Johnson Controls VMA1630 Installation Instructions

Table 3: I/O Terminal Blocks, Functions, Ratings, Requirements, and Cables
To Determine Wire Size
and Maximum Cable
Length
1
Function, Ratings, and RequirementsTerminal
Labels
Terminal Block Label
See Guideline A in Table 4.
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
External 1k to 50k ohm load required
OUTn
CONFIGURABLE
(Outputs)
See Guideline C in Table 4.
Binary Output 24 VAC Triac
Connects OUT to OCOM when activated.
External Power Source:
30 VAC maximum voltage to load
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
Same as (Configurable) OUTn.
Analog Output Signal Common: All
Configurable Outputs defined as Analog Outputs
share a common, which is isolated from all other
commons except the Binary Input common.
OCOMn
Binary Output Signal Common: All
Configurable Outputs defined as Binary Outputs
are isolated from all other commons, including
other Configurable Output commons.
1
Table 4 defines cable length guidelines for the various wire sizes that may be used for input and output wiring.
Table 4: Cable Length Guidelines for Recommended Wire Sizes
AssumptionsMaximum Cable Length
and Type
Wire Size/Gauge and TypeGuideline
100 mV maximum voltage drop
Depending on the cable length
and the connected input or
output device, you may have to
define an offset in the setup
software for the input or output
point.
457 m (1,500 ft) twisted wire1.0 mm (18 AWG) stranded copperA
297 m (975 ft) twisted wire0.8 mm (20 AWG) stranded copper
297 m (975 ft) twisted wire
183 m (600 ft) twisted wire0.6 mm (22 AWG) stranded copper
183 m (600 ft) twisted wire
107 m (350 ft) twisted wire0.5mm (24 AWG) stranded copper
107 m (350 ft) twisted wire
100 mV maximum voltage drop
Depending on the cable length
and the connected input or
output device, you may have to
define an offset in the setup
software for the input or output
point.
229 m (750 ft) twisted wire1.0 mm (18 AWG) stranded copperB
137 m (450 ft) twisted wire0.8 mm (20 AWG) stranded copper
297 m (975 ft) twisted wire
91 m (300 ft) twisted wire0.6 mm (22 AWG) stranded copper
183 m (600 ft) twisted wire
61 m (200 ft) twisted wire0.5 mm (24 AWG) stranded copper
107 m (350 ft) twisted wire
N/A
See Figure 8 to determine
cable length.
Use twisted wire cable.
See Figure 8 to select wire
size/gauge.
Use stranded copper wire.
C
13VMA1615/1626/1628/1630 VAV Controllers Installation Instructions

Johnson Controls VMA1630 Specifications

General

Brand	Johnson Controls
Model	VMA1630
Category	Controller
Language	English