4–35
T-372
Cd58 Water Pressure Switch
/ Condenser Fan
Switch State or
Override Logic State
Cd58 will display “CLOSE” if the WPS or CFS switch contacts are closed or if
these options are not installed. “OPEn” is displayed when the WPS or CFS switch
contacts are open. When the WPS/CFS Override Logic is “TRUE”, the right
display will flash on all units.
NOTE
:
1. This CLOSE/OPEn state displayed in this Code Select function only applies to
units that have the ability to detect the state of a WPS/CFS. This function should
not be relied upon to display the condition of the switch on units that don’t have
a WPS/CFS switch connected to ECG2 exclusively.
2. The right display will flash if the WPS/CFS Override Logic is TRUE on all units.
This is always the case, whether the unit has a WPS or CFS installed or not.
3. The ability of the WPS/CFS Override Logic to control the condenser fan is
limited. It is not possible for this logic to control the fan on units that have the WPS
or CFS wired in series with the fan contactor. Units wired in this configuration can
indicate that the WPS/CFS Override Logic is active by flashing the right display,
however, the wiring will not allow for control of the condenser fan.
Configurable Functions
- Cd59 through Cd61 are user-selectable functions. The operator can change the value
of these functions to meet the operational needs of the container.
Cd59 Pump Down Logic
Cd59 allows operation of the pump down logic control. The display will flash
between “STArT PdN” and “PrESS EnTEr”.
Upon entering Cd59 the operator will be required to acknowledge that they want
to initiate the pump down control. The display will flash between “STArT PdN”
and “PrESS EnTEr”. Once the decision to continue is confirmed pump down logic
will begin, and will take complete control of the unit until pump down either
succeeds or fails. This operation can not be halted once it begins without power
cycling the unit.
After pump down logic has been initiated, the operator will be notified to close the
Liquid Line Valve, the display will flash between “CLOSE LLV” and “PrESS
EnTEr”. Once complete the display will read “P dN” to the left, and the current
suction pressure to the right.
If the automatic pump down logic succeeds within 20 minutes, the unit will turn
itself off, and the display will notify the operator that pump down is complete by
flashing between “P dN DOnE” and “SHUT OFF”. The operator must then shut
off the unit.
If the automatic pump down logic does not complete within 20 minutes, the unit
will drop out of Cd59 and return to its previous control condition.
Cd63 FuelWise
Cd63 is used to enable FuelWise.
Following a power cycle, the state of the function select code is retained at its
state prior to the power cycle if CNF72 = Default ON else if Default OFF this will
be set to OFF. If “On”, this function select code will be set to “OFF” when any trip
start occurs or any pretrip test is initiated.
Event 120 shall be logged when ever CD63 is Turned ON OR if CD63 state is ON
at Mid night.
“-----” will be displayed if Cnf72 is configured OFF.
Table 4–8 Controller Function Codes (Continued)
Code Title
Description