Siemens SINUMERIK 840DE User Manual page 74

6 Terminal Block
6.1 NCU terminal block 6FC5211-0AA00-0AA0
Connection to the
The terminal block is connected to connector X20 on the drive bus of the last
drive bus drive module via round cables. These cables are available in different lengths.
(cable lengths 1, 2, 5, and 10 m). Up to 2 terminal blocks can be operated (in
accordance with the available NCK addresses for rapid analog and digital I/Os).
The round cables are also used in conjunction with individual terminal blocks.
Important
!
Please make sure that the total length of the cable connections does not
exceed 10 m.
Connection PROFIBUS DP terminal block
Drive bus
max. length
10 m
Device bus
SIEMENS
SIMODRIVE
I/R NCU
Fig. 6-2 Connection of terminal block to 840D
Terminator The termination connector must be plugged into slot X21 on the last NCU termi-
nal block.
Protective
When the PE and interference conductors are in common, the PE conductor
conductor rules in EN 61800–5–1 must be followed. PE conductor connection, see
Fig. 6-1.
6-72
MSD FD
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
Up to 2 NCU terminal
blocks can be connected
Termination
connector
Round cable
© Siemens AG, 2006. All rights reserved
03.06