A
GFK-2731
Chapter A
A-25
A 8.2
Detection of device errors
All serious errors that can result in the loss of or adversely affect the safety function cause
the entire device to enter the safe state. The FS LED on the safe device is permanently on.
Depending on the device type, the following errors lead to the safe state:
– Hardware fault in the circuit
– User error
– Module overload
– Overheating
– Faulty supply voltage
The corresponding error message is transmitted to the IC220SDL953 and the standard
controller.
A 8.3
Acknowledgment of error messages for satellites
Errors that occur on satellites are acknowledged by the standard controller in the Dev-Ack-
LPSDO register on the IC220SDL953 (see "Description of the registers" on page A-17).
The acknowledgment is forwarded to the satellites.
To determine which errors are detected by a specific device, please refer to the
corresponding device documentation.
An example for the acknowledgment of error messages can be found in the quick start
guide for the IC220SDL953 (see "Ordering data: Documentation" on page 10-7).
