LION System  Wiring and Setting Up the System 
 25 EN1Z-0921GE51 R0709 
Connecting Power Supply 
The LION System can be powered by one or more external 
transformers. 
 
Note 
The maximum length for the power supply cable from a 
transformer is 3 m. This also includes the length of the 
modules and the connection cables between the rails. 
Referring to Fig. 31 the following conditions must be fulfilled: 
A + B  ≤ 3 m and A + C ≤ 3 m 
 
Single or the First Transformer 
►  Connect the transformer to terminals 1 and 2 of the 
CLLIONLC01 Controller. 
 
I/O I/O I/O
CPU
21
B C
A
A + B     3 m
AND
A + C     3 m
 
Fig. 31  Wiring power supply from the (first) transformer to 
the controller module 
 
Additional Transformer 
►  Connect the additional transformer in a second room or 
cabinet to terminals 73 and 74 or 77 and 78 of an 
I/O module. 
 
I/OI/O
71
72
73
74
MAX. 3 m
TRANS-
FORMER 2
 
Fig. 32  Wiring the power supply from a second 
transformer 
 
NOTICE 
Equipment damage! 
►  Do not use bridge connectors to connect modules 
powered by different transformers. 
►  When connecting modules powered by different 
transformers using cables, be sure to not connect 
terminals 73 and 77.