SIEMENS
2/15
Siemens D 31 · 2015
2
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Function
Highlights
Safety Integrated
Overview of Safety Integrated functions
Function
Activation
Underlying function
Reaction to
limit overshoot
External
setpoint input
effective
Encoder
required
License
required
Available in
Basic Functions
STO
• F-DI
• PROFIsafe
SBC
(if activated)
–
No
No
No
• CU240E-2
• CU240E-2 DP
• CU240E-2 PN
• CU240E-2 F
• CU240E-2 DP-F
• CU240E-2 PN-F
• CU250S-2
• CU250S-2 CAN
• CU250S-2 DP
• CU250S-2 PN
SS1 with
SBR
• F-DI
• PROFIsafe
Safe Brake Ramp (SBR)
during braking.
STO and SBC (if activated)
following expiry of the param-
eterized delay time or if the
speed falls below the mini-
mum speed limit
STO
No
No
No
• CU240E-2 F
• CU240E-2 DP-F
• CU240E-2 PN-F
• CU250S-2
• CU250S-2 CAN
• CU250S-2 DP
• CU250S-2 PN
SBC
• With STO
(directly or follow-
ing expiry of the
delay time)
–
–
No
No
No
• CU250S-2
• CU250S-2 CAN
• CU250S-2 DP
• CU250S-2 PN
Extended Functions
SLS
• F-DI
• PROFIsafe
–
STO, SS1
(can be
parameterized)
Yes
No
No
• CU240E-2 F
• CU240E-2 DP-F
• CU240E-2 PN-F
Yes
• CU250S-2
• CU250S-2 CAN
• CU250S-2 DP
• CU250S-2 PN
SDI
• F-DI
• PROFIsafe
–
STO, SS1
(can be
parameterized)
Yes
No
No
• CU240E-2 F
• CU240E-2 DP-F
• CU240E-2 PN-F
Yes
• CU250S-2
• CU250S-2 CAN
• CU250S-2 DP
• CU250S-2 PN
SSM
• Always active,
if configured
–
Signals that
the speed has
fallen below a
specified value
Yes
No
No
• CU240E-2 F
• CU240E-2 DP-F
• CU240E-2 PN-F
Yes
• CU250S-2
• CU250S-2 CAN
• CU250S-2 DP
• CU250S-2 PN
© Siemens AG 2014