Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
7-1
Typical circuit diagrams
7
7.1 7.1 Connection Notes, Technical Data, Device Selection
The associated connection notes and technical data from the current operating and
configuring guides, and catalogs and application manuals must be used for the configuring of
the drive components, safety switching devices, contactors, etc., listed in the typical circuit
diagrams.
Selection of the switching devices
● 3TK SIGUARD safety combinations
Typical circuit diagrams as well as the descriptions of functions are included in the
"Safety Integrated" Application Examples, order no.: 6ZB5000-0AA01-0BA0.
● Positive-action contacts
SIRIUS 3RT, 3RH, -0BA1 and 3TH power and auxiliary contactors must be chosen with
positive-action auxiliary contacts in accordance with ZH1/457, IEC 60947-5-1.
● Contact reliability
The auxiliary switches, switching contacts of the switching devices and the main power
switch must be suitable for the reliable switching of breaking currents ≤ 17 V, 5 mA.
● Surge suppression
For EMC and function reliability reasons, all switching devices, coils, inductances, brakes,
etc., must be generally connected using RC elements, varistors, diodes or diodes
combinations to counter switching overvoltages, provided such units are not already
integrated in the devices.
This is also the case for switching devices controlled by PLC outputs.
Note
The selection of the surge suppression affects the switch-off delay of the
devices. This influence must also be taken into account for the configuring.
For the selection and the technical data, see the LV10 (Low-voltage Switchgear) catalog.
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