Rockwell Automation Publication 750-RM100A-EN-P - August 2019 39
Chapter 6
Predictive Maintenance
This section provides instructions for configuring the predictive maintenance
function on PowerFlex® 755T products.
Overview
The overall goal of the predictive maintenance function is to enable regular
maintenance of drives, motors, and machines.
The predictive maintenance function monitors the lifespan of various
components that are used in PowerFlex 755T products. The function uses prior
usage patterns to calculate the component lifespan.
The predictive maintenance function allows you to set the event action and event
levels. The event level changes how much of the total life of a component is
consumed before the predictive maintenance function notifies you to replace the
component.
The Predictive maintenance function can monitor the following components:
• Insulated-gate bipolar transistors (IGBTs)
• Fans and blowers
• DC bus capacitors
• Circuit breaker
•LCL capacitors
•Filters (airflow health)
The predictive maintenance function calculates the remaining life of
components. The calculation is based on the following application factors:
•Temperature
• Air quality
•Airflow
•Voltage
•Runtime
•Cycles
• Drive size
In each of the predictive maintenance functions, there are several parameters that
are used to configure levels, actions, inputs, and outputs. The following sections
describe those functions and parameters. The following descriptions are the same
for all parameters. For example, Event Level functions are the same for all
parameters, in that it determines when the event that it is monitoring occurs
based on percentage of life used.
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