Configuration
5-36 7SA6 Manual
C53000-G1176-C133-1
The settings for the monitoring criteria of the chatter blocking feature are set only once
for all binary inputs; however, the status of the chatter suppression can be set
individually for each binary input. See “Filtering / Contact Chatter Suppression” in Sub-
section 5.2.3.
The following should be noted:
• If there is contact chatter at a binary input and the input is blocked, the
corresponding indication will be displayed with “CCF” (example: “!'RRURSHQ&&)
21”). Also, the indication “&RQWDFWFKDWWHUILOWHU” reports this condition. Both
messages are shown in the operating buffer.
• Chattering of a single point indication is set as ON (coming) if the binary input has
been in an active state.
• Chattering of a single point indication is set as OFF (going) if the binary input has
been in an inactive state.
• If this behaviour causes undesired results in individual situations, a blocking may
be configured in CFC.
• Chattering of a double point indication will be considered an “intermediate”
condition.
Note:
Chatter blocking cannot be activated for any of the standard protective indications.
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