Cumberland 064-11343, Installation Manual

Page: 42 / 138

Chapter 3: Networking
The system has to use redundant communication between the Expansion Boxes, external modules, and
the main and redundant controls.
• For a redundant communication setup, use dual links for (Automation | Safety).
Automation and Safety bus have to be wired in daisy chain. Use EDGE RS485 Repeater to extend the
network length or to create sub networks. The maximum cable length without using Power supply wiring
is 1500 ft.
Redundant Power Supply
The EDGE 2 System uses a redundant power supply.
The power consumption of EDGE 2 Controllers are similar to the previous EDGE Main Controller. To
upgrade an EDGE system, swapping out the Main Controllers is very easy if no new hardware features
are implemented.
For example, new cellular bases are installed to a current system. This new feature could overload the
power consumption of Expansion Boxes. To solve this problem, use an EDGE PSU 24V 36W close to the
problematic EDGE 2 Controller and supply it directly. This solution can also be used in the case of voltage
drop on an EDGE network that may be too long.
WARNING
The maximum distance of the DC power cable is 500ft (150m) at 16AWG from the
first EDGE Expansion Box to the last EDGE 2 Controller on the EDGE network. Over
this distance, use an EDGE PSU 24V 36W to supply power to the EDGE 2
Controllers. In this case, do not use the 24Vdc from the EDGE Expansion Box.
Redundant Power Supply
EDGE provide added safety by allowing you to wire the power supplies in a redundant fashion. In this
manner, should one supply fail, the others can take over the load for it.
The controller groups must be divided into subgroups of two Expansion Boxes (28W max of DC load with
6 Slot Expansion Box, 60W max of DC load with 3 Slot Expansion Box).
INSTRUCTIONS : Divide the total group of Expansion Boxes by 2 to make a subgroup of two Expansion
Boxes. If there is an odd group of Expansion Boxes, you can make an even group using one of the follow-
ing options:
1. For a 6 Slot Expansion Box => use two 3 Slot Expansion Boxes.
2. Use an Expansion Box with an external power supply of 150 Watts wired on the Safety Network.
Use dual links on (Automation | Safety).
NOTICE
Only 28W max of DC load is allowed with 6 Slot Expansion Box on EDGE network,
Only 60W max of DC load is allowed with 3 Slot Expansion Box on EDGE network).
Refer to the wiring diagrams for cable distances.
Refer to the EDGE 2 System Quick Start Guide #892–00096 to recognize the scheme pattern.
42 890–00687 EDGE 2