Carrier 69NT40-541-001, Операция и обслуживание

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4–19 T-316
Table 4–5 Controller Function Codes
CODE # TITLE DESCRIPTION
NOTE
If the function is not applicable, the display will read “-----”
Display Only Functions
Cd01
Suction Modulation
Valve Opening (%)
Displays the SMV percent open. The right display reads 100% when the valve
is fully open and 0% when the valve is fully closed. The valve will usually be at
21% on start up of the unit except in very high ambient temperatures.
Cd02 Quench Valve Displays state of the solenoid quench valve, open or closed.
Cd03 Not Applicable Not used
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
calculated based on a current algorithm. The current measured is used for con-
trol and diagnostic purposes. For control processing, the highest of the Phase A
and B current values is used for current limiting purposes. For diagnostic pro-
cessing, the current draws are used to monitor component energization. When-
ever a heater or a motor is turned ON or OFF, the current draw increase/
reduction for that activity is measured. The current draw is then tested to deter-
mine 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 control 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
Compressor Suction
Temperature
Compressor suction temperature sensor reading is displayed.
Cd11
Compressor Dis
charge Temperature
Compressor discharge temperature sensor reading is displayed.
Cd12
Compressor Suction
Pressure
Compressor suction pressure transducer reading is displayed.
Cd13 Condenser Pressure Condenser pressure transducer reading is displayed.
Cd14
Compressor Dis
charge Pressure
Compressor discharge pressure transducer reading is displayed.
Cd15
Unloader Valve
(On-Off)
Not used in this application.
Cd16
Compressor Motor
Hour Meter Records total hours of compressor run time. Total hours are recorded in incre-
ments of 10 hours (i.e., 3000 hours is displayed as 300).
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
running, “btest” will flash on the right display, followed by the result. “PASS” will
be displayed 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 69NT40-541-100, the display will show “41100”).