Carel FLSTDMFC0A, Руководство пользователя

Страница: 8 / 56

FLSTDMFC0A pCO² refrigeration system
cod. Carel +030221991 rel. 1.0 dated 27/07/01
2
NOTE: The default values differ depending on the type of board used.
To see the parameters installed, please refer to “Default value”; “Configuration examples” to see on which inputs-outputs the
devices are configured and which models are covered by the various configurations.
If some standard values are not correct for the required application, the user can always change them by accessing the screen
from the supervisor, making the machine customisable according to the specific application.
The fundamental parameters to be checked are:
•
the number of devices and their configuration;
•
the language used;
•
the control parameters (Set Point, time settings, alarm thresholds, etc.).
All the data set is stored in permanent memory, to prevent it being lost when the machine is not powered.
Using the program WINLOAD, the permanent memory can be read and saved to file for subsequent programming. In this way,
different configurations can be modified, read and saved for different models of machine using one board.
%DVLFFRQILJXUDWLRQ
According to the board used (SMALL, MEDIUM, or LARGE) and the number of inputs per compressor (M_CONF_DEV01
manufacturer branch), the number of compressors set can vary from 1 to 6, with between 1 and 3 capacity-control steps, and
between 1 and 5 fans. In addition, the compressors and the fans can be configured for phase-cutting speed controllers or
inverters.
The program checks the type of board (SMALL, MEDIUM or LARGE) that it is working with, and makes the inputs and
outputs that can actually be used available.
1XPEHURIFRPSUHVVRUVDQGIDQV
The number of compressors controlled, managed by the inlet probe, can be set by the user (screen M_CONF_DEV02
manufacturer branch). Depending on the board, the pCO² system can manage a minimum of 1 compressor up to a maximum of
6, all with the same capacity, and with the possibility to rotate activation.
The number of condenser fans controlled varies from 1 to 5, and can be set by the user (screen M_CONF_DEV01 manufacturer
branch), with the possibility to rotate activation.
,QSXWORJLF
The user can decide if the inputs are normally closed (when an alarm is present the contact is open) or normally open (when an
alarm is present the contact is closed) (screen M_CONF_LOGIC_IN, manufacturer branch).
In addition the type of compressor safety devices connected to the inputs can be defined; the possible choices are as follows:
A. general: one safety device only per compressor, not delayed with manual reset
B. thermal ov oil differential: one input dedicated to the thermal overload, not delayed with manual reset, and one
input dedicated to the oil differential, delayed with manual reset
C. thermal ov high/low pressure switch: one thermal overload input, immediate with manual reset, while the
pressure switch is immediate with reset set on the screen (M_TYPE_RES_HL_P, general parameter configuration
branch)
D. thermal ov oil differ high/low pressure switch: includes all three types of alarm
The user can decide which inputs to use for the various safety devices.
Example:
If input 6 is used for the compressor 1 thermal overload switch, simply go to the screen M_CONF_INOUT_1 (configuration
branch, unit configuration sub-branch), move to the row “Thermal comp.1 ID:00”and choose number 6 from the possible free
inputs).
NOTE: the software does not allow two devices to be connected to the same input. To reverse two devices, a special input needs
to be used (also see manufacturer branch, unit configuration, screens M_CONF_INOUT_1).
2XWSXWORJLF
The application can manage a maximum of six compressors with three capacity-control steps each and a maximum of five fans.
The user can decide which inputs to use for the various devices (e.g. first a compressor then a capacity-control step then a fan
and so on), also see manufacturer branch, unit configuration (screen M_CONF_OUT1), without needing to modify the electrical
system and in any case freely deciding upon the use of the outputs.
/DQJXDJHVHOHFWLRQ
The user can easily set the language used on the screens. To do this, go to the main screen (M_MAIN_MENU) and press the
PROG button (for Built-in terminals press the PROG button, then move to the row “PROG BRANCH:
Å
” and press ENTER),
then enter the password (default 0) and press the ENTER button until the desired language appears.
Note 1: the software currently manages three languages (Italian, English, French)
Note 2: the user may at any moment change language, without needing to place the unit in Standby.