1.1 Features
1-12
Prolonged service life and improved life judgment function
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Designed life: 10 years
The designed lives of the various consumable parts inside the FRENIC-MEGA have been extended to
10 years, which has also extended the equipment maintenance cycles.
Consumable part Designed life
Main circuit capacitor 10 years
Electrolytic capacitor on PCB 10 years
Cooling fan 10 years
Fuse (90 kW or above) 10 years
Life conditions
- Surrounding temperature: 40ºC
- Load factor: 100% (HD mode) or 80% (MD/LD mode)
* The designed lives are the calculated values and not the guaranteed ones.
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Full support of life warnings
Lives can be easily checked on the keypad or the PC loader,
substantially enhancing the maintainability of the equipment!!
Table 1.1-2
Item Purpose
Cumulative run time (Unit: h)
Displays the total run time of the inverter.
Supply time of the main power supply is indicated in the
unit of 1 hour.
Cumulative motor run time (Unit: 10 hours)
Displays the total run time of the motor.
Used to judge the service life of machinery (load).
Even when the motor is driven by commercial power, it
is also possible to count the cumulative motor run time
using digital input signals.
Number of startups
Displays the number of motor startups.
This count can be used as a guide for replacement
timing of machinery parts (such as timing belts) that
undergo load in ordinary operation.
Equipment maintenance warning
Cumulative motor run time (Unit: 10 hours)
Number of startups
Early warning signals can be output when preset values
are reached.
Makes it possible to manage the total run time of the
motor and the number of startups. Such data is usable
for preparing the maintenance schedule.
Display of inverter lifetime alarm
Displays the following: Capacitance of the main circuit
capacitors; Total run time of the cooling fan (with
ON/OFF compensation); Total run time of the electrolytic
capacitor on the printed circuit board
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