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Display Of The Life Of The Inverter Parts (pr. 255 To Pr. 259) - Mitsubishi Electric FR-E700 Instruction Manual

Frequency inverter.
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Useful functions
6.21.2

Display of the life of the inverter parts (Pr. 255 to Pr. 259)

Degrees of deterioration of main circuit capacitor, control circuit capacitor, cooling fan and in-
rush current limit circuit and can be diagnosed by monitor.
When any part has approached the end of its life, an alarm can be output by self diagnosis to pre-
vent a fault. (Use the life check of this function as a guideline since the life except the main circuit
capacitor is calculated theoretically.) For the life check of the main circuit capacitor, the alarm
signal (Y90) will not be output if a measuring method shown on page 6-298 is not performed.
Pr. No. Name
Life alarm status
255
display
Inrush current
256
limit circuit life display
Control circuit
257
capacitor life display
Main circuit capacitor
258
life display
Main circuit capacitor
259
life measuring
The above parameters can be set when Pr. 160 "User group read selection" = 0.
Life alarm display and signal output (Y90 signal, Pr. 255)
Whether any of the control circuit capacitor, main circuit capacitor, cooling fan and inrush current
limit circuit has reached the life alarm output level or not can be checked by Pr. 255 "Life alarm
status display" and life alarm signal (Y90).
Read the setting of parameter 255.
Fig. 6-151: Read parameter 255
When the life alarm output level is reached, the bits are set as follows.
Fig. 6-152: Bits of parameter 255
6 - 296
Initial
Setting
Description
Value
Range
Display whether the control circuit
capacitor, main circuit capacitor, cool-
ing fan, and each parts of the inrush
0
(0–15)
current limit circuit has reached the
life alarm output level or not.
Reading only
Display the deterioration degree of the
100%
(0–100%)
inrush current limit circuit. Reading
only
Display the deterioration degree of the
100%
(0–100%)
control circuit capacitor. Reading only
Display the deterioration degree of the
main circuit capacitor. Reading only
100%
(0–100%)
The value measured by Pr. 259 is dis-
played.
Setting "1" and switching the power
supply off starts the measurement of
the main circuit capacitor life (refer to
the following pages).
0/1
0
(2/3/8/9)
When the Pr. 259 value is "3" after
powering on again, the measuring is
completed. Read the deterioration
degree in Pr. 258.
Call up Pr. 255
Inrush current limit circuit life
Read the setting of Pr. 255
Control circuit capacitor life
Main circuit capacitor life
Cooling fan life
Parameter
Parameters referred to
190–192
Output terminal
function selection
The bit image is displayed
in decimal.
Refer to
Section
6.10.5
I001262E
I001261E

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