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2. PERFORMANCE
2.8 Performance Specifications of the Terminal Block
Terminal
Signal
Number
Name
1
L
AC power input
2
LG
Line ground. Protective ground conductor with class D (class-3).
3
N
AC power input
4
NC
Must not be used
5
NC
6
SDA/RDA
7
SDB/RDB
Simple PLC link
8
SG
9
+24V
24VDC output for external service power supply
10
SLD
Simple PLC link
11
24G
24VDC ground for external service power supply
12
FG
Grounding terminal. ground conductor with class D (class-3)
Table 2.14 provides the terminal block performance specification list of the
A1FXCPU.
Table 2.14 Performance List
Terminal Block Front View
1
3
L
N
2
4
(LG)
NC
1
3
2
4
POINT
(1) Tighten the terminal screws within the following tightening torque.
Terminal block screw (M3 screw) 39 to 59N·cm
(2) Tighten the terminal block mounting screws within the following tightening
torque.
Terminal block screw (M4 screw) 78 to 1189N·cm
(3) The applicable wire sizes are 0.3 to 2mm
5
7
9
11
SDB
OUT
OUT
NC
/RDB
+24V
24G
6
8
10
SDA
SG
SLD
/RDA
5
7
9
11
6
8
10
Application
2 - 19
MELSEC-A
12
(FG)
12
2
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