User manual CARLO GAVAZZI WM14-96 PROGRAMMING

[. . . ] If the instrument is used in a manner not specified by the producer, the protection provided by the instrument may be impaired. Maintenance: make sure that the connections are correctly carried out in order to avoid any malfunctioning or damage to the instrument. To keep the instrument clean, use a slightly damp cloth; do not use any abrasives or solvents. Type of electrical system: Selectable: 1-phase, 2-phase, 3-phase with or without neutral unbal. [. . . ] 8mA max is generated, whose value depends on the input impedance values, on the type of connection and on the line voltage measured by the instrument. Three Phase power analyser PAS : if you enter the correct password (the default password is 0) you access to the main menu. i THE MAIN MENU FUNCTIONS n_P : new password , change password function. I: 3-phase balanced with or without neutral (requires only one voltage input "VL1-N" and one current input "I1)"; 2P: twophase, 1P: single phase. Example: if the primary of the CT being connected is 300kA and the secondary is 5A, the CT ratio corresponds to 60, 0k (obtained from the calculation: 300000/5). : integration time for the calculation of power dmd: select the required value from 1 to 30 minutes. End : to confirm the new selected values press the S key, or press L M to remain in the programming menu. 2 : setup of output 1 / 2, select: EnE : retransmits the value of the active energy "Act" or the reactive one "rEA" by means of pulses. "PuL" selects the number of pulses per kWh/kvarh from 0, 01 to 500. YES, to continue the programming of all other parameters relating to the alarm being set: d. TYP : select the alarm type: up (uP) or down (do), in window alarm (in), out window alarm (out). Fun : select the OR or AND function (see the "OR/AND" picture below) out : select the relay to be enabled in case of alarm. The measured variable blinks when an alarm occurs (see figure "G" on the left: VL1, 200V). It's possible to link more than one alarm to the same variable, the first alarm condition will make the variable range blink. the "al" (· ) LED shows the activation of one of the two outputs (relay or open collector output) in case they are selected as alarm. When both digital outputs are installed in the instrument (relay or open collector), it's possible to manage up to 16 alarms that can be linked to output 1 and/or output 2. If "var" or "W are negative, the decimal point on the very right blinks in correspondence with the negative variable (see figure "H" on the left). If the instrument displays a negative power, the relevant energy will not be counted. If the instrument is used in a way which is not specified by the builder, the protection may be impaired. Maintenance: To keep the intrument clean, use a damp cloth; do not use abrasives or solvents. [. . . ] Insulation: (for 1 minute) 4kVACRMS between measuring inputs and power supply. [1]- 1 phase 2-wire connection, 1 CT [2]- 2-phase, 3-wire connection, 2 CT's [3]- 3-phase, 3-wire connection, ARON [4]- 3-phase, 3-wire connection, ARON and 2 VT's [5]- 3-phase, 4-wire connection, unbalanced load, 3 CT's [6]- 3-phase, 4-wire connection, unbalanced load, 3 CT's and 3 VT [7]- 3-phase, 3-wire connection, unbalanced load, 3 CT [8]- 3-phase, 3-wire connection, unbalanced load, 3 CT and 2 VT [9]- 3-phase, 3-wire connection, balanced load, 1 CT [10]- 3-phase, 4-wire connection, balanced load, 1 CT and 1 VT [11]- 3-phase, 4-wire connection, balanced load, 1 CT [12]- Power supply connection. [13]- Double relay output [14]- Double open collector output The value of the load resistances (Rc) must make the close-contact current be lower than 100mA; the VDC voltage must be lower than or equal to 30VDC. The current inputs can be connected ONLY by means of current transformers. [. . . ]