Final Checks - Siemens SIMOTICS XP 1MB155 Operating Instructions Manual

Low-voltage motors
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for this temperature. Do not exceed the maximum frequency dependent on the number of
poles, which is stamped on the rating plate.
System, converter - cable - electrical machine
Please observe the information in accordance with EN / IEC 60034-17 and EN / IEC 60034-
25 regarding winding stress. For line supplies with operating voltages up to 690 V, the
maximum value of the voltage peaks at the end of the cable must not exceed twice the value
of the converter's DC-link voltage.
6.8

Final checks

Before closing the terminal box/terminal base of the machine enclosure, check the following:
● Establish the electrical connections in the terminal box in accordance with the details in
the sections above and tighten with the correct torque.
● Maintain the air clearances between non-insulated parts as described in Chapter
Minimum air clearances. (Page 69):
● Avoid protruding wire ends.
● In order not to damage the cable insulation, freely arrange the connecting cables.
● Connect the machine corresponding to the specified direction of rotation.
● Keep the inside of the terminal box clean and free from trimmed-off ends of wire.
● Ensure that all seals and sealing surfaces are undamaged and clean.
● Correctly and professionally close unused openings in the terminal boxes. Please
observe the specifications in the sections above and tighten with the correct torque.
See also
Tightening torques for screw and bolt connections (Page 143)
1MB155 / 1MB555
Operating Instructions, 03/2018, A5E41926185A
Electrical connection
6.8 Final checks
79

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