What causes fault code PAL-STRETCH1 (Palletizer Integrated Stretch Wrapper — Ring Fault)?

Ring drive motor VFD faulted — overcurrent, overheat, or communication loss. Film roll empty — needs replacement. Film tail lost — film detached from the pallet during wrapping. Ring rotation obstructed — product or pallet board protruding into the ring path. Film pre-stretch unit jammed — rollers seized or film wrapped around the pre-stretch rollers

How do I fix fault code PAL-STRETCH1?

Check ring drive VFD for faults — clear and investigate. Load new film roll if empty — thread through pre-stretch rollers and attach to pallet. Check for obstructions in the ring rotation path — clear any protruding product or pallet material. Inspect pre-stretch rollers — clean off any wrapped film, verify rollers spin freely. Verify ring home position sensor — ring must be in the correct start position for the wrap cycle. Check film clamp/cut mechanism — verify it grabs film at the start and cuts at the end of the cycle

Palletizer Integrated Stretch Wrapper — Ring Fault

PAL-STRETCH1

Integrated stretch wrap ring or rotary arm on the palletizer wrapping station has faulted. Film is not being applied or the rotation mechanism has stopped.

medium palletizer packaging

palletizer stretch wrap ring film pre-stretch rotation

Probable Causes (ranked)

Ring drive motor VFD faulted — overcurrent, overheat, or communication loss
Film roll empty — needs replacement
Film tail lost — film detached from the pallet during wrapping
Ring rotation obstructed — product or pallet board protruding into the ring path
Film pre-stretch unit jammed — rollers seized or film wrapped around the pre-stretch rollers

Fix Steps

1 Check ring drive VFD for faults — clear and investigate
2 Load new film roll if empty — thread through pre-stretch rollers and attach to pallet
3 Check for obstructions in the ring rotation path — clear any protruding product or pallet material
4 Inspect pre-stretch rollers — clean off any wrapped film, verify rollers spin freely
5 Verify ring home position sensor — ring must be in the correct start position for the wrap cycle
6 Check film clamp/cut mechanism — verify it grabs film at the start and cuts at the end of the cycle

Field Trick

When film wraps around the pre-stretch rollers, don't just cut it off and restart. Stop and find out why — usually one roller is seized, making the film stick to it. Replace or free the seized roller, THEN clean the film off both rollers. Otherwise the film wraps again on the next cycle and you're right back where you started.

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