Transformers; Cables - Honeywell Excel 100C Installation Instructions Manual

EXCEL 100C INSTALLATION INSTRUCTIONS

Transformers

1450 Series

Cables

max. baudrate
76800
76800
76800
76800
EN1R-0144GE51 R1105A
All transformers of the 1450 series are designed for 50/60 Hz AC and have
insulated accessory outputs. The transformers include built-in fuses, line
transient/surge protection, and AC convenience outlets and meet NEC class 2
requirements.
Table 11. Transformer specifications
part #
primary side
1450 7287
-001 120 Vac
-002 120 Vac
-003 120 Vac
-004 240/220 Vac
-005 240/220 Vac
-006 240/220 Vac
NOTE: For installations requiring UL1995 conformance, transformer primary
voltage must not exceed 150 Vac.
The cable specification depends mainly on the baud rate. There are regional
differences as to whether shielded or unshielded cable must/can be used. The table
below summarizes cable types and gives selection guidance. Note that baud rate
and maximum bus length are related to each other.
NOTE: In the U.S., shielded or unshielded cable may be used.
max. bus length cable type
4,000 ft AK 3702
4,000 ft AK 3740A
4,000 ft Belden 9842
4,000 ft Belden 9841
The general specification for shielded system bus cable above 76.8 Kbaud is as
follows:
• shielded twisted pair installation cable
• capacitance between data lines ≤ 42 pF/m (13 pF/ft)
• capacitance between data line and shield ≤ 76 pF/m (23 pF/ft)
• cross sectional area ≥ 0.5 mm
XC5010C/XC6010/Excel 100C, only
If shielded cable is used then both ends of the shield must be connected to
terminals 15 and 18, or 33 and 36, per following figure
44
secondary side
24 Vac, 50 VA
2 x 24 Vac, 40 VA, and 100 VA from separate
transformer
24 Vac, 100 VA, and 24 Vdc 600 mA
24 Vac, 50 VA
2 x 24 Vac, 40 VA, and 100 VA from separate
transformer
24 Vac, 100 VA, and 24 Vdc 600 mA
Table 12. Cable specifications
description
unshielded / twisted pair
shielded
twisted pair
shielded
2
(24 AWG)
recommended for
U.S.
U.S. (low-cost)
U.S.
U.S.