HAAS® MOCON Board Exchange & Repair
Break down today. Make it work again tomorrow.
We lend you a working MOCON within 24 hours, fit it and prove the machine. You keep the loaner while we repair or replace yours — fixed pricing, same warranty as new.
What the MOCON does
The MOCON (motion controller) is the board that turns the program into axis motion. It closes the position loop for every axis, talks to the servo amplifiers and reads the encoders. When it dies nothing moves — and because it sits between the main control and the drives, a MOCON failure can look like a drive, cable or encoder problem.
Signs it has failed
- Alarm 101 COMM. FAILURE WITH MOCON / MOCON MEMORY FAULT
- Alarm 791 COMM. FAILURE WITH MOCON2 on multi-MOCON machines
- All axes dead or SERVOS OFF (alarm 102) that returns on every reset
- Following-error alarms on several axes at once
- Control boots but the position display never updates
Related alarm codes
If one of these is on your screen, this is likely the part — each links to our plain-English guide.
- Alarm 101 — comm failure with mocon mocon memory fault
- Alarm 791 — comm failure with mocon2
- Alarm 102 — servos off
Why they fail
Static damage during a previous repair, a failing power supply feeding it dirty rails, or plain age. Several hardware revisions exist and not every MOCON fits every machine, so we’ll ask for your machine serial and software version on the call before we set off.
Part numbers we cover
How Exchange & Repair works
- You call, we quote on the spot. Phone diagnosis to confirm the failed part. We tell you honestly whether we hold that unit, the fixed swap-in fee, and the fixed replacement price if yours can’t be repaired.
- We bring the part within 24 hours. An engineer arrives with the loaner, fits it, proves the machine and takes your original away. You’re cutting again the same day.
- You keep the loaner while we repair yours. Proper diagnosis at the bench, no time pressure. If we repair it, we swap back at your next service. If we can’t, you keep the loaner and pay the fixed replacement price you were quoted on day one.
Fixed pricing
One fixed swap-in fee plus a fixed price list for every replacement part, sent to you the moment you call. No hidden costs. If we repair your original, that’s all you pay.
Same warranty as a new HAAS® part
Every part we exchange carries the warranty HAAS Automation, Inc. gives on the equivalent new component — parts and labour, in writing, from the day we fit it.
A note on this guide. Symptoms and part numbers vary by HAAS® machine model and software revision. This guide is written to help you narrow down a fault and understand your options — it is not a substitute for a qualified engineer’s diagnosis. HAAS® is a registered trademark of Haas Automation, Inc. Squidex Solutions Ltd is an independent service provider.