YASKAWA LA500, Technical Manual

Page: 209 / 376

Periodic
Inspection
and
Maintenance
8
8.3 Maintenance
YASKAWA SIEPYEULA5001C LA500 Technical Manual 209
◆
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 8.9 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 turn ON, and the keypad will show an alarm that identifies the component
to replace.
Table 8.9 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
◆
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 8.10 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 has been set, 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.
o4-07 Softcharge Relay Maintenance Set Sets as a percentage the value from which to start the count for the soft charge bypass relay maintenance
time.
o4-09 IGBT Maintenance Setting Sets the value from which to start the count for the IGBT maintenance period as a percentage.