Mitsubishi Electric FR-E800 Instruction Manual page 253

• Pr.255 Life alarm status display and the Life alarm (Y90) signal can be used to check whether or not the life alarm output
level is reached for the following parts: the control circuit capacitor, main circuit capacitor, cooling fan, inrush current limit
circuit, relay contacts of terminals A, B, and C, inverter module, or control circuit board.
bit 15
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0
bit8 Life of the inverter module
bit9 Corrosion level
• When the parts have reached the life alarm output level, the corresponding bits of Pr.255 turns ON. The ON/OFF state of
the bits can be checked with Pr.255. The following table shows examples.
Pr.255
Decimal Binary
879 1101101111
5 101
0 0
○: Parts reaching alarm output level ×: Parts not reaching alarm output level
• The Life alarm (Y90) signal turns ON when the warning level is reached for either of the following: the control circuit
capacitor life, main circuit capacitor life, cooling fan life, inrush current limit circuit life, the estimated residual-life of the main
circuit capacitor, life of relay contacts of terminals A, B, and C, life of relay contacts of terminals A2, B2, and C2 (only for
the IP67 model), life of the inverter module, or life of the control circuit board.
• For the terminal used for the Y90 signal, set "90" (positive logic) or "190" (negative logic) in any parameter from Pr.190 to
Pr.197 (Output terminal function selection).
NOTE
• Changing the terminal assignment using Pr.190 to Pr.197 (Output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
• For replacement of each part, contact the nearest Mitsubishi FA center.
 Life display of the inrush current limit circuit (Pr.256)
• The life of the inrush current limit circuit (relay, contactor and inrush resistor) is displayed in Pr.256.
• The number of contact (relay, contactor, thyristor) ON times is counted, and it is counted down from 100% (0 time) every
1%/10,000 times. When the counter reaches 10% (900,000 times), bit 3 of Pr.255 is turned ON (set to 1) and the Y90
signal is also output as an alert.
 Life display of the control circuit capacitor (Pr.257)
• The deterioration degree of the control circuit capacitor is displayed in Pr.257.
• In the operating status, the control circuit capacitor life is calculated from the energization time and temperature, and is
counted down from 100%. When the counter goes down from 10%, bit 0 of Pr.255 is turned ON (set to 1) and the Y90
signal is also output as an alert.
252
8. (E) Environment Setting Parameters
8.16 Inverter parts life display
7 0
1
bit0 Control circuit capacitor life
bit1 Main circuit capacitor life
bit2 Cooling fan life
bit3 Inrush current limit circuit life
bit5 Estimated residual-life of main circuit capacitor
bit6 Life of relay contacts of terminals A, B, and C
bit7 Life of relay contacts of terminals A2, B2, and C2 (IP67 model only)
bit 9 bit 8 bit 7
○ ○ ×
× × ×
× × ×
• Pr.255 read
bit 6 bit 5 bit 4 bit 3
○ ○ × ○
× × × ×
× × × ×
• Pr.255 setting read
Bit image is displayed
in decimal
bit 2 bit 1 bit 0
All parts have reached
○ ○ ○ alarm output level for
standard model.
Control circuit capacitor
and cooling fan have
○ × ○
reached alarm output
level.
No parts have reached
× × ×
alarm output level.
Remarks