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8.2.4
Connecting the Signal Lines
The modules have 20 or 42-way blade connectors with contact blades
measuring 2.4 x 0.8 mm. Front connectors for 20 and 40 mm mounting width
with crimp connection and 40 mm mounting width with screw connection are
provided to connect the signal lines (screwdriver blade width: 3.5 mm,
maximum torque: 0.8 Nm).
Use stranded conductor to facilitate handling of the front connector.
When the crimp contact is inserted in the plastic body of the front connector,
a click can clearly be heard. This indicates that the contact is engaged. For
jumpering or to correct the wiring, you can remove the contacts with a
releasing tool (see ordering information) without having to pull out the front
connector.
Ferrules are not required for screw connections, because the screw terminals
are provided with wire protection. You can use ferrules of 7 mm in length to
DIN 46228. The maximum terminal area is 2 x 2.5 mm
Terminal
Connector
Max.
Type
Type
Type 6ES5
Type 6ES5
No of
No. of
497
497-
Con-
Con
tacts
Crimp
4UA12
42
Connec-
tion
4UA22
42
4UA42
20
Screw
4UB12
42
Connec-
4UB32
tion
tion
4UB22
25
4UB42
20
Caution
!
Only extra-low voltage
voltage may be used for the 24 V DC supply and for the 24 V DC input
signals. Safety separation can be implemented to the requirements of,
amongst other sources, VDE 0100 Part 410/HD 384-4-41/IEC 364-4-41
(as functional extra-low voltage with safety separation) or
VDE 0805/EN 60950/IEC 950 (as safety extra-low voltage SELV) or
VDE 0106 Part 101.
System Manual
C79000-G8576-C199-06
Cross-Sec. of
Connector for
Signal or Sup-
Signal or Sup-
Rated Voltage
Rated Voltage
ply Conductor
ply Conductor
2
0.5 to 1.5 mm
5 to 60 V DC
2
0.5 to 1.5 mm
5 to 60 V DC
2
0.5 to 1.5 mm
24 to 230 V AC
0.5 to
5 to 60 V DC
2
2 x 2.5 mm
0.5 to
5 to 60 V DC
2
2 x 2.5 mm
0.5 to
24 to 230 V AC
2
2 x 2.5 mm
60 V DC with safety separation from system
Digital Input/Output Modules
2
.
Front
Module 6ES5-
Con-
Con-
nector
nector
For Operation
Width
With Fan
Without Fan
20 mm
420. 430.
431, 432.
434, 441,
451, 454-14,
458
40 mm
453, 454, 457
420. 430.
431, 432.
434, 441,
451, 453,
454, 457,
458
40 mm
435, 436, 455, 456
40 mm
420. 430. 431, 432. 434, 441,
20 mm
451, 453, 454, 457, 458
40 mm
454
40 mm
435, 436, 455, 456
–
8-21
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