Installation
Mounting a module to a base unit
Wiring
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 insula-
tion tubes.
Connection cables
For connection to a 40-pin connector (RX41C4, RX42C4, RY41NT2P, RY42NT2P
and RH42C4NT2P) the prefabricated connection cables Q40CBL-3M and
Q40CBL-5M can be used.
Please observe the following notes to reduce the effects of power supplies or
other sources for electrical noise:
● Do not bundle AC supply lines together with DC supply lines.
●
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.
● The maximum cable length for in- and output connection is 100 m. To
safely prevent noise you should limit the cable length to 20 m. Take the
voltage drop on the line into consideration.
Wiring of the Input Modules
Modules with screw terminals
(RX10, RX40C7)
The connection diagram for the digital input modules with removable terminals is
printed on the modules. Please observe these diagrams when wiring the modules.
Modules with 40-pin connector
(RX41C4)
(RX42C4)
Wiring of the Output Modules
Modules with screw terminals
(RY10R2, RY40PT5P)
The connection diagram for the digital output modules with removable terminals is
printed on the modules. Please observe these diagrams when wiring the modules.
Modules with 40-pin connector, sink types
(RY41NT2P)
(RY42PT2P)
P
DANGER
Always switch off the power supply to PLC and other external power sup-
plies before performing any installation and wiring work.
E
WARNING
● Only operate the equipment under the conditions described in the
MELSEC iQ-R Hardware Manual. Do not expose the equipment to dust,
oil mist, corrosive or flammable gases, strong vibrations or impacts,
high temperatures, condensation or damp.
● When installing the equipment take care that no shavings, filings or
wire fragments that could cause short circuits fall into the module. Use
the supplied cover to seal the ventilation slits during installation.
Remember to remove the cover after installing the unit, otherwise the
controller can overheat during operation.
● Fix the cables connected to a module so that the terminals or the con-
nector is not directly stressed.
E
WARNING
● Do not open or modify a module. Doing so can cause a failure, mal-
function, injury or fire.
● Always insert the module fixing latch of the module into the module
fixing hole of the base unit. Forcing the hook into the hole will damage
the module connector and module.
● Do not touch the conductive or electronic parts of a module directly.
Doing so can cause a unit malfunction or failure.
햲 After switching off the power
supply, insert the module fixing
latch into the module fixing hole
of the base unit.
햳
Push the module in the direction of
arrow to load it into the base unit.
Secure the module with an additional screw (M3 x 12) to the base unit if
large vibration is expected. This screw is not supplied with the module.
P
DANGER
● Always switch off the power supply to PLC and other external power
supplies before performing any installation and wiring work.
● Before turning on the power supply after installation or wiring close
the terminal cover of the module.
● Caused by an defective output module, outputs can be left on or off.
Build an external monitoring circuit for outputs which can cause seri-
ous trouble.
Connection diagram Pin Signal Pin Signal
B20 X00 A20 X10
B19 X01 A19 X11
B18 X02 A18 X12
B17 X03 A17 X13
B16 X04 A16 X14
B15 X05 A15 X15
B14 X06 A14 X16
B13 X07 A13 X17
B12 X08 A12 X18
B11 X09 A11 X19
B10 X0A A10 X1A
B09 X0B A09 X1B
B08 X0C A08 X1C
B07 X0D A07 X1D
B06 X0E A06 X1E
B05 X0F A05 X1F
B04
Vacant
A04
Vacant
B03 A03
B02 COM A02
Vacant
B01 COM A01
Left connector Right connector
Pin Signal Pin Signal Pin Signal Pin Signal
1B20 X00 1A20 X10 2B20 X20 2A20 X30
1B19 X01 1A19 X11 2B19 X21 2A19 X31
1B18 X02 1A18 X12 2B18 X22 2A18 X32
1B17 X03 1A17 X13 2B17 X23 2A17 X33
1B16 X04 1A16 X14 2B16 X24 2A16 X34
1B15 X05 1A15 X15 2B15 X25 2A15 X35
1B14 X06 1A14 X16 2B14 X26 2A14 X36
1B13 X07 1A13 X17 2B13 X27 2A13 X37
1B12 X08 1A12 X18 2B12 X28 2A12 X38
1B11 X09 1A11 X19 2B11 X29 2A11 X39
1B10 X0A 1A10 X1A 2B10 X2A 2A10 X3A
1B09 X0B 1A09 X1B 2B09 X2B 2A09 X3B
1B08 X0C 1A08 X1C 2B08 X2C 2A08 X3C
1B07 X0D 1A07 X1D 2B07 X2D 2A07 X3D
1B06 X0E 1A06 X1E 2B06 X2E 2A06 X3E
1B05 X0F 1A05 X1F 2B05 X2F 2A05 X3F
1B04
Vacant
1A04
Vacant
2B04
Vacant
2A04
Vacant
1B03 1A03 2B03 2A03
1B02 COM1 1A02
Vacant
2B02 COM2 2A02
Vacant
1B01 COM1 1A01 2B01 COM2 2A01
B20
24 V DC
B02
+-
A05
B01
Connection diagram Pin Signal Pin Signal
B20 Y00 A20 Y10
B19 Y01 A19 Y11
B18 Y02 A18 Y12
B17 Y03 A17 Y13
B16 Y04 A16 Y14
B15 Y05 A15 Y15
B14 Y06 A14 Y16
B13 Y07 A13 Y17
B12 Y08 A12 Y18
B11 Y09 A11 Y19
B10 Y0A A10 Y1A
B09 Y0B A09 Y1B
B08 Y0C A08 Y1C
B07 Y0D A07 Y1D
B06 Y0E A06 Y1E
B05 Y0F A05 Y1F
B04
Vacant
A04
Vacant
B03 A03
B02 V+ A02 COM
B01 V+ A01 COM
Left connector Right connector
Pin Signal Pin Signal Pin Signal Pin Signal
1B20 Y00 1A20 Y10 2B20 Y20 2A20 Y30
1B19 Y01 1A19 Y11 2B19 Y21 2A19 Y31
1B18 Y02 1A18 Y12 2B18 Y22 2A18 Y32
1B17 Y03 1A17 Y13 2B17 Y23 2A17 Y33
1B16 Y04 1A16 Y14 2B16 Y24 2A16 Y34
1B15 Y05 1A15 Y15 2B15 Y25 2A15 Y35
1B14 Y06 1A14 Y16 2B14 Y26 2A14 Y36
1B13 Y07 1A13 Y17 2B13 Y27 2A13 Y37
1B12 Y08 1A12 Y18 2B12 Y28 2A12 Y38
1B11 Y09 1A11 Y19 2B11 Y29 2A11 Y39
1B10 Y0A 1A10 Y1A 2B10 Y2A 2A10 Y3A
1B09 Y0B 1A09 Y1B 2B09 Y2B 2A09 Y3B
1B08 Y0C 1A08 Y1C 2B08 Y2C 2A08 Y3C
1B07 Y0D 1A07 Y1D 2B07 Y2D 2A07 Y3D
1B06 Y0E 1A06 Y1E 2B06 Y2E 2A06 Y3E
1B05 Y0F 1A05 Y1F 2B05 Y2F 2A05 Y3F
1B04
Vacant
1A04
Vacant
2B04
Vacant
2A04
Vacant
1B03 1A03 2B03 2A03
1B02 V+ 1A02 COM1 2B02 V+ 2A02 COM2
1B01 V+ 1A01 COM1 2B01 V+ 2A01 COM2
B20
A05
A01
B01, B02
12/24 V DC
A02
+
–
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