Wiring the S7-400
4-35
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
4.19 Wiring the Front Connector, Screw-Type Terminals
Procedure
To wire the prepared front connector, follow the steps outlined below:
1. Are you using wire end ferrules?
If so: Strip the conductors over 10 mm. Press-fit the wire end ferrules onto the
conductors.
If not: Strip the conductors over 8 to 10 mm.
2. Position the cores. Start at the bottom of the front connector.
3. Screw the ends of the conductors onto the front connector with a tightening
torque of 0.6 to 0.8 Nm Also tighten the unwired terminals.
0.6 ... 0.8 Nm
Figure 4-11 Wiring a Front Connector with Screw-Type Terminals
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