Robotics and Automation

Solve nuisance stoppages of your robotics and automation lines

Voltage sags, momentary loss of power and transients can all cause robotic lines to malfunction and damage your electronic equipment.

Challenges our Customers Experience before engaging Omniverter

Automated warehouse reclaimers use variable frequency drives to control the speed of each robotic reclaimer. The PLC controls and VFD electronics are sensitive to electrical power quality anomalies in the network.    

These are some of the typical issues:

  • Rectifier failure of VFD’s.
  • Time delays due to resetting during malfunction of equipment controls.
  • Nuisance stopping of electronic equipment.
  • Electrical breaker tripping and unplanned stoppages.
  • Scrapping of material and delay in cleanup time.  
  • Premature failure of electronic equipment.
  • Sensor data malfunction.

Common Power Quality Issues Causing these Problems

Voltage Sag/Dips

Voltage sags are the primary cause of unplanned production stoppages in industry. Causes include electrical network faults due to weather, animals across terminals, traffic accidents, load switching upstream, startup of large loads or transformer energization.

Voltage Transients

A sudden change from the nominal voltage or current may be caused by faults in the network, switching of large loads, load shedding, or switching of capacitor banks upstream in the utility network. Voltage surges also occur but may be less severe.

Momentary Power Interruptions

Momentary power loss is complete loss of voltage on one or more phase conductors between 0.5 cycles and 3 seconds.  The most common forms of power failure are due to utility protection systems, e.g. recloser operations, switching, breaker tripping and equipment failures.

Current & Voltage Harmonic Distortion

The use of non-linear loads is the main cause of harmonic distortion. The injection of harmonic currents results in voltage distortion which may cause electronic equipment failure, increased heat in drives and transformers, unwanted tripping, malfunction of sensitive equipment and controls and failure of imaging and scanning equipment.

Possible Solutions to your Power Quality Problems

The Omniverter approach is to understand your particular issue via data analysis prior to offering a product solution. The following solutions were used individually or in combination in various robotic and automated lines:

Benefits from Solving these Power Quality Issues

Benefits derived from Omniverter solutions:

  • Improved power redundancy and production throughput.
  • Improved reliability of the electronic equipment.
  • Reduced rectifier failure of VFD’s.
  • Reduced time delays due to resetting during malfunction of equipment controls.
  • Reduced nuisance stopping of electronic equipment.
  • Reduced electrical breaker tripping and unplanned stoppages.
  • Minimize scrapping of material and delay in cleanup time.  
  • Improvd equipment lifecycle and payback period.
  • Minimize the effect of incorrect reading and malfunction of sensor and imaging equipment.

Technical Details

    Accurate data requires the use of dedicated power quality analyzers. Assessment of the data allows us to identify specific problems and only then do we offer a solution.

Summary of the Power Quality Issues (Based on IEEE 1159:2019)
AVC Technical Paper
AVCRTS Technical Paper
Solar & Wind Technical Paper

Most Frequently Asked Question

What options are available to protect my robotic lines from stoppages?

Robotic and automation controls is highly sensitive to voltage regulation and sag phenomena.

The Active voltage conditioner (AVC) is an inverter-based system that protects sensitive industrial and commercial loads from voltage disturbances. It provides fast, accurate voltage sag correction plus continuous voltage regulation and load voltage compensation. The AVC do not use any additional storage to correct sags.

The AVCRTS is an enhanced version of the Active Voltage Conditioner. It uses energy storage to allow the system to ride through momentary outages. The AVCRTS has a large overload capacity and allow for dynamic loads and can operate in a high harmonic environment. Most commercial UPS technologies are not designed for dynamic load applications.

Talk to us about your Power Quality issues.

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