Bernard Controls INTEGRAL+ Manuel De Mise En Service page 24

PROBLEM
The actuator
operates
in local open/close
control mode,
not in positioner mode
The actuator
operates in positioner
mode in local mode,
not in remote mode
The actuator
does not follow
the input signal
24
CAUSE
Bad connection between
GAM-K (positioner)
and CI2701 boards
The actuator repeater
potentiometer
is incorrectly set
Input signal incorrect
The auto - 0% - 100%
switch is not set to Auto
Defective signal
Signal polarity
Potentiometer
reversemounted
Signal reversed or configu-
ration incorrect
Rotational direction
reversed
The actuator repeater
potentiometer
is incorrectly set
CORRECTIVE ACTION
Check the positioner board-Integral board
connection.
Turn the actuator potentiometer
by a 1/4 turn and adjust as described
in commissioning instructions.
Check input signal configuration
on the positioner board:
4-20 mA signal:
Switches 4, 9 and 10 set to A
0-20 mA signal:
Switches 4 and 8 set to B
Switches 9 and 10 set to A
0-10 V signal:
Switches 4, 8, 9 and 10 set to B
Check setting of Auto - 0% - 100% switch
on the positioner board.
Check the reference signal using a milliampe-
remeter connected in series (terminal 30).
Check that the plus (+) of the signal is
present at terminal 30
Check the potentiometer connection.
The potentiometer should be connected
to POT STD for:
• 4 mA (or (0 mA or 0 V according to signal) =
closed position and clockwise direction closing.
• 4 mA (or (0 mA or 0 V according to signal) =
open position and counterclockwise direction
closing
The potentiometer should be connected to POT
REV for:
• 4 mA (or (0 mA or 0 V according to signal) =
closed position and counterclockwise
direction closing.
• 4 mA (or (0 mA or 0 V according to signal) =
open position and clockwise direction closing
Check signal configuration
Switch 3 on positioner board:
Position A: 4 mA = valve closed
Position B: 4 mA = valve open
Check rotation direction configuration.
Switch 3 on CI2701 board:
Position A: clockwise direction closing
Position B: counterclockwise direction opening
Turn the actuator potentiometer
by a quarterturn and repeat adjustments
in accordance with commissioning instructions.