Medium Voltage Application Guide

SOFT STARTERS
Predictive Maintenance Module (PMM)
AuCom’s PMM Predictive Maintenance Module provides an easy-to-use solution for maintenance planning. Using
leading-edge condition monitoring techniques, the PMM can pinpoint equipment failure 2-3 months in advance.
The PMM can be used with a wide range of applications, from pumps and fans to compressors and crushers.
By directly monitoring the voltage and current waveforms at the motor, PMM can quickly and reliably detect changes
in the characteristics, and reports these through a streamlined, easy to understand interface. Because the PMM uses
a model-based fault detection and diagnostic system, it is largely immune to noise, making it ideally suited to erratic
loads.
PMM can detect and identify a very wide range of mechanical, electrical, operational and efficiency problems,
affecting both the load and the motor itself:
Mechanical: loose foundation or components; imbalance; misalignment; mechanical looseness;
deterioration of the couplings, bearings or gearbox
Electrical: loose windings; stator fault; insulation and capacitor breakdown; supply problems; damaged rotor
bars; bad connections; phase imbalance
Operational: abnormal loads, cavitation, filter blocking
Electrical performance: power factor; active/reactive power; Vrms/Irms (3 phase); voltage or current
imbalance; frequency; total harmonic distortion
Page 42 Medium Voltage Application Guide 710-12280-00A