Mitsubishi Electric FATEC FR-A800 Manual page 145

8
LIFE OF INVERTER PARTS
Remark
For accurate life measurement of the main circuit capacitor, wait three hours or longer after
turning OFF because the temperature left in the main circuit capacitor affects measurement.
When measuring the main circuit capacitor capacity (E704 (Pr.259) the main circuit capacitor life measurement = "1"),
the DC voltage is applied to the motor for about 1 second at power OFF. Never touch the motor terminal, etc. right after
powering OFF to prevent an electric shock.
(5) Life display of the cooling fan
The cooling fan speed of 50% or less is detected and "FN" is displayed on the operation panel
(FR-DU08). As a warning display, E700 (Pr.255) bit 2 is turned ON and also a warning is output
to the Y90 signal.
Remark
For replacement of each part, contact your local Mitsubishi Electric System & Service Co.,
Ltd.
8.2 Inverter parts life display
140
• When the main circuit capacitor life is measured under the following conditions, "forced
end" (E704 (Pr.259) = "8"), or "measurement error" (E704 (Pr.259) = "9") may occur, or
the status may remain in "measurement start" (E704 (Pr.259) = "1"). To perform
measurement, first eliminate the following conditions. Under the following conditions,
even if "measurement complete" (E704 (Pr.259) = "3") is reached, measurement cannot
be performed correctly.
(a) The FR-HC2, FR-CV, MT-RC, or a sine wave filter is connected.
(b) Terminals R1/L11, S1/L21, or DC power supply is connected to terminals P/+ and N/-.
(c) The power supply is switched ON during measurement.
(d) The motor is not connected to the inverter.
(e) The motor is running (coasting).
(f) The motor capacity is smaller than the inverter capacity by two ranks or more.
(g) The inverter is tripped or a fault occurred while the power was OFF.
(h) The inverter output is shut off with the MRS signal.
(i) The start command is given while measuring.
(j) The applied motor setting is incorrect.
• Operation environment: Surrounding air temperature (annual average of 40°C (free from
• Since repeated inrush currents at power ON will shorten the life of the converter circuit,
frequent starts and stops of the magnetic contactor must be avoided.
WARNING
When the inverter is mounted with two or more cooling fans, "FN" is displayed
with one or more fans.
corrosive gas, flammable gas, oil mist, dust, and dirt)).
Output current (80% of the inverter rating)