Inverter Parts Life Display - Mitsubishi Electric FR-A820-00046 Instruction Manual

(E) Environment setting parameters
5.7.18

Inverter parts life display

The degree of deterioration of the control circuit capacitor, main circuit capacitor, cooling fan, and in-
rush current limit circuit can be diagnosed on the monitor.
When a part approaches the end of its life, an alarm can be output by self diagnosis to prevent a fault.
(Note that the life diagnosis of this function should be used as a guideline only, because with the ex-
ception of the main circuit capacitor, the life values are theoretical calculations.)
Pr.
255
E700
256
E701
257
E702
258
E703
259
E704
The setting range (reading only) for separated converter types is "0, 1, 4 or 5". The setting range
(reading only) for IP55 compatible modes is "0 to 31".
The setting is available only for standard models and IP55 compatible models.
Life alarm display and signal output (Y90 signal, Pr. 255)
NOTE In the life diagnosis of the main circuit capacitor, the alarm signal (Y90) is not output unless meas-
urement by turning OFF the power supply is performed.
● Whether or not the parts of the control circuit capacitor, main circuit capacitor, cooling fan, inrush
current limit circuit, or internal air circulation fans have reached the life alarm output level can be
checked with Pr. 255 "Life alarm status display" and the life alarm signal (Y90). (Internal air
circulation fans are equipped with IP55 compatible models.)
bit 15
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
Fig. 5-78:
5 - 222
Name
Life alarm status display
Inrush current limit circuit life
display
Control circuit capacitor life
display
Main circuit capacitor life display
Main circuit capacitor life
measuring
7 0
bit0 Control circuit capacitor life
bit1 Main circuit capacitor life
(Standard models and IP55 compatible models only)
bit2 Cooling fan life
bit3 Inrush current limit circuit life
(Standard models and IP55 compatible models only)
bit4 Life of internal air circulation fans (IP55 compatible models only)
Bits of parameter 255
Initial Setting
Description
value range
Displays whether or not the parts of the
control circuit capacitor, main circuit
0 capacitor, cooling fan, and inrush current
(0 to 15)
limit circuit have reached the life alarm
output level. Read-only.
Displays the deterioration degree of the
100% (0 to 100%)
inrush current limit circuit. Read-only.
Displays the deterioration degree of the
100% (0 to 100%)
control circuit capacitor. Read-only.
Displays the deterioration degree of the
100% (0 to 100%) main circuit capacitor. Read-only.
The value measured by Pr. 259 is displayed.
Setting "1" and turning the power supply
OFF starts the measurement of the main
circuit capacitor life.
0, 1
0 If the setting value of Pr. 259 becomes "3"
(2, 3, 8, 9)
after turning the power supply ON again, it
means that the measurement is completed.
The deterioration degree is read to Pr. 258.
• Pr. 255 read
Parameters
• Pr. 255 setting read
Bit image is displayed
in decimal
I002550E