130 HB700 | CPU | PMC921xEx | en | 24-04
Deployment CPU iC921xM-FSoE
Operating temperature
Warning limits
Error limit
Behavior on error
Horizontal hanging or vertical hanging the CPU has the following temperature ranges:
■ Horizontal hanging: 0°C to 60°C
■ Vertikal hanging: 0°C to 55°C
If the temperature falls below -2°C or exceeds 78°C, a warning message is added to the
error stack and the log file of the safety CPU.
If the temperature falls below -7°C or exceeds 83°C, the safety CPU switches to the Hard
fail safe state. ⮫
‘Fail safe states’...page 130
5.11 Fail safe states
All detected, serious errors in the CPU that could lead to loss or malfunction of the
programmed safety function result in a transition to the safety state (fail safe state). A
distinction is made between Soft fail safe
and Hard fail safe states. Here the CPU shows
different behavior:
■ State Soft fail safe
Behavior
– The safety outputs of the F devices are set to zero (FALSE).
– The red SF_ER LED blinks with 1Hz.
– If you are connected online to the iCube Engineer on error, information about the
error is also shown in the software.
Possible reason
– Error in parametrization
Acknowledgement
– Bug fixing in the project and new upload.
■ State Hard fail safe
Behavior
– The safety outputs of the F devices are set to zero (FALSE).
– The red SF_ER LED is on.
– Communication with the CPU is no longer possible.
Possible reason
– Hardware error, exceeding the switch-off thresholds of the temperature limits.
Acknowledgement
– Check your hardware setup and perform a power cycle.
To Next Page
Loading...
Need help?
General
