SEW-Eurodrive ECDriveS ECC-DFC, Manual, Page: 70 / 96

ECShell engineering software
70
Manual
– ECC-DFC field bus controller
In this example, the slowed-down speed is proportional to 50% of 0.5 m/sec. De-
tailed information about the “Slow Down” and “Fast Release Time” functions can
be found in the pop-up window of the ECShell engineering software.
Clicking “Set All” activates the Look Ahead function in the entered % speed for all
nodes in the area that is defined in the main window.
INFORMATION
Detailed information about the “Slow Down” and “Fast Release Time” functions
can be found in the pop-up window of the ECShell engineering software.
The jam timers are used by the logic as the anticipated time that a load requires
to run from one zone to the next. If this timer elapses before the load reaches the
next zone, the module indicates a jam condition. The jam condition of a zone is
automatically canceled and the jam timer starts as soon as the photo sensor of
the zone is clear.
”Jam”, “Auto Clear”, and “Run After” timers
If a zone is in the jam condition and its photo sensor remains blocked, the vicinity
of the photo sensor must be cleared and remain free for the time that is set in the
jam timer. If a jam occurs in a certain zone, the logic prevents upstream loads
from running into this zone.
The default value for the jam timer is 5 seconds and the permissible range of
values that can be set for each jam timer is between 1 and 20 seconds.
The Auto Clear timer determines the time for which the module waits before it
attempts to clear a jam.
The logic uses the value of the Run After timer for normal zone discharging. It is
the time for which a motor roller of a zone should continue running when the pho-
to sensor is clear again after the load has been passed to the next downstream
zone.
This additional running time allows the zone to continue running until the rear
edge of the box has entirely passed the photo sensor and has run all the way into
the next zone. The value of this timer is adjustable in order to compensate for
special conditions in which the photo sensor of a zone has to be attached in a
position that is further upstream or downstream.
The default value for the Run After timer is 0.4 seconds, the setting range of the
Auto Clear timer is between 0 and 10 seconds, and the permissible range of val-
ues that can be set for each Run After timer lies between 0.1 and 6 seconds.