DC Drive Repair
DC drives are the backbone of the production line in rolling mills, extrusion lines and heavy-industry applications that require high torque. Our experienced engineers handle all DC drive faults — from thyristor firing problems to control-board issues — at component level and deliver the unit after testing under load.
DC Drive Fault Symptoms
- Power-module (thyristor/diode) faults, overcurrent and alarms
- Thyristor firing fault, motor not turning
- Unstable speed control, fluctuating operation
- Drive not powering on due to control-board fault
- Blown fuses and supply issues
- Loss of parameters / firmware
Our DC Drive Repair Process
We test the power module (thyristor/diode) for integrity and repair the control and firing boards at component level in an antistatic environment. We back up the firmware and parameters first to eliminate data loss, then test the drive under load on our simulation stand to confirm stable operation.
Which DC Drive Brands Do We Repair?
We repair DC drives from Siemens Simoreg, ABB DCS, Control Techniques (Mentor), Sprint Electric and Eurotherm, among others, including component-level solutions for obsolete models.
Frequently Asked Questions
My DC drive has a thyristor fault — can it be repaired?
Yes. We test power-module components such as thyristors and diodes, replace them with originals and repair the firing board.
Will my parameters / firmware be lost during repair?
No. We back up the firmware and parameters before repair and restore them afterwards.
Can you repair the drive together with my DC motor?
Yes. Faults often affect motor and drive together; repairing both and testing under load is the most reliable solution.
How can I send my drive, and is there a warranty?
You can ship it by cargo from anywhere in Turkey. Every repaired DC drive is delivered under warranty after load testing.