Power Supply; Transformers; Switch Power Supply; Fusing - Honeywell ComfortPoint Open CPO-PC400-W Manual

WARNING
Risk of electric shock or equipment damage!
• Do not connect more than one CPO-PC400-W/CPO-
PC400-UW controller to the same transformer.
• Do not connect a CPO-PC400-W/CPO-PC400-UW
controller and a PW M-Bus Adapter device to the same
transformer.
NOTE: If, alternatively, only a single transformer is avail-
able, when connecting a laptop, PC, web browser,
Excel Touch, or 3rd-party touch panel to the USB
2.0 Device Interface on the front of the CPO-
PC400-W/CPO-PC400-UW controller, use an
optical isolator for the USB connection or substi-
tute an M-Bus Miro-Master USB (Relay GmbH, D-
33106 Paderborn) for the PW M-Bus Adapter.

POWER SUPPLY

Transformers

Honeywell Transformers
A transformer can power the CPO-PC400-W/CPO-PC400-
UW. When determining total current consumption and
selecting the appropriate transformer, take into account
the number of connected modules, accessories, and field
devices.
NOTE: In Europe, system transformer(s) must be safety
isolating transformers according to IEC61558-2-
6. In the U.S.A. and Canada, NEC Class-2 trans-
formers must be used.
Table 16. Honeywell CRT Series Transformers (Europe)
Part No. Primary Side
CRT 2 220/230 Vac
CRT 6 220/230 Vac
CRT 12 220/230 Vac
Table 17. Honeywell 1450 Series Transformers
(N. America)
Part No.
Primary Side
14507287
-001 120 Vac
-002 120 Vac
-003 120 Vac
Secondary Side
24 Vac, 50 VA, 2 A
24 Vac, 150 VA, 6 A
24 Vac, 300 VA, 12 A
Secondary Side
24 Vac, 50 VA
2 x 24 Vac, 40 VA; 100 VA
from separate
transformer
24 Vac, 100 VA; 24 Vdc;
600 mA
11
CPO-PC400-W/CPO-PC400-UW HVAC CONTROLLER
Table 17. Honeywell 1450 Series Transformers
(N. America) (Continued)
Part No.
Primary Side
14507287
-004 240/220 Vac
-005 240/220 Vac
-006 240/220 Vac
NOTE: Standard commercially available transformers can
also power the CPO-PC400-W/CPO-PC400-UW.

Switch Power Supply

To reduce overall current consumption, the CPO-PC400-
W/CPO-PC400-UW can be powered by a switch mode dc
power supply (rather than by a transformer).

Fusing

The choice of appropriate fusing is dependent upon the
given connection scenario (i.e., cable lengths and the use
of a primary and/or secondary transformer) and upon the
type of connected bus.
Table 18. Fusing
Designation
F1 4 A, time-lag fuse (slo-blow), e.g.,
Littlefuse type 218.004.
F2 Depends upon field devices.
F3 (Field Bus, 8 A, time-lag fuse.
only)
F4 (CP-IO 8 A, time-lag fuse or 12.5 A, timelag
Bus, only) fuse (see "Connection to a CP-IO Bus
Powered by the Separate Transformer"
section on page 30).

Power Supply of Field Devices

Field devices can be powered via the CPO-PC400-W/CPO-
PC400-UW.
When determining the total current consumption and
selecting the appropriate transformer, take into account
the number of connected modules, accessories, and field
device. Employing an additional transformer may be
necessary. The fusing (F2) of active field devices depends
upon loads in use. Single-sided (secondary-sided) earth
connection of the transformer is also possible. For more
information, see "Technical Literature" section on page 40.
Secondary Side
24 Vac, 50 VA
2 x 24 Vac, 40 VA; 100 VA
from separate
transformer
24 Vac, 100 VA; 24 Vdc,
600 mA
Description
EN0B-0085 IE10 R0420