Siemens SIMOTICS FD 1MQ1, Operating And Installation Instructions

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10.Fasten the grounding straps to the terminal box lower section and the console or cable duct:
– 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.
11.Connect the cables in accordance with the circuit diagram on the inside of the cover (M12,
tightening torque 20 Nm). Ensure that the minimum air clearances are observed. More
information:
Minimum air clearances (Page 88)
12.Reconnect the power supply cables. More information:
– Connecting the grounding conductor (Page 77)
– Introducing and routing the cables ...
– Connecting cables ...
13.Screw in the two diagonally arranged threaded bars and slide the cover onto these bars.
Take care not to damage the seal.
14.Fix the two free screw connections and tighten by hand.
15.Remove the threaded bars and screw in the two other screws.
16.Tighten all screws (4 x M10, tightening torque 40 Nm).
See also
Connecting cables with cable lugs (Page 83)
Connecting cables without cable lugs (Page 84)
Bringing cables into the terminal box 1XB... with cable gland (Page 82)
6.3.8 Mounting/removing the terminal box
When removing or installing the terminal box cover, secure it using diagonally arranged M10
threaded bars to prevent it falling.
Removing the terminal box
1. Release two diagonally opposing screws at the terminal box cover and replace them by
threaded bars.
2. Release the two other screws.
3. Carefully pull the terminal box cover over the threaded bars.
Electrical connection
6.3 Terminal box
SIMOTICS FD 1MQ1
Operating Instructions 01/2019
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