Thermo King CRR-40 119, Manual

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MP-3000a Controller
Controller Description
The MPC2000ID and MP-3000a are both
advanced micro-processor controllers that have
been specially developed for the control and
monitoring of refrigeration units. Each controller
contains the following basic features:
1. LED display for TEMPERATURE:
• Five alpha numeric, 20.32 mm high
characters: Numerical hundredths, tens,
ones and tenths position, a C for Celsius or
F for Fahrenheit for temperature display.
• LED display shows controlling (return or
supply) sensor temperature. Sensor
temperature shown in LED display is
indicated by status indicator lights. If a
sensor is out of range the display shows
“+Err” or “-Err”. The +/-sign indicates
whether the sensor temperature is out of
range high or low.
• The LED display also shows the test stage
of a Pretrip (PTI) or Function test.
2. LCD display for SETPOINT, MESSAGES
and MENU:
• 4 line, 20 character LCD display shows
setpoint temperature during normal
operation.
• Alarms, messages and the controller menu
also appear in the LCD display when
special keys are pressed.
3. Sixteen general purpose keys are used to enter
text and scroll through the controller menu
tree.
a. Text Input: The keyboard supports both
numerical and text input. Each key can
have more than one meaning. Use the
special text keys F1, F2, F3 and F4 to
enter text in an information screen:
• F1 key: Press the F1 key, then press
another general purpose key to enter the
number shown on the key.
• F2 key: Press the F2 key, then press
another general purpose key to enter the
first letter shown on the key.
• F3 key: Press the F3 key, then press
another general purpose key to enter the
second letter shown on the key.
• F4 key: Press the F4 key, then press
another general purpose key to enter the
third letter shown on the key.
NOTE: When the F1, F2, F3 or F4 key is
pressed to enter a character in the display,
the keypad remains on that “character level”
until another “level” is selected by pressing
the F1, F2, F3 or F4 key.
1. LED display for TEMPERATURE. Status
indicator LEDS identify controlling sensor
temperature (return or supply) that appears in
display.
2. LCD display for SETPOINT, EMSSAGES and
MENU. Use the keypad to scroll through
messages and the controller menu.
3. General purpose keys are used to enter text
and scroll through menus.
4. Special function keys perform specific tasks.
Figure 13: Controller
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AJA1413