Sharp SW-120NC Instruction Manual page 50

Error
Error Description
Code
M300 Front vises not clamping
M301 Rear vises not clamping
M303 Lower limit switch error
M304 Hydraulic motor not starting
M306 Broken blade detected
M308 Left safety door abnormal
M309 Right safety door abnormal
M312 Quick approach bar abnormal
M313 OL1 abnormal
M314 OL2 abnormal
M315 OL3 abnormal
M316 Saw bow upper limit abnormal
M352 Front vise clamping error
M357 Saw bow descending error
M358 Saw bow ascending error
M361 No material
M363 PLC battery voltage too low
4‐16
Solution
Check if the queen valve works
Check if the queen valve works
Check if the lower limit switch works
Check if the hydraulic motor works
1. Check if the speed switch works
2. Check if the blade is broken
1. Check if the left safety door is shut properly
2. Check if the left safety door limit switch works
1. Check if the right safety door is hut properly
2. Check if the right safety door limit switch works
Check if the quick approach limit switch works
Check if the blade motor overload relay has tripped
Check if the hydraulic motor overload relay has tripped
Check if the coolant pump motor overload relay has tripped
Check the upper limit switch works
1. Place new material
2. Check if the vise queen valve works
3.Check if the "no material parameter" is too low
1. Check if the descend solenoid valve is stuck
2. Check the quick approach bar works
3. Check if the quick approach bar limit switch works
1. Check if the ascend solenoid valve is stuck
2. Check the quick approach bar works
3. Check the quick approach bar limit switch works
1. Place new material
2. Check if the vise queen valve works
3.Check if the "no material parameter" is too low
Replace PLC battery