
4. Make sure the terminal clamps
③
,
④
are arranged correctly for the size of the conductor.
– Insert the cable into the terminal clamps.
– Tighten the clamping nuts
⑤
with 8 Nm.
Figure 6-6
Connection with terminal clamp (schematic diagram)
5. If you have loosened the terminal clamp screw
②
, then retighten it with the following torque:
Terminal box
Tightening torque
TB3R61 / 1XB1631
40 Nm
1XB7750
20 Nm
6.7.5
Using single-stranded cables
With high currents and where several single-stranded cables are used instead of multiple-
stranded cables, high temperatures can result in the cable entry area due to induced eddy
currents. A short-circuit and an explosion may occur. This can result in death, serious injury, or
material damage.
● After commissioning, ensure that the temperature limits of the connected power cables are
not exceeded during operation. This temperature effect can be reduced by altering the
conditions at the entry points or by using modified cable entry plates after consultation with
the manufacturing plant.
● Use a cable entry plate made of non-ferrous metal.
Electrical connection
6.7 Conductor connection
1MB5 SH 400/450
80
Operating Instructions, 05/2019, A5E45959221A
Содержание SIMOTICS XP 1MB5 SH400
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Страница 10: ...Table of contents 1MB5 SH 400 450 8 Operating Instructions 05 2019 A5E45959221A ...
Страница 64: ...Assembly 5 4 Aligning and fixing the machine 1MB5 SH 400 450 62 Operating Instructions 05 2019 A5E45959221A ...
Страница 106: ...Operation 8 8 Non operational periods 1MB5 SH 400 450 104 Operating Instructions 05 2019 A5E45959221A ...
Страница 154: ...Disposal 11 5 Disposal of components 1MB5 SH 400 450 152 Operating Instructions 05 2019 A5E45959221A ...
Страница 156: ...Service support 1MB5 SH 400 450 154 Operating Instructions 05 2019 A5E45959221A ...
Страница 160: ...Quality documents 1MB5 SH 400 450 158 Operating Instructions 05 2019 A5E45959221A ...
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Страница 166: ...Germany More information www siemens com drives Siemens AG Digital Industries Postfach 48 48 90026 NÜRNBERG ...