YASKAWA GA700 Technical Manual page 340

7.3 Maintenance
Monitor No.
U4-06 Soft charge bypass relay
U4-07
◆
Alarm Outputs for Maintenance Monitors
A message can be set up to inform the user when a specific component is approaching the end of its expected
performance life using H2-xx [MFDO Function Select] . Set the appropriate setting value to H2-xx as shown in
the following table.
When a specific component is approaching the end of its expected performance life, the multi-function digital
output terminals set for H2-xx = 2F [Maintenance Period] will close, and the keypad will display an alarm
indicating the part that must be replaced.
Display Alarm Name
Cooling Fan
LT-1 Maintenance
Time
Capacitor
LT-2 Maintenance
Time
SoftChargeBy
LT-3 passRelay
MainteTime
IGBT
LT-4 Maintenance
Time (50%)
IGBT
TrPC Maintenance
Time (90 %)
◆
Related Parameters
Set o4-03, o4-05, o4-07, and o4-09 [Maintenance Setting] to 0. Reset the Maintenance Monitor after replacing the
specific component. 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 differs depending on the environment in which the drive is used.
Parameter
Number
o4-03 CoolingFan OperationTime
Setting
o4-05
Capacitor Maintenance Setting
340
Part
Displays the number of times the drive is powered up as a percentage of the
performance life of the inrush circuit.
IGBT Displays the percentage of the maintenance period reached by the IGBTs.
Table 7.9 Maintenance Period Alarms
Cause
The cooling fan has reached 90% of
its expected performance life.
The main circuit and control circuit
capacitors has reached 90% of their
expected performance life.
The use of the soft charge bypass
relay has reached 90% of its expected
performance life.
IGBTs have reached 50% of their
expected performance life.
IGBTs have reached 90% of their
expected performance life.
Table 7.10 Maintenance Setting Parameters
Name
Sets the value from which to start the cumulative drive cooling fan operation time in
10-hour units.
Note:
If o4-03 = 30 has been set, the operation time for the cooling fan setting will be
counted from 300 hours, and 300H will be displayed on the U4-03 [Cooling Fan
Ope Time] .
Sets the value from which to start the count for the main circuit capacitor
maintenance period as a percentage.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Description
Solution
After replacing a cooling fan, set o4-03 = 0
[CoolingFan OperationTime Setting = 0] to
reset the cooling fan operation time.
Replace the board or the entire drive.
Contact Yaskawa or your nearest sales
representative on possible board replacement.
Replace the board or the entire drive.
Contact Yaskawa or your nearest sales
representative on possible board replacement.
Check the load, carrier frequency, and output
frequency.
Replace the IGBT or the entire drive.
Function
Multi-
function
digital
output
(Setting
Value in H2-
xx)
2F
10