Seneca S203TA-D User manual

Page 1
MI003416
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USER MANUAL
S203TA-D
S203RC-D
Advanced Energy Analyzers

USER MANUAL –S203TA-D / S203RC-D
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Date
Revision
Notes
27/06/2013
9
Changed the Current Modbus registers (phase
A, B, C, Average) measure unit from [Arms] to
[mA rms]
Changed Phase Voltage error level from 40.0V
to 45.0V (firmware SW002633)
27/06/2013
10
Added Modbus Registers Phase A, B, C, Average
in [Arms] (from firmware SW002634)
29/08/2013
11
Fixed internal code MIxxxx
Changed Seneca Addresses
25/09/2013
12
Added Response time chapter
01/10/2013
13
Added status register (40133) Phase Sequence
error bit
18/12/2013
14
Changed chapter “Digital Output Electrical
Connections”
New features from firmware SW002635 :
-Added energies fractional values
-Added Reactive energy integration
-Added configurable option to prevent energy
values modification through RS485
-Added digital output counter functions for
reactive energy
-Added diagnostics display page (phases
connection status/energy status)
-Added measures on display (maximum active
power, maximum reactive power)
-Added average active power on demand time
(configurable)
-Added rogowski probe configurable
parameter
22/01/2014
15
-Add impulse time value on Digital Output
chapter
02/04/2014
16
-Add Rogowski Coil full scale configuration in
the modbus registers and S203RC-D electrical
connection.
-Modified the firmware update chapter
18/04/2014
17
-Add demand time calculation info

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Index
SENECA S203TA-D / S203RC-D........................................................................................7
1. INTRODUCTION...........................................................................................................8
1.1. FEATURES................................................................................................................8
1.2. ELECTRICAL MEASURE ON DISPLAY...................................................................8
1.3. ELECTRICAL MEASURE ON MODBUS RTU INTERFACE ....................................9
1.4. ELECTRICAL MEASURE ON ANALOG OUTPUT.................................................10
1.5. ELECTRICAL MEASURE ON DIGITAL OUTPUT..................................................11
1.6. S203TA-D INSERTION TYPES...............................................................................11
1.7. S203RC-D INSERTION TYPES ..............................................................................12
1.8. MEASURES RESPONSE TIME ..............................................................................12
2. S203TA-D ELECTRICAL CONNECTIONS ................................................................12
2.1. S203 TA-D TERMINAL POSITIONS.......................................................................13
2.2. SINGLE PHASE INSERTION..................................................................................13
2.3. SINGLE PHASE INSERTION WITH CT..................................................................13
2.4. SINGLE PHASE INSERTION WITH VT..................................................................14
2.5. SINGLE PHASE INSERTION WITH CT AND VT....................................................14
2.6. ARON INSERTION WITH CTS................................................................................14
2.7. ARON INSERTION WITH CTS AND VTS...............................................................15
2.8. 4 WIRE WITH NEUTRAL INSERTION WITH CTS..................................................15
2.9. 3-PHASE WITHOUT NEUTRAL INSERTION WITH CTS.......................................15

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2.10. 3-PHASE WITHOUT NEUTRAL INSERTION WITH CTS AND VTS...................15
3. S203RC-D ELECTRICAL CONNECTIONS................................................................17
3.1. S203 RC-D TERMINAL POSITIONS.......................................................................17
3.2. SINGLE PHASE INSERTION..................................................................................18
3.3. SINGLE PHASE INSERTION WITH VT..................................................................18
3.4. ARON INSERTION..................................................................................................19
3.5. ARON INSERTION WITH VTS................................................................................19
3.6. 4 WIRE WITH NEUTRAL INSERTION....................................................................19
3.7. 3-PHASE WITHOUT NEUTRAL INSERTION WITH VTS.......................................20
4. ANALOG OUTPUT.....................................................................................................21
4.1. ANALOG OUTPUT IN VOLTAGE MODE CONNECTIONS....................................21
4.2. ANALOG OUTPUT IN CURRENT ACTIVE MODE CONNECTIONS......................21
4.3. ANALOG OUTPUT IN CURRENT PASSIVE MODE CONNECTIONS...................21
5. DIGITAL OUTPUT......................................................................................................22
5.1. DIGITAL OUTPUT ELECTRICAL CONNECTIONS................................................22
6. THE DISPLAY.............................................................................................................23
6.1. ELECTRICAL SYMBOLS ON DISPLAY.................................................................23
6.1.1. 4 WIRES INSERTION (WITH OR WITHOUT NEUTRAL)....................................23
6.1.2. 1 WIRE INSERTION.............................................................................................27
6.1.3. ARON INSERTION...............................................................................................28
6.2. DIAGNOSTICS PAGE.............................................................................................30

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6.3. DISPLAY MENÙ......................................................................................................30
6.3.1. A) MEASURE CONFIG........................................................................................31
6.3.1. B) CONFIG RS485...............................................................................................32
6.3.1. C) OUT MEASURE ..............................................................................................33
6.3.1. D) COUNTERS.....................................................................................................34
6.3.1. E) DISPLAY..........................................................................................................35
6.3.1. F) USER TARATURES ........................................................................................37
7. ENERGY COUNTERS................................................................................................39
7.1. ENERGY COUNTER OVERFLOW .........................................................................40
7.2. NON VOLATILE MEMORY ENERGY BACKUP.....................................................40
8. USING S203RC-D WITH A CUSTOM ROGOWSKI COIL..........................................41
9. SERIAL COMMUNICATION.......................................................................................41
9.1. MODBUS RTU PROTOCOL ...................................................................................42
9.1.1. ABBREVIATION USED .......................................................................................43
9.1.2. MODBUS REGISTER ADDRESSES ...................................................................44
10. DEBUG LEDS .........................................................................................................53
11. THE KIT-USB ..........................................................................................................54
12. WINDOWS USB DRIVERS INSTALLATION ..........................................................55
13. OTHERS OPERATING SYSTEM DRIVERS:..........................................................56
14. EASY SETUP SOFTWARE FOR WINDOWS .........................................................57
14.1. FIRMWARE UPDATE ..........................................................................................61

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Seneca S203TA-D / S203RC-D
CAUTION!
UNDER ANY CIRCUMSTANCES, SENECA S.R.L. OR ITS SUPPLIERS SHALL NOT BE RESPONSIBLE FOR
LOSS OF RECORDING DATA/INCOMES OR FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE DUE
TO NEGLECT OR RECKLESS MISHANDLING OF S203TA-D/S203RC-D, EVEN THOUGH SENECA IS
WELL AWARE OF THESE POSSIBLE DAMAGES.
SENECA, ITS SUBSIDIARIES, AFFILIATES, COMPANIES OF THE GROUP, ITS SUPPLIERS AND
RETAILERS SHALL NOT GUARANTEE THAT THE FUNCTIONS WILL SATISFY COMPLETELY
CUSTOMER’S EXPECTATIONS OR THAT S203TA-D/S203RC-D , THE FIRMWARE AND THE
SOFTWARE SHALL HAVE NO ERRORS OR WORK CONTINUOUSLY.

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1. Introduction
Models S203TA-D and S203RC-D are a complete three-phase energy analyzers with display, suited for use
with up to 600Vac voltage range (without a TV transformer), and max current equal to 5A (without a TA
transformer) connected to the inputs. A double serial interface (USB or RS485) it’s also available (Modbus
RTU protocol).
Analog and digital outputs can be connected to the electrical measure.
1.1. Features
Energy values backup (FeRAM backup values without battery need)
Last screen page displayed backup (FeRAM backup without battery need)
Easy configurable by free configuration software or by display menu
RS485 serial communication with MODBUS-RTU protocol, maximum 32 nodes.
USB serial communication with Modbus RTU protocol for registers access and configuration
High precision: 0,2%class (S203TA-D).
Protection against ESD discharge up to 4 kV.
Measure input insulation: 4000 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.
Digital output pulse signal for Energy or Energy sign.
Possibility for connection and management by external CTs with 5A output.
Possibility for connection and management by external VTs.
All kind of insertion possible: single phase, Aron, 4-wires, 3-wires .
Possibility to compensate errors caused by frequency change in places where network frequency is
not stable (frequency changes > 30 mHz).
USB Firmware update
Easy-wiring of power supply and serial bus by means of the bus housed in the DIN rail.
S203RC-D can be used with rogowski coil with full scale of +-50mV,+-100mV or +-200 mV
1.2. Electrical Measure on Display
The instruments provide all the following electrical measurable quantities by the display:
V RMS (phase A to neutral)
V RMS (phase B to neutral)
V RMS (phase C to neutral)
V RMS 3-phase
I RMS phase A
I RMS phase B
I RMS phase C
I RMS 3-phase
P ACTIVE phase A
P ACTIVE phase B
P ACTIVE phase C
P ACTIVE 3-phase
Q reactive phase A
Q reactive phase B
Q reactive phase C
Q reactive 3-phase
S apparent phase A
S apparent phase B

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S apparent phase C
S apparent 3-phase
Cosfi phase A
Cosfi phase B
Cosfi phase C
Cosfi 3-phase
Active Energy phase A
Active Energy phase B
Active Energy phase C
Active Energy 3-phase
Only positive Active Energy 3-phase
Only negative Active Energy 3-phase
Phase A frequency
Reactive Energy phase A
Reactive Energy phase B
Reactive Energy phase C
Reactive Energy 3-phase
Only positive Reactive Energy 3-phase
Only negative Reactive Energy 3-phase
Maximum P Active value phase A
Maximum P Active value 3-phase
Maximum Q Reactive value phase A
Maximum Q Reactive value 3-phase
Average Active power 3-phase/A-phase value for demand time (configurable).
1.3. Electrical Measure on Modbus RTU Interface
By the serial RS485 or USB (Modbus RTU Protocol) the following electrical measurable quantities are
available:
V RMS (phase A to neutral)
V RMS (phase B to neutral)
V RMS (phase C to neutral)
V RMS 3-phase
I RMS phase A
I RMS phase B
I RMS phase C
I RMS 3-phase
P ACTIVE phase A
P ACTIVE phase B
P ACTIVE phase C
P ACTIVE 3-phase
Q reactive phase A
Q reactive phase B
Q reactive phase C
Q reactive 3-phase
S apparent phase A
S apparent phase B
S apparent phase C
S apparent 3-phase
Cosfi phase A
Cosfi phase B

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Cosfi phase C
Cosfi 3-phase
Active Energy phase A
Active Energy phase B
Active Energy phase C
Active Energy 3-phase
Only positive Active Energy phase A
Only positive Active Energy phase B
Only positive Active Energy phase C
Only positive Active Energy 3-phase
Only negative Active Energy phase A
Only negative Active Energy phase B
Only negative Active Energy phase C
Only negative Active Energy 3-phase
Phase A frequency
Reactive Energy phase A
Reactive Energy phase B
Reactive Energy phase C
Reactive Energy 3-phase
Only positive Reactive Energy phase A
Only positive Reactive Energy phase B
Only positive Reactive Energy phase C
Only positive Reactive Energy 3-phase
Only negative Reactive Energy phase A
Only negative Reactive Energy phase B
Only negative Reactive Energy phase C
Only negative Reactive Energy 3-phase
Maximum P Active value phase A
Maximum P Active value 3-phase
Maximum Q Reactive value phase A
Maximum Q Reactive value 3-phase
Average Active power 3-phase/A-phase value for demand time (configurable).
1.4. Electrical Measure on Analog Output
The modules can put to the analog output (configurable in current 0-20 mA, 4-20 mA or voltage 0-10 V) one
of the following electrical measurable quantities :
V RMS (phase A to neutral)
V RMS (phase B to neutral)
V RMS (phase C to neutral)
V RMS 3-phase
I RMS phase A
I RMS phase B
I RMS phase C
I RMS 3-phase
P ACTIVE phase A
P ACTIVE phase B
P ACTIVE phase C
P ACTIVE 3-phase
Cosfi phase A
Cosfi phase B
Cosfi phase C

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Cosfi 3-phase
1.5. Electrical Measure on Digital Output
The modules can put to the digital output (pulse weight configurable) one of the following electrical
measurable quantities :
Positive Active Energy phase A
Positive Active Energy phase B
Positive Active Energy phase C
Negative Active Energy phase A
Negative Active Energy phase B
Negative Active Energy phase C
3-phase only positive Active Energy
3-phase only negative Active Energy
Positive Reactive Energy phase A
Positive Reactive Energy phase B
Positive Reactive Energy phase C
Negative Reactive Energy phase A
Negative Reactive Energy phase B
Negative Reactive Energy phase C
3-phase only positive Reactive Energy
3-phase only negative Reactive Energy
1.6. S203TA-D Insertion types
The following insertion types are possible (CT = current transformer, VT = voltage transformer):
Single phase insertion
Single phase insertion with CT
Single phase insertion with VT
Single phase insertion with CT and VT
Aron insertion with CTs
Aron insertion with CTs and VTs
3-phase insertion with neutral with CTs
3-phase insertion without neutral with CTs
3-phase insertion without neutral with CTs and VTs
WARNING!
ARON insertion without CTs it’s not allowed (two phases are short circuited!)
3-PHASE insertion without CTs it’s not allowed (the phases are short circuited!)

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1.7. S203RC-D Insertion types
Single phase insertion
Single phase insertion with VT
Aron insertion
Aron insertion with VTs
3-phase insertion with neutral
3-phase insertion with neutral with VTs
3-phase insertion without neutral
3-phase insertion without neutral with VTs
1.8. Measures response time
S203TA-D (Typical):
63% IRMS 80 ms
100% IRMS 1000 ms
63% VRMS 100 ms
100% VRMS 960 ms
S203RC-D (Typical):
63% IRMS 40 ms
100% IRMS 1680 ms
63% VRMS 100 ms
100% VRMS 960 ms
Analog Output Response Time: Typical 10 ms (10-90%)
Modbus Response Time: Typical 5 ms
2. S203TA-D Electrical Connections
DANGER!
Never open the secondary circuit of CT under applying current to load.
Never remove the terminal block under applying current to load, will cause electric shock or
breakdown CT
WARNING!
ARON insertion without CTs it’s not allowed (two phases are short circuited!)
3-PHASE insertion without CTs it’s not allowed (the phases are short circuited!)
You can’t connect the secondary of any CTs to the Earth.
Terminals 14, 16 18 and 22 are internally connected!
Use CT with the secondary side current is 5A
All CTs connected should be the same.
When connecting CT, connect the secondary side to the terminal of the main unit
first, and after that wire the primary side to a load electric wire. Incorrect order might
cause an electric shock or break CT.

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The CT has polarity. Wrong direction can’t measure correctly (for example negative
current value instead of positive)
If there is some distortion by harmonic or waveform, it may not measure correctly.
Separate the wiring (strong electric part) of the measured voltage input terminal
(operating power supply terminal) from the CT cable. It may not satisfy the accuracy
due to noise.
Current Terminals Max 5A, Voltage Terminals Max 600V
2.1. S203 TA-D Terminal Positions
2.2. Single phase insertion
WARNING!
Pay attention to the different terminals positions in this schematics:
2.3. Single phase insertion with CT

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2.4. Single phase insertion with VT
I MAX = 5 A
2.5. Single phase insertion with CT and VT
2.6. Aron insertion with CTs

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2.7. Aron insertion with CTs and VTs
2.8. 4 wire with neutral insertion with CTs
2.9. 3-phase without neutral insertion with CTs
2.10. 3-phase without neutral insertion with CTs and VTs

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3. S203RC-D Electrical Connections
ROGOWSKI’S COIL WARNING!
Rogowski’s coil (accessory RC-V400-100) have been designed for accurate nonintrusive measurement of AC,
pulsed DC or complex waveforms.
To use in an appropriate way,
- wrap the ring on the conductor so that the arrow symbol (stamped in the ring) is oriented in the same
direction of the current in the conductor
- make sure that the connections are performed properly: the white output wire is positive (+), the brown
wire is the negative (-).
WARNING!
Connect the shield of the Rogowski’s coil at negative (-) (one of the terminals 14 or
16 or 18 or 22).
Terminals 14, 16 18 and 22 are internally connected
Voltage Terminals Max 600V
The Rogowski has polarity. Wrong direction can’t measure correctly (for example
negative current value instead of positive)
If there is some distortion by harmonic or waveform, it may not measure correctly.
Separate the wiring (strong electric part) of the measured voltage input terminal
(operating power supply terminal) from the CT cable. It may not satisfy the accuracy
due to noise.
The S203RC-D input full scale factory calibrated is only the +-100mV for 1000A.
Others full scale configurable are +-50 mV or +- 200mV for better measure precision,
but in this cases you must manually set the currents user calibration values.
3.1. S203 RC-D Terminal Positions

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3.2. Single phase insertion
3.3. Single phase insertion with VT

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3.4. Aron insertion
3.5. Aron insertion with VTs
3.6. 4 wire with neutral insertion

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3.7. 3-phase without neutral insertion with VTs