Johnson Controls FEC26 Installation Instructions Manual page 9

Table 1: I/O Terminal Blocks, Functions, Ratings, Requirements, and Cables (Part 3 of 3)
Terminal Block Terminal
Label Labels
CONFIGURABLE OUTn
(Outputs)
OCOMn
1. See Table 2 to determine wire size and cable lengths for cables other than the recommended cables.
Table 2 defines cable length guidelines for the various
wire sizes that may be used for input and output wiring.
Table 2: Cable Length Guidelines for Recommended Wire Sizes
Guideline Wire Size/Gauge and Type
A
2
1.5 mm (18 AWG) stranded copper
0.8 mm (20 AWG) stranded copper
0.6 mm (22 AWG) stranded copper
N/A (24 AWG) stranded copper
B 2
1.5 mm (18 AWG) stranded copper
0.8 mm (20 AWG) stranded copper
0.6 mm (22 AWG) stranded copper
N/A (24 AWG) stranded copper
C See Figure 8 to select wire size/gauge.
Use stranded copper wire.
FEC26 Extended Temperature Field Equipment Controller Installation Instructions
Function, Ratings, and Requirements
Analog Output - Voltage Mode (0-10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
Requires an external load of 1000 ohm or more
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
Maximum 6 cycles/hour with M9220-BGx-3
40 mA minimum load current
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.
Binary Output Signal Common: All Configurable
Outputs defined as Binary Outputs are isolated from all
other commons, including other Configurable Output
commons.
Maximum Cable Length
and Type
457 m (1,500 ft) twisted wire
297 m (975 ft) twisted wire
183 m (600 ft) twisted wire
107 m (350 ft) twisted wire
229 m (750 ft) twisted wire
137 m (450 ft) twisted wire
91 m (300 ft) twisted wire
61 m (200 ft) twisted wire
See Figure 8 to determine
cable length. Use twisted
wire cable.
Determine Wire Size and
Maximum Cable Length
See Guideline A in Table 2.
See Guideline C in Table 2.
Same as (Configurable)
OUTn.
Assumptions
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.
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.
N/A
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