DYNAC Repair Services India
DYNAC is a specialist manufacturer of industrial automation controllers, servo drives, and motion control systems serving global manufacturing since 1957. Known for robust DC and AC servo systems, DYNAC equipment is widely deployed in Indian textile mills, printing presses, packaging machinery, and precision metalworking plants. Their products are engineered for harsh industrial environments and demanding duty cycles common across Indian manufacturing facilities.
DYNAC is a specialist manufacturer of industrial automation controllers, servo drives, and motion control systems serving global manufacturing since 1957. Known for robust DC and AC servo systems, DYNAC equipment is widely deployed in Indian textile mills, printing presses, packaging machinery, and precision metalworking plants. Their products are engineered for harsh industrial environments and demanding duty cycles common across Indian manufacturing facilities.
Synchronics Electronics repairs the complete DYNAC servo drive and controller portfolio — including legacy DC servo systems, AC brushless drives, and motion control boards. With 180+ engineers experienced in DYNAC architecture since 1994, we diagnose servo faults, encoder problems, thermal issues, and control signal failures using factory-grade test benches. Indian plant managers trust Synchronics for same-week DYNAC turnaround repairs that minimize production downtime.
Factory-certified DYNAC servo and motion control system repair since 1994.
DYNAC Product Lines We Repair
Our engineers are trained on the full DYNAC product range. Below are the major product families we service.
DYNAC DC Servo Drives (Legacy & SCR-based)
Thyristor-controlled DC servo drives powering textile machinery, printing presses, and rotary equipment. Common failures include SCR misfiring, capacitor degradation, armature relay sticking, and encoder interface faults. DYNAC DC drives require precision analog tuning and thermal management.
DYNAC AC Brushless Servo Systems
Three-phase AC synchronous servo drives for high-speed spindles, XY positioning tables, and synchronized multi-axis applications. Prone to PWM failure, phase imbalance detection errors, and thermal runaway in summer climates typical of Indian plants.
DYNAC Motion Controllers & PLC Interfaces
Standalone motion controllers and PLC coupler boards managing multi-axis servo sequences. Typical faults: EEPROM corruption, analog input drift, relay module burnout, RS-232/Modbus communication timeouts, and position feedback loss.
DYNAC Encoder and Feedback Systems
Incremental and absolute shaft encoders, optical interrupters, and resolver interfaces for closed-loop servo control. Indian humidity and dust environments cause connector corrosion, optical window fouling, and resolver coil insulation breakdown.
DYNAC Power Supply Modules (24VDC & 48VDC)
Regulated DC power supplies feeding servo logic cards and solenoid drivers. Industrial power quality issues in Indian plants cause transformer saturation, rectifier diode failure, and voltage regulation collapse under load transients.
Why Choose Synchronics for DYNAC 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 DYNAC 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 DYNAC Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in DYNAC equipment arriving at our workshop.
- ✓SCR thyristor misfire or gate drive failure — DYNAC DC servo drives use SCR output stages for armature current control. Gate drive transformer saturation, optoisolator failure, or gate resistor open-circuit prevents proper SCR commutation, causing reduced torque or drive lockout.
- ✓Encoder signal loss or zero-crossing error — DYNAC servo systems rely on incremental encoders for feedback. Dust accumulation on optical sensors, loose encoder connectors, or shielding damage in the cable path (common in Indian textile mills with cotton lint) disrupts commutation timing and triggers servo faults.
- ✓Thermal shutdown or overtemperature fault code — DYNAC drives dissipate significant heat in enclosed Indian plant environments. Poor ventilation, ambient temperatures above 45°C, heatsink corrosion, and worn cooling fans cause junction temperature to exceed DYNAC's 85°C threshold, triggering protective shutdown.
- ✓Capacitor bank leakage or DC link voltage sag — Electrolytic capacitors in DYNAC power stages degrade under Indian heat and humidity, especially in older drives operating since 1990s. Leakage current rises, equivalent series resistance increases, and peak voltage support collapses during transient load demands.
- ✓Modbus/RS-232 communication timeout or protocol error — DYNAC motion controllers communicate via serial RS-232 or Modbus RTU to factory PLCs. Long cables through noisy Indian plant environments, missing 120-ohm termination resistors, or corrupted EEPROM baud rate tables cause intermittent frame loss and station lockout.
- ✓Position feedback zero loss or offset drift — DYNAC brushless servo drives use resolver or absolute encoder feedback for commutation. Resolver coil insulation breakdown due to condensation, or absolute encoder SSI data line shorted by moisture causes zero offset shift, preventing proper phase commutation.
How We Repair Your DYNAC 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 DYNAC Equipment
We serve plant maintenance teams across all major industries where DYNAC automation is deployed.
Frequently Asked Questions — DYNAC Repairs
Do you repair DYNAC equipment anywhere in India?+
Yes. Synchronics repairs the full DYNAC product range — DC servo drives, AC brushless motors, motion controllers, encoders, and power supplies. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Surat, Indore, and all other major cities. Equipment ships to our factory in Vadodara, Gujarat, where 180+ engineers diagnose and repair same-week.
What should I do if my DYNAC drive shows a thermal fault code?+
First, check heatsink fins for dust and clean with compressed air. Verify ambient temperature is below 40°C and cooling fan rotates freely. If fault persists, contact Synchronics. We test heatsink thermal interface, check sensor calibration, and perform thermal stress testing to validate the fault is cured and won't recur in summer months.
How do DYNAC encoder problems affect my machinery spindle?+
DYNAC encoders provide closed-loop feedback for servo commutation. If the encoder signal is dirty or intermittent, the drive loses rotor position sensing, causing rough torque ripple, loss of synchronization, and servo alarms. Synchronics cleans encoder optics, tests signal quality with real-time waveform capture, and validates encoder zero timing before shipping back.
Can you repair older DYNAC DC drives from the 1990s?+
Yes. Synchronics specializes in legacy DYNAC DC servo systems. We repair SCR gate drives, thyristor modules, armature relays, and field control circuits. We stock original and equivalent-spec components and validate DC drive performance on industrial load banks before returning to customer.
What causes DYNAC capacitor bank failure in Indian plants?+
DYNAC electrolytic capacitors degrade quickly in hot, humid Indian climates — especially in plants without air conditioning. High ambient temperature, salt-air environments (near coasts), and decades of continuous operation cause leakage and ESR rise. Synchronics measures capacitor health, replaces failed cells with premium military-grade types, and stress-tests the power stage.
How do I send my DYNAC 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 DYNAC 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 DYNAC 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 DYNAC 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.
DYNAC Repair Catalog
No products found for DYNAC
Don't See Your DYNAC Model Listed?
We repair the full range of DYNAC 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