Rockwell Automation Allen-Bradley PowerFlex 750 Series Reference Manual

44 Rockwell Automation Publication 750-RM100A-EN-P - August 2019
Chapter 6 Predictive Maintenance
DC Bus Capacitors
To help support planned maintenance schedules, predictive parameters issue an
alarm when it is time to replace bus capacitors.
Airflow Health
The goal of the predictive maintenance function is to be able to assess the health
of the airflow system with the ability to detect abnormal conditions that are
based on deviations from an expected temperature rise.
The following warnings are generated by comparing the actual temperature rise
with the upper and lower expected temperature rise limits.
• High Temperature Rise warning
• Low Temperature Rise warning
Several conditions can cause a high temperature rise warning, including:
•Blocked air filter
• Mismatch of air filter and IP class of drive
• Internal recirculation caused by damaged or missing baffles or gaskets
• Debris in the IGBT airflow path
• Excessive pre-heating of air
Table 14 - Input Parameters
Units Definition Motor Side Power Module Fans Line Side Power Module Fans LCL Filter Module Fans
°C Temperature Module M0 = 12:131 [M0 Meas Amb Tmp]
Module M1 = 12:231 [M1 Meas Amb Tmp]
…
Module M9 = 12:1031 [M9 Meas Amb Tmp]
Module L0 = 14:131 [L0 Meas Amb Tmp]
Module L1 = 14:231 [L1 Meas Amb Tmp]
…
Module L9 = 14:1031 [L9 Meas Amb Tmp]
Module LCL0 = 14:1241 [F0 Meas Amb Tmp]
Module LCL1 = 14:1441 [F2 Meas Amb Tmp]
…
Module LCL5 = 14:2141 [F9 Meas Amb Tmp]
Table 15 - Event Level and Event Action Parameters
Units Definition Heatsink Fans
% Event Level 0:570 [Bus Cap EventLvl]
1 or 0 Event Action 0:571 [BusCap EventActn]
Table 16 - Output Parameters
Units Definition Motor Side Power Module Line Side Power Module
Hours Remaining
Life
Module M0 = 12:143 [M0BusCapRmngLife]
Module M1 = 12:243 [M1BusCapRmngLife]
…
Module M9 = 12:1043 [M9BusCapRmngLife]
Module L0 = 14:143 [L0BusCapRmngLife]
Module L1 = 14:243 [L1BusCapRmngLife]
…
Module L9 = 14:1043 [L9BusCapRmngLife]
Hours Elapsed Life Module M0 = 12:142 [M0BusCapElpsdLif]
Module M1 = 12:242 [M1BusCapRmngLife]
…
Module M9 = 12:1042 [M9BusCapRmngLife]
Module L0 = 14:142 [L0BusCapElpsdLif]
Module L1 = 14:242 [L1BusCapElpsdLif]
…
Module L9 = 14:1042 [L9BusCapElpsdLif]

Rockwell Automation Allen-Bradley PowerFlex 750 Series Specifications

General

Brand	Rockwell Automation
Model	Allen-Bradley PowerFlex 750 Series
Category	DC Drives
Language	English