What causes fault code PAL-SLIP1 (Palletizer Slip Sheet Dispenser — Feed Fault)?

Slip sheet magazine empty — needs reloading. Vacuum cups on the slip sheet picker worn or leaking — cannot grip sheet. Slip sheets sticking together — static, humidity, or sheet quality issue. Slip sheet picker alignment off — not centered over the magazine. Compressed air supply low — vacuum generator not producing adequate vacuum

How do I fix fault code PAL-SLIP1?

Reload slip sheet magazine — verify correct sheet size and material. Inspect vacuum cups — replace if worn, cracked, or deformed. If sheets are sticking together, fan the stack before loading — or install a sheet separator/air knife. Check vacuum level at the pickup cups — minimum 18 inches Hg for cardboard sheets. Verify picker arm alignment — center over the magazine, correct height for pickup. Check air pressure to the vacuum generator — minimum 60 PSI typically required

Palletizer Slip Sheet Dispenser — Feed Fault

PAL-SLIP1

Slip sheet (tier sheet) dispenser cannot pick or place a slip sheet between pallet layers. Slip sheets are not dispensing or are double-feeding.

low palletizer

palletizer slip sheet tier sheet vacuum dispenser magazine

Probable Causes (ranked)

Slip sheet magazine empty — needs reloading
Vacuum cups on the slip sheet picker worn or leaking — cannot grip sheet
Slip sheets sticking together — static, humidity, or sheet quality issue
Slip sheet picker alignment off — not centered over the magazine
Compressed air supply low — vacuum generator not producing adequate vacuum

Fix Steps

1 Reload slip sheet magazine — verify correct sheet size and material
2 Inspect vacuum cups — replace if worn, cracked, or deformed
3 If sheets are sticking together, fan the stack before loading — or install a sheet separator/air knife
4 Check vacuum level at the pickup cups — minimum 18 inches Hg for cardboard sheets
5 Verify picker arm alignment — center over the magazine, correct height for pickup
6 Check air pressure to the vacuum generator — minimum 60 PSI typically required

Field Trick

Slip sheets stick together in humid environments. Install a small fan blowing across the top of the slip sheet magazine to keep the top sheets dry and separated. A $20 fan prevents most double-feed issues in humid climates or seasonal humidity changes.

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