Control Concepts provides repair and maintenance services for VACON drives and related motor control equipment. VACON drives are used across industrial, energy, water, marine, and building automation applications where reliable motor control and efficiency are important. Our technicians diagnose faults, repair failed components, replace damaged parts, and help restore reliable operation.
Control Concepts provides 24/7 repair and maintenance. Contact us today.
Who is VACON?
VACON is a drive brand within Danfoss. Danfoss states that Vacon became part of the Danfoss Group effective December 1, 2014, and VACON products continue as part of Danfoss’s drive portfolio.
What Do VACON Products Do?
VACON products are designed for variable speed motor control, process performance, and energy efficiency in demanding applications. Common VACON drive categories include:
Industrial AC Drives – Products such as the VACON® 100 Industrial and VACON® NXP family are used for robust motor control in industrial environments.
Air-Cooled and Liquid-Cooled Drives – VACON drive platforms include air-cooled and liquid-cooled configurations for different performance and installation requirements.
Decentralized Drives – VACON decentralized drive products such as the 20 X and 100 X are designed to be mounted closer to the motor in suitable applications.
Control Concepts has experience diagnosing, repairing, and supporting VACON drive products to help extend equipment life and reduce downtime.
VACON Products We Service
Control Concepts repairs and maintains:
If your VACON product is not listed here, contact Control Concepts to review your specific service needs. These listed models align with Danfoss VACON product references and legacy VACON lines.
Industries Using VACON Products
- Building Automation
- Cranes and Hoists
- Marine and Offshore
- Mining and Metals
- Water and Wastewater
- Elevators and Escalators
- Pulp and Paper
- Food and beverage
- Oil and Gas
- Renewable Energy Applications
Danfoss describes VACON drives as serving broad industrial and building applications, including pumps, conveyors, compressors, and other motor-driven systems.
VACON Repair Services
Control Concepts offers a full range of services for VACON drive systems, including:
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Diagnostics & Troubleshooting – Identify faults affecting drive operation, motor output, or control response
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Component-Level Repair & Replacement – Restore or replace damaged boards, fans, terminals, and power components
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Preventive Maintenance – Inspect and service drives to reduce unexpected failures
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On-Site Repairs & Support – Perform troubleshooting and system restoration at your facility when needed
Common Issues with VACON Drives
We regularly service issues such as:
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Drive does not run the motor
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Drive keeps blowing fuses or tripping breakers
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Loose or damaged electrical connections
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Cooling fan failures
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Software or programming faults
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Circuit board failures
Overcurrent faults are a common cause of drive shutdowns, which is why troubleshooting should include the drive, motor, and connected operating conditions.
The Control Concepts Repair Process
Inspection
We inspect the drive and terminals for loose, worn, or heat-damaged connections caused by heat cycles, vibration, or improper torque.
Electrical Testing
We perform diode and IGBT testing on the input and output power sections before applying power to help prevent further damage from a short.
Controlled Power-Up
The unit is powered up gradually while monitoring amp readings and output frequency until rated input voltage is reached.
Functional Testing
When appropriate, we back up existing programs and run the drive through basic jog and motor tests to verify output performance, motor rotation, and overall operation.
Final Verification
Each drive is fully tested to confirm proper operation before returning it to service.
Preventive Maintenance Recommendations
To reduce failures and extend equipment life, we recommend:
Keeping drives free of dust and debris
Dust buildup can trap heat and affect cooling performance.
Ensuring proper ventilation
Adequate airflow helps prevent overheating and supports reliable drive operation.
Keeping drives dry and protected from moisture
Moisture can damage internal electrical components and lead to corrosion or shorts.
Inspecting terminals and connections regularly
Routine checks can help identify loose or heat-damaged connections before they cause downtime.
Scheduling periodic testing and inspection
Regular inspection of power sections, cooling components, and overall operating condition can help catch problems early and reduce unexpected failures.
Preventive maintenance plays a key role in reducing unplanned downtime and extending equipment life.
24/7 Service and Support
Control Concepts provides 24/7 VACON service and support. If your drive system is down, faulting, or showing signs of failure, our team can help diagnose the issue, perform repairs, and support getting your equipment back into operation as quickly as possible.
Need VACON drive repair? Contact Control Concepts. We’re available 24/7 to help minimize downtime and keep your systems operating reliably.
