Johnson Controls FEU2610 Series, Installation Instructions Manual

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FEU2610 Field Equipment Controller Installation Instructions
10
SA Bus
2 ,3 +
- Provides SA Bus communication network. 0.6 mm (22 AWG) stranded, 4-wire
twisted, shielded cable
recommended
COM Provides reference for network communication bus and
15 VDC source power.
SA PWR Sources 15 VDC power for devices on the SA Bus
FC Bus
Terminal
Block
3
+
-
COM Provides FC Bus communication network. 0.6 mm (22 AWG) stranded, 3-wire
twisted, shielded cable
recommended
SHLD Provides an optional shield connection.
FC Bus Port FC Bus Not used with MS-FEU2610-0U.
RJ-12 6-position modular connector BTCVT retractable cable or
24 AWG 3-pair CAT 3 Cable
<30.5 m (100 ft)
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
COM The 24~ Power common; isolated from all other terminal
commons.
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 9 . See Figure 9 . N/A
Table 1: Field Controller Platform Wiring List (Part 3 of 3)
Terminal
Block Terminal
Labels Function and Electrical Ratings/Requirements Recommended Cable Type
and Length
1