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Electrical connection
6.3 Terminal box
● 1XB7740
● 1XB7750
Rotating a terminal box with mounted stator cables
1. Ensure that the motor is disconnected from the power supply.
2. Release two diagonally opposed screws for the cover, and secure the cover using two M10
3. If the motor is already connected:
4. Remove the grounding straps on two sides of the terminal box lower section.
5. Remove the screwed joints of the lower section with the console or optionally the cable
6. Screw in two eye-bolts diagonally in the M10 thread at the corners. Slightly raise the terminal
7. Rotate the terminal box through ±90° in the desired direction. Carefully place the terminal
8. Screw the terminal box with the console / cable duct (4 x M16, tightening torque 170 Nm).
9. Fasten the grounding straps to the terminal box lower section and the console or cable duct:
10.Reconnect the power supply cables. More information:
11.Screw in the two diagonally arranged threaded bars and slide the cover onto these bars.
86
– For 12 or fewer cables and lower cross-sections, you can rotate the terminal box with
installed stator cables through ±90°.
– For more than 12 cables - or for cables with a cross-section greater than 50 mm² - you
must remove the internal stator cables before rotating the terminal box.
– Remove the internal stator cables before rotating the terminal box.
threaded bars screwed in diagonally opposing one another. Release the two other screws
and lift the cover off the terminal box. The terminal box cover is very heavy. Especially when
in a lateral position, ensure that the terminal box does not fall down.
– Remove the cables of the power supply.
– Release the screw connection of the cable entry. Remove the cables through the
opening.
duct.
box housing using a crane.
box down. Take care not to damage the seal.
– After rotation, remove the plugs of the two nearest M8 threads on the console or cable
duct.
– Grind the surface at the drilled holes so that the grounding straps have metallic contact.
– Then fasten the two straps to the terminal box lower section and the console or cable
duct (4x M8, tightening torque 11 Nm).
– Protect the bare areas at the contact with corrosion protection.
– Connecting the grounding conductor (Page 89)
– Introducing and routing the cables ...
– Connecting cables ...
Take care not to damage the seal.
SIMOTICS FD 1MH1
Operating Instructions 08/2017
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