YASKAWA L1000V Technical Manual page 196

7.3 Periodic Maintenance
Alarm Display
LED Operator LCD Operator
LT-4
<1>
TrPC
<2>
<1> This alarm message will be output only if the Maintenance Monitor function is assigned to one of the digital outputs (H2-
will also trigger a digital output that is programmed for alarm indication (H2-
<2> This alarm message will always be output, even if the Maintenance Monitor function is not assigned to any of the digital outputs (H2-
2F). The alarm will also trigger a digital output that is programmed for alarm indication (H2-
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 Table on page 224
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.
196
Function
The IGBTs have reached 50% of their designated lifetime.
The IGBTs have reached 90% of their designated lifetime.
for details on parameter settings.
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Corrective Action
Check the load, carrier frequency, and output frequency.
Replace the drive.
= 10).
= 10).
YASKAWA AC Drive L1000V Technical Manual
= 2F). The alarm
=