3.2
Basic functions and extended functions
The safety functions integrated in the drive are split up according to basic functions and
extended functions.
Safety functions integrated in the drive
Basic functions
Extended functions
The basic functions prevent hazardous motion us‐
ing one or several of the following measures:
● The energy feed to the motor is safely switched
off
● The energy feed to the motor holding brake is
safely switched off
The following basic functions are available:
● Safe Torque Off (STO)
● Safe Brake Control (SBC)
● Safe Stop 1 (SS1) without speed monitoring
Each of the inverters described in this manual has
one or several of the basic functions.
Extended functions include several basic func‐
tions and additional functions to safely monitor the
motor speed:
● STO and SBC basic functions
● Safe Stop 1 (SS1) with speed monitoring
● Safely Limited Speed (SLS)
● Safe Direction (SDI)
● Safe Speed Monitor (SSM)
Whether an inverter has extended functions gen‐
erally depends on the Control Unit hardware. The
corresponding inverters have an "F" at the end of
the product name, e.g. Control Unit CU240E‑2 F.
For SINAMICS G120 with a CU250S‑2 Control
Unit, you require a license for the extended func‐
tions.
Table 3-1
Inverters with safety functions integrated in the drive
Inverter
Basic functions
Extended functions
STO
SS1, SBC
SS1, SDI, SLS
SSM, SLS with switch‐
able SLS levels
SINAMICS G110M
Available
with all prod‐
uct versions
---
1)
---
SINAMICS G120C
Available
with all prod‐
uct versions
---
---
SINAMICS G120
Available
with all
CU240E‑2
and
CU250S‑2
Control Units
Available
with all
CU250S‑2
Control Units
Available with the fol‐
lowing Control Units:
CU240E-2 F
CU240E-2 DP-F
CU240E-2 PN-F
CU250S-2
2)
CU250S-2 DP
2)
CU250S-2 PN
2)
CU250S-2 CAN
2)
Available with the fol‐
lowing Control Units:
CU240E-2 DP-F
CU240E-2 PN-F
CU250S-2 DP
2)
CU250S-2 PN
2)
Description
3.2 Basic functions and extended functions
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
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Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD