Acknowledgment Using Power On; Extended Acknowledgment (Deselection Of Sto/Ss1); Additional Acknowledgment When The Safety Message Buffer Is Inactive - Siemens SINUMERIK MC Commissioning Manual

7.9.4

Acknowledgment using POWER ON

Safety faults can also be acknowledged (as with all other faults) by switching the drive unit off
and then on again (POWER ON).
If this action has not eliminated the fault cause, the fault is displayed again immediately after
power-up.
7.9.5

Extended acknowledgment (deselection of STO/SS1)

For external drives, the extended alarm acknowledgment can be used as alternative to safety-
relevant acknowledgment. To do this, the extended alarm acknowledgment must be activated
in the safety configuration of the drive.
Basic procedure
If STO or SS1 is selected/deselected - and if p9507.0 is set = 1 - then the safety messages are
automatically withdrawn.
● Remove the cause of the fault.
● Deselect "Safe Torque Off" (STO) or "Safe Stop 1" (SS1).
● Acknowledge the fault.
If, in addition to the "Basic Functions via terminals", the "Extended Functions" are also enabled,
then acknowledgment is also possible by selecting/deselecting STO via PROFIsafe.
If the safety commissioning mode is exited when the safety functions are switched off (p0010 ≠
95 when p9601 = 0), then all safety faults can be acknowledged.
Once safety commissioning mode has been selected again (p0010 = 95), all the faults that were
previously present reappear.
7.9.6

Additional acknowledgment when the safety message buffer is inactive

If you are using Basic Functions or the safety message buffer is deactivated (p3117 = 1), then
the safety messages are saved to the standard fault buffer or to the standard alarm buffer.
These messages require a safety-relevant acknowledgment, even when the safety message
buffer is deactivated.
In addition to safety-relevant acknowledgment, safety messages in the standard fault buffer
require acknowledgment using PROFIdrive signal "Acknowledge faults" (PROFIdrive RESET).
For NC axes, a PROFIdrive RESET corresponds to a machine control panel RESET.
The required PROFIdrive RESET is displayed in the SINUMERIK ONE Commissioning Tool
with NC alarm 25201.
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB
Diagnostics
7.9 Acknowledging
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