Siemens CU240B-2 Function Manual

6.3.3 Response to a discrepancy when STO is active
The inverter responds with the active safety function STO to a discrepancy at the fail-safe
digital input.
The inverter response depends on the wiring and the setting of the inverter:
● You are using the basic functions according to SIL 2 → case 1.
● You are using the extended functions → case 2.
● You are using the "STO via Power Module terminals" function → Case 3.
Case 1: Response of the drive for STO of the basic functions
You have selected one of the following settings:
● Basic Functions via onboard terminals
● Basic Functions via PROFIsafe and onboard terminals
● Extended Functions via PROFIsafe and Basic Functions via onboard terminals
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Figure 6-10 Inverter response for discrepancy of the input signal for STO (example: Cable break in the
channel of processor P1)
Operation
6.3 Safe Torque Off (STO)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
226 Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English