7-8-14
Lifetime Alarm (LIFE)
For models with a main circuit capacitor, cooling fan, and inverter capacity of 18.5 kW or more, if any
of the capacitors including electrolytic capacitors exceeds the life judgment standard, the LIFE termi-
nal (30: Lifetime alarm) is turned ON. In addition, the lifetime alarm (alarm code: LiF) can be output as
a minor alarm. (For details, refer to 7-8-26 Light Alarm Selection on page
7-108.)
Parameter
No.
Function name Data Default data Unit
E20, E21, E27
Output Terminal [DO1] Function
Selection, Output Terminal
[DO2] Function Selection, Out-
put Terminal [ROA, ROB] Func-
tion Selection
30: LIFE (Lifetime alarm) - -
Detection method
Individual out-
put terminal
*1
Monitor No.
(only for ST)
Remarks
Main circuit ca-
pacitor
Measure the discharge time of the
main circuit capacitor when the
main power supply is shut of
f and
calculate the capacity of the main
circuit capacitor.
It is judged that the end of life has
been reached when capacity has
reached 85% of the factory default
capacitor capacity or the main cir-
cuit capacitor capacity (pre-meas-
ured at startup) in a user normal
operation state.
W
AC terminal
(240: WAC)
Monitor No.
5_05 (Parame-
ter No. W75)
Adjustment is
possible
(For details, re-
fer to 7-8-10 Ca-
pacitor Life
Warning Signal
(WAC) on page
7-96.)
Can be disabled
by Protection/
Maintenance
Function Mode
Selection (H98).
The time during which voltage is
applied to the main circuit capacitor
(the time during which the main
power supply is ON) is counted. Al-
so, the time is corrected by meas-
uring the capacity of the main cir-
cuit capacitor. When the operation
time exceeds 87,000 hours (10
years)
*2
, it is judged that the end of
life has reached.
Elapsed time
Monitor No.
5_26 (Parame-
ter No. M76)
Remaining time
Monitor No.
5_27 (Parame-
ter No. M77)
Can be reset by
Service Life of
Main Circuit Ca-
pacitor Remain-
ing T
ime (H77).
Electrolytic ca-
pacitor
The time during which voltage is
applied to the electrolytic capacitor
is counted. Also, the elapsed time
is corrected by the ambient temper-
ature. When the operation time ex-
ceeds 87,000 hours (10 years), it is
judged that the end of life has
reached.
-
Monitor No.
5_06 (Parame-
ter No. W67)
Can be reset by
Cumulative Run
Time of Electro-
lytic capacitor
(H48).
7 Other Functions
7-100
M1 Series Standard Type User's Manual (I669)
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