I/O Terminal blocks, ratings, and requirements - Metasys - MS-FAC3611 - Field Device - FAC36 Advanced Application Field Equipment Controller

Table 1. 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 ohms pull-down	See Guideline A in Table 1.
		Analog Input - Current Mode (4–20 mA) Internal 100 ohms load impedance. See Setting the Input Jumpers. Note: A current loop fail-safe jumper must be in the Enable position to maintain a closed 4 to 20 mA current loop. See UI current loop jumpers.	See Guideline B in Table 1.
		Analog Input - Resistive Mode (60–600k ohms) Internal 12 V. 15k ohms pull-up Qualified Sensors: 0–2k ohms 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 ohms 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, except the SA bus common. One common screw terminal point is provided for every two input screw terminal points.	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 ohms 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 ohms 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.
ANALOG (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 ohms or more. Note: The Analog Output (AO) operates in the Voltage Mode when connected to devices with impedances greater than 1,000 ohms. 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 ohms. Note: The Analog Output (AO) operates in the Current Mode when connected to devices with impedances less than 300 ohms. Devices that exceed below 300 ohms 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. One common screw terminal point is provided for every two output screw terminal points.
BINARY (Output)	OUT n	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	See Guideline C in Table 1.
BINARY (Output)	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.