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(3) Examples of replacement of A (Small Type) modules with L Series modules
Existing module
Module model
A1SX30
(Shared by positive common
and negative common types)
A1SX40 (Positive common)
A1SX40-S1 and A1SX40-S2
(Positive common)
A1SX41 (Positive common)
A1SX41-S1 and A1SX41-S2
(Positive common)
A1SX42 (Positive common)
A1SX42-S1 and A1SX42-S2
(Positive common)
A1SX71
(Shared by positive common
and negative common types)
A1SX80 (-S1 and S2)
(Shared by positive common
and negative common types)
A1SX81
(Shared by positive common
and negative common types)
A1SX81-S1 and A1SX81-S2
(Shared by positive common
and negative common types)
A1SX82-S1
(Shared by positive common
and negative common types)
● Example of selection of replacement for AX71
Although AX71 can be shared by 5/12/24-V DC positive and negative common types, the module to
be selected as a replacement varies depending on the working condition.
It is necessary to confirm the current working condition and select an appropriate one.
(1)‥ Comparison‥of‥specifications‥for‥AX71‥and‥replacement‥modules
Specification
Number of input points
Rated input voltage
5 V DC/12 V DC/24 V DC
3.5 mA/2 mA/4.5 mA (TYP),
Rated input current
5.5 mA/3 mA/6 mA (MAX)
Working voltage range
10.2 to 26.4 V DC (SW OFF)
Common terminal
arrangement
8 points/common terminal
External connection
38-point terminal block connector
method
*1
Conversion adapter
*1: Wiring conversion adapter manufactured by Mitsubishi Electric Engineering Co., Ltd.
The terminal block for AX71 with the existing wiring can be used by using the conversion adapter.
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Working conditions
Common
Working
terminal
voltage
arrangement
Positive
24 V DC
LX40C6
Negative
12 V DC
Common
ー
12/24 V AC
24 V DC
Positive
LX40C6
ー
12 V DC
24 V DC
Positive
LX40C6
24 V DC
Positive
LX41C4
12 V DC
Positive
24 V DC
Positive
LX41C4
24 V DC
Positive
LX42C4
12 V DC
Positive
24 V DC
Positive
LX42C4
24 V DC
Common
LX41C4
ー
5/12 V DC
24 V DC
Common
LX40C6
ー
12 V DC
24 V DC
Common
LX41C4
ー
12 V DC
24 V DC
Common
LX41C4
24 V DC
Common
LX42C4
AX71
32 points
5 V DC: approx. 1.2 mA
12 V DC: approx. 3.3 mA
4.5 to 5.5 V DC (SW ON),
(Ripple ratio within 5%)
10.2 to 14.4 V DC
(Ripple ratio within 5%)
Shared by positive and
Shared by positive and
negative common types
negative common types
32 points/common terminal
(M3 × 6 screws)
―
10.1 Select replacement module for DC input module
Replacement module
Conversion
Module model
adapter
ー
ー
(No replacement model)
(No replacement model)
ERNT-ASLTX40
(No replacement model)
ERNT-ASLTX40
ー
(No replacement model)
ー
ー
(No replacement model)
ー
ー
(No replacement model)
ERNT-ASLTXY80
(No replacement model)
ERNT-ASLCXY81
(No replacement model)
ERNT-ASLCXY81
ー
QX71
32 points
5 V DC/12 V DC
Approx. 6 mA
4.5 to 6 V DC
20.4 to 28.8 V DC
(Ripple ratio within 5%)
Positive common type
32 points/common terminal
40-pin connector
40-pin connector
(optional)
ERNT-AQTX41
ERNT-AQTX41
183
Remarks
Examine whether to input to LX40C6 after
externally rectifying and smoothing 24 V AC.
• D-sub 37-pin connector -> 40-pin connector
• D-sub 37-pin connector -> 40-pin connector
QX41-S2
QX81-S2
32 points
32 points
24 V DC
24 V DC
Approx. 6 mA
20.4 to 28.8 V DC
(Ripple ratio within 5%)
Negative common type
32 points/common terminal
D-sub 37-pin connector
(optional)
(optional)
ERNT-AQTX81
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