What Is Safeguarding - ABB IRC5 Compact Product Manual

1 Safety

1.2.5.4 What is safeguarding?

1.2.5.4 What is safeguarding?
Definition
Safeguarding are safety measures consisting of the use of safeguards to protect
persons from hazards which cannot reasonably be removed or sufficiently
eliminated by design.
A safeguard prevents hazardous situations by stopping the manipulator in a
controlled manner when a certain safeguarding mechanism such as a light curtain
is activated. This is done by connecting the safeguard to any of the safety stop
inputs at the manipulator controller.
The safety stops described in
for safeguarding.
Safeguarded space
The safeguarded space is the space guarded by the guards. For example, a
manipulator cell is safeguarded by the cell door and its interlocking device.
Interlocking devices
Each present guard has an interlocking device which, when activated stops the
manipulator. The manipulator cell door has an interlock that stops the manipulator
when the door is opened. The only way to resume operation is to close the door.
Safeguarding mechanisms
A safeguarding mechanism consists of a number of guards connected in series.
When a guard is activated, the chain is broken and the machine operation is stopped
regardless of the state of the guards in the rest of the chain.
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Note
The safeguarding function may only be used for the purpose and under the
conditions for which it is intended.
Note
The safeguarding function should not be used for normal program stops as this
causes extra, unnecessary wear on the manipulator.
For how to perform normal program stops, see section Stopping programs in
Operating manual - IRC5 with FlexPendant.
Note
Use normal program stop for all other types of stop.
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What is a safety stop? on page 24, should be used
3HAC035738-001 Revision: E