Removing the Controller cover
Important:
Electrostatic discharge can
damage controller components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid
damaging the controller.
Important:
Disconnect all power sources to
the controller before you remove the cover and
change the position of any jumper or the EOL
switch on the controller. Failure to disconnect
power before changing a jumper or EOL switch
position can result in damage to the controller
and void any warranties.
The controller cover is held in place by four
plastic latches that extend from the base and
snap into slots on the inside of the housing
cover.
To remove the controller cover, complete the
following steps:
1. Place your fingertips under the two cover lift
tabs on the sides of the housing cover and
gently pry the top of the cover away from the
base to release the cover from the two upper
latches.
2. Pivot the top of the cover further to release it
from the lower two latches.
3. Replace the cover by placing it squarely over
the base, and then gently and evenly push the
cover on to the latches until they snap into the
latched position.
Setting the Input 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.
UI current loop jumpers
The UI current loop fail-safe jumper pins are located
on the circuit board under the controller cover near
the UI terminals.
Figure 8: Current loop jumper positions
Set the current loop jumper to the Enabled position
(Figure 8) to connect an internal 100 ohms 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.
The following table identifies the current loop
switches associated with each UI on the controller.
Table 7: UI Inputs and Jumper Labels
IN1
J5
IN2
J6
IN3
J7
IN4
J8
IN5
J9
IN6
J10
IN7
J11
IN8
J12
IN9
J13
IN10
J14
FAC4911 Advanced Application Field Equipment Controller Installation Guide
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