ASTRA Repair Services India
ASTRA is a leading Italian manufacturer of industrial automation systems, motion control electronics, and robotic integration solutions. Founded in 1978, ASTRA specializes in servo drives, stepper motor controllers, and programmable logic modules for precision manufacturing. The company has a strong presence across European and Asian markets, with significant adoption in Indian automotive, textile, and precision engineering sectors where reliability and technical support are critical.
ASTRA is a leading Italian manufacturer of industrial automation systems, motion control electronics, and robotic integration solutions. Founded in 1978, ASTRA specializes in servo drives, stepper motor controllers, and programmable logic modules for precision manufacturing. The company has a strong presence across European and Asian markets, with significant adoption in Indian automotive, textile, and precision engineering sectors where reliability and technical support are critical.
Synchronics Electronics has established deep expertise repairing ASTRA servo drives, stepper controllers, motion control boards, and PLC modules since the mid-2000s. We maintain an extensive inventory of ASTRA components and firmware for rapid diagnostics and repair turnaround. Our 180+ engineers have successfully repaired over 500+ ASTRA motion control systems across Indian automotive OEMs, textile mills, and job-work shops, earning trust through transparent repair reports and 24-36 month warranties.
Expert ASTRA servo drive and motion controller repair — 20+ years, 500+ systems restored.
ASTRA Product Lines We Repair
Our engineers are trained on the full ASTRA product range. Below are the major product families we service.
ASTRA Servo Drives (SD Series)
AC servo drive units for precision motion control in textile machinery, printing presses, and automotive assembly lines. Common failures include capacitor degradation, power stage IGBT faults, and encoder signal loss causing position errors and jerky motion.
ASTRA Stepper Motor Controllers (SMC Series)
Microstepping controllers for positioning applications in CNC machines, packaging equipment, and precision grinding. Typical faults include step/direction signal misinterpretation, thermal runaway, and burnt driver chips leading to motor stall.
ASTRA Motion Control Boards (MCB Series)
Multi-axis interpolation and real-time motion boards used in multi-spindle lathes, rotary indexers, and transfer machines. Repair issues include timing synchronization loss, DAC output drift, and watchdog timer failures.
ASTRA Programmable Logic Modules (PLM Series)
Compact PLC modules and I/O expansion units for machine control and automation sequencing. Common failures include relay contact wear, input isolation optocoupler burnout, and firmware corruption requiring reprogramming.
ASTRA Resolver and Encoder Interface Cards (REC Series)
Precision signal conditioning cards for absolute and incremental position feedback in servo systems. Typical faults include resolver excitation oscillator failure, signal conditioning amp drift, and CRC checksum errors in multi-turn data.
ASTRA Power Supply Modules (PSM Series)
Regulated 24V, 48V, and custom voltage supplies with integrated monitoring for distributed control cabinets. Failures include transformer saturation, rectifier diode leakage, and output voltage sag under fault conditions.
Why Choose Synchronics for ASTRA 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 ASTRA 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 ASTRA Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in ASTRA equipment arriving at our workshop.
- ✓Servo drive output not responding to command signals — ASTRA SD series drives commonly experience encoder signal loss or resolver excitation failure, preventing closed-loop feedback. This triggers internal watchdog reset and drive lockout to protect the motor and load. Signal integrity issues between the drive and encoder connector are the primary culprit in Indian humidity-prone manufacturing environments.
- ✓Stepper motor stalling and missing steps during motion — ASTRA SMC series controllers lose step synchronization when driver chip temperature rises or when pulse frequency exceeds the microstepping capability. In Indian textile mills and job-work shops running 16-18 hour shifts, thermal stress on the power transistor array causes gradual driver gain loss, manifesting as skipped steps on the return pass of indexing cycles.
- ✓Motion control board losing synchronization on multi-axis machines — ASTRA MCB series boards use a shared timing oscillator for axis interpolation. When the oscillator frequency drifts due to aging capacitor aging or PCB moisture ingress, the real-time clock skew causes axes to fall out of phase. This is common in older transfer machines and multi-spindle lathes operating in coolant-laden shop floor environments across India's automotive cluster in Pune and Aurangabad.
- ✓PLC input signals not registering and triggering random faults — ASTRA PLM series modules use optocoupler isolation for digital inputs. Extended exposure to moisture and condensation in seasonal Indian manufacturing regions (monsoon in coastal Gujarat, winter dew in northern mills) causes the optocoupler LED to degrade, increasing the trigger threshold until inputs become unreliable. This appears as intermittent fault codes and sequence halts.
- ✓Resolver excitation missing and encoder error codes on startup — ASTRA REC series resolver interface cards rely on a dedicated oscillator to generate the 5-10 kHz excitation carrier. Burnout of the excitation driver transistor (usually a small-signal BJT) due to impedance mismatch on the resolver winding prevents the card from generating the reference frequency, causing immediate CRC checksum failure and position loss.
- ✓Power supply module tripping on load and no 24V output in cabinet — ASTRA PSM series supplies use aging electrolytic capacitors in the rectifier section that lose capacitance over 5-8 years of operation. In Indian industrial climates with temperature swings from 15C to 50C, the ripple current rating is exceeded, causing soft thermal fuse triggers and intermittent shutdown. Secondary cause is transformer core saturation from 230V input voltage spikes during monsoon power transients.
How We Repair Your ASTRA 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 ASTRA Equipment
We serve plant maintenance teams across all major industries where ASTRA automation is deployed.
Frequently Asked Questions — ASTRA Repairs
Do you repair ASTRA equipment anywhere in India?+
Yes. Synchronics repairs the complete ASTRA product range — servo drives, stepper controllers, motion control boards, PLC modules, resolver interface cards, and power supplies. We offer PAN India door pickup and return logistics from all major industrial hubs including Mumbai, Delhi, Pune, Ahmedabad, Bangalore, Hyderabad, Chennai, and Vadodara. Repairs are handled at our main facility in Vadodara, Gujarat, with 24-36 month warranty and detailed technical reports.
What is ASTRA's resolver excitation frequency and how do you test it?+
ASTRA REC series resolver interface cards typically use 5-10 kHz excitation frequency depending on the resolver type (standard ASTRA resolvers use 400 Hz, 5 kHz, or 10 kHz). Synchronics uses precision function generators and oscilloscopes to verify the excitation amplitude (typically 2-3V RMS) and frequency stability. We also confirm the demodulation phase shift and output signal amplitude. If the excitation oscillator has failed, we replace the driver circuit and recalibrate the trim potentiometer for your specific resolver impedance.
Can Synchronics repair ASTRA stepper controllers used in textile mills with high-speed indexing?+
Absolutely. ASTRA SMC series controllers are extensively used in Indian textile mills for winding, dyeing, and finishing machinery. Synchronics has repaired over 150+ SMC units from mills across Tamil Nadu, Maharashtra, and Gujarat. Common issues include step loss at high pulse rates (>50 kHz), thermal drift in microstepping resolution, and burnt driver chips from coolant spray. We test microstepping linearity, verify the step/direction signal timing margins, and upgrade thermal management on the driver array.
Do you stock spare parts for ASTRA motion control boards?+
Yes. Synchronics maintains an inventory of critical ASTRA components including timing oscillators, optocoupler modules, driver transistors, resolver excitation circuits, and precision resistor networks. For MCB series multi-axis boards, we stock EEPROM programming modules and firmware for rapid restoration. Lead time for non-stock components from ASTRA distribution partners is typically 4-6 weeks, so we prioritize in-stock parts to keep your machine running.
What warranty do you offer on ASTRA repairs?+
Synchronics offers 24-36 month warranty on all ASTRA repairs, covering parts and labor for the same fault recurrence. Warranty is voided only if the equipment is modified or subjected to environmental abuse beyond industrial specifications. We also provide 12-month warranty on refurbished ASTRA modules with full component replacement and testing.
How do I send my ASTRA 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 ASTRA 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 ASTRA 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 ASTRA 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.
ASTRA Repair Catalog
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Don't See Your ASTRA Model Listed?
We repair the full range of ASTRA 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