Mitsubishi Electric MELSEC-I/OLINK Handbook page 64

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) × 177(W) × 66(D) mm
Installation method
Weight
6
- 31
AJ55TB32-16DR A20SB-08UD
ON indication (LED)
30-point terminal
40-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%
45mA
15.6 to 27.6VDC
70mA
40(H) × 140(W)
Screw mounted
Mounted to DIN rail
0.4kg
: Compatible,
A20PB-08RS
ON indication (LED)
30-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)
117mA 104mA
40(H) × 140(W)
× 60(D) mm × 60(D) mm
Screw mounted
Mounted to DIN rail
0.18kg 0.2kg
: 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-08UD is unnecessary.
The A20PB-08RS 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-08UD and
A20PB-08RS can be mounted
to the existing DIN rail.
Be careful about the mounting
dimensions as two modules
are required.