Connecting Single Bus Controller Systems - Honeywell Excel 800 SYSTEM Installation And Commissioning Instructions
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- Installation and commissioning instructions (54 pages) ,
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Table of Contents
Excel 800
Connecting Single Bus Controller Systems
This section describes how to connect a controller system
which uses Panel Bus I/O modules, only or L
Bus I/O modules, only.
Controller and I/O Modules on a Single Rail
Connect controller and I/O modules using the bridge
►
connectors.
This provides power supply and communication connection.
No further wiring is necessary.
Controller and I/O Modules on Several Rails in a
Single Cabinet
The rails of a controller system are connected in series.
Connect the rail ends as follows:
►
– Power supply
via power supply terminals 73, 74 or 77, 78
– Communication
via communication terminals 71, 72 or 75, 76
71
72
I/O
73
74
71
72
I/O
73
74
71
72
I/O
73
74
71
72
I/O
73
74
Fig. 33
Wiring the power supply and the communication
lines to the I/O modules
Maximum Power Cable Length
The maximum length for power supply cable per side is 3 m.
This also includes the connection cables between the rails,
the lengths of the modules, and the cable from the
transformer.
W
ON
ORKS
I/O
75
76
I/O
I/O
77
78
75
76
CPU
I/O
77
1 2
78
I/O
Panel Bus I/O Modules in Separate Rooms
In this scenario, communication and reference voltage
(24 V0) must be connected between the rooms.
Connect the last module of room 1 to the first module of
►
room 2:
– Reference voltage
via power supply terminals 74 or 78
terminals 73 and 77 must not be connected
– Communication
via communication terminals 71, 72 or 75, 76
71
72
PANEL
73
74
Fig. 34
Wiring the Panel Bus I/O modules in separate
rooms
Maximum Cable Length
The maximum cable length for connecting room 1 and
room 2 is 40 m.
25
Wiring and Setting Up the System
PANEL
CPU
I/O
1 2
PANEL
I/O
I/O
EN1B-0375GE51 R0910
75
76
77
78
75
76
77
78
24 V0
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