42 Rockwell Automation Publication 750-RM100A-EN-P - August 2019
Chapter 6 Predictive Maintenance
Predictive Maintenance
Function Details
This section describes the details of the predictive maintenance functions of
PowerFlex 755T products.
IGBT Modules
Output Parameters (Port 12 and 14)
Remaining Lifetime and Elapsed Lifetime: The calculation uses Event Level and
the record of operating conditions from the past 30 days. These conditions
include component data, temperature, load (current), and runtime. Positive
values indicate the estimated number of hours until the event occurs. These
values count down.
Negative values indicate the number of hours that have passed since the event
occured. The precision of this parameter is limited to the eight most significant
digits. The three least significant digits are rounded. For example, an internal
value of 18760230188 is represented in this parameter as 18760230000.
Table 9 - Event Level and Event Action Parameters
Parameter No. Parameter Name Units Definition
0:566 IGBT Event Level % Enter a value to determine when a Predictive
Maintenance IGBT event in the power modules takes
place. The event notifies you to replace the power
module.
0:567 IGBT Event Actn 0 = ‘Ignore’
1 = ‘Alarm’
Select the action taken when the Predictive Maintenance
IGBT event in the power modules takes place.
Table 10 - Output Parameters
Units Definition Parameters
Hours Displays the remaining life for the IGBTs in the line side power module.
IGBTs in power module L0
IGBTs in power module L1
…
IGBTs in power module L9
14:140 [L0IGBT RemainLif]
14:240 [L1IGBT RemainLif]
…
14:1040 [L9IGBT RemainLif]
Hours Displays the unprocessed elapsed life of the IGBTs in the line side power module.
IGBTs in power module L0
IGBTs in power module L1
…
IGBTs in power module L9
14:139 [L0IGBT ElpsdLife]
14:239 [L1IGBT ElpsdLife]
…
14:1039 [L9IGBT ElpsdLife]
Cycles Displays the unprocessed elapsed life of the IGBTs in the motor side power module.
IGBTs in power module M0
IGBTs in power module M1
…
IGBTs in power module M9
12:139 [M0IGBT ElpsdLife]
12:239 [M1IGBT ElpsdLife]
…
12:1039 [M9IGBT ElpsdLife]
To Next Page
Loading...
Need help?
General
