Siemens SINUMERIK 840D sl Operating Manual page 158

Alarm, error, and system messages
11.1 Displaying alarms
Acknowledgement symbols
Icon
158
1. Select the "Diagnosis" operating area.
2. Press the "Alarm list" softkey.
The "Alarms" window appears.
3. Position the cursor on an alarm.
...
4. Press the "Delete HMI alarm" softkey to cancel the alarm.
- OR -
Press the "Acknowl. alarm" softkey for alarms that require
acknowledgement.
Description
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" key.
Press the key provided by the manufacturer.
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Operating Manual, 11/2006, 6FC5398-6AP10-1BA0
HMI sl Universal