Machine Tool Safety Interface - ABB FlexMT Product Manual

2 Installation

2.5.1 Machine tool safety interface

2.5.1 Machine tool safety interface
The equipment has a safety interface that makes connection of the FlexMT to the
machine tool safety circuits possible. The safety interface handles the following
aspects:
Please refer to the SafetyCenter manual for details on the safety interface.
Alternate autostop configuration.
The standard autostop safety interface connection puts the machine tool in autostop
as soon as any FlexMT door is opened.
The FlexMT electrical cabinet does allow an alternate autostop configuration
towards the machine tool (autostop with override-function). This possibility is given
for the integrators convenience and shall not be considered to be a standard option.
In this configuration, the autostop sent to the machine tool can be overridden by
first holding the 3-position switch on the FlexPendant and shortly switching the
door reset switch. The autostop sent to the machine tool will now be overridden
as long as the 3-position switch on the FlexPendant is safely activated.
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• Bidirectional exchange of emergency stop between FlexMT and machine
tool.
• One-directional exchange of autostop from FlexMT to machine tool.
• Machine tool is expected to behave as emergency stop slave in standard
configuration.
• Overall safety functions in FlexMT fulfill requirements for PLd according to
EN ISO 13849-1.
• Two-channel potential-free connections.
• Optional external autostop interface.
• The physical interface is constituted by terminal blocks in the control cabinet.
DANGER
It is the integrators responsibility to perform an suitable risk assessment for this
mode of operation.
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3HAC051768-001 Revision: -