Apc SYMMETRA 990 User Manual download pdf (Page 27)

Maintenance: Predictive Maintenance Screens

Symmetra MW with External Bypass Static Switch Operation Manual - 990-1377D-001 23

Inverter Fans screen

The Inverter Fans screen displays the actual status and Expected Remaining Lifetime (ERL) of the

Inverter Fans. You can sort the data by pressing any of the column labels.

• Stress Status: Shows the actual status of the

Inverter Fans. The possible values are:

– Normal (displayed in green)

– Stressed (displayed in yellow)

– Major Stress (displayed in red)

• ERL (months): Predicts the expected

remaining lifetime of the particular

component.

Main Static Switch Fans screen

The Main Static Switch Fans screen displays the actual status and Expected Remaining Lifetime (ERL)

of the Main Static Switch Fans. You can sort the data by pressing any of the column labels.

• Stress Status: Shows the actual status of the

Main Static Switch Fans. The possible values

are:

– Normal (displayed in green)

– Stressed (displayed in yellow)

– Major Stress (displayed in red)

• ERL (months): Predicts the expected

remaining lifetime of the particular

component.

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Apc SYMMETRA 990 User Manual Page 27