Lenze DISCO−Variable speed drive - Manual (Page 21)

Electrical installation
Electrical adjusting device
5
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21 BA 11.5032−EN 3.0
5 Electrical installation
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Danger!
Electrical connections must only be carried out by skilled personnel!
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Danger!
Always earth the drive!
If it is not possible to earth it via attached items (e.g. the motor) then the
gearbox must be earthed!
5.1 Connection of main motor
To connect the motor correctly, you must follow:
ƒ the notes in the terminal box of the motor
ƒ the notes in the operating instructions of the motor
ƒ the technical data on the motor nameplate.
5.2 Electrical adjusting device
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Stop!
The DISCO must only be changed to a fasterspeed while it is running!
Otherwise, the DISCO could be damaged!
Changing to a slowerspeed is allowed while the DISCO is standing still.
1. Connect the electrical adjustment device as shown in the circuit diagram (Fig. 2).
Ensure the right polarity of the adjustment motor!
2. It is vital to carry out a functional check in order to avoid damages to the DISCO.
– Check the positions of the adjustment motor and the limit−switch box, see page 6
Position of system blocks".
5.2.1 Operational check
Adjustment motor in position 5 / limit−switch box in position 3
1. Switch on the DISCO.
2. Increase the speed: counter−clockwise rotation of the actuator in the limit−switch
housing.
3. While the speed is increased activate the limit−switch S4 with an insulated
screwdriver.