KUKA Error 1125 — ELECTRONIC PROBE FAULT
ErrorDisplayed as KSS01125 on KRC4 / KRC5 controllers
KUKA 1125 (“ELECTRONIC PROBE FAULT”): The probe supplies a zero signal. First check: Check that the probe is screwed on properly. Likely part: DSE (DSE digital servo electronics card).
Updated 2026-09-09 · LogrobotLM reference
Cause
The probe supplies a zero signal.
Effect
Stop via braking ramp. All active commands inhibited.
Troubleshooting
Check that the probe is screwed on properly. Check the connection of the PAL to the robot. Check the A3/DSE module.
Part to check / replace
KUKA 1125 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →