03.06
6.1 NCU terminal block 6FC5211-0AA00-0AA0
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© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
X Drive bus interface
Connector name: X20 (IN) X21 (OUT)
Connector type: 36-pole micro ribbon
Special features: Non-isolated, no protective separation
Caution: Max. length of the drive bus is 10 m
Module connector
Connector name: X11 ... X18 (slots 1 ... 8)
Connector type: 30-pole male connector ELCO Microleaf
Table 6-2 Technical data of the NCU terminal block
Mechanical data
Dimensions Height Width Depth
100 mm 257 mm 40 mm
Weight Approx. 0.5 kg
Ambient conditions
Degree of protection IP20 or IPXXB
Power consumption (24 V)
During operation 150 – 500 mA
X20/X21
X11–X18
6 Terminal Block