Siemens SINAMICS S120 Function Manual page 418

Appendix
A.5 Stop versions
STOP B
The drive is braked at the current limit under speed control and brought to a safe standstill
(SOS) (corresponds to a Stop Category 1 according to EN 60204-1, without electrical
isolation).
Application
● E.g. when SOS responds
STOP C
The drive is braked at the current limit under speed control and brought to a safe operating
stop (corresponds to a Stop Category 2 according to EN 60204-1).
A STOP C followed by a STOP A is normally selected in the case of an emergency stop
because this is the quickest way of stopping a drive.
Application:
● Operator protection
STOP D
The drives are braked together in a path-related (interpolatory) way on the contour and
brought to a safe operating stop (SOS).
Application:
● Protection for tool and workpiece (machine protection)
STOP E
The drives are braked together, including a jerk motion during which the tool and workpiece
are separated from one another, path-related and brought to a safe operating stop.
Application:
● Machine protection
STOP F
The STOP F is permanently assigned to the result and data cross-check and cannot be
changed by the user.
If a discrepancy is found in the monitoring channels of Safety Integrated, a STOP F is
triggered.
Depending on the parameter assignment, a STOP A or STOP B response is triggered.
Applications:
● Detection of errors during the crosswise data and result comparison
● Detection of communication errors between SINUMERIK and the drive
● Detection of encoder errors
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Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated