Siemens SINAMICS V90 User Manual

Safety Integrated function
8.2 General information about SINAMICS Safety Integrated
SINAMICS V90, SIMOTICS S-1FL6
306 Operating Instructions, 04/2019, A5E36037884-007
8.2
General information about SINAMICS Safety Integrated
Safety Integrated function - STO
The Safe Torque Off (STO) is a safety function that prevents the drive from restarting
unexpectedly, in accordance with EN 60204-1:2006 Section 5.4.
The STO function is in conformance with the IEC 61508, SIL2 standard, in the operating
mode with a high demand, Category 3 and Performance Level d (PL d) acc. to ISO 13849-
1:2015, as well as IEC 61800-5-2.
Controlling the STO Function
The STO function can be controlled via terminals. For the details about STO wiring, refer to
the chapter "24 V power supply/STO (Page 162)".
8.3
System features
8.3.1
STO functional safety data
The STO functional safety data of SINAMICS V90 is as follows:
Applied standards
IEC 61508, IEC 62061, ISO 13849-1
Type
A
Safety Integrity Level (SIL) 2
Hardware Fault Tolerance (HFT)
1
Probability of Failure per Hour (PFH) 5 × 10
-8
per hour
8.3.2
Certification
The safety function of the SINAMICS V90 drive system meets the following requirements:
● Category 3 according to ISO 13849-1:2015
● Performance Level (PL) d to ISO 13849-1:2015
● Safety integrity level 2 (SIL 2) to IEC 61508
In addition, the safety function of SINAMICS V90 has been certified by independent institutes.
An up-to-date list of certified components is available on request from your local Siemens
office.

Siemens SINAMICS V90 Specifications

General

Power Range	0.05 kW to 7.0 kW
Protection Class	IP20
Communication	USS/Modbus RTU
Feedback	Incremental encoder
Input Voltage	1AC 200 V to 240 V, 3AC 380 V to 480 V
Control Modes	Position, Speed, Torque
Operating Temperature	0 °C to +40°C
Storage Temperature	-40°C to +70°C
Relative Humidity	5% to 95% (non-condensing)
Altitude	Up to 1000 m above sea level