LEXIUM MHDA1004, User Manual

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Chapter 5 System Operation
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890 USE 120 00
Description of the restart lock -AS-, continued
Application
examples Moving single axes or axis-groups in setting-up operation
In setting-up operation, people will frequently be within the danger zone of the
machinery. Axes will normally be moved under the control of permission switches.
An additional switch-off of the unused axes, by means of the restart lock, increases
the safety margin and avoids the repeated switching of main contactors or motor.
Switching off grouped axes with separate working areas
Even when several Lexium 17D are operating off a common mains supply and
DC-link, it is possible to set up groups for separate working areas. These groups
can then be switched off separately for personnel safety. For this purpose, we have
provided you with a suggested circuit (mains supply circuit and control circuit for 2
separate working groups which have interconnected DC-links and a common
mains supply voltage).
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