
Functions
7.10 Safe Torque Off (STO) safety function
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
235
Function table
Fill in the following table for your machine.
Mode of operation Safety device Drive Controlling the safety
function
Status of the safety
function
… … …
…
…
…
…
…
… … …
…
…
…
…
…
Table 7- 53 Example:
Mode of operation Safety device Drive Controlling the safety
function
Status of the safety
function
Protective door closed and
locked
1
2
-
-
not active
not active
Production
Protective door unlocked 1
2
F-DI 0
PROFIsafe
STO active
STO active
Protective door closed and
locked
1
2
-
PROFIsafe
not active
STO active
Setup
Protective door unlocked 1
2
F-DI 0
PROFIsafe
STO active
STO active
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