SICK Flexi Compact User Manual

sitive protective device (i.e., a dangerous state must be terminated immediately). It is
ab
solutely essential to ensure that a person cannot generate the same signal sequence
as a transported object.
The placement of the muting sensors is determined by the shape of the object being
detected. There are various options involving different numbers of sensor input signals.
These include the following:
•
Two sensors
•
Two sensors and one additional C1 signal
•
Four sensors (two pairs of sensors)
•
Fours sensors (two pairs of sensors) and one additional C1 signal
Muting signals can be generated by the following sources:
•
Optical sensors
•
Inductive sensors
•
Mechanical switches
•
Controller signals
If optical sensors are used for muting applications, choose sensors with background
suppression to ensure that only the material being transported fulfills the muting condi‐
tions. These sensors are only capable of detecting material up to a certain distance.
Consequently, the input conditions for the muting sensors cannot be met by objects
that are located any further away than this. This applies in particular to sequential
muting.
Conditions for muting
W
hile the muting status is active, the Enable output remains at 1, even if the ESPE input
switches to 0.
Depending on the selected muting type and configuration, different conditions are
tested for a correct muting cycle, i.e., the correct initiation, maintenance and termina‐
tion of the muting status.
In general, at least one muting sensor signal pair (A1/A2 or B1/B2) must always be
active to maintain the muting status.
You can achieve a higher level of safety and improved protection against manipulation
using the following functions:
Table 4: Monitoring functions for muting
Monitoring Parallel mut‐
ing
Sequential
muting
Cross mut‐
ing
Sequence monitoring –
✓
–
Direction detection
✓ ✓
–
Input C1
✓ ✓ ✓
Concurrency monitoring time
✓ ✓ ✓
Total muting time
✓ ✓ ✓
With electro-sensitive protective equipment (ESPE)
✓ ✓ ✓
4 PROJECT PLANNING
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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