NARGESA MC150B, Инструкция

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MC150B BENDING MACHINE INSTRUCTION BOOK 11
Star figure
(Default)
For voltage 400V
Triangle figure
For voltage 230V
4.4 Instructions for connecting to the power supply
The pipes and section bending machine MC150B, is equipped with a three-phased motor 230V/400V
0.75kW and it’s ready to be connected to a three-phased 400V drive with earthing contact.
In opposition, if you connect the machine to a three-phased 230V drive it’s necessary to make the following
changes in the control panel:
- Change of the main motor coil connections
- Change of the transformer connections
- Adjustment of the intensity range of the engine guard contactor
Change connection of motor bobbins.
To connect the machine to a three-phased 400V drive motor bobbins must be star like connected (default).
On the other hand, to connect the machine to a three-phased 230V drive motor bobbins must be triangular-
ly shaped connected.
The change in the coil connection is performed through the motor terminal box located at the rear of the
machine, changing the configuration of the plates according to the available power outlet. The two possible
configurations are shown below:
Figure 7. Change of engine connections
Before making any changes to the wiring of the motor bobbins or electrical panel, it is essential
to check that the machine is not connected to any power source.
IMPORTANT: This machine must be connected to an electrical outlet with earthing contact.