Siemens S5-155U System Manual page 322

Installation and Startup
8.2.4
Connecting the Signal Lines The modules have 20 or 42-way blade connectors with contact blades
Terminal Connector Max.
Type Type No. of
6ES5 497- Con-
tacts
Crimp 4UA12 42
connec-
tion
4UA22 42
4UA42 20
Screw 4UB12 42
connec- 4UB32
tion
4UB22 25
4UB42 20
8 - 24
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
Cross-Sec. of Connector for
Signal or Rated Voltage
Supply
Conductor
2
0.5 to 1.5 mm 5 to 60 V DC
2
0.5 to 1.5 mm V5 to 60 V DC
2
0.5 to 1.5 mm 24 to 230 V AC 40 mm 435, 436, 455, 456
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 40 mm 435, 436, 455, 456
2
2 x 2.5 mm
Caution
Only extra-low voltage ≤ 60 V DC with safety separation from
system 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.
2
.
Front Module 6ES5-
Con-
nector For Operation
Width With Fan Without Fan
20 mm 420, 430, 431, -
432, 434, 441,
451, 458
40 mm 453, 454, 457 420, 430, 431,
432, 434, 441,
451, 453, 454,
457, 458
40 mm 420, 430, 431, 432, 434, 441,
20 mm 451, 453, 454, 457, 458
40 mm 454
System Manual
C79000-B8576-C199-03