Siemens
Siemens SIMODRIVE 611 Module Repair — Mail-In
Component-level repair for Siemens SIMODRIVE 611 axis (LT) modules and 6SN1118 control cards running legacy Siemens CNC machines. Free evaluation, typical repairs $500–$1,400. Large infeed/NE modules (36kW+) require test capacity we do not claim — we say so instead of overselling.
Coverage: 6SN1123 LT axis modules · 6SN1118 control cards · small infeeds evaluated case-by-case
✓Fixed — or it's free
Unrepairable units are refunded; evaluations cost $0
✓24-month warranty
Every repair covered, parts and labor
✓3–5 business days bench time
Rush (1–2 day) and emergency service available
✓Program preserved
Your application and settings stay in the unit
Symptoms this repair fixes
- ✓Axis module faults and dead modules
- ✓Control-card failures (the frequent separate failure on 611 racks)
- ✓Trips after motor/cable events
Honest limits
- ✕Large NE/infeed modules 36kW+ — full validation needs three-phase load capacity; we decline these at launch rather than ship an under-tested repair
What you get
- ▸Free evaluation and firm quote
- ▸IGBT/power-stage replacement on axis modules
- ▸Control-card component repair
- ▸Full recap as standard
- ▸24-month warranty
Common part numbers we see
Part-number pages for this service
What to ship
- ▸The module (control card installed if it has one)
- ▸Fault/LED state + machine details
Full packing guidance: mail-in instructions.
Ship your unit to
USPS
Control Board Lab
PO Box 120241
Arlington, TX 76012
UPS / FedEx
Control Board Lab
1009 Oakwood Ln # 120241
Arlington, TX 76012
Write your RMA number on the outside of the box and include it on a note inside. Units over 50 lb (large VFDs, spindle drives, industrial PCs in enclosures) ship by freight — contact us before ordering and we will arrange dock-to-dock shipping.
Frequently asked questions
Why won't you take my big 611 infeed module?
Proving a 36kW+ infeed repair requires three-phase source and load capacity that our launch bench doesn't have — and shipping you an unproven repair on the module that feeds your whole rack isn't a risk we'll sell. We'll point you to options and take the axis modules and control cards, which we can fully verify.
Start with a free evaluation
Ship it in, get a firm quote, approve before any work — pay nothing if it can't be repaired.
The Fixed-or-Free Guarantee: if we can't repair it, you don't pay for the repair.
Call (817) 799-7332 · 📱 Text us a photo of your unit · Email repairs@controlboardlab.com