Carrier VECTOR 1800 MT, Operation & Service Manual

Page: 79 / 315

62-11039 3-29
3.19 DATA RECORDING
The Advance Microprocessor contains a built--in Data
Recorder with 512K of memory. The Data Recorder
reads the same input information as the microprocessor
(Functional Parameters, Configurations, and Unit Data)
at all times. The Data Recorder records events as they
occur, such as setpoint changes and Defrost Initiation
and Termination, and also records all data values
including temperature and pressure sensors in either
averaged or snapshot format. The details are provided
below.
3.19.1 Microprocessor Information
The microprocessor information that is available to be
recorded is as follows:
Data Recorder Setup (Logging Intervals, Events and
Sensors)
Data Recorder Time Clock Date / Time
Setpoints (And all setpoint changes.)
ID Number
Unit Serial Number
Unit Model Number
Current System Mode
Functional Parameters
Controller Configurations
3.19.2 Data Recording
The Data Recorder data comes from four general
categories of information:
1) Microprocessor Information as described in Section
3.19.1 above.
2) Sensor Data
This information is recorded at pre--determined
intervals as a snapshot of the sensor at the time of the
recording, or an averaged reading of the sensor
readings since the last recording. The user can
determine which sensor(s) will be recorded, at what
interval, and whether snapshot or averaged readings
are preferred. (Snapshot readings of sensors are also
taken at the time of a shutdown alarm.)
3) Event Occurrences
This information is any additional data that is recorded
on a “when it occurs” basis. Events are recorded by the
recorder as they occur. An Event is defined as
something that happens (i.e. setpoint changed, Defrost
Cycle Started, or Main Power On, etc.). Hourmeters are
recorded at midnight or the first time of day the switch is
turned to the ON position.
4) User Area Data
The User or service technician is able to enter a
Comment into the Data Recorder using ReeferManager
Program.
3.19.3 Sensor & Event Data
Sensors
The following sensors may be recorded either with an
averaged reading, or snapshot or may not be recorded
at all.
Return Air Temperature
Supply Air Temperature
Ambient Air Temperature
1 Defrost Termination Temperature
Compressor Discharge Temperature
Engine Coolant Temperature
Compressor Discharge Pressure
Compressor Suction Pressure
Evaporator Outlet Pressure
Evaporator Outlet Temperature
Total AC #1 and #2
Battery Voltage
Battery DC Current
Engine RPM
C2 Return Air Temp
C2 Supply Air Temp
C3 Return Air Temp
2 Defrost Termination Temperature
Fuel Level Sensor
Compressor Suction Temperature
Events (Selectable)
User may determine whether the following events are
recorded. All other events such as ON/OFF, Defrost
start will be recorded.
Pretrip Start
Pretrip End
Trailer ID
Unit S/N
Unit Mode
Control Mode
Optional Sensors & Events
In addition to the above Sensors and Events, the Data
Recorder also has the capabilities to record the
following:
Remote Temperature Sensor 1
Remote Temperature Sensor 2 (Two compartment units
only)
Door Switch (Two compartment units only)
Fuel Tank % Level