Mitsubishi Electric FR-A800 Series Instruction Manual page 361

• 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
239 11101111 ○
5 101
0 0
○: Parts reaching alarm output level ×: Parts not reaching alarm output level
• Diagnosable parts differ depending on the type of the inverter.
Part
Control circuit capacitor
Main circuit capacitor
Cooling fan
Inrush current limit circuit
Internal air circulation fan
Main circuit capacitor (estimated
residual life)
ABC relay contact
○: Diagnosable, ×: Undiagnosable
• The Life alarm (Y90) signal turns ON when the life alarm output 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, internal air circulation fan life,
estimated residual-life of the main circuit capacitor, ABC1 relay contact life, or ABC2 relay contact life.
• For the terminal used for the Y90 signal, set "90" (positive logic) or "190" (negative logic) in any of Pr.190 to Pr.196 (Output
terminal function selection).
NOTE
• When using an option (FR-A8AY, FR-A8AR, FR-A8NC, FR-A8NCE, or FR-A8NCG), warning signals can be output
individually: the Control circuit capacitor life (Y86) signal, Main circuit capacitor life (Y87) signal, Cooling fan life (Y88) signal,
Inrush current limit circuit life (Y89) signal, Estimated residual-life of main circuit capacitor (Y248) signal, ABC1 relay contact
life (Y249) signal, and ABC2 relay contact life (Y250) signal.
• Changing the terminal assignment using Pr.190 to Pr.196 (Output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
 Life display of the inrush current limit circuit (Pr.256) (Standard models
and IP55 compatible models)
• 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 degree of deterioration for 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.
360
5. PARAMETERS
5.7 (E) Environment setting parameters
Downloaded from ManualsNet.com
bit 7 bit 6 bit 5 bit 4
○ ○ ×
× × × ×
× × × ×
Standard model
○
○
○
○
×
○
○
search engine
bit 3 bit 2 bit 1 bit 0
○ ○ ○ ○
× ○ × ○
× × × ×
Applicable inverter
Separated converter type
○
×
○
×
×
×
○
Remarks
All parts have reached alarm output level for
standard structure models.
Control circuit capacitor and cooling fan have
reached alarm output level.
No parts have reached alarm output level.
IP55 compatible model
○
○
○
○
○
○
○