Control Concepts provides repair and maintenance services for Hitachi drives, PLCs, and industrial automation equipment. Whether you need diagnostics, repair, or preventive maintenance, our technicians help ensure reliable operation, improved efficiency, and reduced downtime.
Who Is Hitachi?
Hitachi is a global supplier of industrial automation, control systems, and variable speed drives. Hitachi is widely recognized for its AC variable frequency drives, PLC products, and industrial control systems used in demanding industrial environments.
Hitachi products are designed to deliver reliable motor control, system flexibility, and long-term performance across a wide range of industries.
Hitachi Drives and PLCs We Service
We service and support a wide range of Hitachi industrial products, including:
Control Concepts specializes in servicing Hitachi equipment to help extend system life and maintain optimal performance.
If you don’t see your specific Hitachi product listed here, contact us to discuss service options.
What Are Hitachi Variable Frequency Drives?
Hitachi AC variable frequency drives, including low- and medium-voltage models, are commonly used in industrial manufacturing and automation systems. These drives are designed to control different types of motors while delivering precise speed and torque control.
Hitachi VFDs are used in electro-mechanical drive systems to provide adjustable motor speed and torque across a wide range of operating conditions, helping improve efficiency and process control.
Industries Using Hitachi Drives
Hitachi drives and PLC systems are used in many industries, including:
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Power generation
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Oil and gas
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Mining
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Water and wastewater
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Plastics
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Rubber and manufacturing
These systems are well-suited for applications requiring consistent performance, reliability, and integration with automation platforms.
Hitachi PLC Systems
Hitachi PLCs are highly flexible and compatible with a wide range of industrial automation and facility control systems. They are commonly used for:
Control Concepts services Hitachi PLC hardware as part of complete system diagnostics and repair.
Common Hitachi Drive and PLC Issues
Some common Hitachi drive and PLC issues we address include:
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Software or programming problems
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Non-functional cooling fans
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Loose or damaged connections
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Blown fuses or tripped breakers
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Drive does not run the motor
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Circuit board failures
Circuit board failure is one of the least common causes of drive failure. The most frequent fault that shuts down a drive is an over-current condition, which can have 20–30 possible causes. Our troubleshooting process starts with motor dynamics and system conditions before moving deeper into the drive.
Most drive failures can be avoided through preventive maintenance, including routine inspection, cleaning, and testing.
The Control Concepts Repair Process
Our repair process applies to Hitachi drives, PLCs, and related industrial electronics.
Inspection
We inspect the drive, PLC hardware, terminals, and power connections for substandard conditions caused by heat cycling, vibration, contamination, or improper torque practices.
Electrical Testing
We perform diode and IGBT testing on input and output power sections before applying power to prevent further damage from shorted components.
Controlled Power-Up
The unit is powered up gradually while monitoring voltage, amp readings, and output frequency until rated input voltage is reached.
Functional Testing
We back up existing programs and test the drive and PLC through basic operational and jog functions. If issues occur, we verify output voltage, current ratings, motor rotation, and control logic.
Final Verification
Each Hitachi drive or PLC system is fully tested to confirm proper operation before returning it to service.
Preventive Maintenance Recommendations
To reduce failures and extend equipment life, we recommend:
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Keeping drives and PLCs free of dust and debris
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Ensuring proper ventilation to prevent overheating
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Keeping equipment dry and protected from moisture
Preventive maintenance plays a key role in avoiding unplanned downtime.
24/7 Hitachi Drive & PLC Repair
Control Concepts provides 24/7 Hitachi drive and PLC repair and preventive maintenance services to help reduce downtime and extend equipment life.
If you need Hitachi drive or PLC repair, diagnostics, or maintenance support, contact Control Concepts today.
