MaxFlight MT3000 ELECTRIC, Manual

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connector. Four Mitsubishi inverters are mounted inside the panel. Pitch, roll, and lift run on
bigger units; the counterweight runs on a smaller unit. See panel drawings at the end of this
manual for more information about where they are mounted in the Electrical Control Box.
10Base-T networking receptacles are used for the RS-485 communication ports. Hubbell twist
lock connectors are used for the main, pitch motor, roll motor, and lift motor power. All other
connectors are military style connectors.
Motor power connections provide 208-volt 3-phase power to the Pitch, Roll and Lift motors, and
brake power connections provide power to the motor brakes. The counter-weight motor brake is
powered by 110-volt single-phase system the rest are 220. The frequency inverters ensure that the
brakes are not applied during motion.
The computer program knows the position of the unit by reading the encoders on the pitch, roll,
and lift axis. The encoders are electrical devices powered by a 5-volt supply on the motion
control interface card, movement can be measured by sending a light beam through a metal disc
that has 400 holes/slits on it. Each light or dark sends a pulse to the Computer Motion Control
Board, which “reads” the pulses and determines where in the pitch, roll and lift axis the motion
platform is at any given time. The encoders know the position of each axis to within .006”. There
is a safety backup to the encoders and that is software driven. It monitors the Roll and Pitch
platform position. If the computer requests movement and does not get an encoder return signal
it will default and shut down motion to the platform. Also should there be a motion on the
platform greater than 15 degrees, that was not requested by the computer the computer will stop
motion of the platform.
The counterweight is used to balance the cockpit and tail section at their vortex, referred to as the
center weldment. The balance is obtained by powering a drive motor, located on top of the
weldment, which moves the counterweight back and forth on a shaft as required to balance the
machine. When the cockpit is balanced, the unit will rise to its maximum up position.
The emergency stop switch, located in the center of the cockpit, activates the emergency stop
condition, returning the machine to its original horizontal (Home) position. The motion platform
can then be lowered to the stairway by using the raise/lower switch.
The upper and lower sensor switches, which are mounted on the center sections of the A-Frames
directly in line with the bearing blocks, signal the computer when the machine is in the proper
position to begin the game (raised) or load and unload passengers prior to or at the end of the
game sequence (lowered).
The electrical swivels allow current and data signals to flow into the cockpit and associated
devices via a series of rotating rings with brushes that make contact and allow pitch and roll
motion through a range of 360 degrees in either direction.
The pitch input connections consist of cockpit power feed (120VAC), grounding wire, left/right
phono jacks, counterweight motor feed, video feed, emergency stop and a data line to the roll
encoder. These signals are then transferred to the center weldment where the power, phono,
video and emergency stop and canopy sensor are transferred to the roll electrical swivel and on to
the cockpit.
Thus, the unit can be described, from an electrical perspective, as being controlled from the
computer and the electrical panel. RS-485 serial communication allows the Mitsubishi inverters