BASIC OPERATION
E-BUS Digital Room Sensor Technical Guide
4
Figure 3: E-BUS Digital Room Sensor Components
Alarm LED
Sense
LED
Override
LED
Override
Button
Display
Button
Up
Button
Down
Button
LCD
Display
Cover Set
Screw
MI
CR
O
C
H
IP
PI
C
24
H
J
25
6G
P2
06
Back View
Remote Thermistor
Sensor Connector
Front View
E-BUS Cable
Connection
+12Vdc
GND
-COM
SHLD
Comm LED
(Not visible
with back
cover on)
Display
Override
OVERRIDE
ALARM
Sensor Operation
When power is fi rst applied to the ASM01819 E-BUS Digital Room
Sensor, the sensor will display the Current Room Temperature and
the current setting of the slide off set. The ASM01820 model will also
display Relative Humidity.
NOTE:
The sensor readings are not accurate until the controller
that the sensor is connected to is done calibrating.
The sensor has 4 buttons—
<Display>
,
<Override>
,
<Up>
, and
<Down>
. You can also access certain functions by
touching
the area
below the
<Display>
and
<Override>
buttons. The sensor has 4
LEDs—one to indicate an Override, one to indicate an Alarm, one to
indicate Communications, and one to indicate that a button has been
pressed. See
Figure 3
for LED and Button Descriptions.
An icon for the current mode of operation will appear in the sensor
display. The operation mode icons are a Snowfl ake for Cooling Mode,
a Flame for Heating Mode, a Fan in motion for Vent Mode, and a Moon
for Unoccupied Mode. When the unit is in Unoccupied Mode, the
screen’s background will turn dark. See
Figure 9
,
page 7
for examples
of operation modes.
Buttons and LEDs
LED Operation
Refer to
Figure 3
for LED locations.
Alarm LED:
The Alarm LED will blink when there is an alarm from
the Controller.
Sense LED:
The Sense LED will blink when the sensor gets a valid
touch.
Override LED:
The Override LED is inoperable when in Occupied
Mode. In Unoccupied Mode, if you
touch
the
<Override>
button, the
Override LED will blink, indicating an override request. The Control-
ler will respond by sending the unit into override. The Override LED
will then stay on for the duration of the Override. Any time the Unit
is in Override, you can request to cancel the override by
touching
the
<Override>
button, and the Override LED will blink. The Unit will
then cancel the override. The Override LED will then turn off .
Comm LED:
The Comm LED located on the back of the sensor
blinks on whenever communications are sensed.
Содержание Orion ASM01819
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