ETC Cobalt Family v7.1.0 - Manual (Page 644)

Cobalt 7.1 - 20140612
643
In the example above, the FCB Times are 100% of the In time (5 seconds).
If the FCB Times are set to 50% of the IN-time they will be 2.5 seconds at an in time of 5 seconds.
If the In-time is changed to 10 seconds, the FCB-times will be 50% of 10 (= 5 seconds).
NOTE
In Congo plays files earlier than Version 4.2, the FCB Delay time was set to
100% due to the fact that Delay Times were inherited from the Delay In
time. These plays (pre-4.2) with FCB Delays set to 100% will be converted to
use a delay of 0s instead.