YASKAWA V1000 Technical Manual page 295

Digital Operator Alarm Display
<1> LT-3
<1> LT-4
<2> TrPC
<1> This alarm message will be output only if the Maintenance Monitor function is assigned to one of the digital outputs (H2-oo = 2F). The alarm
will also trigger a digital output that is programmed for alarm indication (H2-oo = 10).
<2> This alarm message will always be output, even if the Maintenance Monitor function is not assigned to any of the digital outputs (H2-oo =
2F). The alarm will also trigger a digital output that is programmed for alarm indication (H2-oo = 10).
n Related Drive Parameters
Use parameters o4-03, o4-05, o4-07, and o4-09 to reset a Maintenance Monitor to zero after replacing a specific component.
Refer to Parameter List on page 329
NOTICE: If these parameters are not reset after the corresponding parts have been replaced, the Maintenance Monitor function will
continue to count down the performance life from the value that was reached with the old part. If the Maintenance Monitor is not reset,
the drive will not have the correct value of the performance life for the new component.
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
Function
The DC bus charge circuit has reached 90% of its
designated life time.
The IGBTs have reached 50% of their designated life
time.
The IGBTs have reached 90% of their designated life
time.
for details on parameter settings.
7.3 Periodic Maintenance
Corrective Action
Contact a Yaskawa representative or
the nearest Yaskawa sales office on
possible drive replacement.
Check the load, carrier frequency, and
output frequency.
Contact a Yaskawa representative or
the nearest Yaskawa sales office on
possible drive replacement.
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