Technical support · KUKA KRC2 and KRC2 ed05
KUKA KRC2 technical answers
Six real KRC2 controller problems, solved step by step and verified against the official KUKA manuals, with document and page cited. The full answers are published on Robotic Welding Cells, the refurbished-cell catalogue I launched.
Faults and adjustments solved
- 01
KRC2 · DSE-RDW inconsistent: serial/PID stuck at 0 on the RDC
What the RDC EEPROM stores, how to test the X21/X31 link and when the board is really faulty.
Read the full answer ↗ - 02
KRC2 · Recalibrating a rotary table: mathematical coupling step by step
TCP, root point and offset base BASE_DATA[17..22], and why not to edit $MACHINE.DAT.
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KRC2 · 'Safety circuit for drives not ready': find the open ESC signal
Use the ESC diagnosis to locate the open safety signal at X11 before swapping parts.
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KRC2 · Drive bus error on all axes: it's the shared ring, not the motors
Isolate the MFC–KSP–KSD Interbus ring node by node instead of swapping the drives.
Read the full answer ↗ - 05
KRC2 · KSD servo-drive fault: module or motor/cable?
A swap test tells the module from the motor or cable in minutes, before buying parts.
Read the full answer ↗ - 06
KRC2 · Low battery (accu): buffering fault and mastering-loss risk
How to replace both battery blocks and when you actually need to re-master.
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Got a KRC2 with an error that won't go away?
Send the question with robot model, software version and a photo of the message. Those with a verifiable solution get published.
Who answers
Alessandro Tenti
Sales & Marketing Director · EUROBOTS
13 years at EUROBOTS: I started in production overhauling KUKA, ABB and FANUC robots and now run sales. These are the answers I give on the phone every week.
Reviewed: September 2026 · LinkedIn · +34 647 044 924 · [email protected]
Which part, which cycle, which space?
With that I can tell you within 24 working hours which robots are available and an indicative price. In Spanish, Italian, French or English.