Mitsubishi Electronics FR-A700 Manual De Usuario
330
Communication operation and setting
4.24.2 Wiring and arrangement of RS-485 terminals
(1) RS-485 terminal layout
(2) Connection of RS-485 terminals and wires
Loosen the terminal screw and insert the cable into the terminal.
Name
Description
RDA1
(RXD1+)
Inverter receive+
RDB1
(RXD1-)
Inverter receive-
RDA2
(RXD2+)
Inverter receive+
(for branch)
RDB2
(RXD2-)
Inverter receive-
(for branch)
SDA1
(TXD1+)
Inverter send+
SDB1
(TXD1-)
Inverter send-
SDA2
(TXD2+)
Inverter send+
(for branch)
SDB2
(TXD2-)
Inverter send-
(for branch)
P5S
(VCC)
5V
Permissible load current 100mA
SG
(GND)
Earth (Ground)
(connected to terminal SD)
Screw size
M2
Wire the stripped cable after twisting it to prevent it from
becoming loose. In addition, do not solder it.
becoming loose. In addition, do not solder it.
Use a blade terminal as necessary.
Tightening
torque
torque
0.22N•m to 0.25N•m
Cable size
0.3mm
2
to 0.75mm
2
Screwdriver
Small flathead screwdriver
(Tip thickness: 0.4mm /tip width: 2.5mm)
(Tip thickness: 0.4mm /tip width: 2.5mm)
CAUTION
Undertightening can cause signal loss or malfunction. Overtightening can cause a short circuit or malfunction due to damage to
the screw or unit.
the screw or unit.
REMARKS
Information on blade terminals
Introduced products (as of February 2012)
z
Introduced products (as of February 2012)
z
Phoenix Contact Co.,Ltd.
z
NICHIFU Co.,Ltd.
Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and power circuits
(including the 200V relay sequence circuit).
(including the 200V relay sequence circuit).
When using the blade terminal (without insulation sleeve), use care so that the twisted wires do not come out.
RXD
RDA1
(RXD1+)
RDB1
(RXD1-)
RDA2
(RXD2+)
RDB2
(RXD2-)
SDA1
(TXD1+)
SDB1
(TXD1-)
SDA2
(TXD2+)
SDB2
(TXD2-)
P5S
(VCC)
SG
(GND)
P5S
(VCC)
SG
(GND)
VCC
TXD
OPEN
100
Ω
Terminating resistor switch
Factory-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100
Factory-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100
Ω" position.
5mm
Cable stripping size
Terminal Screw
Size
Wire Size (mm
2
)
Blade Terminal Model
Blade Terminal
Crimping tool
with insulation sleeve
without insulation sleeve
M2
0.3, 0.5
AI 0,5-6WH
A 0,5-6
CRIMPFOX 6
Terminal Screw
Size
Wire Size (mm
2
)
Blade Terminal Product
Number
Insulation Product
Number
Blade Terminal
Crimping tool
M2
0.3 to 0.75
BT 0.75-7
VC 0.75
NH 69