SRVO-079: Stroke exceeded during press
Spot-welding servo gun alarm: during squeeze (SPOT or PRESS_MOTN), the gun tip traveled past its stroke limit - the gun over-extended, usually because the tips have worn down far enough that 'closed' is farther than the limit allows.
What it means
Spot-welding servo gun alarm: during squeeze (SPOT or PRESS_MOTN), the gun tip traveled past its stroke limit - the gun over-extended, usually because the tips have worn down far enough that 'closed' is farther than the limit allows.
Common causes
Ranked by what technicians most often find, most likely first.
- Worn gun tips - the gun must close farther than its configured stroke to make contact.
- Incorrect master position or close stroke limit values for the gun.
How to fix it
- Check the gun's master position and close stroke limit settings; correct them if wrong.
- If the settings are right, install new tips so the gun operates within its stroke during pressuring.
- Chronic recurrence means tip-change scheduling and tip-wear compensation deserve a look.