7.8
Configuring the fault, message and alarm buffer
7.8.1
General information on the fault buffer and safety message buffer
In addition to the standard fault buffer and the standard alarm buffer, a SINAMICS S120 drive
has its own safety message buffer for safety-related messages for Safety Integrated Extended
Functions:
● Messages for Extended Functions are displayed in the safety message buffer.
● You must enable SIC/SCC for the appropriate axes in MD39750.
● To acknowledge messages in the safety message buffer, safety-relevant acknowl‐
edgment is required - and possibly also acknowledgment with PROFIdrive RESET
● Messages for Basic Functions or for external drives without an NC axis assignment,
cannot be saved to the safety message buffer.
● When using external drives without NC axis assignment, then you must deactivate the
safety message buffer (Page 336).
● The response when saving safety-relevant messages relating to Basic Functions cor‐
responds to the response for a deactivated safety message buffer (see below).
● If the safety message buffer is deactivated, then safety-relevant messages are saved in
the standard fault and/or alarm buffer.
● For safety-related messages in the fault and alarm buffer, in the SINUMERIK ONE
Commissioning Tool, specific reference is not made to the safety-relevant acknowl‐
edgment required.
Safety-relevant alarms are displayed in the SINUMERIK ONE Commissioning Tool in
the standard alarm list ("MENU SELECT > Diagnostics > Alarms"); however, they
require safety-relevant acknowledgment.
● The messages require additional acknowledgment: For an entry in the fault buffer, in
addition alarm 25201 ("Drive fault") is output, and the drive message requires a safety-
relevant acknowledgment as well as also an acknowledgment via PROFIdrive
7.8.2
Configuring the standard alarm buffer
The standard alarm buffer is automatically activated when you configure the safety mode.
This alarm buffer is required for safety-related standard warnings (Axxxx).
The display of safety-related standard warnings cannot be activated independently of the
display of other standard warnings.
Diagnostics
7.8 Configuring the fault, message and alarm buffer
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB
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