CENTRALINE I/O MODULES – INSTALLATION & COMMISSIONING INSTRUCTIONS
9 EN1Z-0973GE51 R0119
also section "Field Device Cables" on page 10 and connec-
tion examples on page 20.
Fusing Specifications
Please see section "System Constraints" on pg. 7 and ob-
serve the following when selecting fusing (F1 / F2 / F3 / F4)
for the CentraLine I/O Modules and active field devices:
Use separate fusing for different loads (e.g., for the con-
troller and CentraLine I/O Modules on one hand versus for
active field devices on the other).
Fuse ratings must always be calculated according to the
loads connected. Refer to Table 11 and the load tables
appearing in the documentation of your CentraLine
devices.
Use slow-acting fuses; this is because the controller, the
CentraLine I/O Modules, and active field devices have a
high in-rush current due to their built-in capacitors (current
typically limited by one internal 2 Ω resistor per device).
Fuses should be calculated to protect the transformer
against overloading and the wiring against short-circuiting.
The controller and the CentraLine I/O Modules are pro-
tected by an internal fuse (not user-replaceable) against
internal component defects.
For connection examples, see section "Description of the
CentraLine I/O Modules" on page 22 and following.
System Protective Earth Grounding
CentraLine controller systems comply with SELV (Safety
Extra-Low Voltage). Earth grounding is therefore not
recommended. However, if compliance with EN60204-1 is
required, see Appendix 1.
Lightning Protection
Please contact your local CentraLine representative for
information on lightning protection.
Panel Bus Topologies
A single LION controller can control up to 16 Panel Bus I/O
modules.
Each of the EAGLEHAWK controller's two RS485 inter-
faces (max. one bus per interface) is limited to max. 16
Panel Bus I/O modules of a given type, and each interface
is limited to a max. of 64 Panel Bus I/O modules. This
yields a total max. of 128 Panel Bus I/O modules per
controller.
Each of the EAGLE controller's two RS485 interfaces
(max. one bus per interface) is limited to max. 16 Panel
Bus I/O modules of a given type, and each interface is
limited to a max. of 64 Panel Bus I/O modules. This yields
a total max. of 128 Panel Bus I/O modules per controller.
In the case of the CLEA2014B21 and CLEA2014B31, the
total max. no. is reduced to 64.
Panel Bus I/O modules must be addressed using the HEX
switch (see section "Addressing Panel Bus I/O Modules"
on pg. 20).
Max. distance between controller and Panel Bus
I/O module: 40 m (any type of cabling and topology, incl.
star and loop topology, possible; no additional end
termination permitted); 1200 meters (mandatory twisted-
pair or telephone cable and daisy chain topology; controller
must be positioned at one end of the Panel Bus, and an
end termination of 120 Ω positioned at the other end)
No bus termination
Polarity-insensitive
LONWORKS Bus Topologies
The LONWORKS Bus is a 78-kilobit serial link that uses
transformer isolation so that the bus wiring does not have a
polarity. I.e. it is not important which of the two L
ONWORKS
Bus terminals are connected to each wire of the twisted pair.
The L
ONWORKS Bus does not need to be shielded.
The L
ONWORKS Bus can be wired in daisy chain, star, loop or
any combination thereof as long as the max. wire length
requirements are met.
Configuration
The recommended configuration is a daisy chain with two bus
terminations. This layout allows for max. L
ONWORKS Bus
lengths, and its simple structure presents the least number of
possible problems, particularly when adding on to an existing
bus. See also “L
ONWORKS Mechanisms”, Product Literature
no.: EN0B-0270GE51.
LONWORKS Bus Termination Modules
Table 15. LONWORKS Bus termination module
Type Description
XAL-Term2
L
ONWORKS connection and termination
module, which can be mounted on DIN
rails and in fuse boxes
Cable Specifications
Power Supply Cables
When checking the length of the power supply cable, the
connection cables to all I/O modules must be taken into
account.
Table 16. Power supply cables specification
Max. length
3 m (per side of the controller),
see Fig. 19 on page 17
Cross section min. 0.75 mm
2
(AWG 18)
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