Basic Functions

STO

• EP terminals on the power unit or CUA31/CUA32 and a DI on the Control Unit
• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe

SBC
(if activated)

–

No

No

No

SBC

• With STO (immediately or following expiry of the delay time with SS1)

–

–

–

No

No

SS1

Time-driven

• EP terminals on the power unit or CUA31/CUA32 and a DI on the Control Unit
• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe

STO following expiry of the parameterized delay time, SBC (if activated)

STO

Parameterizable

No

No

Extended Functions

SS1 with SBR/SAM

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe

Safe Acceleration Monitor (SAM) or Safe Brake Ramp (SBR) during braking. STO and SBC (if activated) following expiry of the parameterized delay time or if the speed falls below the minimum speed limit

STO

Parameterizable

No

Yes

SS2

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe

Safe Acceleration Monitor (SAM) during braking. Following expiry of the parameterized delay time SOS

SS1 в†’ STO

No

Yes

Yes

SLS encoderless

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe
• Continuously activated

–

STO, SS1 (can be parameterized)

Yes

No

Yes

SLS

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe
• Continuously activated

–

STO, SS1, SS2 or SOS (can be parameterized)

Yes

Yes

Yes

SOS

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe

–

SS1 в†’ STO

Yes

Yes

Yes

SSM

• Always active, if configured

–

Signals that the speed has fallen below a specified value (safe checkback signal switches to high)

Yes

No

Yes

SDI

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe
• Continuously activated

–

STO, SS1, SS2 or SOS (can be parameterized)

Yes

No

Yes

SLP

• F-DI on TM54F
• F-DI on CU310‑2
• PROFIsafe

–

STO, SS1, SS2 or SOS (can be parameterized)

Yes

Yes

Yes

SP

• Always active, if configured

–

–

Yes

Yes

Yes

SBT

• Safety Control Channel
• BICO signals
• for test stop selection

–

Signals test result. Warning if test fails

Yes

Yes

Yes