CELES Repair Services India
CELES is a French manufacturer of industrial control systems, soft starters, frequency drives, and programmable logic controllers serving global manufacturing sectors since 1979. CELES equipment is widely deployed across Indian textile mills, food processing plants, cement facilities, and automotive assembly lines. Known for robust soft-starter technology and cost-effective drive solutions, CELES maintains strong OEM partnerships across South Asian industrial automation markets.
CELES is a French manufacturer of industrial control systems, soft starters, frequency drives, and programmable logic controllers serving global manufacturing sectors since 1979. CELES equipment is widely deployed across Indian textile mills, food processing plants, cement facilities, and automotive assembly lines. Known for robust soft-starter technology and cost-effective drive solutions, CELES maintains strong OEM partnerships across South Asian industrial automation markets.
Synchronics Electronics has 29 years of expertise repairing CELES soft starters, VFDs, and control modules in Indian manufacturing plants. Our 180+ engineers have resolved thousands of CELES equipment failures — from soft-starter capacitor failures to firmware corruption in legacy control boards. We maintain fast turnaround on CELES diagnostics and stock critical replacement components for rapid repairs. Plant managers across India trust Synchronics for 24-hour CELES emergency support and documented repair solutions.
CELES soft-starter and frequency drive repair experts serving Indian manufacturing since 1994.
CELES Product Lines We Repair
Our engineers are trained on the full CELES product range. Below are the major product families we service.
CELES Soft Starters (SSL, SSM, SSR ranges)
Electromechanical and electronic soft-start controllers for AC induction motors (up to 630 kW). Common failures include thyristor faults, firing circuit failures, and thermal overload trips. Synchronics diagnoses soft-starter board defects and performs thyristor pair replacement with full load testing.
CELES Frequency Drives (VF, VFD series)
Variable frequency drives for motor speed control and energy optimization in pumps, compressors, and fan applications. Typical issues: DC bus capacitor ripple, IGBT gate-drive faults, encoder communication loss, and phase imbalance protection nuisance trips.
CELES PLC and Control Modules (CM-Pro, CM-Plus)
Compact programmable controllers and I/O modules for machine automation and process control. Common faults: memory chip degradation, relay contact welding, analog module drift, and Modbus communication timeouts. Synchronics performs board-level repair and firmware validation.
CELES Panel-Mount Controllers (PM-800, PM-1200)
Industrial operator panels with integrated logic control for textile, cement, and steel applications. Failures include touchscreen layer delamination, backlight inverter burnout, and button membrane wear. Synchronics replaces LCD assemblies and repairs power supply modules.
CELES Passive Soft-Start Components (Thermal Bypass Units)
Mechanical bypass units used with soft starters to reduce steady-state heat dissipation and extend contactor life. Failures occur from contactor coil insulation breakdown and mechanical timing drift. Synchronics replaces contactors and re-tunes bypass logic timing.
CELES Commissioning and Service Modules
Field installation and diagnostics modules for soft-start and drive parameter setup. Typical faults: LCD pixel failure, parameter memory loss, and USB communication port damage. Synchronics restores factory settings and repairs charging circuits.
Why Choose Synchronics for CELES 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 CELES 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 CELES Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in CELES equipment arriving at our workshop.
- ✓Soft-starter thyristor short circuit fault — Thermal cycling stress or transient overvoltage surge on motor load causes thyristor junction damage. CELES soft starters operating in high-vibration textile mills and cement plants experience accelerated thyristor wear due to continuous start cycles.
- ✓DC bus capacitor ESR ripple and voltage sag — Electrolytic capacitor aging in CELES frequency drives reduces capacitance and increases equivalent series resistance. Indian plants with poor power factor correction and frequent voltage transients see premature capacitor failure within 4-6 years.
- ✓CELES soft-starter ramping current limiting failure — Potentiometer wear or noise in the firing delay circuit prevents smooth current ramp during motor acceleration. This causes nuisance overload shutdowns or jerky motor starts in pumping and compressor applications.
- ✓CELES PLC memory chip bit corruption — UV light or electrostatic discharge damages non-volatile memory cells in CM-Pro and CM-Plus controllers, causing stored program loss or conditional logic faults. Indian manufacturing plants often lack proper ESD control during maintenance.
- ✓Frequency drive IGBT gate-drive circuit oscillation — Parasitic coupling between power and control traces on CELES VFD PCBs, combined with long motor cables in cement mill layouts, causes gate-drive voltage ringing and false IGBT turn-off commands. Results in intermittent drive faults and motor stalling.
- ✓CELES soft-starter overtemperature shutdown in steady state — Reduced motor load (partial flow in pump systems) combined with high ambient temperature in unventilated control cabinets causes internal soft-starter heatsink temperature to exceed 70°C. Thermal sensor setpoint drift also contributes.
How We Repair Your CELES 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 CELES Equipment
We serve plant maintenance teams across all major industries where CELES automation is deployed.
Frequently Asked Questions — CELES Repairs
Do you repair CELES soft starters and frequency drives anywhere in India?+
Yes, absolutely. Synchronics repairs the complete CELES product portfolio — soft starters, VFDs, PLCs, and control modules — across all Indian states. We offer same-day courier pickup from Mumbai, Delhi, Bangalore, Chennai, Pune, Ahmedabad, Hyderabad, Jaipur, and 500+ other Indian cities. Our Vadodara facility houses dedicated CELES repair benches with full testing capabilities. Average turnaround: 3-5 working days.
What is typical repair cost for a CELES soft starter thyristor failure?+
Thyristor pair replacement for CELES soft starters (SSL 11-45 range) typically costs INR 8,000-15,000 including parts, labor, and full load testing. Final cost depends on soft-starter power rating and additional component damage found during diagnostics. Synchronics provides transparent quotation after 2-hour free evaluation. We source OEM-equivalent thyristors for reliability.
Can Synchronics repair CELES frequency drives with burnt IGBT modules?+
Yes. CELES VFD IGBT failures (VF 22-250 range) are repaired through IGBT module replacement and gate-drive circuit validation. If IGBT short caused secondary damage to DC bus capacitors or snubber resistors, Synchronics replaces all affected components and performs 2-hour motor load test. Cost: INR 12,000-25,000 depending on drive size and extent of secondary damage.
Do you stock CELES spare parts or only repair existing units?+
Synchronics maintains stock of high-failure CELES components: thyristor pairs, DC bus capacitors, IGBT modules, relays, thermal sensors, and control transformer kits. For rare or obsolete CELES parts (legacy SM-80 drives, old 4-digit PLC modules), we source from authorized distributors within 7 days. We do not supply components separately; parts are used only for authorized Synchronics repair work.
Can you repair CELES soft-starter bypass contactors with stuck mechanical latches?+
Yes. CELES TBU (Thermal Bypass Unit) contactor latch failures — caused by mechanical wear, dust ingress, or coil burnout — are fully repairable. Synchronics disassembles the bypass unit, cleans contact arms, replaces worn contactors with new CELES or equivalent units, and re-tunes the bypass timing with factory commissioning tools. Repair typically takes 5-7 working days including mechanical testing.
How do I send my CELES 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 CELES 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 CELES 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 CELES 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.
CELES Repair Catalog
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Don't See Your CELES Model Listed?
We repair the full range of CELES 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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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