Table 3: FEC16 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
Table 4
.
Analog Input - Voltage Mode (0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohm Pull-down
INn
See Guideline
B
in
Table 4
.
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
Universal Input
Current Loop Jumpers
.
See Guideline
A
in
Table 4
.
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 (10k Type L, 10k JCI Type II, 2.252k Type
II)
See Guideline
A
in
Table 4
.
Binary Input - Dry Contact Maintained Mode
1 second minimum pulse width
Internal 12 V. 15k ohm 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
See Guideline
A
in
Table 4
.
Binary Input - Dry Contact Maintained Mode
0.01 second minimum pulse width
Internal 18 V, 3k ohm pull up
INn
BINARY
(Inputs)
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
Binary Input Common
for all Binary Input (IN) terminals
Note:
All Binary ICOM
n
terminals share a common, which
is isolated from all other commons, except the Configurable
Output (CO) common (OCOM
n
) when the CO is defined
as an Analog Output.
ICOMn
15
FEC1611 and FEC1621 Field Equipment Controller Installation Instructions