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2.3 Periodic Maintenance
n
Alarm Outputs for Maintenance Monitors
An output can be set up to inform the user when a specific components has neared its expected performance life.
When one of multi-function digital output terminals has been assigned the maintenance monitor function (H2-oo = 2F), the
terminal will close when the cooling fan, DC bus capacitors, or DC bus pre-charge relay reach 90% of expected performance
life. Additionally the digital operator will display an alarm like shown in
may need maintenance.
Display
<1>
The cooling fans have reached 90% of their designated life time. Replace the cooling fan.
LT-1
The DC bus capacitors have reached 90% of their designated life
<1>
LT-2
time.
<1>
The pre-charge circuit has reached 90% of its designated life time.
LT-3
<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).
n
Related Drive Parameters
Use parameters o4-03, o4-05, and o4-07, to reset a Maintenance Monitor to zero after replacing a specific component.
to Parameter List on page 191
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.
172
Table 2.5 Maintenance Alarms
Function
for details on parameter settings.
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
Table 2.5
to indicate the specific components that
Corrective Action
Contact a Yaskawa representative or the
nearest Yaskawa sales office on possible drive
replacement.
Contact a Yaskawa representative or the
nearest Yaskawa sales office on possible drive
replacement.
Refer
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