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Mitsubishi Electric MELSEC-I/OLINK Handbook Page 62

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6
REPLACING THE I/O MODULES
Specifications
Operation indicator
External wiring method
Transmission circuit included
Applicable wire size
Applicable crimping
terminal
Voltage
Ripple voltage 4Vp-p or less
External
power
supply
Current
(24VDC TYP. all points ON)
Voltage
I/O module
power
supply
Current
External dimensions
50(H) × 114(W) × 66(D) mm
Installation method
Weight
6
- 29
AJ55TB32-8DR
A20SB-04US
ON indication (LED)
24-point terminal
24-point terminal block
(M3 screw)
Transmission circuit
2
(when the following applicable crimping
0.75 to 2mm
1.25-3, 1.25-YS3A,
2-S3, 2-YS3A
V1.25-3, V1.25-YS3A,
V2-S3, V2-YS3A
24VDC ± 10%
23mA
15.6 to 27.6VDC
50mA
40(H) × 65(W)
Screw mounted
Mounted to DIN rail
0.3kg
: Compatible,
A20PB-04RS
ON indication (LED)
20-point terminal
block
block
(M3 screw)
(M3 screw)
Transmission circuit
included
included
2
0.3 to 1.25mm
2
terminals are used: 0.75 to 2mm
)
2
For wire sizes 0.75 to 2mm
R2-3SL, RAV2-3SL, RAP2-3SL,
VD2-3S, VD2-3.5SS, VD2-3.5S,
VDAV2-3.5SS, VDAV2-3.5S
21.6 to 27.6VDC
(ripple voltage 0.5Vp-p or less)
43mA
90mA
40(H) × 100(W)
× 60(D) mm
× 60(D) mm
Screw mounted
Mounted to DIN rail
0.09kg
0.14kg
: Partially changed, ×: Not compatible
Compat-
Precautions for
ibility
replacement
Wiring must be changed.
Existing wires can be used but
applicable crimping terminals
are different.
For details, refer to Section
6.3.
External power supply for the
A20SB-04U is unnecessary.
The A20PB-04RS external
power supply and the I/O
module power supply are
shared.
Operating voltage range is
different.
Because the current
consumption has increased,
the current capacity must be
reviewed.
The shape is different.
×
A mounting space for two
modules is required.
Because mounting hole size is
×
different, reworking is
required.
The A20SB-04US and
A20PB-04RS can be mounted
to the existing DIN rail.
Be careful about the mounting
dimensions as two modules
are required.

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