ECShell engineering software
Manual – ECC-DFC field bus controller
8.4.5. Selecting ZPA mode
Singulation mode is the default configuration for all zones after the auto configu-
ration procedure has been carried out. A description can be found in chapter
“Singulation (ZPA)”. The ZPA modes that are available via ECShell are described
in the following.
Train Release mode
For zones that are configured for Train Release mode, all upstream zones are set
in motion simultaneously when the downstream Train Zone is enabled. In this
way, the motor roller conveyor operates in a similar way to a conventional roller
conveyor with a single drive: All loads are moved at the same time. Figure 33
shows a typical example of Train Release.
Figure 33 “Train release” example
INFORMATION
Note that singulation and train release modes are configured per zone and a
mixture thereof can occur in the same network.
GAP Train Release mode
Gap Train is a variant of the Train Release and contains a fixed delay before the
loads are moved. Gap Train is typically used in the discharge zone of a zone
group that is already in Train mode. This configuration can be used in order to
ensure that there is a certain minimum distance between boxes.
Assuming that the gap timer in the discharge zone is set to 5 seconds and there
are 10 zones behind the discharge zone that are all in train mode. All zones are
occupied and accumulated. A box is released from the discharge zone. All boxes
in all 10 zones now move simultaneously, since they are in Train mode.
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