Johnson Controls M4-CVM03050, Руководство по установке

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Table 5: I/O terminal blocks, functions, ratings, requirements, and cables
Terminal Block label Terminal labels Function, ratings, and requirements
To determine wire size and
maximum cable length
OUT n
Binary Output - 24 VAC Triac (Internal Power)
Sources internal 24 VAC power (24~ HOT)
See Guideline C in Table 6.
BINARY
(Outputs)
OCOM n
Binary Output - 24 VAC Triac (Internal Power)
Connects OCOMn to 24~ COM when activated.
Internal 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
See Guideline C in Table 6.
Cable and wire length guidelines
Table 6 defines cable length guidelines for the various wire sizes that may be used for wiring low-voltage
(<30 V) input and outputs.
Note: The required wire sizes and lengths
for high-voltage (>30 V) Relay Outputs are
determined by the load connected to the relay,
and local, national or regional electrical codes.
Table 6: Cable length guidelines for recommended wire sizes
Guideline Wire size/gauge and type
Maximum cable length and
type
Assumptions
1.0 mm (18 AWG) stranded copper 457 m (1,500 ft) twisted wire
0.8 mm (20 AWG) stranded copper
297 m (975 ft) twisted wire
297 m (975 ft) twisted wire
0.6 mm (22 AWG) stranded copper
183 m (600 ft) twisted wire
183 m (600 ft) twisted wire
A
0.5mm (24 AWG) stranded copper
107 m (350 ft) twisted wire
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.
1.0 mm (18 AWG) stranded copper 229 m (750 ft) twisted wire
0.8 mm (20 AWG) stranded copper
297 m (975 ft) twisted wire
137 m (450 ft) twisted wire
0.6 mm (22 AWG) stranded copper
183 m (600 ft) twisted wire
91 m (300 ft) twisted wire
B
0.5 mm (24 AWG) stranded copper
107 m (350 ft) twisted wire
61 m (200 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.
C
See Figure 9 to select wire size/
gauge.
Use stranded copper wire.
See Figure 9 to determine cable
length.
Use twisted wire cable.
N/A
M4-CVM03050 VAV Controllers Installation Guide 10