Technical data

Safety Integrated Functions
8.4 Safety Integrated Basic Functions
Function Manual
364 Function Manual, 06/2012, 6SL3097-4AB10-0BP4
A timer ensures that forced dormant error detection is carried out as quickly as possible.
● p9659 SI timer for the forced dormant error detection.
Forced dormant error detection must be carried out at least once during the time set in this
parameter.
Once this time has elapsed, an alarm is output and remains present until forced dormant
error detection is carried out.
The timer returns to the set value each time the STO function is deactivated.
When the appropriate safety devices are implemented (e.g. protective doors), it can be
assumed that running machinery will not pose any risk to personnel. For this reason, an
alarm is only output to inform the user that a forced dormant error detection run is due and to
request that this be carried out at the next available opportunity. This alarm does not affect
machine operation.
The user must set the time interval for carrying out forced dormant error detection to
between 0.00 and 9000.00 hours depending on the application (factory setting: 8.00 hours).
Examples of when to carry out forced dormant error detection:
● When the drives are at a standstill after the system has been switched on (POWER ON).
● When the protective door is opened.
● At defined intervals (e.g. every 8 hours).
● In automatic mode (time and event dependent)
NOTICE
The timer of the Basic Functions will be reset if the associated forced dormant error
detection is executed and the Extended Functions are used simultaneously.
Discrepancy is not checked at the terminals used to select the Basic Functions as long as
STO is set by the Extended Functions. That is, the forced dormant error detection
procedure of the Basic Functions always has to be executed without simultaneous selection
of STO or SS1 by the Extended Functions. It is otherwise not possible to verify the correct
control through the terminals.
WARNING
For the SINAMICS S110 drive system, to perform a self test, a POWER OFF/POWER ON
1)
must be performed for the Control Unit at least once a year. This also applies, if the forced
checking procedure of the safety functions takes place more frequently than once per year.
1)
For SINAMICS S110, the Control Unit can also be supplied from the line connection of the
Power Module. For SINAMICS S110, a POWER OFF/POWER ON means line supply off/on
for the Power Module and – if one is being used – also for the 24V power supply.