NARGESA 2020-240, Instruction Book, Page: 15 / 54

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SECTION BENDING MACHINE MC650
Adjust the range of intensities of the motor guard contactors:
Depending on the power voltage, the working intensity also varies, and it is therefore necessary to also
modify the working range of the motor protection devices. The motor guard contactors are secured to the
electrical panel as shown in section
A3. Electrical Box
The motor guard contactor have a structure like the ones shown in the diagram below and allow a rapid
adjustment through the regulator located at their front.
The right - hand contactor is responsible for protecting the main motor:
The regulator indication arrow must be around “5 A ” for 230V three - phase connection. In the case of a 400V
three - phase connection, this must be around “2.6 A ”.
The left - hand contactor is responsible for protecting the hydraulic motor:
The regulator indication arrow must be around “3.5 A ” for 230V three - phase connection. In the case of a
400V three - phase connection, this must be around “2 A ” .
*If the motor guard contactor cannot assume the intensity range required, this must be replaced with one
with a greater range.
Figure 9. Intensity range adjustment
We recommend contacting the Technical Service Department of NARGESA S.L.
if you wish to change the operation voltage of the machine in order to be guided and assisted
through the procedure.