Operating instructions

Commissioning
5.5 Commissioning using the BOP
Control Units CU240S
80 Operating Instructions, 10/2007, A5E00766042B AC
5.5.5 Commissioning the Fail-Safe Functions
Available fail-safe functions
● Safe Torque Off (STO)
● Safe Stop 1 (SS1)
● Safely Limited Speed (SLS)
Command source for fail-safe functions
As command source for the fail-safe signals STO, SS1 and SLS either the fail-safe terminals
(60 … 63) or PROFIsafe can be used (see p9603 and p9803).
WARNING
PROFIsafe address
To run PROFIsafe, the PROFIsafe address (P9810) must be set first. The default setting
(P8910 = 0) is an invalid address.
The PROFIsafe address must be changed in P9810 and in the higher level control system
(for example, HW Config in SIMATIC S7) otherwise fault F1640 will occur.
Note
Via terminals two of the three fail-safe functions (STO, SS1 and SLS) can be used. Via
PROFIsafe all three functions are available.
Commissioning parameters regarding fail-safe functions
Parameters regarding fail-safe functions can only be accessed on a Control Unit with fail-
safe functions, on a Standard CU this parameters are not available. For safety reasons
parameters are handled by pairs and stored on two separate processors within the CU with
fail-safe functions.
When commissioning of fail-safe functions is completed, checksums for each processor data
are created. These checksums are permanently compared. If they differ, the inverter initiates
a latched safe torque off (LSTO) state and stops the system.
The access level of the fail-safe function parameters is 3, therefore set P0003 = 3, when
using a BOP.
To enter the commissioning mode for fail-safe functions set parameter P0010 = 95.
When the safety commissioning mode is initiated a password must be set in parameter
P9761. The default password for the system is 12345, it is highly recommended that this
password is changed to ensure complete security of the fail-safe function parameters. More
detailed description of this process is given in the following flow charts.
The commissioning process of fail-safe functions would normally be accomplished with the
use of either the STARTER software or the optional Basic Operator Panel (BOP).