AC/DC Drives — Maintenance & Repair

We specialize in preventive maintenance and fault repair of all types of AC/DC drives across industrial plants — VFDs, DC Thyristor drives, Servo/Spindle drives, Soft Starters & Regenerative systems.

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What We Do

Breakdown aa gaya ho ya scheduled shutdown — hum **inspection, diagnosis, repair, parts replacement, testing** aur **commissioning** end-to-end handle karte hain. Goal: **minimum downtime**, **safe operation**, **stable production**.

Preventive Maintenance

Cleaning, thermal checks, capacitor health, fan/bearing inspection, parameter backup & firmware review.

Fault Repair

IGBT/thyristor modules, bridge rectifiers, control boards, drivers, power supply & keypad replacement/repair.

On-Site Support

Emergency visit, parameter tuning, commissioning & load testing at your factory floor.

All Types of AC/DC Drives

Hum in sab categories pe kaam karte hain:

AC VFD (Inverters)
Soft Starters
DC Thyristor Drives
Servo Drives
Spindle Drives
Regenerative Drives
Multi-Axis Drives
Cranes/Hoist Drives

Supported Brands

We provide maintenance, repair, and servicing for AC Drives from leading brands including Siemens, ABB, Schneider, Allen-Bradley, Delta, Fuji, Mitsubishi, Yaskawa, Danfoss, Omron, Emerson, KEW, LS, Parker, and others.

Siemens

ABB

Schneider

Allen-Bradley

Delta

Mitsubishi

Yaskawa

Danfoss

Parker

Common Faults We Fix

Symptom Likely Cause Action
Over-current / OC, OL trip IGBT short, motor insulation low, output short, tuning mismatch Power stage repair, insulation test, parameter tuning
Over-voltage / Under-voltage DC bus caps weak, braking chopper fault, supply fluctuation Capacitor replacement, chopper check, supply conditioning
Drive not powering ON SMPS/PSU failure, fuse blown, control board fault PSU repair, protection check, board level repair
Encoder / Feedback error Encoder cable/align issue, feedback board fault Encoder alignment, cable test, board repair
Ground fault / E-Stop loop error Wiring damage, EMI/earthing issue, safety chain open Wiring rectification, earthing audit, safety loop restore

Our Maintenance Process

1
Inspection & Diagnosis

Fault code review, visual/thermal inspection, component testing & parameter backup.

2
Repair & Parts

Module/board level repair, caps/fans/bearings replacement, solder reflow & conformal coating.

3
Testing & Handover

No-load/load test, parameter tuning, commissioning & documentation with report.

Industries We Serve

Steel • Power • Cement • Auto • Packaging • Textile • Pharma • Machine Tools • Fabrication

Steel & Rolling
Cranes & Hoists
Compressors & Pumps
Machine Tools

Need urgent drive repair or maintenance?

Call or WhatsApp now — we cover all industrial companies across regions.

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