What causes fault code ASRS-005 (AS/RS Aisle Occupancy Fault)?

Personnel entered aisle through safety gate without proper lockout. Safety light curtain blocked — debris, spider web, or misalignment. Safety gate interlock switch stuck in open state. Maintenance mode not properly activated before entry. Safety scanner detecting reflection from new/moved object in aisle

How do I fix fault code ASRS-005?

Verify aisle is clear — visual confirmation required by authorized person. Check safety gate interlocks — close gate, verify switch contacts close. Inspect light curtains — clean lenses, check alignment, clear obstructions. If safety scanner, check for new reflective surfaces in aisle that weren't there before. Reset safety system per site lockout/tagout procedure. Do NOT bypass safety system — ever

AS/RS Aisle Occupancy Fault

ASRS-005

Safety system detected personnel or unauthorized presence in the crane aisle. Crane locked out until aisle is confirmed clear.

critical asrs

asrs safety aisle light curtain lockout

Probable Causes (ranked)

Personnel entered aisle through safety gate without proper lockout
Safety light curtain blocked — debris, spider web, or misalignment
Safety gate interlock switch stuck in open state
Maintenance mode not properly activated before entry
Safety scanner detecting reflection from new/moved object in aisle

Fix Steps

1 Verify aisle is clear — visual confirmation required by authorized person
2 Check safety gate interlocks — close gate, verify switch contacts close
3 Inspect light curtains — clean lenses, check alignment, clear obstructions
4 If safety scanner, check for new reflective surfaces in aisle that weren't there before
5 Reset safety system per site lockout/tagout procedure
6 Do NOT bypass safety system — ever

Field Trick

Safety light curtains catch spider webs constantly. A quick wipe with a dry cloth on both emitter and receiver sides clears 80% of aisle occupancy faults.

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