Ship Your Servo Drive to Us — We Repair, Return in Days
Servo drive failure stops a machine immediately. A new Siemens SINAMICS S120 booksize module costs €1,800–4,500. A Yaskawa SGDV replacement: €900–2,800. A Fanuc Alpha servo amplifier: €1,200–3,500. Our component-level repair costs a fraction of that — and customers from Berlin, Hamburg, Munich, Frankfurt, Vienna, Zurich, Amsterdam, Rotterdam, Brussels, Paris, Lyon, Milan, Turin, Prague, Bratislava, Warsaw, and Stockholm ship us modules regularly using standard DHL or DPD courier.
Packing is straightforward: original box or bubble wrap + foam, declare "Electronic module for repair" on the waybill. We arrange return courier. Door-to-door repair without leaving your facility.
Siemens SINAMICS S120 / S210 Repair
The SINAMICS S120 booksize and chassis format drives are the most common servo system in German and Austrian manufacturing. We repair:
- Power Module (PM340, PM240-2) — F30001 (overcurrent), F30002 (overvoltage), F30003 (undervoltage), F30004 (drive overtemperature). Root causes: IGBT gate drive board failure, DC bus capacitor ESR increase, NTC thermistor drift. We replace faulty IGBTs, gate resistors, bootstrap capacitors and capacitor banks at component level.
- Control Unit (CU320-2, CU310-2) — A01900 (DRIVE-CLiQ communication fault), F01910 (drive object not ready). Root causes: DRIVE-CLiQ transceiver IC failure, FPGA configuration EEPROM corruption, DDR memory failure. We reflash FPGA firmware and replace ICs without changing parameter sets.
- Motor Module (Single-Axis, Double-Axis) — F07801 (motor overtemperature), F07900 (motor blocked), F30024 (24V supply fault). Encoder interface AD8302 failure, resolver excitation amplifier fault, braking resistor driver transistor failure.
- SINAMICS S210 single-axis — Safety function STO fault (F01611), encoder evaluation fault (F31100). Common on collaborative robot and linear axis applications.
Yaskawa Sigma-5 / Sigma-7 (SGDV / SGDH) Repair
Yaskawa drives are the backbone of Japanese-origin machinery across the Netherlands, Belgium, and Scandinavia:
- A.74 (Overload) — current sensor LEM module drift, U/V/W phase imbalance due to one IGBT gate resistor failure. We replace individual IGBTs in the output stage rather than the full power module.
- A.b1/A.b2 (Reference speed fault) — analog input op-amp failure on the control card; common on older SGDH drives from 2008–2015 vintage.
- A.C9 (Encoder communications error) — differential line driver IC on serial encoder interface failure; common after cable shield damage. We replace the SN75179 or equivalent IC.
- CPF00/CPF01 (Control power fault) — auxiliary SMPS failure inside the drive; we replace the PWM controller IC and optocoupler feedback chain.
Fanuc Alpha / Beta Servo Amplifier Repair
Fanuc servo amplifiers in CNC machines from Fanuc 0i, 16i, 18i, 30i, 31i, 32i series are found in machine shops across Italy, Czech Republic, Slovakia, and Poland:
- Alarm 9 (Overcurrent) — IGBT destruction in the U-phase output stage; we source matching Infineon or Toshiba IGBTs and rebuild the output bridge including snubber capacitors and gate resistors.
- Alarm 3 (DC link overvoltage) — braking chopper IGBT or braking resistor driver fault; commonly misdiagnosed as capacitor failure. We perform load testing after repair to verify regenerative braking function.
- Alarm 7 (Overspeed) — encoder interface SCI receiver IC failure on the axis card, not a motor fault. We replace the IC and re-qualify the encoder signal quality.
- Alarm 8 (Error excessive) — resolver-to-digital converter (RDC) IC drift on the Fanuc amplifier card; repair includes RDC replacement and recalibration against a reference resolver.
- PSM (Power Supply Module) faults — precharge relay driver transistor failure causing DC bus charge fault; input rectifier diode failure; input filter capacitor failure.
How to Ship Your Servo Drive
- Remove the drive from the cabinet (note: record all parameters first using Starter/SIMOTION Scout or Sigma-7 SigmaWin+ before removal)
- Pack in original packaging or use 5cm foam on all sides inside a double-wall cardboard box
- Attach a note with: model number, serial number, observed fault code, and your contact details
- Ship via DHL Express or DPD to our address — we confirm receipt same day
- You receive a diagnostic report within 24h of receipt and a repair quote
- On approval, repair is completed in 2–4 working days
- We return via DHL Express with tracking — transit time to most EU cities: 1–2 days
Pricing and Warranty
Siemens SINAMICS Power Module repair: €380–850. Control Unit repair: €280–580. Yaskawa SGDV/SGDH repair: €320–720. Fanuc Alpha/Beta amplifier repair: €340–780. Fanuc PSM repair: €420–950. Return courier to Germany, Austria, Netherlands, Belgium: included. Return to Italy, France, Scandinavia: €35 supplement. 12-month warranty on all repairs. No-fix no-fee guarantee.