Carrier PrimeLINE 69NT40-561-200, Operation And Service Manual

Page: 41 / 198

4–1 T-362
SECTION 4
MICROPROCESSOR
4.1 Temperature Control Microprocessor System
The temperature control Micro-Link 3 microprocessor system consists of a control module (controller), keypad,
display module and interconnected wiring.
4.1.1 Controller
The controller (see
Figure 4.1
) is fitted with test points, harness connectors and a software card programming port.
The controller contains temperature control software and DataCORDER software. The temperature control
software (see Section 4.2 ) functions to operate the unit components as required to provide the desired cargo
temperature and humidity. The DataCORDER software (see Section 4.6 ) functions to record unit operating
parameters and cargo temperature parameters for future retrieval.
Read the Controller Service section (see
Section 7.27 ), including all caution statements, before performing any
service on the controller.
Figure 4.1 Controller
1) Micro-Link 3 Controller / DataCORDER Module
2) Mounting Screw
3) Connectors
4) Test Points
5) Fuses
6) Control Circuit Power Connection
7) Software Programming Port
8) Battery Pack (Standard Location)
- - - - -
4.1.2 Display Module and Keypad
The display module and keypad (see Figure 4.2 ) are mounted on the control box door and serve to provide user
access and readouts for both of the controller functions, temperature control and DataCORDER. The functions are
accessed by keypad selections and viewed on the display module.
Figure 4.2 Display Module and Keypad
MA
CONTROLLER
Micro-Link3 With
DataCORDER
MB MC
F2
(5A)
TP F1
(5A)
F3A
(7.5A)
F3B
(7.5A)
KH
OC1
KA
EN12830
CARRIER
S/N: 0491162
T B C1
KE
REV 5147 YYWW:
KD
1035
KC
12-00579-00
59980
KB
1
2
3 4
5
3 6
3
8
3 7
CODE
SELECT
PRE
TRIP
ALARM
LIST
MANUAL
DEFROST/
INTERVAL
ENTER
BATTERY
POWER
ALT
MODE
RETURN
SUPPLY
C
F