Carrier 69NT40-561-201, Руководство по эксплуатации и обслуживанию, Страница: 48 / 117

3 − 19 T-364
3.9 CONTROLLER FUNCTION CODES
Table 3 − 5 Controller Function Codes (Sheet 1 of 6)
Code
No.
TITLE DESCRIPTION
Note: If the function is not applicable, the display will read “‐‐‐‐‐”
Display Only Functions − Cd01 through Cd26 are display only functions.
Display Only Functions
Cd01
Digital Unloader
Valve Closed (%)
Displays the DUV percent closed. The right display reads 100% when the valve is
fully closed. The valve will usually be at 10% on start up of the unit except in very
high ambient temperatures.
Cd03 Compressor Motor
Current
The current sensor measures current draw in lines L1 & L2 by all of the high volt-
age components. It also measures current draw in compressor motor leg T3. The
compressor leg T3 current is displayed.
Cd04
Cd05
Cd06
Line Current,
Phase A
Line Current,
Phase B
Line Current,
Phase C
The current sensor measures current on two legs. The third unmeasured leg is calcu-
lated based on a current algorithm. The current measured is used for control and
diagnostic purposes. For control processing, the highest of the Phase A and B cur-
rent values is used for current limiting purposes. For diagnostic processing, the cur-
rent draws are used to monitor component energization. Whenever a heater or a mo-
tor is turned ON or OFF, the current draw increase/reduction for that activity is mea-
sured. The current draw is then tested to determine if it falls within the expected range
of values for the component. Failure of this test will result in a Pre-trip failure or a con-
trol alarm indication.
Cd07 Main Power Voltage The main supply voltage is displayed.
Cd08 Main Power
Frequency
The value of the main power frequency is displayed in Hertz. The frequency dis-
played will be halved if either fuse F1 or F2 is bad (alarm code AL21).
Cd09 Ambient
Temperature
The ambient sensor reading is displayed.
Cd10 Evaporator Temper-
ature Sensor
Evaporator temperature sensor reading is shown on the right display.
Cd11 Compressor Dis-
charge Temperature
Compressor discharge temperature sensor reading, using compressor dome tem-
perature, is displayed.
Cd12 Compressor Suction
Pressure
Reading for evaporator pressure transducer (EPT) is shown on the left display;
Press ENTER at Cd12 to show reading for compressor suction port pressure on
right display.
Cd14 Compressor Dis-
charge Pressure
Compressor discharges pressure transducer reading is displayed.
Cd15 Digital Unloader
Valve
The status of the valve is displayed (Open - Closed).
Cd16
Compressor Motor
Hour Meter/Unit Run
Time Hour Meter
This code displays the compressor motor hours. User can view unit run time by
pressing the ENTER key while in Cd16. Total hours are recorded in increments of
10 hours (i.e., 3000 hours is displayed as 300).
The Compressor Motor Hour Meter display can be reset to 0 by pressing and
holding the ENTER key for 5 seconds. The Unit Run Time Hour Meter cannot be
reset.
Cd17 Relative Humidity % Humidity sensor reading is displayed. This code displays the relative humidity, as
a percent value.
Cd18 Software Revision # The software revision number is displayed.
Cd19 Battery Check
This code checks the Controller/DataCORDER battery pack. While the test is run-
ning, “btest” will flash on the right display, followed by the result. “PASS” will be dis-
played for battery voltages greater than 7.0 volts. “FAIL” will be displayed for battery
voltages between 4.5 and 7.0 volts, and “
‐‐‐‐‐
” will be displayed for battery voltages
less than 4.5 volts. After the result is displayed for four seconds, “btest” will again be
displayed, and the user may continue to scroll through the various codes.
Cd20 Config/Model #
This code indicates the dash number of the model for which the Controller is con-
figured (i.e., if the unit is a 69NT40-561-201, the display will show “61201”). To
display controller configuration database information, press ENTER. Values in
“CFYYMMDD” format are displayed if the controller was configured with a config-
uration card or with a valid OEM serial port configuration update; YYMMDD rep-
resents the publication date of the model configuration database.