Carrier 69NT40-541-300, Операция и обслуживание

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T-318 3 − 20
Table 3-4 Controller Configuration Variables (continued)
CnF49 OEM Reset Option Off 0-off, 1-std, 2-spec, 3-cust
CnF50 Enhanced Bulb Mode Selection Out 0-out, 1-in
CnF51 Timed Defrost Disable Out 0-out, 1-in
CnF54 Remote Evaporator Out 0-out, 1-in
CnF60 Compressor − Cycle Perishable Cooling Out 0-out, 1-in
CnF61 ACT ASC Control Enable Out 0-out, 1-in
CnF62 Extended Temperature Control Enable Out 0-out, 1-in
CnF63 CCPC Pre − trip/Tripstart Default State On 0-on, 1-off
CnF64 Evaporator Fan Pulsing Logic Enable In 0-in, 1-out
Note: Configuration numbers not listed are not used in this application. These items may appear when loading
configuration software to the controller but changes will not be recognized by the controller programming.
3.10 CONTROLLER FUNCTION CODES
Table 3-5 Controller Function Codes (Sheet 1 of 9)
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.
Cd01
Suction Modulation
Valve (SMV)
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 State Displays the state of the solenoid quench valve, open or closed.
Cd03 Suction Solenoid
Valve State
Displays the state of the suction solenoid valve, open or closed.
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 control
and diagnostic purposes.
For control processing, the highest of the Phase A and B current values is used
for current limiting purposes. For diagnostic processing, the current draws are
used to monitor component energization.
Whenever a heater or a motor is turned ON or OFF, the current draw increase/re-
duction for that activity is measured. 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 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 (see alarm code AL21).
Cd09 Ambient Air
Temperature
The Ambient Temperature Sensor reading is displayed.
Cd10 Compressor Suction
Temperature
The Compressor Suction Temperature Sensor reading is displayed.
Cd11
Compressor
Discharge
Temperature
The Compressor Discharge Temperature Sensor reading is displayed.