Table 3: FEC26 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length
Function, Ratings,
Requirements
Terminal Label
Terminal Block Label
Same as (Universal)
INn
Note:
Use 3-wire cable for
devices that source
power from the +15V
terminal.
15 VDC Power Source
for
active (3-wire) input devices
connected to the Universal IN
n
terminals.
Provides 100 mA total current
+15 V
UNIVERSAL
(Inputs)
See Guideline
A
in
Analog Input - Voltage Mode
(0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohms Pull-down
INn
See Guideline
B
in
Analog Input - Current Mode
(4–20 mA)
Internal 100 ohms load
impedance
Note:
A current loop fail-safe
jumper can be
positioned to maintain
a closed 4 to 20 mA
current loop, even
when the power to the
controller is interrupted
or off. See the
Universal Input Current
Loop Jumpers
section.
See Guideline
A
in
Analog Input - Resistive
Mode (0–600k 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 (10k Type L, 10k JCI
Type II, 2.252k Type II)
See Guideline
A
in
Binary Input - Dry Contact
Maintained Mode
1 second minimum pulse width
Internal 12 V. 15k ohms pull up
Same as (Universal)
INn
Universal Input Common
for
all Universal Input terminals
Note:
All Universal ICOM
n
terminals share a
common, which is
isolated from all other
commons.
ICOMn
15
FEC26Field Equipment Controllers Installation Instructions