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LBK System BUS | Instruction manual v1.0 SEP 2020 | LBK-System-BUS_instructions_en v1.0 | © 2020 Inxpect SpA
4.7.2 Types of managed restart
NOTICE
: it is the responsibility of the machinery manufacturer to assess if automatic restart prevention can
guarantee the same level of safety as manual restart (as defined in standard EN ISO 13849-1:2015, section
5.2.2).
The system manages three types of restart prevention:
Type
Conditions for enabling machinery restart
Automatic
The time interval set through the Inxpect Safety application (
Restart timeout
) has
passed since the last motion detection*.
Manual
The
Restart signal
was received correctly** (see "Restart signal" on page 77).
Safe manual
1. The time interval set through the Inxpect Safety application (
Restart timeout
) has
passed since the last motion detection* and
2. the status of the restart enable button indicates that the restart is enabled (see
Note *
: machinery restart is enabled if no motion is detected up to 50 cm beyond the detection field.
Note **
: (for all types of restart) other dangerous system statuses may prevent the restart of the machinery (e.g. diagnostic
fault, sensor masking, etc.)
4.7.3 Precautions for preventing undesired restarting
To prevent undesired restarting the following rules must be followed:
l
the set restart timeout must be greater than or equal to 10 s.
l
if the sensor is installed at a height of less than 30 cm from the ground, a minimum distance of 30 cm
from the sensor must be guaranteed.
4.7.4 Enable the restart prevention function
Type
Procedure
Automatic
In the Inxpect Safety application
Configuration
>
Settings
>
Sensors
, set the
Restart
timeout
.
Manual
1. Connect the machinery restart enable button conveniently, see "Electrical
2. In the Inxpect Safety application
Configuration
>
Settings
>
Sensors
, set
Restart
timeout
= 0.
Safe manual
1. Connect the machinery restart enable button conveniently, see "Electrical
2. In the Inxpect Safety application
Configuration
>
Settings
>
Sensors
, set the
Restart timeout
.
4.8 Muting
4.8.1 Description
Muting temporarily suspends the safety functions. Motion detection is disabled and therefore the controller
maintains the safety outputs activated even when the sensors detect motion in detection field 1 or detection
field 2 (if present).
4.8.2 Muting enabling
The muting function can be enabled through digital input (see "Enable muting signal characteristics" on the
next page) or safety Fieldbus (if supported).
Through digital input the muting function can be enabled for all the sensors simultaneously or only for a group
of sensors. Up to two groups can be configured, each associated to a digital input.
Through the Inxpect Safety application, the following must be defined:
l
for each input, the group of managed sensors
l
for each group, the sensors that belong to it
l
for each sensor, whether it belongs to a group or not
See "Configure the inputs and outputs" on page 49.
4. Functioning principles
Содержание LBK System BUS
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