FANUC Alarm SRVO-010 — SERVO Belt broken
Error- Hardware
- robot signals and connection cable
- Controllers
- R-J3iB / R-30iA
- FANUC class
- SERVO
- Hardware family
- FANUC brake, fuse, robot signal and position error alarms
FANUC SRVO-010 (“SERVO Belt broken”): The belt broken robot digital input (RDI7) is asserted. First check: 1. If the belt is found to be defective in any way, repair it and then press the RESET key.
Updated 2026-10-22 · LogrobotLM reference
Description
The belt broken robot digital input (RDI7) is asserted.
Remedy
1. If the belt is found to be defective in any way, repair it and then press the RESET key. 2. When the belt is found to be normal, the signal RDI[7] in the robot connection cable might be abnormal. Check the cable. 3. Check the system variable $PARAM_GROUP.$BELT_ENABLE.
Field diagnosis
The robot input dedicated to belt breakage is active.
What to check
- Inspect the belt and repair it; if it is sound, the corresponding RDI input in the robot connection cable is faulty.
- The monitoring only exists on models where it is enabled.
- Note: Concerns belt-driven robots (the wrist of some models).
Related codes
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 →