SCORPIO 38’ - 45’ - PARTS AND COMPONENTS DESCRIPTION - Electronic box
Version 1.02 May 27, 2022
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2.5.2 INSIDE THE ELECTRONIC BOX
The electronic box has different electronic components and amplifiers to control the crane. In this
chapter we will make a brief description of some of them.
A. Main coil: This is the main transformer. It has 2 inputs of 110v AC and 2 outputs, the yellow cables
of 90v AC to power the amplifiers and the red ones of 30v AC. To power the electronic part and
the Leveling Head. It has a fuse on top of it of 3 Amp. To protect the displays of voltage and
amperage.
B. Voltage selector: This switch needs to be changed depending on the input voltage of the crane.
The position of 110 needs to be set when the voltage input is 110v AC. The position of 220 needs
to be set if the voltage input is 220v AC.
C. Driver for the ARM: This is the driver board for the arm. It amplifies the signals from the SERVO
of the arm to move the telescopic motor. It is powered by DC.
D. Driver for the CWE-Column: This is the driver board for the CWE. The output of this driver board
is sent to the selector for standard-column mode and from there the power goes to each different
motor. It amplifies the signals from the SERVO of the CWE to move or the CWE motor or the
Column motor. It is powered by AC and it has a fuse in the connector of the driver.
E. Security system board: This board controls the safeties of the crane: If the emergency button is
released, the hand command connected and the start button is pressed it will allow the system to
start, other ways the crane CANNOT be started, even if the LED system power is ON. It also has
a 2Amp. Fuse.
F. Electronic components: These components are detailed in the next page.
G. Fuse for the ARM: In case there is a problem with the motor cable, this Fuse will protect the Driver
board. It is a 60Amp. Fuse.
H. Shunt resistor: This component dissipates the current generated by the motor. It has a 10Amp.
Fuse in it.
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