HMI Control Panel
The HMI control panel has a display and eight touch sensitive keys. The display is capable of showing both text and graphics. The four keys on the left and right sides of the display are dedicated keys. The four keys under the display are “soft” keys. The function of “soft” keys change depending on the operation being performed. If a soft key is active, its function will be shown in the display directly above the key.
Control Panel Display
The display is used to supply unit information to the operator. This information includes setpoint, current box temperature operating information, unit gauge readings, system temperatures and other information as selected by the operator.
The default display is called the Standard Display. It is shown below and will be described in detail later in this chapter.
1. | On Key (Dedicated Key) | |||
2. | Off Key (Dedicated Hard Key) | |||
3. | Display | |||
4. | Defrost Key (Dedicated Key) | |||
5. | CYCLE-SENTRY/Continuous Mode Key (Dedicated Key) | |||
6. | Soft Keys |
Control Panel Keys
The four keys on the left and right sides of the display screen are “dedicated keys”. Their functions are listed below.
On Key: Used to turn the unit on. First the display
will briefly show the Thermo King Logo and then the statement |
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Off Key: Used to turn the unit off. First, the display
will briefly show |
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Defrost Key: Press this key to initiate a Manual Defrost cycle. |
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CYCLE SENTRY/Continuous Mode Key: Press this key to switch back and forth between the CYCLE-SENTRY mode and the Continuous Run mode. If OptiSet Plus is in use, it may not be possible to change the Mode. |
The four “soft” keys under the display are multi-purpose keys. Their function changes depending on the operation being performed. If a soft key is active, the key function is shown in the display directly above the key. The keys are numbered from left to right, with Key 1 on the far left and Key 4 on the far right. |
Typical soft key applications:
SETPOINT | SENSORS | NEXT/BACK | + or - | CLEAR/HELP |
GAUGES | MENU | YES/NO | SELECT/EXIT | HOURMETERS |