Siemens SINUMERIK 828D Operating Manual page 468

Alarms, error messages, and system alarms
20.1 Displaying alarms
Acknowledgement symbols
Symbol
See also
Sorting, alarms, faults and messages (Page 471)
468
4. Press the key that is specified as acknowledgement symbol to delete
the alarm.
- OR -
Press the "Delete HMI alarm" softkey to cancel an HMI alarm.
- OR -
Press the "Acknowledge alarm" softkey to delete a PLC alarm of the
SQ type (alarm number as of 800000).
The softkeys are activated when the cursor is on the corresponding
alarm.
Meaning
Turn the unit off and back on (main switch), or press NCK POWER ON.
Press the <RESET> key.
Press the <ALARM CANCEL> key.
...
- OR -
Press the "Acknowl. HMI alarm" softkey.
Press the key provided by the manufacturer.
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
HMI sl Milling