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VFD & industrial
electronics repair

Adityapur-2, Jamshedpur

Inside the lab

Our workshop is set up for one job: finding the exact fault in industrial electronics and proving the repair before it leaves. Repair benches, a test area, and storage for spares and the repair queue.

Electronic Point workshop interior, Adityapur
Fig. 01The workshop floor

01 · Diagnosis

Find the fault, not just the failed board

Digital storage oscilloscopes for gate-drive, trigger and signal analysis. Isolated variable supplies and true-RMS instruments. Semiconductor, insulation-resistance and hi-pot testing. Thermal inspection to find the hotspots that only appear under load.

Board under test on the oscilloscope
Fig. 02Signal analysis
Diagnostic bench with oscilloscope and meters
Fig. 03Diagnostic bench

02 · Rework

Component-level repair

SMD and through-hole rework stations, magnified inspection for fine-pitch parts, track repair and via reconstruction, conformal re-coating, and controlled cleaning of contaminated boards. ESD-protected work areas.

Microscope rework station for component-level repair
Fig. 04Microscope rework station
Control board repair under the microscope
Fig. 05Board under repair

03 · Load testing

Proven at rated current

A drive-and-motor setup runs repaired drives at rated current for at least 30 minutes. Three-phase variable input lets us check behaviour at brown-out and overvoltage. Extended burn-in before dispatch.

Before dispatch
1
No-load power-up: output voltage, frequency, waveform
2
Test motor connected for the drive rating
3
Full load at rated current, 30 min minimum
4
IGBT and heatsink temperatures checked under load
5
Parameters verified
6
Test report with input and output measurements
Drive boards wired up in a test setup
Fig. 06Boards wired into a test setup
Several drives laid out in the test area
Fig. 07Drives in the test area

04 · Programming

Parameterisation and copying

Parameter backup, restore and copying between drives, so a repaired or replacement drive goes back with exactly the settings it left with. Drive commissioning software for the major makes, plus PLC and HMI programming.

Drive parameterisation from a laptop
Fig. 08Drive parameterisation
Parameter backup and copying
Fig. 08bParameter backup and copying

05 · Spares

Spares in stock for quick repair

IGBTs, thyristors, driver ICs, bus capacitors and cooling fans held in stock, plus reference units and an end-of-life sourcing network for parts that are no longer made.

Spares and components inventory
Fig. 09Spares and components
Tagged drives and controllers on the repair-queue shelves
Fig. 10Tagged units in the repair queue

06 · Big drives

Room for high-power stacks

Floor space for high-power drive stacks and cabinet drives, and a pickup vehicle for plant collections and deliveries.

High-power drives in the service area
Fig. 11High-power drives
Cabinet drive in the repair bay
Fig. 12Cabinet drive in the repair bay

More from the workshop

On the benches this year

Breakdown support

Drive down? Send us the nameplate.

A clear photo of the nameplate and the fault code on the display is usually enough for us to tell you what's likely wrong and what it will take.