Carrier TRANSICOLD Vector 8500, Руководство по эксплуатации и обслуживанию

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f. Supply Air Temperature Sensor (1SAT)
The 1SAT is a thermistor type temperature control probe
which provides the control system with information on
the temperature of the air leaving the evaporator sec-
tion. The reading is displayed, recorded in the DataLink
data recorder and used to control the refrigeration sys-
tem. It is located in the supply air outlet housing.
2.5 SYSTEM OPERATING CONTROLS AND COM-
PONENTS
Temperature control is provided by the Carrier Transi-
cold APX™ Control System. Once the system is set at
the desired temperature, the unit will operate automati-
cally to maintain the desired temperature within very
close limits.
2.5.1 Automatic Start-Stop
Standard equipment includes an auto start-stop fea-
ture. This feature provides automatic cycling of the die-
sel engine or compressor, which in turn offers an
energy efficient alternative to continuous operation of
the system with control of temperature accomplished
by alternate cooling and heating of the supply air
(evaporator outlet air).
2.5.2 Special Features
The following additional special features are incorpo-
rated into the Carrier Transicold APX control system:
• An easy to read LCD display MessageCenter
which clearly displays all required information
• Unit Data and Advanced User selectable Func-
tional Parameters
• Programmable Maintenance Hour Meters
• Bright LED Alarm Light
• Fully Automated Pretrip
• Automated control system Self-test
• DataLink data recorder (uses System date and
time)
• Trip Start to record date/time of trip in DataLink
data recorder memory
• USB communication for downloading data,
upgrading operational software, and Configura-
tion set up
• Automatic Engine Starting
• Functional Parameter locks
• Alarms are stored in control system memory for
future reference
• “ATM style” menu system (which reduces key-
strokes)
• “Dashboard” display screens which display up to
5 data points simultaneously
• Backlit “Carrier Blue” silicone keypad makes
operation easy for drivers
2.5.3 Component Description and Location
The APX control system is an automotive style, decen-
tralized, modular system with CAN bus (Controlled
Area Network) connectivity. Hardware associated with
the system includes:
• power control module (PCM, Figure 2.2 )
• main microprocessor module (MM)
• stepper valve module (SVM)
• engine control unit (ENCU)
• standby and control boxes ( Figure 2.4 )
• control − box − mounted overload ground fault
module (OGF, Figure 2.4 )
• control − box − mounted contactor control boards
(CCB1 & CCB2, Figure 2.4 )
• display module (DM, Figure 2.2 )
NOTICE
Under no circumstances should anyone
attempt to repair sealed module internal
components. Should a problem develop
with these components, contact your
nearest Carrier Transicold dealer for
replacement.
a. Power Control Module
The power control module (PCM - see Figure 2.5 ) is
responsible for distribution of power from the battery to
the system components, when starting, and then from
the battery charger to the system components and to
the battery (for charging) once power is available.
The module houses the system relays, low voltage
fuses and the DC current transformer (CT1). The cur-
rent transformer provides a reading of the total 12 VDC
system current draw (amps) to the main microproces-
sor at terminal 2MM12 (see schematic diagram,
Sec-
tion 10 ).