Seneca S203TA Manual Download

Page: 4 / 16

MI001458-E

ENGLISH - 4/16

Electric connections

SERIAL PORT RS485

POWER SUPPLY

There is no insulation between RS485 and the analog output

10 ÷ 40 VDC

19 ÷ 28 VAC

2.5 W

GND

32
31

SINGLE
PHASE

3 WIRES

(Three-Phase
without Neutral)

4 WIRES

(Three-Phase with
Neutral)

Note:

You can’t connect the secondary of any CTs to the Earth.

Pins 14, 16 18 and 22 are internally connected.

Summary of Contents for S203TA

Page 1: ...n the DIN rail High precision 0 2 class Protection against ESD discharge up to 4 kV Power input insulation 3750 Vac towards all the other circuits Insulation between communication and power supply 1500Vac Insulation between retransmitted output and power supply 1500Vac Analog output signal settable in voltage or current Possibility for connection and management by external CTs with 5Aoutput All ki...

Page 2: ...ee phase environments measurements given above corresponding to any phase are available other than the three phase value except the frequency of course These measurements are rendered in both floating point and normalised format except Frequency and Active energy between 0 10000 10000 10000 for VAR e Cos Active energy value is stored in memory and when the instrument is switched off the last value...

Page 3: ...hree phase active energy E E E E A B C Active Energy phase E E E A B C Frequency Hz Total three phase cos cos _3PH P S Total three phase apparent power S S S S A B C cos phase cos cos A B cos C P S A B C A B C Apparent power phase S S S A B C V I A B C A B C Total three phase reactive power Q Q Q Q A B C Reactive power phase Q Q Q A B C Total three phase active power P P P P A B C Mean three phase...

Page 4: ...C 2 5 W B A GND 32 31 33 VG A N 22 21 20 19 18 17 16 15 14 13 CT ZL SINGLE PHASE VG A C B 22 21 20 19 18 17 16 15 14 13 CT CT ZL 3 WIRES Three Phase without Neutral VG A C B 22 21 20 19 18 17 16 15 14 13 CT N ZL CT CT CT 4 WIRES Three Phase with Neutral Note You can t connect the secondary of any CTs to the Earth Pins 14 16 18 and 22 are internally connected ...

Page 5: ...ve Output already powered to connect to passive inputs 2 Passive Output not powered to connect to active inputs 27 GREEN PWR LED Description Steady On Power supply is present 28 YLW ERR LED Description Steady On Communication error between internal peripherals Blinking At least one of the active phases voltage is less than 40 Vac 29 RED TX LED Description Steady On Data are being transmitted throu...

Page 6: ...Single phase 1 4 5 SW2 SW2 Network frequency 50 Hz Three phase NETWORK FREQUENCY SELECTION 50 o 60 Hz SELECTION OF ENVIRONMENT SINGLE PHASE OR THREE PHASE 2 3 57600 Baud 38400 Baud 19200 Baud 9600 Baud 1 SW1 2 SPEED DIP SWITCH SETTING The instrument leaves the factory with all DIP switches configured in position 0 The setting of the DIP switches defines the module s communication parameters addres...

Page 7: ...e EEPROM SW1 3 8 in OFF position default setting values originally programmed as follows can be used Address 001 SPEED 38400 Baud PARITY none BIT NUMBER 8 STOP BIT 1 Programming Retransmission of cos Retransmission of Watt Retransmission of Irms Retransmission of Vrms Leds Screw terminals and DIP switch positions SW2 6 7 SELECTION OF QUANTITY RETRANSMITTED 10 11 12 SENECA S203TA 13 14 15 16 17 18 ...

Page 8: ...nitspackaging indicatesthatthisproductshouldnotbetreatedas household waste when you wish to dispose of it Instead it should be handed over to an applicable collection point for the recycling of electrical and electronic equipment By ensuring this product is disposed of correctly you will help prevent potential negative consequences to the environment and humanhealth whichcouldotherwisebecausedbyin...

Page 9: ...h and phase selected via PHASE_RETR register 40017 which gives the minimum value 0 of the transmitted output The value is expressed in floating point format most significative word and therefore it must be expressed in the corresponding measurement unit of the quantity chosen V for Vrms mA for Irms W for Watt Default 0 0 Not used I_PRIM_FL_LSW Select the rated current of CTs in floating point leas...

Page 10: ... gives the maximum retransmitted output floating point format most significative word 40022 R W MINOUT_FL_LSW MAXOUT_FL_LSW CHECK_FREQ Value of the quantity to transmit which gives the minimum retransmitted output floating point format least significative word Value of the quantity to transmit which gives the maximum retransmitted output floating point format least significative word Enables measu...

Page 11: ...ing energy Status Register R W R 40131 40133 Bit 15 0 Writing 0x1234 resets boots instrument Writing 0x1000 resets active energy accumulation in all three phases unless ERR led is blinking Bit 15 Bit 14 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 0 1 Error savingActive Energy value Not Used 1 Phase B and C are reverse connected 1 Voltage on phase C is 40 V therefore measurements on phase C are correctly acqui...

Page 12: ...Three phase Power in W P P P floating A B C point most significative word Single phase or phase A Reactive Power in VAR floating point most significative word Single phase or phase A Irms measurement floating point least significative word in mA Phase B Irms measurement floating point least significative word in mA Mean Irms in mA I I I 3 floating point A B C least significative word Single phase ...

Page 13: ...actor floating point most significative word Phase B Power factor cos floating point most significative word Phase C Reactive Power in VAR floating point least significative word Reactive power three phase in VAR QA QB QC floating point least significant word Single phase or phase AApparent Power in VA floating point least significative word Phase B Apparent Power in VA floating point least signif...

Page 14: ...tive energy three phase in Wh E E E A B C floating point most significative word Single phase or phase A Vrms normalised 0 10000 Single phase or phase A Irms normalised 0 10000 Phase B Vrms normalised 0 10000 Phase B Irms normalised 0 10000 Phase C Vrms normalised 0 10000 Phase C Irms normalised 0 10000 Mean Vrms V V V 3 normalised A B C 0 10000 Phase C Power factor cos floating point least signif...

Page 15: ... C Reactive Power normalised 10000 10000 40207 VAR_3PH_INT Three phase reactive power Q Q Q A B C normalised 10000 10000 40208 VA_A_INT Single phase or phase A Apparent Power normalised 0 10000 40209 VA_B_INT Phase B Apparent Power normalised 0 10000 40210 VA_C_INT Phase C Apparent Power normalised 0 10000 40211 VA_3PH_INT Apparent power three phase S S S A B C normalised 0 10000 40212 cos _A_INT ...

Page 16: ...figured by default to retransmit on the analogue output the THREE PHASE POWER measured on a 4 wire connection three phase neutral The parameters are as follows P tot W 9000 Out 4 20 mA I TA 5 A V 600 Vac This configuration allows you to get maximum power with external TA ratio 1 1 WARNING the external TA is always necessary because the instrument performs the measurement of current through not iso...

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