User manual

14
ENGLISH
ir33 +030220441 - rel. 2.5 - 16.06.10
4.4 Displaying and setting the set point
1. Press SET for more than 1 second to display the set point;
2. increase or decrease the set point using the or buttons respectively, until reaching the desired value;
3. press SET again to con rm the new value.
4.5 Alarms with manual reset
The alarms with manual reset can be reset by pressing PRG and  ptogether for more than 5 seconds, if the causes are no longer
present.
4.6 Procedure for setting the default parameter values
To set the default parameter values, if ‘Hdn’= 0, proceed as follows:
1. switch the instrument o ;
2. switch the instrument on again, holding the PRG button until the message “_Std_” is shown on the display.
Note: the default values are set only for the visible parameters (e.g. C or F), according to the model; see the table of “Operating
parameters”.
If ‘Hdn’<> 0, a number of sets of customised default parameters are available. Proceed as follows to select these:
1. switch the instrument o ;
2. switch the instrument on again, holding PRG until the value ‘0’ is displayed;
3. use and to select the desired set of custom default parameters.
The sets between 1 and ‘Hdn’ can be chosen; setting 0 selects the default parameters as in the case described previously for
‘Hdn’ = 0;
4. pressing the button shows the message “Std” on the display.
Set Customisable Note
0 NO The levels of visibility are not modi ed. Used to set the values of the visible parameters only.
1, 2, 3
4, 5, 6
YES Sets the levels of visibility and the values of all the operating parameters. The unit parameters
are not set.
Tab. 4.b
Note:
• The set of customisable default parameters can only be used on the controller if there is suitable
hardware (expanded EEPROM memory);
• if when loading a set of customised default parameters there is an EF EEPROM error (memory error on the controller), the previous
parameters can be restored by switching the instrument o and on again;
• if there is an ‘EF’ EEPROM error, to maintain the loaded parameters, enter parameter con guration mode, check the values then save
them to the EEPROM using the special procedure. At then end of the operation, the EEPROM error signal will be cancelled;
• if there is a recurring ‘EF’ EEPROM error when loading a set of customised default parameters, the EEPROM on the instrument should
be corrected using the hardware programming key;
• after loading a set of customised default parameter, the controller automatically updates the memory, saving both the levels of
visibility and the values of the parameters;
• ‘Hdn’ must have the same value in all the sets of customised default parameters;
• for greater protection, parameter ‘Hdn’ must be set to not visible.
4.7 Downloading the parameters via the network
1. Press the PRG and SET buttons together for more than 5 seconds; the display will show the number “00”;
2. press theor button to scroll the numbers until displaying “66” (download activation password), then con rm by
pressing SET;
3. the display will show the message “dnL”, indicating that the download is in progress;
4. at the end of the procedure, the message “dnL” is cancelled and, in the event of errors, one of the messages d1 to d6 is displayed to
indicate which unit the error occurred on.
4.8 Semi-automatic serial address assignment procedure
The automatic setting of the serial address is a special procedure that, by using an application installed on a PC connected to the CAREL
network (included in the PlantVisor supervision and monitoring software), sets and manages the addresses of all the instruments that
include this feature in a simple way. Using the remote application, start the “Network de nition” procedure; the application begins to
send a special message (‘<!ADR>’) across the network, containing the network address. Then:
1. press the PRG button on the keypad of the instrument connected to the network, the instrument recognises the message sent
by the remote application, automatically setting the address to the required value and sending a con rmation message to the
application, containing the unit code and  rmware revision (message ‘V’). When the message sent by the remote application is
recognised, the instrument displays the message ‘Add’ for 1 second, followed by the value of the assigned serial address;
2. the application, on receiving the con rmation message from the units connected to the network, saves the information received
in its database, increases the serial address and resumes sending the message ‘<!ADR>‘. The procedure can be repeated
starting from point 2 on another unit connected to the network, until all network addresses are de ned.
Note: when the operation for assigning an address to an instrument has  nished, for reasons of safety, the operation is inhibited
for 1 minute on that instrument. Consequently, a di erent address cannot be re-assigned to the instrument during that time.