Siemens SINUMERIK 840D sl Function Manual page 291

Clearing criterion
For each alarm, you must specify how the alarm can be cleared again. The following clearing
criteria are possible:
• POWERONCLEAR
• RESETCLEAR
• CANCELCLEAR
• NCSTARTCLEAR
• CLEARHIMSELF
• BAGRESETCLEAR
• NCKRESETCLEAR
Alarm display control
The scope of the alarm outputs can be modified using machine data.
• MD11410 $MN_SUPPRESS_ALARM_MASK (mask for suppressing special alarm
• MD11411 $MN_ENABLE_ALARM_MASK (mask for enabling special alarm outputs)
For details of this machine data, please refer to chapter 4.
Basic logic functions: Diagnostic tools (D1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
The alarm is cleared by switching the control off and then on again.
When the Reset key is pressed, the alarm is cleared in the channel in which it occurred.
The alarm is cleared in any channel when the Cancel key is pressed. The alarm can also
be cleared by means of an NC start or Reset.
The alarm is cleared in the channel in which the alarm occurred by starting a program.
The alarm can also be cleared by means of a Reset.
The alarm is not cleared by an operator input or action, but explicitly by a "clearAlarm"
programmed in the NCK source code.
The alarm is cleared by a "BAGRESETCLEAR" command or by executing a Reset in
every channel of this mode group.
The alarm is cleared by an "NCKRESETCLEAR" command or by executing a Reset in
every channel.
outputs)
Detailed description
2.1 Description of diagnostic tools
9