1849

Common Causes

• Work-out unit up command issued before the spindle fully stopped
• Spindle rotation commanded with the work-out unit not at the lower end
• Work-out unit commanded with the tailstock quill, backup roller or chuck in a conflicting state
• XB/ZB axis or B-turret moved while work-out unit hand/position conditions were not met
• Work-out unit up/down commanded while axes move, the B-turret indexes, or the front door is not open

Troubleshooting Steps

1. 1Read the code number shown with the alarm: code 1 = Up command before the spindle completely stopped at the regular position.; code 2 = Spindle rotation with the work-out unit not at the lower end.; code 3 = Tailstock quill advance with the work-out unit not lowered.; code 4 = Up command with the tailstock quill not retracted.; code 5 = Up command with the backup roller not retracted.; code 6 = Up command while the spindle was moving.; code 7 = Spindle rotation with the work-out unit not lowered.; code 8 = Work-out unit left the lowered position while the spindle was moving.
2. 2Read the code to find the exact violation: 1 up command before spindle stopped at regular position; 2/7 spindle rotation with unit not lowered; 3 quill advance with unit not lowered; 4 up with quill not retracted; 5 up with backup roller not retracted; 6 up while spindle moving; 8 unit left lowered position during spindle motion.
3. 3Codes 9-24 cover hand/chuck/B-turret/door conflicts: 9 advance/retract with chuck closed; 10 chuck close with unit not retracted; 11 XB/ZB move conditions not met; 12 B-turret index with XB not at plus variable limit; 13 spindle rotation with hand not open; 14/24 up or down with chuck not opened; 15 turret index with hand not closed; 16/17 up position or front door conditions; 18 up/down during XB/ZB motion; 19 up during B-turret index; 20 hand not at unload position; 21/22 XB/ZB or B-turret with unit not down; 23 door close with unit not down.
4. 4Stop the spindle fully and confirm zero speed at the regular position before commanding the work-out unit up.
5. 5Sequence the work-out unit, chuck, tailstock quill, backup roller, XB/ZB axes, B-turret and front door in the order the code demands, waiting for each confirmation before the next command.
6. 6Re-run the unload sequence in single block, confirming each position switch (lower end, retracted, hand open/closed) before issuing the next work-out unit command.