Johnson Controls Metasys MS-FEU1610-0U, Installation Instructions Manual

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FEU16x0 Field Equipment Controller Installation Instructions
9
24~ Power Hot AC Supply Input
Supply 20-30 VAC (Nominal 24 VAC) 0.8 mm to 1.0 mm
(20 to 18 AWG) 2-wire
SHLD Provides an optional shield connection.
1. See
Table 2
for alternative wire gauges and lengths.
2. The SA Bus terminals and the RJ-style modular Sensor Port are connected internally.
3. The SA Bus and FC Bus specifications in this table are for MS/TP bus communications at 38.4k baud. For more
information, refer to the
MS/TP Communications Bus Technical Bulletin (LIT-12011034) .
Table 2: Wire Gauge and Length Guidelines
Guideline Cable Size Maximum
Length Assumptions
A 1.0 mm (18 AWG) 457.2 m (1,500 ft) 100 mV maximum voltage drop
0.8 mm (20 AWG)
297.2 m (975 ft)
0.6 mm (22 AWG)
182.9 m (600 ft)
0.5 mm (24 AWG) 106.7 m (350 ft)
B 1.0 mm (18 AWG) 228.6 m (750 ft) 100 mV maximum voltage drop
0.8 mm (20 AWG)
137.1 m (450 ft)
0.6 mm (22 AWG)
91.4 m (300 ft)
0.5 mm (24 AWG) 61 m (200 ft)
C
See
Figure 7
. See
Figure 7
.
N/A
Table 1: FEC Terminal Blocks, Functions, Ratings, Requirements, and Cables (Part 3 of 3)
Terminal
Block Terminal
Labels Function and Electrical Ratings/Requirements Recommended Cable Type
and Length
1