Description Of Parameters - Full Gauge Controls TC-900E Log Quick Start Manual

Fun
[,F73]
Enable second defrost output
[,F74] Enable preset SP2
[,F75] Enable preset SP3
[,F76] Enable preset SP4
[,F77] Enable preset SP5
[,F78] Normal setpoint SP2
[,F79] Normal setpoint SP3
[,F80] Normal setpoint SP4
[,F81] Normal setpoint SP5
[,F82] Economic setpoint SP2
[,F83] Economic setpoint SP3
[,F84] Economic setpoint SP4
[,F85] Economic setpoint SP5

6.5.1 Description of parameters

F00 - Controller's operating mode:
Configures if the controller operates in the basic mode (30 functions) or in the advanced mode (76
functions)
[,,,0]- Basic mode
[,,,1]- Advanced mode
NOTE: The features of the advanced mode will be disabled when the controller is in the basic
mode.
F01 - Defrost by hourly programming:
This function allows enabling the schedule of defrosts by time.
[,,,0]- The defrosts happen normally after the end of the cooling stage or by temperature as
configured in [,F45].
[,,,1]- The defrosts happen in programmed times with non-linear distribution according to the
weekly schedule configured in menu [Prog].
[,,,2]- The defrosts happen in programmed times with linear distribution according to the weekly
schedule configured through functions F25 to F30.
NOTE: The functions related to the defrost schedule configuration (F25 to F30) will only be
enabled when this function is configured with the value 2 and menu [Prog] will only be enabled
when this function is configured with the value 1.
NOTE2: If the defrost schedule is enabled, i.e. if this function is configured with 1 or 2, the defrost
will not be performed after the end of the cooling stage or by temperature, but only on the
scheduled time.
NOTE3: The defrost by temperature configured in function [,F45] will only be available when
the controller is in the advanced mode.
F02 - Control differential (normal hysteresis):
It is the difference in temperature (hysteresis) between TURNING ON and OFF the refrigeration control
output in the normal mode and Fast freezing.
F03 - Minimum setpoint allowed to the end user:
A threshold aimed at preventing an exceedingly low temperature setpoint from being inadvertently
adjusted.
F04 - Maximum setpoint allowed to the end user:
A threshold aimed at preventing an exceedingly high temperature setpoint from being inadvertently
adjusted.
F05 - Startup delay (power up):
When the instrument is powered up with this function enabled it will only indicate the temperature and
remain with all outputs switched off for the defined time. In facilities with many equipments, attributing
different values for the startup delay of each instrument will avoid energy peaks by activating the loads
at different times.
F06 - Low room temperature alarm (S1):
It is the room temperature (S1) below which the instrument will activate the visual ([aTlo]) and
audible (F56) low temperature alarm. The temperature configured in this function can have its absolute
value or relative to the setpoint depending on the value configured in F65. The differential to switch off
the alarm is fixed on 0.1 °C/1 °F. This alarm is ignored until the instrument reaches the control
temperature for the first time. During the operation in Fast Freezing the low temperature alarm remains
disabled. After exiting this process it is reactivated when the temperature is out of the alarm condition.
F07 - High room temperature alarm (S1):
It is the room temperature (S1) above which the instrument will activate the visual ([atHi]) and
audible (F56) high temperature alarm. The temperature configured in this function can have its absolute
value or relative to the setpoint depending on the value configured in F65. The differential to switch off
the alarm is fixed on 0.1 °C/1 °F. This alarm considers the temperature being displayed and it is
influenced by the temperature indication locked during the defrost (F17). This warning is ignored until
the instrument reaches the control temperature for the first time.
F08 - Time in refrigeration (interval between defrosts):
When the defrost is configured to start by time (F45), this function establishes the maximum time
duration of the cooling process.In this case, the defrost will be started whenever the time elapsed during
the cooling mode reaches the value configured in this function. If the condition to start the defrost is the
evaporator temperature and the controller is not indicating a reading error for this sensor, the time in
refrigeration will not be considered.
F09 - Minimum compressor on time:
It is the minimum time for which the compressor remains switched on, i.e. the length of time between the
last start up and the next stop. It is aimed at avoiding high voltage surges in the power lines, potentially
extending lifespan of compressor.
F10 - Minimum compressor off time:
It is the minimum time the compressor will remain off, i.e. the length of time between the last stop and the
next start up. It is aimed at relieving the discharge pressure and increase the service life of the
compressor.
F11 - Compressor state with a disconnected or faulty room sensor (S1):
If the room sensor (S1) is shorted, disconnected, or out of range, the compressor will assume the state
configured in this function.
[,,,0]- Compressor off
[,,,1]- Compressor on
[,,,2]- Cycling according to the times defined in F42 and F43.
Description
F12 - Defrost at instrument startup:
It allows performing a defrost when the controller is powered on, for example when the electric power
returns (in case of power failure).
F13 - Evaporator temperature (S2 / S3) to determine the end of defrost:
The defrost will be ended when the evaporator temperature reaches a value equal or higher than the
value configured in this function. If sensor S3 is configured as the second evaporator sensor (F57), the
controller will switch off the defrost outputs individually and the defrost process will be ended when both
are off.
F14 - Maximum defrost time:
This parameter defines the maximum defrost time. If the defrost is not ended by temperature when this
time has elapsed, a dot will keep flashing in the lower right corner of the display. If sensor 2 is switched
off, the defrost process end will be always defined by time, thus no warning signal is required. If the
maximum defrost time is configured as 0 ([no,,]), the defrost process will not be performed.
F15 - Fan on during defrost:
It defines whether the fan will remain on during the defrost. The cases of natural defrost and defrost by
finned resistances installed outside of the evaporator are examples of the usage of the fan on.
F16 - Defrost type:
[,,,0] - Electric defrost (by resistance), where only the defrost output is activated
[,,,1] - Defrost by hot gas, where the compressor output and defrost output are activated
F17 - Temperature indication (S1) locked during defrost:
This function is aimed at avoiding viewing the room temperature rise due to the defrost cycle. The last
temperature measured in the refrigeration cycle will be locked in the display during the defrost. The
indication will be unlocked when this temperature is reached again or when the time configured in this
function is exceeded after the start of the following refrigeration cycle (whichever comes first). This
function may be disabled if configured with [no,,] (-1).
F18 - Draining time (defrost water dripping):
Time required for dripping, i.e. to drain the last drops of the evaporator. During this period, all outputs
remain turned off. If you do not want this stage, adjust this time to [no,,].
F19 - Evaporator temperature (S2 / S3) for the fan to return after draining:
The fan-delay cycle is started after the draining phase. The compressor is activated immediately
because the evaporator temperature is high but the fan is activated only after the temperature on the
evaporator drops below the adjusted value. This process is required to remove the heat that already
exists on the evaporator as a result of the defrost to avoid transferring it to the environment.
F20 - Maximum time for the fan to return after draining (fan-delay):
For safety reasons, if the evaporator temperature does not reach the value adjusted in function F19 or if
sensor (S2 / S3) is disconnected, the fan will return after the time adjusted in this function has elapsed.
F21 - Fan operating mode during refrigeration:
This parameter allows configuring how the fan output will behave during the refrigeration cycle. In this
case, the working options take into account the state of the compressor output and the setpoint with
which the instrument is operating. When configured to cycle, the on and off times are defined by F40
and F41.
CELSIUS (°C)
Max
Min
0(NO) 1(YES)
0(NO) 1(YES)
0(NO) 1(YES)
0(NO) 1(YES)
0(NO) 1(YES)
-50 105
-50 105
-50 105
-50 105
-50 105
-50 105
-50 105
-50 105
Comp. Relay off with
Comp. Relay ON
Mode
Normal or FF* SP*
Fan Relay ON Fan Relay CYCLING
0
Fan Relay ON Fan Relay CYCLING
1
Fan Relay ON Fan Relay CYCLING
2
Fan Relay ON Fan Relay ON
3
Fan Relay ON Fan Relay ON
4
Fan Relay ON Fan Relay ON
5
Fan Relay ON Fan Relay OFF
6
Fan Relay ON Fan Relay OFF
7
FAHRENHEIT (°F)
Unit Min
Default Max Unit Default
- 0(NO) 0(NO) 1(YES) - 0(NO)
- 0(NO) 0(NO) 1(YES) - 0(NO)
- 0(NO) 0(NO) 1(YES) - 0(NO)
- 0(NO) 0(NO) 1(YES) - 0(NO)
- 0(NO) 0(NO) 1(YES) - 0(NO)
°C -26 -58 221 °F -14
°C -23 -58 221 °F -9
°C 0,0 -58 221 °F 32
°C 4,0 -58 221 °F 39
°C -24 -58 221 °F -11
°C -20 -58 221 °F -4
4,0
°C -58 221 °F 39
°C 6,0 -58 221 °F 42
Comp. Relay off with
Economic SP*
Fan Relay CYCLING
Fan Relay ON
Fan Relay OFF
Fan Relay CYCLING
Fan Relay ON
Fan Relay OFF
Fan Relay CYCLING
Fan Relay OFF
*LEGEND:
SP: Setpoint
FF: Fast Freezing