How do I fix and clear Mazak alarm 420?

Check and correct the data settings. In case 4, this alarm indicates that the tool model name the operator has attempted registering is already present under the same tool type (such as: drill, end mill, turning tool, or grooving tool) in other systems. Specify another tool model name. Clearing procedure: Tap alarm clear button.

ALARMSMazatrol Assistant

NOTICEAlarm code

420

SAME DATA EXISTS

Q: What does Mazak alarm 420 mean?

Mazak alarm 420 is "SAME DATA EXISTS". An attempt has been made to input the same data as that which has already been registered. 1. Pocket number in the TOOL LAYOUT display. 2. Machining-program number (changed) 3. Machining priority number 4. Tool model name 5. Tool data suffix Error type: Operation — wrong key or incorrect operation. Machine state: Operation continued — machine still running.

What it means

An attempt has been made to input the same data as that which has already been registered. 1. Pocket number in the TOOL LAYOUT display. 2. Machining-program number (changed) 3. Machining priority number 4. Tool model name 5. Tool data suffix

What to do

1Check and correct the data settings.
2In case 4, this alarm indicates that the tool model name the operator has attempted registering is already present under the same tool type (such as: drill, end mill, turning tool, or grooving tool) in other systems.
3Specify another tool model name.

Codebook — decoded

AError typeOperation — wrong key or incorrect operation

LStop statusOperation continued — machine still running

SClearingTap alarm clear button

Still faulted after these steps? Do not restart under load — ask the Mazatrol assistant.

Still stuck? Ask the Mazatrol assistant →