NOTICE
Risk of destroying components resulting from high discharge currents
The NCU or other PROFIBUS or PROFINET nodes can be destroyed if significant discharge
currents flow through the PROFIBUS or PROFINET cable.
Between parts of a plant or system, use an equipotential bonding conductor with a minimum
cross-section of 25 mm².
NOTICE
Cables not certified for the application can damage modules
Only use Siemens cables for the DRIVE-CLiQ connections.
Note
Protecting unused DRIVE-CLiQ interfaces
Close any unused DRIVE-CLiQ interfaces using the blanking covers provided.
Note
Equipotential bonding for distributed DRIVE-CLiQ nodes
Integrate all of the components that are connected via DRIVE-CLiQ into the equipotential
bonding concept. The connection should be preferably established by mounting on metallic
bare machine and plant components that are connected with one another using an
equipotential bonding conductor.
Alternatively, you can establish equipotential bonding using a conductor (min. 6 mm²), which
as far as possible, is routed in parallel to the DRIVE-CLiQ cable. This applies to all distributed
DRIVE-CLiQ nodes, such as DME20, SME2x, SME12x, etc.
If you have any further questions or are looking for particular solutions, you can contact the
Systems Engineering Plant Chemnitz directly.
7.2
Designs
The NCU is installed in a control cabinet along with the SINAMICS components.
Designs
The NCU is mounted vertically on the rear panel of the control cabinet. It can be mounted with
or without a spacer.
Note
The procedures described below for mounting the NCU refer to the NCU as delivered: the upper
clip is pulled in and the spacers are mounted.
Installation
7.2 Designs
NCU 1740
50
Equipment Manual, 10/2021, A5E51087503B AA
Содержание SINUMERIK ONE NCU 1740
Страница 48: ...Dimension drawings 6 1 NCU 1740 dimension drawing NCU 1740 48 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 52: ...Installation 7 4 Mounting the NCU without spacers NCU 1740 52 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 96: ...Technical data 11 3 Recycling and disposal NCU 1740 96 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 156: ...Connectable components 12 3 PP 72 48D PN 2 2A PN NCU 1740 156 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 160: ...Safety symbols NCU 1740 160 Equipment Manual 10 2021 A5E51087503B AA ...