Table 2: FAC2611 terminal blocks, functions, ratings, requirements, and cables
Terminal block label
Terminal
label
Function, ratings, requirements
Determine wire size and
maximum cable length
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohm or more.
See Guideline A in Table 3.
OUTn
Binary Output - 24 VAC Triac (External Power Source only)
Connects OUTn to OCOMn when activated.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
Maximum 6 cycles/hour with M9220BGx-3
40 mA minimum load current
See Guideline C in Table 3.
CONFIGURABLE
(Outputs)
OCOMn
Analog Output Signal Common All Configurable Outputs
(COs) defined as Analog Outputs (AOs) share a common,
which is isolated from all other commons except the Binary
Input common.
Binary Output Signal Common All Configurable Outputs
(COs) defined as Binary Outputs are isolated from all other
commons, including other CO commons.
Same as (Configurable) OUTn.
Cable and wire length guidelines
The following table 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 3: Cable length guidelines for recommended wire sizes for low-voltage (<30 V) Inputs and Outputs
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
0.6 mm (22 AWG) stranded copper 183 m (600 ft) twisted wire
A
0.5 mm (24 AWG) stranded copper 107 m (350 ft) twisted wire
100 mV maximum voltage drop
Depending on cable 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 137 m (450 ft) twisted wire
0.6 mm (22 AWG) stranded copper 91 m (300 ft) twisted wire
B
0.5 mm (24 AWG) stranded copper 61 m (200 ft) twisted wire
100 mV maximum voltage drop
Depending on cable 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 8 to select wire size/gauge. Use
stranded copper wire
See Figure 8 to determine cable
length. Use twisted wire cable.
N/A
Maximum cable length versus load
current
Use Figure 8 to estimate the maximum cable length
relative to the wire size and the load current (in mA) when
wiring inputs and outputs.
Note: Figure 8 applies to low-voltage (<30 V) inputs
and outputs only.
FAC2611 Advanced Application Field Equipment Controller Installation Guide 9
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