SICK Flexi Compact User Manual

7.6.2.7.7 Parameter Direction detection
The Dir
ection detection function can be used to tighten muting conditions if the material
being transported is only to be moved in one particular direction. The possible move‐
ment direction depends on the order in which the muting sensors are activated.
If the Forward (A1 / A2 first) direction is selected, the inputs for the muting sensor pairs
must be activated in the order A1 / A2 before B1 / B2. Muting is not possible in the
opposite direction.
If the Backward (B1 / B2 first) direction is selected, the inputs for the muting sensor
pairs must be activated in the order B1 / B2 before A1 / A2. Muting is not possible in
the opposite direction.
7.6.2.7.8 Parameter Suppression of sensor signal gaps
Occasionally, muting sensors are affected by output signal faults that are of no signifi‐
c
ance as far as muting is concerned. The Suppression of sensor signal gaps function makes
it possible to filter out brief faults without interrupting muting.
When the Suppression of sensor signal gaps parameter is active, a change of a muting
sensor signal input to 0 will be ignored for the length of time that has been set for
Suppression of sensor signal gaps. The function block continues to interpret this as an
uninterrupted 1 signal provided that only one muting sensor signal input from each
sensor pair (A1/A2 or B1/B2) is affected by a signal gap.
7.6.2.7.9 Parameter Concurrency monitoring time
Parameter Concurrency monitoring time
T
his parameter is used to check whether the muting sensors are activated at the
same time. This value relates to the two muting sensor signal inputs that are subject
to dual-channel evaluation and specifies how long they are allowed to have different
values without this being regarded as an error. This means that input pair A1 and A2
or the input pair B1 and B2 must assume equivalent values before the end of the
concurrence monitoring time.
Concurrence monitoring starts as soon as a value of a muting sensor signal input
changes for the first time. If the concurrence monitoring time expires and both inputs
of an input pair still have different values, an error occurs and the muting sequence is
canceled.
If the concurrence monitoring function of at least one input pair detects an error, the
function block indicates this by setting the Muting error output to 1.
Complementary information
W
ith the Sequential muting V1 function block, it must be taken into account that the
two sensors of each pair switch at different times. The difference depends on the
distance between the two sensors and on the speed of the material transport.
7.6.2.7.10 Parameter Total muting time
This parameter is used to limit the maximum duration of the muting sequence. If the
v
alue set for the Total muting time parameter is exceeded, the Muting error output switches
to 1 and the Enable and Status outputs switch to 0.
The timer for the Total muting time starts running when a valid start condition for muting
exists; this is indicated by the Muting status output transitioning to 1. The timer for the
Total muting time stops running and is reset to 0 if the muting sequence is ended again;
this is indicated by the Muting status output transitioning to 0.
7 C
ONFIGURATION
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O P E R A T I N G I N S T R U C T I O N S | Flexi Compact 8024589/2020-11-10 | SICK
Subject to change without notice

SICK Flexi Compact Specifications

General

Brand	SICK
Model	Flexi Compact
Category	Controller
Language	English