Siemens SINUMERIK 840D sl Function Manual page 56

Safety Functions Integrated in the Drive
4.1 General information about SINAMICS Safety Integrated
Checking the checksum
For each monitoring channel, the safety parameters include one parameter for the
actual checksum for the safety parameters that have undergone a checksum
check.
During commissioning, the actual checksum must be transferred in the corre-
sponding parameters of the specified reference checksum. This can be done for all
checksums of a drive object at the same time with parameter p9701.
Basic functions
S r9798 SI actual checksum SI parameters (Control Unit)
S p9799 SI reference checksum SI parameters (Control Unit)
S r9898 SI actual checksum SI parameters (Motor Module)
S p9899 SI reference checksum SI parameters (Motor Module)
Each time the system boots, the actual checksum is calculated using the safety
parameters and then compared with the specified reference checksum.
If the actual and specified reference checksums are different, fault F01650 or
F30650 is output and an acceptance test requested.
Safety Integrated versions
The safety software versions on the Control Units and on the Motor Modules have
their own version ID.
For the basic functions:
S r9770 SI version, drive–autonomous safety functions (Control Unit)
S r9870 SI version (Motor Module)
Warning
!
From SINAMICS SW2.5 onwards, the following applies:
In a system configuration, the firmware versions of the DRIVE–CLiQ components
can only differ from the versions on the CF card, if either
a) the automatic upgrade/downgrade (parameter p7826) is deactivated, or
b) components with a new firmware version can no longer be downgraded to the
status of the version available on the CF card.
Scenario a) is not permitted when Safety Integrated is used. The automatic
upgrade/downgrade must not be disabled when Safety Integrated is used.
(automatic firmware update (p7826) must be equal to 1)
Scenario b) is only permissible if this combination has been explicitly approved by
the manufacturer.
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
© Siemens AG 2008 All Rights Reserved
05.08