YASKAWA GA800 Series, Техническое обслуживание и устранение неисправностей, Страница: 26 / 566

1.3 Maintenance
26 YASKAWA TOEPYAIGA8001B GA800 Drive Maintenance & Troubleshooting
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Monitors that Display the Lifespan of Drive Components
The drive keypad shows percentage values for the replacement parts to help you know when you must replace those
components. Use the monitors in
Table 1.8 to check replacement periods. When the monitor value is 100%, the
component is at the end of its useful life and there is an increased risk of drive malfunction. Yaskawa recommends
that you check the maintenance period regularly to make sure that you get the maximum performance life of the drive.
Table 1.8 Performance Life Monitors
Monitor No. Parts Description
U4-03
Cooling fan
Shows the total operation time of fans as 0 to 99999 hours. After this value is 99999, the drive automatically resets it
to 0.
U4-04
Shows the total fan operation time as a percentage of the specified maintenance period.
U4-05 Electrolytic Capacitor
Shows the total capacitor usage time as a percentage of the specified maintenance period.
U4-06 Soft charge bypass relay Shows the number of times the drive is energized as a percentage of the performance life of the inrush circuit.
U4-07 IGBT
Shows the percentage of the maintenance period for the IGBTs.
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Alarm Outputs for Maintenance Monitors
You can use H2-xx [MFDO Function Selection] to send a message that tells you when a specified component is near
the end of its performance life estimate. Set the applicable value to H2-xx as shown in Table 1.9 for your component.
When the specified component is near the end of its performance life estimate, the MFDO terminals set for H2-xx =
2F [Maintenance Notification] will activate, and the keypad will show an alarm that identifies the component to
replace.
Table 1.9 Maintenance Period Alarms
Display Alarm Name Cause Possible Solutions
MFDO
(Setting Value in
H2-xx)
LT-1
Cooling Fan
Maintenance Time The cooling fan is at 90% of its expected
performance life. Replace the cooling fan, then set o4-03 = 0 [Fan Operation
Time Setting = 0 h] to reset the cooling fan operation time.
2F
LT-2
Capacitor Maintenance
Time The capacitors for the main circuit and control
circuit are at 90% of expected performance life.
Replace the board or the drive.
Contact Yaskawa or your nearest sales representative to
replace the board.
LT-3
SoftChargeBypassRe
lay MainteTime The soft charge bypass relay is at 90% of its
performance life estimate.
Replace the board or the drive.
Contact Yaskawa or your nearest sales representative to
replace the board.
LT-4
IGBT Maintenance
Time (50%) The IGBT is at 50% of its expected performance
life. Check the load, carrier frequency, and output frequency.
TrPC
IGBT Maintenance
Time (90%) The IGBT is at 90% of its expected performance
life. Replace the IGBT or the drive.
10
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Related Parameters
Replace the component, then set o4-03, o4-05, o4-07, and o4-09 [Maintenance Setting] = 0 to reset the Maintenance
Monitor. 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.
Note:
The maintenance period changes for different operating environments.
Table 1.10 Maintenance Setting Parameters
No. Name Function
o4-03 Fan Operation Time Setting Sets the value from which to start the cumulative drive cooling fan operation time in 10-hour units.
Note:
When o4-03 = 30 , the drive will count the operation time for the cooling fan from 300 hours and U4-03
[Cooling Fan Ope Time] will show 300 h .
o4-05
Capacitor Maintenance Setting Sets the value from which to start the count for the main circuit capacitor maintenance period as a percentage.