Condition Monitoring for Predictive Maintenance

For condition monitoring, drive and status data are recorded periodically or continuously in order to optimise the operational safety and efficiency of machines and plants. Condition monitoring can provide vital information for predictivemaintenance. The objective is to maintain machines and plants proactively, reduce downtimes, and increase the efficiency of the entire plant.

Hover over the orange plus emblems to see more information regarding each element of our predictive maintenance technology.

<h2>Advantages for Our Customers</h2>

  • Detection and avoidance of impermissible operating states at an early stage
  • Status-oriented maintenance replaces time-based maintenance
  • Plannable machinery and plant downtimes based on real drive and process data
  • Reduction of service and material costs
  • Longer service life of components and machine
  • Increase in system availability
  • Avoidance of unplanned downtimes
  • Plannable and cost-optimized repair


The Intelligent Drive with Condition Monitoring for Predictive Maintenance

The Industrial Internet of Things (IIoT) focuses on internet usage in industrial processes and procedures. IIoT aims at increasing operational efficiency, reducing costs and speeding up processes. Sensors and sensor data plays a central role in providing the basis for conditions monitoring and predictive maintenance.

  • Condition monitoring solutions for predictive maintenance systems integrated into the frequency inverter
  • System is IIoT/Industry 4.0 READY!
  • Available for decentralised and control cabinet solutions


  • Virtual sensors – the PLC can calculate information such as the optimal oil change time
  • Interface for digital/analog sensors

Communication Interfaces

Threshold values or general status information can be communicated externally (via normal Industrial Ethernet dialects)

Integrated PLC

  • Local pre-processing of data with the integrated PLC
  • Pre-processing of threshold values

Information from condition monitoring can be transferred to predictive maintenance.

Drive-based Approach

  • Sensorless determination of the optimal oil change time based on virtual oil temperature
  • Pre-processing of drive data in the integrated PLC
  • Offering the data to the customer via all common interfaces

  • Gear unit parameters and specific operational parameters make it possible to precisely calculate the oil change time.
  • The NORD solution is based on the fact that the oil temperature is a key factor for oil ageing in gear units.
  • A hardware temperature sensor is not needed because virtual sensors calculate the current oil temperature continuously by way of drive-specific parameters.
  • The existing frequency inverter from NORD is used as an evaluation unit: The algorithm runs in the internal PLC.

  • Integrated PLC available for all NORD frequency inverters and motor starters
  • Runs drive-related functions
  • Integrates drive-related actuators and sensors
  • Parameter access
  • Access to Industrial Ethernet or field bus data
  • Implementation of application-specific functions

S9091 - Condition Monitoring for Predictive Maintenance

S9091 - Condition Monitoring for Predictive Maintenance
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Documentation Details



Control cabinet inverters
The next generation of control cabinet inverters. Compact size, innovative and extremely flexible communication and interface concept, functional expansion with optional modules.
- Power range up to 160kW
- Control cabinet installation
- IP20


NORD frequency inverter

Decentralized frequency inverter
The field distributor for flexible, decentralized installation. Flexible configuration, functions and application. Fast commissioning through plug-in capability, system servicing through integrated maintenance switch and local manual control facility.
- Power range up to 7.5kW
- Field installation
- IP55/IP66


NORDAC Base Variable Frequency Drive - SK 180E

Decentralized frequency inverter
Decentralized drive unit with versatile installation options. Simple commissioning and maintenance through extensive plug-in capability and simple parameter transfer via EEPROM.
- Power range up to 22kW
- Wall or motor mounting
- IP55/IP66


NORDAC Start Motor Starter - SK 135E

Decentralized frequency inverter
The economical decentralized version for simple drive applications . Low installation costs as well as robust design for simple installation outside the control cabinet.
- Power range up to 2.2kW
- Wall or motor mounting
- IP55/IP66 /IP69K

Download the NORDAC App


Dashboard-based visualization for drive monitoring and fault diagnosis, Parameterization with Help function and rapid access to parameters, Oscilloscope function

Learn More


Set parameters for multiple drives with one program interface, PLC editor according to IEC 61131-3, supporting Structured Text (ST), Instruction List (IL) and PLCopen Motion Control library

Download NORDCON