Installation Instructions

CPO-PC400-W/CPO-PC400-UW HVAC CONTROLLER
EN0B-0085 IE10 R0420 14
Cable Specifications
Power Supply Cable Specifications
The length of the power supply cable includes the length of
the cables to connected modules.
NOTE: The supply voltage must, in any case, be at least
19.2 Vac (24 Vac -20%).
See also the connection diagrams presented in Fig. 9
through Fig. 26 for details.
Antenna Cable Specifications
Field Device Power Supply Cable
Specifications
Communication Bus Cable Specifications
Use Belden 9841 or Equivalent cable with the following
specifications:
RS485 Bus Cable Specifications
• An MSTP EIA-485 network shall use shielded, twisted-
pair cable with a characteristic impedance between 100
and 130 ohms.
• Distributed capacitance between conductors shall be
less than 100 pF per meter (30 pF per foot).
• Distributed capacitance between conductors and shield
shall be less than 200 pF per meter.
Table 22. Power Supply Cable Specifications
Device
Cable
Length
Cable cross-
section
CPO-PC400-W/
CPO-PC400-UW
Max. 3 m Min. 1.5 mm
2
Panel Bus I/O Max. 3 m Min. 1.5 mm
2
FBA Max. 20 m Min. 1.5 mm
2
EXPIO Max. 1200 m Min. 1.5 mm
2
CPO-DIO Max. 1200 m Min. 1.5 mm
2
C-Bus > 3 m Depends on Plug
Gauge. See
“Wiring
Terminals”
section on
page 13
M-Bus > 3 m Depends on Plug
Gauge. See
“Wiring
Terminals”
section on
page 13
Table 23. Antenna Cable Specifications
Device Cable Length
Cable cross-
section
Remote
Antenna
Max. 3 m
5 mm
2
Table 24. Field Device Power Supply (24 Vac) Cable
Specifications
Cable Length Cable Cross-section
≤ 100 m (300 ft.), single
transformer (see
“Example 1: Power Supply
via Controller Using Panel
Module” section on
page 12.)
min. 1.5 mm
2
(16 AWG)
≤ 400 m (1300 ft.),
separate transformers
(see “Example 2: Power
Supply via Separate
Transformer” section on
page 12.)
not allowed for > 100 m
(300 ft)
Table 25. Communication Cable Specifications
Interface (Buses) Cable Type
RS485 interfaces 1, 2, and
3 (Panel Bus, BACnet Bus,
Field Bus, Modbus, C-Bus,
M-Bus)
One or two pairs
(depending on the
application) of twisted
pair complying with
EIA485 standard (level IV,
22 AWG, solid core, non-
shielded), e.g., J-Y-Y 2 x 2 x
0.8, or shielded wire.
RS485 interface 4 (Panel
Bus, CP-IO Bus)
Ethernet 1, 2 (Ethernet
Bus)
CPO-PC400-W/CPO-
PC400-UW can be used
with CAT5, CAT6, and
CAT7 cabling. Standard
Ethernet cross-over cable,
Cat-5, min. 10/100
MBaud, max. length of
100 m