Power electronics · DC drives
DC drive repair in India: SCR and thyristor drives
Star Automations repairs industrial DC drives (SCR and thyristor) from all leading brands, including WEG DC drives. We repair power stacks, firing and control boards. Send the label photo and the fault, and we confirm whether the drive is repairable before you ship it. We are an independent repair company, not an OEM service centre.
What we repair
Star Automations repairs SCR and thyristor DC drives used on DC motors in mills, extruders, winders, lifts and machine tools.
Units come to our benches in Chennai, Puducherry and Bengaluru by courier or transport. We confirm repairability from the label photo before you ship.
- Armature and field controller boards
- Firing and gate driver boards
- Thyristor (SCR) power stacks
- Board-level diagnosis and bench test
Brands and drive types
WEG
DC drives and control boards
Siemens Simoreg
6RA series DC drives
ABB DCS
DC drive series
Parker and Eurotherm 590
DC drives and controllers
Control Techniques Mentor
DC drives
Other makers
Send the label photo and we check
Not listed? Send the label photo and the fault. Obsolete DC drives are handled where possible.
Common faults and what to check first
Armature overcurrent trip
Check the motor, brushes and cabling. A shorted thyristor or a firing fault is a common cause.
Field loss or field fault
Check the field supply and fuses first, then the field controller board.
No output or motor does not run
Check enable signals and the supply first, then the firing and control board.
Speed feedback loss
Tacho or encoder feedback problem. Tell us the feedback type.
How it works
Photo
Send the label photo and the fault.
Check
We confirm repairability and a quote.
Ship
The unit comes to our bench.
Repair
Board-level repair and test.
Return
Unit and test report go back to you.
Free repairability check: what to send
Send these details and we tell you whether the unit is repairable before you ship anything.
- Label photo showing model and serial number
- Fault description or fault code
- Motor armature and field voltage and current
- Speed feedback type (tacho or encoder)
- Application and operating hours if known
Send the label photo
Name, contact and a photo of the label. We reply with a repairability check before you ship anything.
Message received
Our team replies by email or WhatsApp with the next step. For anything urgent, WhatsApp +91 97866 22233.
Frequently asked questions
Do you repair DC drives?
Yes. We repair SCR and thyristor DC drives from all leading brands at board level. Send the label photo and the fault.
Do you repair WEG DC drives?
Yes. We repair WEG DC drives and control boards. Send the label photo and the fault.
Can you repair a drive with shorted thyristors?
Power stack faults are common and often repairable. We confirm after we see the label photo and the fault.
Do you repair obsolete DC drives?
Where possible, yes. Many older DC drives are still in service and we handle them where parts allow.
Are you an authorised service centre?
No. Star Automations is an independent multi-brand repair company, not an OEM or authorised centre.
Do you also repair DC motors?
Yes. See our DC motor repair page for motors, brushes and commutators.
How do I send the drive?
Courier or transport to our bench in Chennai, Puducherry or Bengaluru. Send the label photo first.
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