Thermo King T-1080S, Maintenance Manual

Page: 36 / 191

Operating Instructions for Standard HMI Control Panel
35
Keys and LED Indicators
There are nine touch sensitive keys. Some of
these keys have more than one function as shown
in Figure 12.
Figure 12: Keys and LED Indicators
There are amber indicator LED's located next to
each of the four function keys below the display.
The LED will glow amber when that function is
active.
A red indicator LED is located between the ON
Key and OFF Key at the left side of the display.
This indicator will glow if Alarm Code 91 Check
Electric Ready Input occurs. It will also light if a
15 pin Thermo King data cable is connected to the
serial port on the back of the controller (DPD).
The primary and secondary key uses are shown in
the table below. If the key has more than one use
the primary use is shown first.
ON Key
Pressing the ON Key will turn the unit on.
Secondary Use - When the unit is on, pressing this key and the PRETRIP Key at the same time
will display any alarm codes that are present.
Secondary Use - When the unit is on, pressing and holding this key allows the UP ARROW Key
and DOWN ARROW Key to increase or decrease the display brightness.
Secondary Use - When the unit is on, pressing this key will return to the Standard Display of box
temperature and setpoint.
POWER OFF Key
Pressing the OFF Key will turn the unit off.
UP ARROW Key
When the unit is turned on and the Standard Display is shown, pressing the UP ARROW Key will
increase the setpoint.
Secondary Use - When alarms are being displayed, pressing this key will scroll thru the alarms (if
more than one alarm is present).
Secondary Use - While holding ON Key down with the unit turned on, pressing this key will
increase the display brightness (Low, Medium, High).
DOWN ARROW Key
When the unit is turned on and the Standard Display is shown, pressing the DOWN ARROW Key
will decrease the setpoint.
Secondary Use - While holding ON Key down with the unit turned on, pressing this key will
decrease the display brightness (High, Medium, Low).
ENTER Key
If the setpoint has been changed using the UP ARROW Key and/or DOWN ARROW Key, pressing
the ENTER Key enters the setpoint into the base controllers memory.
Secondary Use - When alarms are being displayed, pressing this key will clear the alarm shown on
the display.
Secondary Use - When the unit is turned on, press and hold this key for 5 seconds to send a Start
of Trip (SOT) to the data logger.