HEYNAU Repair Services India
HEYNAU is a German specialist in industrial automation, control electronics, and servo drive technology serving manufacturing sectors across Europe and Asia. Founded in 1975, HEYNAU designs high-precision motion control systems and PLC-based automation solutions for textile machinery, packaging lines, and heavy industrial applications. Their reputation for reliability and compact design has made them a preferred choice in Indian textile mills, paper plants, and automotive suppliers.
HEYNAU is a German specialist in industrial automation, control electronics, and servo drive technology serving manufacturing sectors across Europe and Asia. Founded in 1975, HEYNAU designs high-precision motion control systems and PLC-based automation solutions for textile machinery, packaging lines, and heavy industrial applications. Their reputation for reliability and compact design has made them a preferred choice in Indian textile mills, paper plants, and automotive suppliers.
Synchronics Electronics repairs the complete HEYNAU product portfolio including servo drives, motion controllers, power supplies, and industrial PC-based control modules. With 180+ engineers and 30 years of experience, we diagnose HEYNAU servo faults, reprogram motion controllers, and restore damaged power electronics. Our Vadodara facility stocks genuine HEYNAU components and offers same-day fault analysis for critical HEYNAU repair requests across India.
HEYNAU servo drive and motion control repair specialists across India.
HEYNAU Product Lines We Repair
Our engineers are trained on the full HEYNAU product range. Below are the major product families we service.
HEYNAU ServoControl Drive Series
Compact servo drives for positioning and speed control in textile machinery and packaging equipment. Common faults include encoder communication loss, thermal shutdown due to dust ingress, and firmware corruption from power surges. Synchronics restores encoder connections, cleans thermal pathways, and reloads HEYNAU firmware.
HEYNAU MotionLogic PLC Controllers
Modular PLC systems with integrated motion control for multi-axis applications. Repair needs include corrupted program memory, faulty analog input modules, communication protocol errors, and defective output relay cards. Synchronics performs memory recovery and module-level diagnostics.
HEYNAU Power Supply Modules
Industrial-grade redundant power supplies (24V/48V) with integrated battery backup. Typical faults: capacitor failure causing voltage ripple, optoisolator burnout in feedback circuits, and connector corrosion from humid mill environments. Synchronics rebuilds power stages and restores redundancy detection.
HEYNAU Communication Modules
Ethernet, PROFIBUS, and CANopen gateway modules for networked machinery. Failures include corrupted protocol stacks, damaged RJ45 connectors, and EMI-induced logic failures. Synchronics restores network connectivity and reconfigures device parameters.
HEYNAU Encoder Interface Cards
Incremental and absolute encoder interface modules for feedback processing. Common issues: shorted input protection diodes, drifted signal threshold circuits, and damaged connector pins from repeated tool changer impacts. Synchronics rebuilds analog stages and replaces protective components.
Why Choose Synchronics for HEYNAU 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 HEYNAU 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 HEYNAU Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in HEYNAU equipment arriving at our workshop.
- ✓HEYNAU servo drive encoder timeout error E042 — Intermittent encoder cable connection or signal integrity degradation caused by vibration-induced micro-fractures in twisted-pair shielding, common in high-speed spinning frames and winding machines operating continuously.
- ✓HEYNAU MotionLogic PLC program memory corruption (Error Code C156) — Unexpected power loss during program upload or firmware flash due to inadequate UPS capacity or lightning surge through Ethernet port, particularly prevalent during monsoon season in Indian textile mills.
- ✓HEYNAU servo drive thermal shutdown due to dust accumulation — Insufficient cooling fin spacing design combined with humid mill air containing cotton dust and oil mist creates insulating blanket on heatsink, causing temperature sensors to trigger shutdown prematurely.
- ✓HEYNAU power supply output voltage ripple exceeding 500mV (PSU drift fault) — Aged aluminum electrolytic capacitors in 24V output stage lose capacitance due to high ambient temperatures (40-45°C in Indian plants) and continuous operation, causing 100Hz ripple components to rise.
- ✓HEYNAU PROFIBUS communication intermittency (fault code D78) — Defective optoisolator in COMM-PROFIBUS module experiences signal inversion or gain drift due to aged photodiode and aging LED pair, exacerbated by electromagnetic interference from nearby servo motor cables.
- ✓HEYNAU encoder interface absolute position loss after power cycle — SSI (Synchronous Serial Interface) encoder signal scaling register corruption or loss of startup calibration reference voltage, typically occurring when power supply dip extends below minimum operating threshold during brownout conditions.
How We Repair Your HEYNAU 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 HEYNAU Equipment
We serve plant maintenance teams across all major industries where HEYNAU automation is deployed.
Frequently Asked Questions — HEYNAU Repairs
Do you repair HEYNAU equipment anywhere in India?+
Yes. Synchronics repairs the complete HEYNAU product range including servo drives, motion controllers, power supplies, communication modules, and encoder interfaces. We offer PAN India door-to-door pickup from Mumbai, Delhi, Pune, Bangalore, Chennai, Hyderabad, Ahmedabad, and all other major cities. All repairs are processed at our 10,000 sqft facility in Vadodara, Gujarat with 30-day turnaround average.
What is the typical repair cost for a HEYNAU servo drive?+
HEYNAU servo drive repairs (SC-series) typically range from Rs 15,000-45,000 depending on fault severity. Encoder interface rebuilds cost Rs 8,000-18,000. Power supply module repairs average Rs 12,000-28,000. We provide free diagnostic assessment and written quotation before any repair. Emergency same-day diagnosis costs Rs 3,500 for critical production stoppages.
How long does HEYNAU servo drive repair typically take at Synchronics?+
Standard HEYNAU servo drive repairs require 5-7 working days including component lead time. Critical urgent repairs can be completed in 48 hours if in-stock spare components match your drive variant. Synchronics maintains stock of common HEYNAU modules including encoder interface cards, power supply components, and optoisolators used in all series.
Do you have experience repairing HEYNAU equipment in Indian textile mills?+
Yes. Synchronics has repaired HEYNAU MotionLogic controllers and ServoControl drives in 40+ Indian textile mills including Coimbatore, Surat, Tiruppur, and Ludhiana regions. We understand cotton dust ingress issues, monsoon moisture damage, and the high-speed continuous operation demands of spinning frames. Our dust-related failure repairs specifically address textile mill environments.
Can you reprogram or recalibrate HEYNAU motion controllers after repair?+
Yes. Synchronics recalibrates all HEYNAU MotionLogic and ServoControl parameters post-repair including encoder gain, velocity limits, acceleration curves, and thermal thresholds. We use HEYNAU's proprietary calibration software and perform closed-loop testing under simulated load conditions. If you lack original program backup, we reconstruct motion profiles from captured runtime logs.
How do I send my HEYNAU 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 HEYNAU 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 HEYNAU 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 HEYNAU 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.
HEYNAU Repair Catalog
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Don't See Your HEYNAU Model Listed?
We repair the full range of HEYNAU 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