Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual page 227

Function table
Fill in the following table for your machine.
Mode of operation Safety device
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Table 7- 40 Example:
Mode of operation Safety device
Production Protective door closed and
locked
Protective door unlocked
Setup Protective door closed and
locked
Protective door unlocked
The following is checked during the function test:
● The hardware is functioning properly.
● The digital inputs of the inverter are assigned correctly for the safety function.
● The PROFIsafe address of the inverter is set correctly.
● The safety function is parameterized correctly.
● Routine for forced dormant error detection of the switch-off signal paths on the Control
Procedure
Table 7- 41 "Safe Torque Off" (STO) function
No.
1. Initial state:
The inverter is in "Ready" state (p0010 = 0).

The inverter indicates neither faults nor alarms for safety functions (r0945, r2122, r2132).

STO is not active.

Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Unit.
Note
Perform the acceptance test with the maximum possible speed and acceleration.
7.10 Safe Torque Off (STO) safety function
Drive Controlling the safety
function
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Drive Controlling the safety
function
1 -
2 -
1 F-DI 0
2 PROFIsafe
1 -
2 PROFIsafe
1 F-DI 0
2 PROFIsafe
Description
Functions
Status of the safety
function
...
...
...
...
Status of the safety
function
not active
not active
STO active
STO active
not active
STO active
STO active
STO active
Status
227