Input and Output wiring guidelines - Metasys - MS-FAC2611 - Field Device - FAC26 Advanced Application Field Equipment Controller

Table 1 provides information and guidelines about the functions, ratings, and requirements for the controller input and output terminals; and references guidelines for determining proper wire sizes and cable lengths.

In addition to the wiring guidelines in Table 1, observe these guidelines when wiring controller inputs and outputs:

Run all low-voltage wiring and cables separate from high-voltage wiring.
All input and output cables, regardless of wire size or number of wires, should consist of stranded, insulated, and twisted copper wires.
Shielded cable is not required for input or output cables.
Shielded cable is recommended for input and output cables that are exposed to high electromagnetic or radio frequency noise.
Inputs/outputs with cables less than 30 m (100 ft) typically do not require an offset in the software setup. Cable runs over 30 m (100 ft) may require an offset in the input/output software setup.

Table 1. FAC2611 terminal blocks, functions, ratings, requirements, and cables
Terminal block label	Terminal label	Function, ratings, requirements	Determine wire size and maximum cable length
UNIVERSAL (Inputs)	+15 V	15 VDC Power Source for active (3-wire) input devices connected to the Universal INn terminals. Provides 100 mA total current	Same as (Universal) IN n Note: Use 3-wire cable for devices that source power from the +15V terminal.
	IN n	Analog Input - Voltage Mode (0–10 VDC) 10 VDC maximum input voltage Internal 75k ohm Pull-down	See Guideline A in Table 1.
		Analog Input - Current Mode (4–20 mA) Internal 100 ohm load impedance Note: Current loop jumpers are fail-safe to maintain a closed 4 to 20 mA current loop, even when the power to the controller is interrupted or off. See UI current loop jumpers.	See Guideline B in Table 1.
		Analog Input - Resistive Mode (0–600k ohm) Internal 12 V. 15k ohm pull up Qualified Sensors: 0-2k ohm potentiometer, RTD (1k Nickel [ Johnson Controls® sensor], 1k Platinum, and A99B Silicon Temperature Sensor) Negative Temperature Coefficient (NTC) Sensor	See Guideline A in Table 1.
		Binary Input - Dry Contact Maintained Mode 1 second minimum pulse width Internal 12 V. 15k ohm pull up	See Guideline A in Table 1.
	ICOM n	Universal Input Common for all Universal Input terminals Note: All Universal ICOMn terminals share a common, which is isolated from all other commons.	Same as (Universal) IN n
BINARY (Inputs)	IN n	Binary Input - Dry Contact Maintained Mode 0.01 second minimum pulse width Internal 18 V. 3k ohm pull up	See Guideline A in Table 1.
	IN n	Binary Input - Pulse Counter/Accumulator Mode 0.01 second minimum pulse width (50 Hz at 50% duty cycle) Internal 18 V. 3k ohm pull up
	ICOM n	Binary Input Common for all Binary Input (IN) terminals Note: All Binary ICOMn terminals share a common, which is isolated from all other commons, except the Configurable Output (CO) common (OCOMn) when the CO is defined as an Analog Output.
ANALOG (Outputs)	OUT n	Analog Output - Voltage Mode (0–10 VDC) 10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1,000 ohm or more. Note: The Analog Output (AO) operates in the Voltage Mode when connected to devices with impedances greater than 1,000 ohm. Devices that drop below 1,000 ohm may not operate as intended for Voltage Mode applications.	See Guideline C in Table 1.
	OUT n	Analog Output - Current Mode (4–20 mA) Requires an external load between 0 and 300 ohm. Note: The Analog Output (AO) operates in the Current Mode when connected to devices with impedances less than 300 ohm. Devices with impedances greater than 300 may not operate as intended for Current Mode applications.
	OCOM n	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.
BINARY (Output) Power Selection Jumper positioned to External (EXT) power.	OUT n	Binary Output - 24 VAC Triac (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 Maximum 6 cycles/hour with M9220BGx-3 40 mA minimum load current	See Guideline C in Table 1.
	OCOM n	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 1.
BINARY (Output) Power Selection Jumper positioned to Internal (INT) power.	OUT n	Binary Output - 24 VAC Triac (Internal Power Source) Sources internal 24VAC power (24~ HOT).	See Guideline C in Table 1.
	OCOM n	Binary Output - 24 VAC Triac (Internal Power Source) Connects OCOMn to 24~ when activated. Internal Power Source: 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 1.
CONFIGURABLE (Outputs)	OUT n	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 1.
	OUT n	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 1.
	OCOM n	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) OUT n.