User manual CARLO GAVAZZI WM30-96 PROGRAMMING

[. . . ] 4 Visualization of the current voltage and frequency (see the table with the measurement screens below). 5 Visualization of the instant cosf and powers (see the table with the measurement screens below). 6 Visualization of the harmonics (see the table with the measurement screens below). 7 1 8 9 2 10 The keyboard in the bottom area is especially dedicated to instrument programming. 7 Exits the submenus, exits programming. [. . . ] 70 PT RATIO: this function allows you to select the value of the VT-PT ratio (primary/secondary ratio of the voltage transformer being used). Example: Page 9 if the primary of the connected VT (voltage transformer) is 20kV and the secondary is 100V, then the VT-PT ratio corresponds to 200 (obtained carrying out the following calculation: 20000/100). 80 DMD: This function allows the user to select the calculation method of the DMD/AVG value of the selected variable. 81 TYPE: select the type of calculation mode to be used for the DMD/AVG calculation FIXED: if, for example, a time interval of 15 minutes has been selected, the instrument will calculate the AVD/DMD value of the measured variable and updates its value every 15 minutes. SLIDE: if for example a time interval of 15 minutes has been selected, the instrument calculates the AVG/DMD value and updates its value at the beginning after the first 15 values and then after every minute, thus generating a window whose width is of 15 minutes and that moves forward every minute. 82 TIME: select the time interval for the DMD/AVG calculation 83 SYNC: select the synchronization mode, that is the method that controls the calculation method of the average/demand according to the selected time. 90 SET POWER: This menu allows you to set a power value (installed power) that, in the measuring phase, will represent 100% of the graph indicator. 100 HOME PAGE: This function allows the user to select the variables to be displayed on first page (home page). 101 TYPE: A, you can select the variable for each row. B, you can select a preset combination of variables. 110 FILTER: Thanks to the digital filter, it's possible to stabilize the measurements which are too instable when displaying the relevant values. 111 FILTER S: set the operating range of the digital filter. 112 FILTER CO: set the filtering coefficient of the instantaneous measures. By increasing the value, also the stability and the settling time of the measures are increased. Some specific menus display only if the relevant modules are installed * Self-recognize. Automation CARLO GAVAZZI Components PROGRAMMING WM30-96 How to costumize the home page of WM30-96 Menu "101 TYPE": A, you can select the variable for each row. B, you can select a preset combination of variables. Moreover, the selectable variables depend on the selected electric system, if 1P (one phase) system is selected, the available variables are different. 201 VARIABLES: select the variable to be retransmitted by means of the analog output. 202 MIN OUT: set the value expressed as % of the output range (0-20mA, 0-10V) to be coupled to the minimum measured value. 203 MAX OUT: select the value expressed as % of the output range (0-20mA, 0-10V) to be coupled to the maximum measured value. 204 MIN INPUT: minimum value of the variable input range to which the "MIN OUT" value, retransmitted by the analog output, will be coupled. 205 MAX INPUT: maximum value of the variable input range to which the "MAX OUT" value, retransmitted by the analog output, will be coupled. [. . . ] It's necessary to retransmit the whole range of the admitted values for the PF with a signal from 0 to 20mA. Particular attention must be paid to the value of the PF variable which may vary from C0, 001 and L0, 000 (for each phase): these values will be retransmitted and will then correspond to 0 and 20 mA. When the PF will have a value equal to 1, being in the middle between C0, 001 and L0, 000, the value of the output will correspond to the middle of the scale, that is 10mA. As a consequence, the instrument will have to be programmed as follows: VARIABLE: PF L1 (or L2 or L3 or PF). [. . . ]