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SA2002E Scheda tecnica(PDF) 3 Page - Sames |
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SA2002E Scheda tecnica(HTML) 3 Page - Sames |
3 / 10 page 3/10 sames SA2002E http://www.sames.co.za PIN DESCRIPTION 8 Pin 14 Pin 16 Pin 20 Pin Designation Description 8 14 16 20 GND Analog Ground. The voltage to this pin should be mid-way between V and V . DD SS 4 55 8 V DD Positive supply voltage. The voltage to this pin is typically +2.5V if a shunt resistor is used for current sensing or in the case of a current transformer a +5V supply can be applied. 6 10 12 14 V SS Negative supply voltage. The voltage to this pin is typically -2.5V if a shunt resistor is used for current sensing or in the case of a current transformer a 0V supply can be applied. 7 13 15 19 IVP Analog Input for Voltage. The current into the A/D converter should be set at 14µA at nominal mains voltage. The voltage sense input saturates at an input current of ±25µA peak. RM S 1, 2 1, 2 1, 2 1, 2 IIN, IIP Inputs for current sensor. The shunt resistor voltage from each channel is converted to a current of 16µA at rated conditions. The current sense input saturates at an input current of ±25µA peak. RM S 33 3 3 VREF This pin provides the connection for the reference current setting resistor. A 24k resistor connected to V set the optimum operating condition. W SS 5 86 12 FOUT Pulse rate output. Refer to pulse output format for a description of the pulse rate. 44 4 67 5 78 6 99 7 11 9 12 11 10 13 11 14 13 15 16 17 18 TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 Leave pins unconnected. 10 |
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