Yaskawa AC Drive P1000 Bypass Technical Manual User Manual
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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
<1>
),
the terminal will close when the cooling fan, DC bus capacitors, or DC bus pre-charge relay reach 90% of the expected
performance life, or when the IGBTs have reached 50% of their expected performance life. Additionally the HOA keypad
will display an alarm like shown in
to indicate the specific components that may need maintenance.
Details on this function can be found in the standard P1000 Technical Manual (SIEPYAIP1U01) at www.yaskawa.com.
Table 7.5 Maintenance Alarms
HOA Keypad Alarm Display
Function
Corrective Action
LT-1
The cooling fans have reached 90% of their designated
life time.
Replace the cooling fan.
LT-2
The DC bus capacitors have reached 90% of their
designated life time.
Contact a Yaskawa representative or the
nearest Yaskawa sales office on
possible drive replacement.
LT-3
The DC bus charge circuit has reached 90% of its
designated life time.
Contact a Yaskawa representative or the
nearest Yaskawa sales office on
possible drive replacement.
7.3 Periodic Maintenance
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YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual