Maeda MC285C-3 - AC Circuit Power Switch; Power Light (White); Trouble Light (Red); Electric Motor Operation

Section 4 – ELECTRIC MOTOR OPERATION Mini-Crawler Crane M A E D A
4-116 1/2019 MC285C-3
AC Circuit Power Switch
The AC Circuit Power Switch is used to switch the
AC power output source on or off for the inverter
unit and inverter cooling fan.
• ON: Power is supplied to the inverter unit and
inverter cooling fan.
• OFF: No power is supplied to the inverter unit
and inverter cooling fan.
NOTICE: The 12V DC Power Switch and AC
Circuit Power Switch can remain on under normal
operating conditions.
Power Light (White)
The Power Light indicates power is being supplied
to the machine from power supply equipment
when the main breaker is in the ON position.
• ON: Machine is receiving power from the power
supply equipment.
• OFF: Machine is not receiving power from the
power supply equipment.
Fig. 4-302
NOTICE: If the Power Light remains off when the
power supply equipment breaker is in the ON
position with power supply assured between the
power supply equipment and machine, check the
power supply on the power supply equipment.
Trouble Light (Red)
NOTICE: If the Trouble Light is illuminated, an
error has occurred in the inverter unit. Contact us
or our sales service agency to request inspection
and repair service.
Fig. 4-303
The Trouble Light is designed to indicate the
presence of an error in the inverter unit.
• ON: An error is detected in the inverter unit.
• OFF: The inverter unit is in normal operation.
ELECTRIC MOTOR
OPERATION
Pre-start Inspection
Pre-start Visible Checks
WARNING!
For more information about pre-start visible
checks, see "Pre-Start Visible Checks" on
page 5-17.
As to the machine conforming to engine and
electric motor specifications, potential fire in
the machine may occur if flammable materials
and oil leaks are present around the hot
sections such as the Inverter unit, power
supply box, and power unit.
Pre-Start Inspection
NOTICE: For more information about pre-start
inspection for electric motor, see "Pre-Start
Inspection" on page 5-19.
Post-Start Inspection
NOTICE: For more information about post-start
inspection for electric motor, see "Post-Start
Inspection" on page 5-25.