Communication Failure Via Profisafe Or With Tm54F; Stop B As Response To Communication Failure With Profisafe Control - Siemens SINAMICS S120 Function Manual

Control of the safety functions

5.5 Communication failure via PROFIsafe or with TM54F

5.5 Communication failure via PROFIsafe or with TM54F
Factory setting for the response to communication failure
In the following cases, the drive responds with a STOP A.
● PROFIsafe communication to the higher-level control has failed.
● DRIVE-CLiQ communication with the TM54F has failed.
5.5.1

STOP B as response to communication failure with PROFIsafe control

If, for a communication failure, the axis coasting down can result in subsequent damage, as
response to the communication failure, instead of a STOP A, you can select that the axis is
stopped along a ramp.
Requirement
You have released the Safety Integrated Extended or Advanced Functions.
Communication failure
In this context, communication failure can mean the following:
● Interruption or disturbance in PROFIsafe communication
● The higher-level controller (F-CPU) is in the STOP state
Drive response
Parameter p9612 defines the drive stop response when PROFIsafe communication fails:
● p9612 = 0: STOP A
● p9612 = 1: STOP B
Note
For the selected STOP B stop response, in order to ensure that the OFF3 ramp is actually
maintained, when just using the Safety Basic Functions, the following must be carefully
observed:
• The selected transition time from STOP F to STOP A (p9658) must be greater than or
equal to the SS1 delay time (p9652).
• If a higher-level control system responds to the drive fault by withdrawing the controller
enable signals, for faults F01611 and F30611, the message type must be changed to
alarm (p2118, p2119).
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Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated