TECHNICAL SERVICES

If the controls on your equipment need to be serviced or upgraded, or if you need an entirely new system, NOVA can help. Our experienced engineers and technicians can:

Design and manufacture control panels (UL 508A and cUL 508A) (more)
Troubleshoot/service electronic drives and electro-mechanical equipment (more)
Survey and analyze electric power distribution systems (more)
Renovate machine controls (more)
Innovate new design solutions for your applications (more)

And much more.

Panel Design & Construction

With our in-house machining capabilities, we are able to completely fabricate your control panel right in our shop using the Lutze LSC Wiring System. This unique system features:

Space-saving design for a smaller enclosure footprint
The light weight aluminum frame integrates the wire management system and frees up 35-45% of additional space thus reduces the system size.
Flexibility to accommodate a large variety of parts and configurations
Absence of wire duct increases air flow keeping components well ventilated.
Wiring channel U brackets provide vibration isolation.
Easy field modifications for lower maintenance costs
Space and time savings translate directly into overall system cost savings averaging 30%.

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Drive Systems Preventative Maintenance

Besides keeping your drive systems performing at peak levels, regularly scheduled preventative maintenance can detect problem areas and save you costly repairs and downtime. Our comprehensive preventative maintenance inspection can include:

Visual Inspection

Remove dust and debris from components and heatsinks
Inspect wiring for loose connections
Check external blowers and fans for proper operation

Test Motor Control Subsystem

Check overcurrent protection
Inspect and test dynamic breaking resistors
Test insulation resistance of motors

Test Electronic Subsystem

Check diagnostics
Document and verify all drive parameters
Check and calibrate panel meters
Check velocity feedback circuits

Test Power Subsystem

Check each phase voltage
Check control power supplies
Measure phase current

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Electrical Power Surveys

Industrial Automation and Control A NOVA power quality analysis survey can help you detect the source of your intermittent power problems, including:

Current and voltage imbalances
Phase impedances and voltage sags
Harmonics and disturbances

During the survey, data-monitoring devices can record for one hour or up to one week, depending on the samples that need to be taken. Information about current and voltage is gathered simultaneously from all three phases, neutral and ground, and typically includes:

True RMS Voltage
Max. Peak to Peak Voltage
True RMS Current
Max. Peak to Peak Current
Fundamental RMS Voltage
Voltage Angle
Fundamental RMS Current
Current Angle
Fundamental Impedance
Impedance Angle
Voltage Imbalance
Current Imbalance

Total Voltage Harmonics
Total Current Harmonics
True VA
True VARS
True Watts
Distortion
True Power Factor
Fundamental VA
Fundamental Watts
Fundamental VARS
Fundamental Power Factor

Electrical Power Surveys Abnormal events are also captured in the database and saved for later review. Using data extracted from the analysis, our NOVA engineers can then identify specific solutions to clean your facility's power. Distribution systems can be mapped and analyzed with SKM software and show the correlation between the real measured data and the theoretical calculated data.

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Control Systems Renovation and Repair

Thorough Troubleshooting Expertise

To determine the source of your problem, we will:

Distinguish between software and hardware failures
Identify mechanical problems affecting your control system's responses
Analyze PLC code
Analyze CNC code
Adjust set points on drive systems for optimal running conditions
Identify electrical noise/harmonic sources

Control Systems Renovation At NOVA, we have extensive experience in repairing:

AC and DC variable-speed drives, both domestic and foreign
Computerized equipment, both domestic and foreign
PLCs and industrial computers
Servo motion control systems

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