supply transistor)
Frequency setting
potentiometer
1/2W1kΩ *8
Terminal 4 input
(+)
(Current input) (-)
(+)
Auxiliary
input (-)
*1 A common mode choke is provided for the 55K or less.
*2 For the 75K or more, a jumper across terminal P1-P/
When a DC reactor is connected to the 55K or less, remove the jumper across P1-P/
*3 A relay is used for the 200V class 11K and 30K to 90K and 400V class 11K, 15K and 110K to 500K.
*4 The 200V class 0.4K and 0.75K are not provided with the EMC filter ON/OFF connector.
*5 To supply power to the control circuit separately, remove the jumper across R/L1-R1/L11 and S/L2-S1/L21.
*6 Terminal function can be changed using [Pr. 178 to Pr. 189 Input terminal selection].
*7 Terminal input specifications can be changed by analog input specifications switchover ([Pr. 73, Pr. 267]). Note that the
current at terminal 2 and 4 is always 4 to 20mA when the voltage/current input switch is set to ON.
Terminal 2 : Initial value 0 to 5VDC (can be changed to 0 to 10VDC, 4 to 20mADC)
Terminal 4 : Initial value 4 to 20mADC (can be changed to 0 to 5VDC, 0 to 10VDC)
Terminal 1 : Initial value 0 to
*8 It is recommended to use 2W1k
*9 Remove the jumper across terminal PR-PX when connecting a brake resistor. (0.4K to 7.5K)
Terminal PR is provided for the 0.4K to 22K.
*10 The built-in brake resistor is provided for the 7.5K or less. A brake transistor is provided for the 22K or less.
*11 A CN8 connector is provided for the 75K or more.
*12 Terminal function can be changed using [Pr. 190 to Pr. 196 Output terminal selection].
*13 It is not necessary when calibrating the meter from the operation panel.
MC
Converter
R/L1
S/L2
T/L3
Capacitive
Zero-phase
filter
reactor
*1
ON
OFF
R1/L11
S1/L21
*5
Earth
(Ground)
STF
STR
STOP
RH
RM
RL
RT
MRS
RES
CS
JOG
[Pr.291
= 0, 10, 20]
AU
AU
PTC
AU/PTC
switch over
switch
24V
SD
PC
10V
5V
10E
10
3
2 *7
2
1
Voltage/
current
input switch
*7
5
Voltage/
current
input switch
*7
4 *7
1 *7
10VDC (can be changed to 0 to
when the frequency setting signal is changed frequently.
Jumper
Jumper
*2
N/- PR PX
P1 P/+
R
*3
+
C
TR
*10
CHARGE
EMC filter
ON/OFF
Voltage
Current
connecter detection
detection
*4
Control
power
POWER
supply
5V
Control
circuit
[Pr.291 =
1, 11, 21, 100]
Option
connector 1
PU
connector
Option
connector 2
Option
Operation
connector 3
panel
FR-DU07
USB
connector
is not provided. Always connect a DC reactor provided.
+
5VDC)
24
SPECIFICATIONS
*9
CN8
Inverter *11
U
Motor
V
R
IM
W
*10
Earth (Ground)
Gate drive
circuit
RA A1
B1
Relay output 1
(Fault output)
C1
RA
A2
B2
Relay output 2
C2
Indicator
(Frequency meter, etc.)
[Pr.291 = 10, 11,
20, 21, 100]
FM
Calibration
resistor
SD
[Pr.291 = 0, 1]
AM
5
RUN
Running
*12
SU
Up to frequency
IPF
Instantaneous power failure
OL
Overload
*12
FU
Frequency detection
Open collector output common
SE
Sink/source common
TXD+
TXD-
RXD+
RXD-
SG
5.5V
Terminating
VCC
resistor
5V
(Permissible load
current 100mA)
.
+
*12
*12
Moving-coil type
1mA full-scale
+ -
* 13
(+)
Analog signal output
(0 to 10VDC)
(-)
*12
*12
*12
Data
transmission
Data
reception
RS-485
terminals
GND