Siemens SIMATIC S7-1500 Equipment Manual page 44
Drive controller
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Also See for SIMATIC S7-1500:
- System manual (523 pages) ,
- Function manual (402 pages) ,
- Manual (188 pages)
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Connecting
4.1 Supply voltage X124
The following table shows the pin assignment of the 4-pin connector.
Table 4-1 Connector pin assignment for 24 V DC power supply
The 24 V supply is looped through via the 24 V connector. In the connector, pin 1 is jumpered
to pin 2 and pin 3 is jumpered to pin 4. The maximum current can be limited by the current
carrying capacity of the cable. The current carrying capacity of the cable depends on the
cabling method (e.g. in a cable duct, on a cable rack), among other things.
Select the permissible conductor cross-section in conformance with national rules (NEC, VDE,
etc.) from the following table "Interface X124". The basis for this can be the output current of
the 24 V DC supply or the overcurrent device used in the 24 V circuit. If the short-circuit
current of the utilized 24 V power supply unit is greater than 50 A, an appropriate overcurrent
device that limits the short-circuit current to this value must be used upstream of the product.
NOTE
• The 24 V DC cable must be approved for temperatures of up to 75 °C.
• The maximum permissible cable length is 10 m.
Characteristics of the X124 interface
Table 4-2 Interface X124
Properties
Connector type
Number of connectable conductors
Connectable conductor types and conductor cross-
sections
Stripped length
Tool
Tightening torque
1)
This value must be ensured for the current carrying capacity of the power cable.
44
X124
Pin
Signal name
1
2
3
4
Solid
Flexible
Flexible with wire-end ferrule without plastic
sleeve
Flexible with wire-end ferrule with plastic
sleeve
AWG / kcmil
Meaning
+
Power supply
+
M
Ground
M
Version
4-pin screw-type terminal
1
0.2 mm² ... 2.5 mm²
0.2 mm² ... 2.5 mm²
0.2 mm² ... 2.5 mm²
0.2 mm² ... 1.5 mm²
22 ... 12
6 ... 7 mm
Screwdriver 0.5 x 3 mm (M2.5)
0.4 to 0.5 Nm (3.5 to 4.4 lbf in)
Equipment Manual, 11/2022, A5E46600370-AC
Technical specifications
24 V DC supply voltage (20.4 ...
28.8 V)
Current consumption, max.:
13.1 A
SIMATIC Drive Controller
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