Johnson Controls VMA1630 Installation Instructions

Figure 8: Maximum Wire Length by Current and Wire Size
Table 5: Communication Bus and Supply Power Terminal Blocks, Functions, Ratings, Requirements, and
Cables
Recommended Cable Type
1
Function, Electrical
Ratings/Requirements
Terminal LabelsTerminal Block/Port Label
0.6 mm (22 AWG) stranded, 3-wire
twisted, shielded cable
recommended
FC Bus Communications+
-
FC BUS
2
Signal Reference (Common) for bus
communications
COM
Isolated terminal (optional shield drain
connection)
SHLD
0.6 mm (22 AWG) stranded, 4-wire
(2 twisted-pairs), shielded cable
recommended
Note: The + and - wires are one
twisted pair, and the COM
and SA PWR wires are the
second twisted pair.
SA Bus Communications+
-
SA BUS
2
SA Bus Signal Reference and 15 VDC
Common
COM
15 VDC Supply Power for Devices on
the SA Bus
SA PWR
24 AWG 3-pair CAT 3 Cable
<30.5m (100 ft)
RJ-12 6-Position Modular Port
provides FC Bus Communications
FC Bus provides 15 VDC Power for:
• Wireless Bluetooth®
Commissioning Converter
• Wireless ZigBee® Field Bus
Router
FC BUS
FC BUS
2
14VMA1615/1626/1628/1630 VAV Controllers Installation Instructions

Johnson Controls VMA1630 Specifications

General

Brand	Johnson Controls
Model	VMA1630
Category	Controller
Language	English