Robotics in Manufacturing
SRVO-076

SRVO-076: Tip Stick Detection

The servo software detected an abnormal load at the very start of motion - classically a welded spot-gun tip stuck to the part, hence the name.

What it means

The servo software detected an abnormal load at the very start of motion - classically a welded spot-gun tip stuck to the part, hence the name. Same detection math as Collision Detect, aimed at the moment the robot first pulls away.

Common causes

Ranked by what technicians most often find, most likely first.

  1. Welding tip genuinely stuck to the workpiece (spot welding cells).
  2. Anything on the SRVO-050 Collision Detect cause list - payload data, external force, brake drag, mechanics.
  3. Note: unlike SRVO-050, the tip-stick threshold canNOT be adjusted from the DISTURB screen.

How to fix it

  1. Inspect the gun tip and part - free the stick and address the weld schedule if tips keep sticking.
  2. Otherwise work the SRVO-050 remedy list: verify payload settings, check for binding, warm up after cold idle, inspect brakes and mechanics on a repeat-offender axis.

Quick facts

Category
Servo
Affected series
R-30iB; R-30iB Mate; R-30iB Plus; R-30iB Mate Plus
Alarm family
SRVO

Related codes

Verified against FANUC documentation (B-83284EN-1).Last reviewed: 2026-07-09.Editorial process