Mitsubishi Electric MELSEC L Serie Manuel D'installation page 3

Mounting the modules on a DIN rail
Pull down DIN rail hooks on
the back of the modules until
they click.
Hang the upper tabs of the
modules on a DIN rail, and
push the modules in position.
Lock the DIN rail hooks to the
DIN rail to secure the mod-
ules in the position.
Pull the hooks up until they
click. If the hooks are beyond
the reach, use a tool such as
a driver.
Mount stoppers on the DIN-rail beside the leftmost and rightmost module,
to avoid lateral sliding.
NOTE
Do not slide modules from the edge of the DIN rail when mounting. Doing so
may damage the metal part located on the back of the module.
Wiring
E
CAUTION
● Do not lay signal cables close to the main circuit, high-voltage power
lines, or load lines. Otherwise effects of noise or surge induction are
likely to take place. Keep a safe distance of more than 100 mm from
the above when wiring.
● Wire cables of the power supply for the programmable controller, I/O
power supply, and motor power supply separately.
● Fix the cables connected to a module so that the terminals are or the
connector is not directly stressed.
Modules with terminal block
Always use a solderless terminal of 0.8 mm or less in thickness.
Terminal block Up to two solderless terminals
Solderless terminals
can be connected to one terminal
block.
A solderless terminal with insulation sleeve cannot be used for a terminal
block. Use only wires with a size of 0.3 mm² to 0.75 mm². Twist the end of
strand wires and use ferrules. It is recommended to cover the wire connections
with insulation tubes.
Tighen the screws of the mod ule using torque within the following ranges.
Loose screws may cause short circuits, mechanical failures or malfunction.
Screw Torque
Terminal block screw (M3 screw) 0.42 to 0.58 Nm
Terminal block mounting screw (M3.5 screw) 0.66 to 0.89 Nm
Modules with 40-pin connector(s)
The following connectors are applicable for the I/O modules.
Model Description
A6CON1 Soldering connector (straight out type)
A6CON2 Crimp connector (straight out type)
A6CON3 Pressure-displacement connector
Soldering connector
A6CON4
(both for straight out and 45-degree types)
Wiring of the input modules
Module with terminal block
● LX10
Connection diagram Pin Signal Pin
TB2 X01 TB1
TB1
TB4 X03 TB3
TB6 X05 TB5
TB8 X07 TB7
TB10 X09 TB9
TB12 X0B TB11
TB16
TB14 X0D TB13
TB17
TB16 X0F TB15
100–120 V AC
TB18 Vacant TB17
● LX28
Connection diagram Pin Signal Pin
TB2 TB1
TB1
TB4 TB3
TB6 TB5
TB8 TB7
TB10 Vacant TB9
TB12 TB11
TB15
TB14 TB13
TB17
TB16 TB15
100–240 V AC
TB18 TB17
● LX40C6
Connection diagram Pin Signal Pin
TB2 X01 TB1
TB1
TB4 X03 TB3
TB6 X05 TB5
TB8 X07 TB7
TB10 X09 TB9
TB16
TB12 X0B TB11
TB14 X0D TB13
TB17
TB16 X0F TB15
24 V DC TB18 Vacant TB17
—
24 V DC
Modules with 40-pin connector
● LX41C4
Connection diagram Pin
I/O module
B20
B19
LX41C4
LX42C4
B18
LY41NT1P
B17
LY42NT1P
LY41PT1P
B16
B20
LY42PT1P
B15
B14
B13
B12
A05
Signal B11
B01, B02
X00 B10
X02 B09
24 V DC
X04 B08
X06 B07
24 V DC
X08 B06
X0A B05
X0C B04/B03
X0E B02/B01
COM
● LX42C4
Left connector
Signal Pin Signal Pin Signal Pin
X00
1B20 X00 1A20 X10 2B20
X01 1B19 X01 1A19 X11 2B19
X02 1B18 X02 1A18 X12 2B18
X03 1B17 X03 1A17 X13 2B17
X04 1B16 X04 1A16 X14 2B16
X05 1B15 X05 1A15 X15 2B15
X06 1B14 X06 1A14 X16 2B14
X07 1B13 X07 1A13 X17 2B13
COM 1B12 X08 1A12 X18 2B12
1B11 X09 1A11 X19 2B11
1B10 X0A 1A10 X1A 2B10
Signal
1B09 X0B 1A09 X1B 2B09
X00
1B08 X0C 1A08 X1C 2B08
X02
1B07 X0D 1A07 X1D 2B07
X04
1B06 X0E 1A06 X1E 2B06
X06
1B05 X0F 1A05 X1F 2B05
X08
1B04/ 1A04/ 2B04/
X0A Vacant
1B03 1A03 2B03
Vacant
X0C
1B02/ 1A02/ 2B02/
COM1
1B01 1A01 2B01
X0E
COM Connection diagram
Left connector
1B20
1A05
1B01,
1B02
24 V DC
24 V DC
Wiring of the output modules
Modules with terminal block
● LY10R2 – Relay type
Signal Pin Signal
Connection diagram
X00 A20 X10
X01 A19 X11
Load
TB1
X02 A18 X12
X03 A17 X13
X04 A16 X14
X05 A15 X15
X06 A14 X16
Load
TB16
X07 A13 X17
X08 A12 X18
X09 A11 X19
TB17
X0A A10 X1A
200 V AC
X0B A09 X1B
24 V DC
X0C A08 X1C
X0D A07 X1D
X0E A06 X1E
● LY20S6 – Triac type
X0F A05 X1F
Connection diagram
Vacant A04/A03
Vacant
COM A02/A01 Load
TB1
Rechter Anschluss
Signal Pin Signal
X20 2A20 X30
Load
TB16
X21 2A19 X31
X22 2A18 X32
X23 2A17 X33
TB17
X24 2A16 X34
X25 2A15 X35 100–240 V AC
X26 2A14 X36
X27 2A13 X37
X28 2A12 X38
X29 2A11 X39
X2A 2A10 X3A
X2B 2A09 X3B
X2C 2A08 X3C
X2D 2A07 X3D
X2E 2A06 X3E
X2F 2A05 X3F
2A04/
Vacant
2A03
Vacant
2A02/
COM2
2A01
Right connector
2B20
2A05
2B01,
2B02
24 V DC
24 V DC
Pin Signal Pin Signal
TB2 Y01 TB1 Y00
TB4 Y03 TB3 Y02
TB6 Y05 TB5 Y04
TB8 Y07 TB7 Y06
TB10 Y09 TB9 Y08
TB12 Y0B TB11 Y0A
TB14 Y0D TB13 Y0C
TB16 Y0F TB15 Y0E
TB18 Vacant TB17 COM
100/
or
—
Pin Signal Pin Signal
TB2 Y01 TB1 Y00
TB4 Y03 TB3 Y02
TB6 Y05 TB5 Y04
TB8 Y07 TB7 Y06
TB10 Y09 TB9 Y08
TB12 Y0B TB11 Y0A
TB14 Y0D TB13 Y0C
TB16 Y0F TB15 Y0E
TB18 Vacant TB17 COM
—