Table of Contents
Advertisement
System messages
15.9 Safety message buffer
Current message case
The current message case contains up to 8 active messages.
The safety messages are sorted by "Message time received". If the current message case is full
and an additional safety message is received, then the converter overwrites the values with
Index [7]. Resolved messages are moved to the safety message history.
Figure 15-10
Acknowledgment of safety messages
Once the cause of the safety message has been eliminated, the converter writes the time
to "Message time resolved". The "Message time resolved" of the unresolved safety messages
retains the value 0.
Safety messages are acknowledged via a fail-safe digital input (F-DI) or via PROFIsafe.
Resolved and acknowledged safety messages are cleared from the current message case.
Unresolved safety messages remain stored in the current message case. If more than 8
messages are active, then these messages are added to the actual message case.
Safety message history
Up to 7 message cases each with 8 already acknowledged safety messages are saved in the
safety message history.
The converter moves the acknowledged safety messages from the current message case to
the safety message history as follows:
1. The converter shifts the values previously saved in the safety message history by 8 indices.
The converter deletes the safety messages that were saved in the indices [56 ... 63] before
acknowledgement.
2. The converter copies the actual message case with the acknowledged messages to the safety
message history.
The safety message history can include acknowledged messages that have still not been
resolved (fault time resolved = 0) These messages remain as active message until they are
resolved.
754
Current message case
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
SINAMICS G220 converter
Advertisement
Table of Contents
