Setting the Input and Output Jumpers
Binary Output (BO) source power selection
jumpers
CAUTION
Risk of Electric Shock.
Disconnect supply power to the field controller before
attempting to adjust the Binary Output Source Power
Selection Jumpers. Failure to disconnect the supply
power may result in electric shock.
ATTENTION
Risque de décharge électrique.
Débrancher l'alimentation de l'controller avant tout
réglage du Binary Output Source Power Selection
Jumpers. Le non-respect de cette précaution risque
de provoquer une décharge électrique
Important:
Do
not
connect an external power
source to a BO when the BO power source jumper
is in the internal power (INT) position. Connecting
external power to a BO that sources internal power
can damage the controller and void any warranties.
The BO source power selection jumpers determine
whether a BO provides internal power (sourced from the
controller) to the output load (INT position) or requires
an external power source (EXT position) for the output
load. Figure 12 shows an example of a controller BOs and
the associated power selection jumpers to the right of the
BOs terminal block.
Figure 12: Example binary outputs and the associated
source power jumper positions
Universal Input current loop jumpers
The Universal Input (UI) current loop fail-safe jumpers are
on the circuit board under the controller cover near the UI
terminals (Figure 10). When a UI is defined (in the system
software) as a 4-20 mA Analog Input and the UI’s current
loop jumper is in the Disabled (default) position (Figure
13), the 4-20 mA current loop circuit opens whenever
power to the controller is interrupted or off.
Figure 13: Current loop jumper positions
Setting the current loop jumper to the Enabled position
(Figure 13) connects an internal 100 ohm resistor
across the UI terminals, which maintains the 4-20 mA
current loop circuit even when power to the controller is
interrupted or off.
Important:
Current Loop jumpers must be in the
Disabled (default) position for all UIs that are not set
up to operate as 4-20 mA analog inputs.
FEC26 current loop jumper ID table
Table 8 identifies the current loop jumpers associated with
each UI on the FEC26 controller.
Table 8: FEC26 UI Inputs and jumper labels
Universal Input label
Jumper label on circuit board
IN1
J20
IN2
J21
IN3
J22
IN4
J23
IN5
J24
FEC26 Field Equipment Controllers Installation Guide
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