Buffer For Faults And Alarms - Siemens Sinamics S110 Function Manual

Acknowledgment of faults
The list of faults and alarms specifies how each fault is acknowledged after the cause has
been remedied.
1. Acknowledgment of faults by "POWER ON"
2. Acknowledgment of faults by "IMMEDIATE"
3. Acknowledge faults with "PULSE INHIBIT"
5.3.2

Buffer for faults and alarms

Note
The contents of the fault buffer are saved to non-volatile memory when the Control Unit is
powered down, i.e. the fault buffer history is still available when the unit is powered up again.
NOTICE
The entry in the fault/alarm buffer is made after a delay. For this reason, the fault/alarm
buffer should not be read until a change in the buffer is also recognized (r0944, r2121) after
"Fault active"/"Alarm active" is output.
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
– Switch the drive on/off (POWER ON)
– Via PROFIBUS control signal
STW1.7 (reset fault memory): 0/1 edge
Set STW1.0 (ON/OFF1) = "0" and "1"
– Via external input signal
Binector input and interconnection with digital input
p2103 = "Requested signal source"
Across all of the drive objects (DO) of a Control Unit
p2102 = "Requested signal source"
– The fault can only be acknowledged with a pulse inhibit (r0899.11 = 0).
– The same possibilities are available for acknowledging as described under
acknowledge IMMEDIATELY.
Note
The drive cannot resume operation until all active faults have been acknowledged.
Diagnostics
5.3 Fault and alarm messages
103