Johnson Controls Metasys FAC4911 User Manual

Table 3: I/O 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
Requires an external load of 1,000 Ω or more.
Note: The Analog Output (AO) operates in the
Voltage Mode when connected may not operate as
intended for Voltage Mode applications.
O
.
Note: The Analog Output (AO) operates in the
Current Mode when connected to devices with
impedances less than 300 Ω. Devices that exceed
below 300 Ω may not operate as intended for
Current Mode applications.
ANALOG
(Outputs)
OCOMn
Analog Output Signal Common for all Analog OUT
terminals.
Note: All Analog Output Common terminals
(OCOMn) share a common, which is isolated from
all other commons. One common screw terminal
point is provided for every two output screw
terminal points.
See Guideline C in Table .
OUTn
Binary Output - 24 VAC Triac Class 2, 24 V, 500 mA
(External Power Source)
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
40 mA minimum load current
BINARY
(Output)
OCOMn
Binary Output Common (for OUTn terminal)
Note: Each Binary Output Common terminal
(OCOMn) is isolated from all other commons,
including other Binary Output Common terminals.
See Guideline C in Table .
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
or more.
See Guideline A in Table
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
40 mA minimum load current
See Guideline C in Table
CONFIGURABLE
(Output)
OCOMn
Analog and 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
FAC4911 Advanced Application Field Equipment Controller Installation Guide 9

Johnson Controls Metasys FAC4911 Specifications

General

Brand	Johnson Controls
Model	Metasys FAC4911
Category	Controller
Language	English