DASEN Repair Services India
DASEN is a specialized manufacturer of industrial control systems, frequency converters, and automation equipment serving manufacturing plants across Asia and emerging markets. Based in China, DASEN has built a strong presence in India's textile, steel, cement, and food processing sectors since 2010, supplying cost-effective yet reliable variable frequency drives (VFDs) and programmable logic controllers (PLCs) to hundreds of OEMs and end-users.
DASEN is a specialized manufacturer of industrial control systems, frequency converters, and automation equipment serving manufacturing plants across Asia and emerging markets. Based in China, DASEN has built a strong presence in India's textile, steel, cement, and food processing sectors since 2010, supplying cost-effective yet reliable variable frequency drives (VFDs) and programmable logic controllers (PLCs) to hundreds of OEMs and end-users.
Synchronics Electronics repairs the complete DASEN product portfolio—including their VFD series, compact PLCs, motion controllers, and HMI panels—with 180+ engineers trained on DASEN firmware, IGBT diagnostics, and control logic troubleshooting. Our Vadodara facility has serviced DASEN equipment across Indian textile mills, sugar factories, and pump stations since 2015, delivering same-day fault diagnosis and 72-hour turnaround for most repairs.
Expert DASEN VFD and PLC repair across India—180+ engineers, 72-hour turnaround.
DASEN Product Lines We Repair
Our engineers are trained on the full DASEN product range. Below are the major product families we service.
DASEN VFD Series (D100, D200, D300)
Industrial frequency converters for AC motor speed control in pumps, compressors, and conveyor systems. Common repairs include IGBT module failure, capacitor ripple issues, and communication protocol faults on Modbus/CANopen interfaces.
DASEN Compact PLC Range (DSL-08, DSL-16, DSL-24)
Entry-level programmable logic controllers for machine automation and process control. Typical faults include relay card burnout, analog input isolation issues, and firmware corruption after power surges.
DASEN Motion Controller Series (MC-2000, MC-4000)
Multi-axis motion and servo coordination controllers for textile looms, packaging lines, and CNC applications. Repairs involve encoder interface faults, PWM output circuit failures, and real-time timing errors.
DASEN HMI Touch Panels (T-series 7 inch, 10 inch)
Industrial human-machine interfaces for plant floor monitoring and equipment control. Common faults include display backlight degradation, touch sensor dead zones, and Ethernet communication dropout.
DASEN Smart Soft Starters (SS-series 15-55 kW)
Reduced voltage motor starters for large AC motors in pumping and compression applications. Repairs typically address thyristor leakage, gate driver circuit faults, and current sensing transducer drift.
DASEN Energy Meter & Monitoring Modules (EM-3000, PM-1000)
Industrial power quality and energy consumption meters for factory auditing and load balancing. Common faults include CT saturation issues, voltage divider precision loss, and analog-to-digital conversion errors.
Why Choose Synchronics for DASEN Repairs?
PCB-Level Expertise
We repair down to the component level — not just swap boards. Our engineers identify root causes, replace failed IGBTs, capacitors, processors, and gate drivers on DASEN equipment.
Fast Turnaround
Standard 7–10 working days. Express 3–5 days available for critical breakdowns. Emergency same-day/next-day service for unplanned downtime.
6-Month Warranty
Every repaired unit ships with a 6-month comprehensive warranty on parts and labour. Our repair success rate is over 94% across all brands.
All-India Service
Couriered repairs accepted from any city in India. Doorstep pickup available in Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common DASEN Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in DASEN equipment arriving at our workshop.
- ✓DASEN VFD IGBT module thermal runaway and short-circuit failure — Inadequate heatsink cleaning (dust accumulation common in Indian textile mills) or prolonged overload operation at high ambient temperatures above 40°C causes junction temperature to exceed IGBT rating, leading to gate oxide breakdown and phase loss.
- ✓DASEN D-series VFD capacitor bank ripple voltage exceeding 10% THD — Electrolytic capacitors degrade after 3-5 years in high-temperature switching environments, or installation near hot motor/cable runs accelerates aging. Leads to voltage ripple feedback, tripping load faults.
- ✓DASEN PLC analog input channel reading drifts 3-7% over 30 minutes — Isolation optocoupler degradation or 4-20mA signal conditioning amplifier temperature coefficient error—especially in outdoor control cabinets without climate control common in Indian sugar and cement plants.
- ✓DASEN Motion Controller MC-4000 loses encoder sync during high-speed axis movement — Encoder differential line receiver noise immunity degradation, or corrupted encoder firmware table in flash memory after brownout event. Causes position following error and emergency stops on textile looms.
- ✓DASEN Soft Starter thyristor gate trigger circuit fails to fire—motor won't start — Gate driver transformer primary winding short or gate pulse isolation optocoupler failure prevents control signal reaching thyristor gates. Often triggered by power supply voltage spike during industrial lightning strikes.
- ✓DASEN HMI T-10 touchscreen becomes unresponsive in lower-left 20% of display area — Resistive touch sensor layer delamination or worn conductive coating from repetitive operator finger contact in high-humidity mill environments. Sensor bridge impedance becomes non-linear.
How We Repair Your DASEN Unit
Receive & Log
Your unit is logged into our tracking system with a unique job number. You receive WhatsApp / email updates at every stage.
Fault Diagnosis
Board-level diagnosis using oscilloscopes, LCR meters, and thermal cameras. Root cause identified before any repair begins.
Component Repair
Faulty ICs, capacitors, MOSFETs, IGBTs, and gate drivers replaced with genuine or equivalent-spec components.
Full-Load Test
Unit tested under rated load with original or equivalent motor. All parameters verified. 6-month warranty issued.
Industries Using DASEN Equipment
We serve plant maintenance teams across all major industries where DASEN automation is deployed.
Frequently Asked Questions — DASEN Repairs
Do you repair DASEN equipment anywhere in India?+
Yes. Synchronics repairs the complete DASEN VFD, PLC, motion controller, HMI, and soft starter range across PAN India. We offer free door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bangalore, Kolkata, and all other Indian cities. All repairs are performed at our Vadodara, Gujarat facility with 72-hour standard turnaround.
What warranty do you offer on DASEN VFD and PLC repairs?+
Synchronics provides 12-month parts replacement warranty on all repaired DASEN drives and controllers, plus 24-month extended warranty optional. We replace faulty components again at no cost within warranty period. All repairs include full function test report and run-in verification.
Can you repair DASEN D-series VFDs with burnt IGBT modules and no visible part number?+
Yes. Our DASEN specialists cross-reference thermal characteristics, voltage rating, and switching frequency from circuit board layout and gate driver IC type. We identify original IGBT model, then source silicon carbide equivalents with better temperature stability for tropical Indian conditions. Repair typically takes 48 hours.
How do you diagnose DASEN PLC encoder and analog input faults?+
Synchronics uses dual-channel digital oscilloscope to measure encoder quadrature phase relationship, current loop bridge linearity, and isolation voltage withstand. We perform full diagnostic report with before/after waveforms. This identifies whether fault is sensor wiring, signal conditioning, or digital input filtering—leading to precise repair and prevents repeat failures.
Do you stock DASEN spare parts for quick repair turnaround?+
Synchronics maintains inventory of common DASEN replacement modules—IGBT packs for D-series VFDs, capacitor banks, gate driver transformers, isolation optocouplers, and encoder interface cards. This enables 24-48 hour repair for 85% of DASEN faults. Non-stock components are sourced from DASEN China distributor within 5-7 working days.
How do I send my DASEN unit for repair?+
Pack the unit securely and courier it to our Vadodara workshop. Include a note with the fault description and your contact details. We will log it into our system and WhatsApp you a job number within 24 hours of receipt. Doorstep pickup is available in Vadodara, Ahmedabad, Surat, Mumbai, and Pune.
What is the cost of repairing a DASEN drive or PLC?+
Repair cost depends on the model and the fault. We offer a free diagnosis — once we identify the fault, we provide a fixed quotation before proceeding. Typical repairs cost 20–40% of the new unit price. We will never repair without your approval.
What warranty do you provide on DASEN repairs?+
All repaired units carry a 6-month comprehensive warranty covering the same fault and related issues. If the fault recurs within the warranty period, we repair it free of cost.
Do you provide a no-fix, no-fee guarantee?+
Yes. If we cannot repair your DASEN unit after diagnosis, you pay only the diagnosis fee (₹500–₹1,500 depending on the product). The unit is returned to you at no additional charge.
DASEN Repair Catalog
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Don't See Your DASEN Model Listed?
We repair the full range of DASEN industrial electronics — even if the specific model is not yet in our catalog. Send us the unit details and we'll confirm repairability within 24 hours.
Free evaluation • 6-month warranty • PAN India pickup
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Back in Action — Fast
Send us your faulty industrial electronics. Our engineers will diagnose it and provide a detailed quote within 24 hours — with no obligation to proceed.
Free Evaluation
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service