Size Of Grounding Conductor Screw; Final Measures - Siemens SIMOTICS SD Operating Instructions Manual

Electrical connection

6.5 Final measures

6.4.4

Size of grounding conductor screw

Table 6- 13
For machines of size 80 ... 90 with central terminal-box locking, the ground conductor can also be
Table 6- 14
6.5 Final measures
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.
● The clearances between non-insulated parts have been maintained:
≥ 5.5 mm to 690 V, ≥ 8 mm to 1000 V.
● 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.
Before closing the terminal box, check that
● the air clearances for explosion-protected machines (with the exception of machines for
Zone 22) between non-insulated parts are maintained: ≥ 10 mm to 690 V.
● the minimum creepage distance for explosion-protected machines (with the exception of
machines for Zone 22) between non-insulated parts is maintained: ≥ 12 mm to 690 V.
62
Size of grounding conductor screw external grounding (except for 1MJ machines)
Frame size
63 ... 90
100 ... 112
132 ... 180
200 ... 225
200 1LG4/6, 1LE1
200 ... 315 1LG, 1LE1, 1MA
connected with a cable lug in accordance with DIN46237, size M4.
Size of grounding conductor screw external grounding for 1MJ machines
Frame size
71 ... 180
200 ... 315
Thread size for the grounding conductor
M3.5 / M4
M5
M6
M8
2x M6
2x M8
Thread size for the grounding conductor
2x M6
2x M8
Operating Instructions, 05/2014, 5 610 00000 02 000
Low-voltage motors