EAGLE CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS 
 27 EN1Z-0970GE51 R1112 
Earth Grounding of EN60204-1 Applicable 
Systems 
  If system protective earth grounding is planned, use a 
cable as short as possible for grounding: 
min. 1.5 mm² (16 AWG). 
  For connection details, refer to the following examples. 
 
 
Example 1 
Connecting and earthing the EAGLE and its Panel Bus I/O 
Modules together with other controllers (e.g., the LION) and 
their I/O modules powered by a single transformer and 
earth-grounded as per EN60204-1. 
  Connect earth ground to terminal 1 of the EAGLE 
Controller. Connect earth ground to terminal 74 of its 
corresponding Panel Bus I/O Module. 
 
24 V~
24 V~0
LINE
L
N
EAGLE
29 30
RS485-2 + RS485-2 -
COM
B
NOISE-FREE EARTH GROUND
(ONLY ONE PER SYSTEM)
LION I/O I/O
COM
A
7472 7371
24V~
24V~0
2 21 1
24V~ 24V~
24V~0 24V~0
I/O MODULE
 
Fig. 35. Connecting and earthing the EAGLE Controller 
and its Panel Bus I/O Modules together with other 
controllers 
 
Example 2 
Connecting and earthing the EAGLE together with other, 
mixed controllers earth-grounded as per EN60204-1. 
NOTE:  Use a noise-free earth ground inside the cabinet. 
NOTE:  Use one star-point to split power for controllers and 
field devices. 
NOTE:  If the transformer is used for several controllers, 
each controller ground has to be wired separately 
to the star-point. 
NOTE:  If a field device that prohibits earth grounding is 
connected to the system ground, an isolation 
monitoring device must be used instead of earth 
grounding. 
NOTE:  If the field device transformer is physically far away 
from the controller, earth grounding must still be 
performed for the controller. 
  Connect earth ground to the respective terminal of the 
controllers, see Fig. 36. 
24 V~
24 V0
LINE
L
N
NOISE-FREE EARTH GROUND
(ONLY ONE PER SYSTEM)
EAGLE
1 2 19
GND
XSL511
1
24 V0
2
24 V~
XCL5010
1
24 V0
2
24 V~
LION
1 2
24 V0 24 V~
GND
FIELD DEVICE
24 V~
OR TERMINAL 37
24V-0
24V~
 
Fig. 36. Connecting and earthing the EAGLE together 
with other, mixed controllers