Johnson Controls VMA1400 Series - Reference Information; VMA Wiring List

Mounting and Wiring VMA1400 Series Controllers Technical Bulletin
26
Reference Information
VMA Wiring List
Note: All field terminals are power limited when powered by a
Class 2 transformer.
Table 13: VMA Wiring List
Point Description
or
Application
Range Input or
Load
Impedance
Maximum
Voltage
Maximum
Current
Wire Size in
mm
2
or mm
(AWG)
Cable
Length in
Meters
(ft)
1.5 mm
2
(18) 150 (500)
AI-1*
Zone
Temperature
1K ohm
Nickel, Pt,
or Si
10K ohm 5 VDC 0.5 mA
0.6 mm (24) 30 (100)
2.25K ohm
NTC
10K ohm 5 VDC 0.5 mA 0.6 mm to
1.5 mm
2
(24 to 18)
150 (500)
1.5 mm
2
(18) 150 (500)
AI-2*
Zone
Setpoint
Aux
Temperature
1.6K ohm
1K ohm Ni,
Pt, or Si
2-wire Pot.
10K ohm 5 VDC 0.5 mA
0.6 mm (24) 30 (100)
AI-3*
Transmitter;
CO
2
Pressure
Humidity
0 to 10
VDC
1.1M ohm 16.5 VDC 15 mA 0.6 mm to
1.5 mm
2
(24 to 18)
150 (500)
1.5 mm
2
(18) 150 (500)
AI-4*
1K ohm
Nickel, Pt,
or Si
10K ohm 5 VDC 0.5 mA
0.6 mm (24) 30 (100)
Perimeter
Temperature
or Supply Air
Temperature
2.25K ohm
NTC
10K ohm 5 VDC 0.5 mA 0.6 mm to
1.5 mm
2
(24 to 18)
150 (500)
AI-5*
Velocity
Pressure
(internal)
0 to 1.5 in.
W.C.,
0.5 to 4.5
VDC
250K ohm 5 VDC 20 mA NA Internal
1.5 mm
2
(18) 150 (500)
BI-1*
Temporary
Occupied
0-5 VDC,
2.5V trig
440 ohm 5 VDC 10 mA
0.6 mm (24) 30 (100)
BI-2*
Comfort
(occupied)
0-15 VDC,
2.5V trig
47K ohm 17 VDC 0.3 mA 0.6 mm to
1.5 mm
2
(24 to 18)
150 (500)
BI-3*
Window, Off
(shutdown)
0-15 VDC,
2.5V trig
47K ohm 17 VDC 0.3 mA 0.6 mm to
1.5 mm
2
(24 to 18)
150 (500)
1.5 mm
2
(18) 150 (500)
AO-1*
Proportional
Heat/
Humidity
Dpr. Actuator
Fan Speed
0-10 VDC 1K-10M ohm 10 VDC 10 mA
0.6 mm (24) 60 (200)
Continued on next page . . .