6 Function description
Introduction
FlexLoader Standard Safety Center adds overall safety features to a FlexLoader
cell. Emergency stop and protective stop to and from the FlexLoader equipment
are gathered in one place and evaluated and managed according to the
configuration.
In the following function description “internal” refers to a component or machine
that is part of the FlexLoader function package or standard cell, e.g. the robot,
FlexLoader FP 400, a rotation unit or similar. “External” refers in a typical case to
the customer’s machine tool(s) (for example a transfer machine, lathe, press or
similar).
For detailed functional specification see
Protective stop
A protective stop is triggered by opening a cell door or opening (internal protective
stop) or giving access to the cell through a connected system (external protective
stop).
Emergency stop
An emergency stop is triggered by pressing any cell emergency stop button in the
system (internal emergency stop) or putting any connected system into emergency
stop (external emergency stop).
Entry and door lock
Door entry request and locking management are non-safety rated functions that
are normally checked and controlled by the robot. They are not part of the
FlexLoader Standard Safety Center.
The robot is responsible for locking the door when necessary. The FlexLoader
Standard Safety Center provides a possibility to override door locking in case of
emergency stop or protective stop.
Controlled exit
The protective stop is normally reset by a key switch positioned at every door.
Sometimes not all the cell can be seen from the doors locations.
In this case, a pre-reset button shall be placed in the cell at a location that ensures
unobstructed view into the whole cell. FlexLoader Standard Safety Center must
then be configured for ControlledExit.
Protective stop can then only be reset if the pre-reset button is pressed prior to
final reset by the key switch positioned at the door, within a time limit of 30 s.
Handling dangerous equipment
If there is dangerous equipment in the cell, it will be deactivated at a protective
stop. In some cases you may want to activate this equipment during a protective
stop, e.g. for test operation.
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Application manual - FlexLoader Standard Safety Center
43
3HAC051769-001 Revision: E
© Copyright 2014-2020 ABB. All rights reserved.
6 Function description
Summary of Contents for FlexLoader
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