User manual CARLO GAVAZZI LDI 35 CONFIGURATION SOFTWARE

[. . . ] ENGLISH LDI 35 OPERATING INSTRUCTIONS · General features · Technical features · Installation · Preliminary operations · Front panel description · Operating mode 2 3 10 12 13 15 Important: We suggest you keep the original packing for a further shipping of the instrument. In order to guarantee a correct use of the instrument, we recommend the user to carefully read the present instruction manual. CARLO GAVAZZI Instruments Multi-range µP-based panel indicators/controllers for voltage, current and temperature measurements ENGLISH LDI35. AV0 / LDI35. AV2 / LDI35. CF rev. 0 Operating instructions Important: We suggest you keep the original packing for a further shipping of the instrument. In order to guarantee a correct use of the instrument, we recommend the user to carefully read the present instruction manual. GENERAL FEATURES The most important features are: ·measurement of the input value; ·display of the measured value; ·one control point of the measured value (if available); ·display of the maximum measured value. The main programming parameters are: ·input selection; ·programming of: electrical scale, displayed scale and decimal point position; 2 ·selection of displaying mode; ·programming of all the parameters relating to the set-point (if available); ·programming of all the parameters relating to the digital filter. ACCURACY (VOLTAGE AND CURRENT) LDI35. AV0: ±0. 3% F. S. , ±1 dgt (@ 25°C ±5°C, R. H. [. . . ] Display Alphanumeric indication by means of 7-segment LEDs: · of the measured value; · of the programming parameters; · of the measuring abnormal conditions. Engineering unit window To insert the interchangeable engineering unit in the special window, proceed as follows: remove the front cover by inserting a suitable screw driver in the special slot on the short sides of the front panel; force gently until the front cover is completely removed. Insert the desired engineering unit by means of a pair of tweezers. Replace the front cover by inserting it first in the lower part and then in the upper part of the locking system. OPERATING MODE · Power-on When you switch the unit on, the instrument shows for approximately 5 seconds the instruments's software revision, for example: r. 1. · Displaying, control (if present) and diagnostics The instrument shows continuously the value of the input variable as defined in the programming phase. The value shown on the display is continuously compared with the value of the set-point and of the other parameters, thus generating the control function by energizing/de-energizing the output relay. · Programming This phase is identified by the blinking of the decimal point on the right side of the display. To enter the programming phase, press the S key until "PAS" is shown on the display; then "0" is displayed: the correct numerical code (password) is to be entered. The following conditions may occur: · 1) the operator hasn't entered any Password: press the S key again to enter the configuration menus of the instrument; 15 ENGLISH · 2) the operator has already entered a Password: select the correct key (to increase the value) or key password by means of the (to decrease it) until the desired value is displayed. Press the S key to confirm the value: if the password is correct, then the display will show "PAS" again followed by the relating numerical code; press the S key once more in order to display the first configuration menu; if the password is not correct, the display shows "End" and the instrument goes back to the measuring and control phase. PROGRAMMING OF A NEW PASSWORD AND AUTOMATIC SELECTION OF THE PROTECTION LEVEL OF THE CONFIGURATION DATA. To enter the new Password: ·if the Password is "0", press the S key when the display shows the "PAS" message for the second time; enter the desired numerical code or keys, then confirm it by pressing the S key: using the the display will show the first configuration menu ("inP"); ·if the Password has already been entered, you can modify it following the procedure described at No. 2; after the "PAS" message has been or shown a second time, enter the new numerical code using the keys and confirm it by pressing the S key: the display will show the first configuration menu ("inP"). d. P : selection of the decimal point position in the "Hi-Lo" scale. Enter the value to be displayed in correspondence with the minimum value of the electrical scale "Lo. E". Example: "Lo. E"=4. 00 mA "Lo"=100 mbar, means that when the value measured by LDI35 is 4 mA, the displayed value will be 100 mbar. Enter the value to be measured in correspondence with the maximum value of the electrical scale "Hi. E". Example: "Hi. E"=19. 99 mA "Hi"=1800 mbar, means that when the value measured by LDI35 is 20 mA, the displayed value will be 1800 mbar. NOTE: electrical scale and displayed scale must have: 18 ENGLISH · corresponding values (Lo. E = Lo, Hi. E = Hi), if the same value is to be both measured and displayed. · different values, if the signal to be measured is different from the one to be displayed (see examples of "Lo" and "Hi"). · inverted values, if an increasing signal to be measured must correspond to a decreasing value to be displayed (scale inversion). [. . . ] rLY : selection of the normal status of the relay coil. nd : normally de-energized coil. 21 ENGLISH nE : normally energized coil. FiL : menu to program the digital filter's parameters. This function allows you to solve two different kinds of problems: · stabilize the value of the instantaneous measurement displayed by LDI35 when the value is not enough stable from the beginning and would not therefore allow either a clear reading on the display or a good control by the alarm set-point (if present); · allow an amplitude of the displayed scale as regards to the electrical one >2. [. . . ]