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Electrical connection
6.6 Connecting the auxiliary circuits
6.6.2
Bringing cables into the auxiliary terminal box and routing them
The required data for connecting the auxiliary circuits is located on the terminal diagram on the
inside of the respective auxiliary terminal or terminal box cover.
● In some cases a terminal strip is installed in the main terminal box for the auxiliary circuit
● The required stripped length on conductors for auxiliary terminals differs according to
Adapting the cable glands
A plate is bolted to the terminal box enclosure via a rectangular cutout through which the
connecting cables enter. The plate is generally delivered with threaded holes and cable glands.
1. Open the auxiliary terminal box and undo the cable entry plate screws. Depending on the
2. For the undrilled version, drill the required number of holes or threads in the required size
3. Mark the cables if necessary for subsequent assignment.
4. Pull the cables through the cable glands and the cable entry plate, and connect the cables.
5. Fit the cable entry plate.
6. Make sure that the seal on the screwed sockets for the cable glands satisfies the degree of
6.6.3
Connecting an external fan motor
1. When working on the external fan, carefully comply with the instructions provided in the
2. Connect the external fan motor in accordance with the terminal diagram provided in the
3. Check:
4. Connect the protective conductor to the protective conductor terminal.
5. Establish the other electrical connections as per the circuit diagram.
6. If the separate fan is supplied with a connector already attached, check whether the pin
7. Complete the work at the external fan terminal box, see "Completing connection work in the
88
connections.
terminal type (6 to 9 mm). When the length is correct, the conductor should reach the stop
in the terminal and at the same time the conductor insulation should reach the contact part
of the terminal.
terminal box version, the cable entry plate is below a steel screening plate.
of the cable gland into the cable entry plate.
protection.
operating instructions for the external fan motor.
external fan terminal box. When doing this, carefully observe the data stamped on the rating
plate.
– The line voltage and line frequency match the details on the rating plate;
– the cross-sections of the designated connecting cables are matched to the rated current
of the motor (with due consideration for the relevant installation directives).
allocation of the connector matches the pin allocation of the socket.
auxiliary terminal box" (Page 90).
SIMOTICS FD 1LP1
Operating Instructions 01/2019
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