•
Safe brake control (optional)
°
With this safety system, there is the option of using the “safe brake control”
(SBC as per EN 61800-5-2) safety function to control a brake when standstill
has been detected following a completed stop request (SS1). The Safe Linear
Positioning safety system has a dual-channel safety output for this purpose.
The user will be presented with the requirement for a brake in the results of
the risk assessment performed for the specific system.
NOTE
The user is responsible for the safety-focused hardware design of the brake.
The requirements of category 4, PL e (EN ISO 13849-1) must be fulfilled. A
fault in the brake must not lead to the loss of the safety function.
Preparations are also made for the implementation of an override function. However,
there is no logic available in this safety system for the activation of this function. If an
override function is required, the user is responsible for safely implementing it.
3.7.2
Safe state
In the safe state, the accordingly configured safe switching outputs are in the off state.
The machine is and remains switched off. The safe state is initiated in the following
cases:
•
If one of the safety functions provided by the FX3-MOC1 motion control module is
triggered
•
If one of the safety functions programed in the Flexi Soft CPU is triggered
•
If there are connection problems with the signal cables between at least one
OLM100 Hi and the FX3-MOC1
•
If the required voltage supply to at least one of the FX3-CPU, FX3-XTIO, FX3-MOC1
components and the OLM100 Hi fails
•
If implausible or impermissible events are detected for at least one of the two
OLM100 Hi sensors
•
If the statuses of the test signals supplied by the process are implausible or imper‐
missible
•
If there are faults with the OLM100 Hi sensor
•
If there are internal faults with the FX3 modules
•
If an impermissible OLM100 Hi sensor is used
When the safety system initiates the safe state, the machine manufacturer and user
must ensure that the hazard is rectified.
Delivery state
When delivered, Q1 and Q2 of module 1 are the parameterized safe switching outputs.
3
PRODUCT DESCRIPTION
16
O P E R A T I N G I N S T R U C T I O N S | Safe Linear Positioning
8020941/12O9/2019-08-05 | SICK
Subject to change without notice
