i950ES: Safe output is set incorrectly for safety "SOS monitored" (fixed from V01.03.08)
Removed from: i950ES Safety-FW from V01.03.08
Behavior of the new version: The safe output SD-Out1 is now switched as soon as SOS monitored will.
If the tolerance limits are exceeded by changing the position, the error
tolerance limits are exceeded, the error bit in status 0x2870:002 bit
31 is set and the "SOS monitored" bit in status 0x2870:002 bit
18 reset and the safe output SD-Out1 follows as
expected the status signal "SOS monitored" by monitoring the output channels SD-Out1A, SD-Out1B depending on the
switched on or off depending on the parameterized setting in 0x28A0:000 become.
For more information, refer to the project planning manual of the
i950 in the chapter "Safety instructions / Current safety instructions on known
known error patterns" and "Functional safety / Safety functions / Safe operating stop (SOS)".
Safe operating stop (SOS)".
Description of the behavior:
The following misbehavior of the safe output was detected
SD-Out1 (terminal X82, O1A,O1B) in connection with the signal "SOS
signal" for the safety function "Safe operating stop
(SOS)" detected: Contrary to the intended behavior
the signal of the safe output SD-Out1 follows when leaving the
SOS tolerance limits not the status signal "SOS monitored".
conditions under which the behavior occurs:
The
Activate evaluation of the SOS function via safe parameterization (SOS
Source SD-In 0x289D:000 = 1..4 or SOS Source S-Bus 0x289E:000 = 1)
About safe parameterization
"SOS monitored" output in object 0x28A0:000 with "SD-Out1
positive logic" or "SD-Out1 negative logic"
link
The safe output SD-Out1 is switched,
as soon as SOS is monitored is monitored.
If the SOS-tolerance limits are exceeded, the error bit in the
status 0x2870:002 bit 31 is set and the "SOS monitored" bit in the
status 0x2870:002 bit 18 is reset. The
safe output SD-Out1 does not follow the status signal "SOS
monitored", and the output channels SD-Out1A, SD-Out1B remain in
switched on or off depending on the parameterized setting in 0x28A0:000.
or switched off.
Affected products: i950ES Safety-FW
Required measures, evaluation:
When the signal "SOS
monitored" signal is used via the safe digital output or is to be
used in the future, the correction must be made by means of a firmware update.
must be carried out. Until the firmware update has been carried out, the function must be
deactivated. To carry out the firmware update required to rectify the
required to correct the malfunction, please contact Lenze.
Alternatively can "SOS monitored" via the status word in PLC or Safety
controller can be evaluated. This status signal works as expected.
