3.3 Display–Local Indication
Fig. 3.2 The Actuator Display
The display consists of:
1. Position Display - This is the main
7-segment position display with icons.
2. Text Display - This is a 2 line, 16
characters dot matrix display which
allows text to be used to compliment
the position display and icons.
3. Infra Red LED's.
4. 1 x Bi colour LED, 1 x Amber colour
LED for position indication.
5. Alarm Icon - This will be displayed
for Valve, Control, and Actuator alarms.
Alarm indication is supported by fault
description text in the lower display.
6. Battery Alarm Icon - This icon will be
displayed when a battery is detected as
low or flat. "Battery low" or "flat" will
also be displayed in the lower display.
7. IR Icon - This icon flashes during infra
red communication activity.
8. Percentage Open Icon - This icon will
be displayed when a percentage Open
value is in the upper display.
The liquid crystal display screen has 2
modes of position indication:
1. Valve position – power on
2. Valve position – power off
On power up the actuator’s liquid
crystal display screen is back-lit with an
amber light and one of the indicator
lamps will be on, dependent on
position. The display screen will show
percentage open or an end of travel
symbol. (See Figs 3.3, 3.4 and 3.5)
As standard, red lamp signifies valve
open, amber intermediate, and green
lamp signifies valve closed. Open and
closed colour functions can be reversed
on request.
Open
The two tri-colour LED's will be Red,
the open symbol and "Open Limit" will
be displayed
Fig. 3.3
Mid Travel
The two tri-colour LED's will be Amber,
percentage open value will be shown
and "Stopped" will be displayed when
there is no actuator movement.
Fig. 3.4
Closed
The two tri-colour LED's will be Green,
closed symbol and "Closed Limit" will
be displayed.
Fig. 3.5
With the main power supply switched
off, the display screen is powered by
a battery and continues to display
actuator position. However, the battery
does not support screen back-lighting,
position indicator lamps or dot matrix
display.
LED Indicators
WARNING: Mid Travel LED
colour may be affected by viewing
angle and lighting level.
The Close LED colour can be changed
to red if required. The Mid Travel amber
LED can be switched off if required.
Refer to Section 9.16, page 58.
4
Open Limit
Closed Limit
Stopped
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