Energy Management Power Analyzer Type WM14-96 Profibus DP
Class 1 (active energy) Class 2 (reactive energy) Accuracy 0.5 F.S. (current/voltage) Power analyzer Display of instantaneous variables: 3x3 digit Display of energies: 8+1 digit System variables and phase measurements: W, Wdmd, var, VA, VAdmd, PF, V, A, An, Admd, Hz Amax, Admd max, Wdmd max indication Energy measurements: kWh and kvarh Hour counter (5+2 DGT) TRMS meas. of distorted sine waves (voltages/currents) Galvanically insulated measuring inputs Profibus DP-V0 serial port Alarms (visual only) VLN, An Power supply: 90 to 260VAC/DC
Protection degree (front): IP65 Front dimensions: 96x96mm

Product Description

3-phase power analyzer with built-in programming keypad. Particularly recommended for displaying the main electrical variables. Housing for panel mounting, (front) protection degree IP65 and Profibus DP communication port.

How to order

Model Range code System Power supply Option

WM14-96 AVH DGX

Type Selection
Range codes AV5: 380/660VL-L/5(6)AAC VL-N: 185 V to 460 V VL-L: 320 V to 800 V AV6: 120/208VL-L/5(6)AAC VL-N: 45 V to 145 V VL-L: 78 V to 250 V Phase current: 0.03A to 6A Neutral current: 0.09 to 6A System 3: 1-2-3-phase, balanced/unbalanced load,with or without neutral Power supply H: 90 to 260VAC/DC Options DG: Profibus DP + galvanic insulated measuring inputs

Input specifications

Rated inputs Current Voltage Accuracy (display, RS485) (@25C 5C, R.H. 60%) Current Neutral current Phase-phase voltage Phase-neutral voltage Active and Apparent power Reactive power Active energy Reactive energy with CT=1 and VT=1 AV5: 1150W-VA-var, FS:230VLN, 400VLL; AV6: 285W-VA-var, FS:57VLN, 100VLL 0.25 to 6A: (0.5% FS +1DGT) 0.03A to 0.25A: (0.5%FS+7DGT) 0.25 to 6A: (1.5% FS +1DGT) 0.09A to 0.25A: (0.5%FS+7DGT) (1.5% FS +1 DGT) (0.5% FS + 1 DGT) 0.25 to 6A: (1% FS +1DGT); 0.03A to 0.25A: (1% FS +5DGT) 0.25 to 6A: (2% FS +1DGT); 0.03A to 0.25A: (2% FS +5DGT) Class 1 (start up I: 30mA) Class 2 (start up I: 30mA) Frequency Additional errors Humidity Temperature drift Sampling rate Display refresh time Display Type Read-out for instant. var. Read-out for energies Read-out for hour counter Measurements 0.1Hz (48 to 62Hz) 0.3% FS, 60% to 90% RH 200ppm/C 1400 samples/s @ 50Hz 1700 samples/s @ 60Hz 700ms LED, 14mm 3x3 DGT 3+3+3 DGT (Max indication: 99.9) 1+3+3 DGT (Max. indication: 9.99) Current, voltage, power, power factor, frequency, energy, TRMS measurement of distorted waves. Direct

Coupling type

Specifications are subject to change without notice

WM14-96PDS 080906

WM14-96
Input specifications (cont.)
Crest factor Input impedance 380/660VL-L (AV5) 120/208VL-L (AV6) Current < 3, max 10A peak 1 M 1% 1 M 1% 0.02 Frequency Overload protection Continuous voltage/current For 500ms: voltage/current 48 to 62 Hz 1.2 F.S. 2 Un/36A
Profibus DP Serial Port Specifications
Profibus Type Connections Data DP-V0 enable only for data reading max distance (1200m @ 9.6kbit/s, 100m @ 6Mbit/s) according to IEC61158, 9-pole connector and 10 screw terminals block. 1 to 125, key-pad selectable Profibus DP-V0 Dynamic (reading only) Baud-rate System, phase variables and energies Up to 6Mbit/s (mainly depending on the length of the wiring and on the number of instruments belonging to the network)

Addresses Protocol

Software functions
Password 1st level 2nd level System selection Numeric code of max. 3 digits; 2 protection levels of the programming data Password 0, no protection Password from 1 to 999, all data are protected 3-phase with/without n, unbal. 3-phase balanced 3-phase ARON, unbalanced 2-phase Single phase 1 to 999 1.0 to 99.to 100% of the input display scale 1 to 16 Measurements, alarms, serial out. (fundamental var: V, A, W and their derived ones). Up to 3 variables per page Page 1: V L1, V L2, V L3 Page 2: V L12, V L23, V L31 Page 3: A L1, A L2, A L3 Page 4: A L1 dmd, A L2 dmd, A L3 dmd Page 5: An, An Alarm Page 6: W L1, W L2, W L3 Page 7: PF L1, PF L2, PF L3 Page 8: var L1, var L2, var L3 Page 9: VA L1, VA L2, VA L3 Page 10: VA , W , var Page 11: VA dmd, W dmd, Hz Page 12: W dmd max (*) Page 13: Wh (*) Page 14: varh (*) Page 15: VL-L , PF , VLN Alarm Page 16: A max (*) Page 17: A dmd max (*) Page 18: hour counter (*) (*) = These variables are stored in EEPROM when the instrument is switched off Programmable, for the VLN and An (neutral current). Note: the alarm is only visual, by means of LED on the front of the instrument. Independent for: alarm (VLN, An) max: A dmd, W dmd all energies (Wh, varh) and hour counter
Transformer ratio CT VT Filter Operating range Filtering coefficient Filter action

Alarms

Displaying 3-phase system with neutral
Power Supply Specifications
Auxiliary power supply 90 to 260 VAC/DC Power consumption AC: 4.5 VA DC: 4W

General Specifications

Operating temperature Storage temperature Installation category Insulation (for 1 minute) 0 to +50C (32 to 122F)
(RH < 90% non condensing)
EMC (cont.) Immunity Pulse voltage (1.2/50s) Safety standards Approvals Connections 5(6) A Max cable cross sect. area Housing Dimensions (WxHxD) Material Mounting Protection degree Weight

-10 to +60C (14 to 140F)

Dielectric strength EMC Emissions
Cat. III (IEC 60664, EN60664) 4000VAC between measuring inputs and power supply. 2000VAC between measuring inputs and the communication port. 2000VAC between power supply and the communication port. 4000 VAC (for 1 min) EN50084-1 (class A) residential environment, commerce and light industry

EN61000-6-2 (class A) industrial environment. EN61000-4-5 IEC60664, EN60664 CE Screw-type 2.5 mmx 96 x 63 mm ABS self-extinguishing: UL 94 V-0 Panel Front: IP65 (standard) Connections: IP20 Approx. 400 g (pack. incl.)

Display pages

Display variables in 3-phase systems (in a 3-phase system with neutral) No 1st variable 2nd variable 3rd variable 1 V L1 V L2 V LV L12 V L23 V L18 A L1 A L1 dmd An W L1 PF L1 var L1 VA L1 VA system VA dmd (system) Wh (MSD) varh (MSD) V LL system A MAX A dmd max h A L2 A L2 dmd AL.n W L2 PF L2 var L2 VA L2 W system W dmd (system) W dmd MAX Wh varh AL.U W L3 PF L3 var L3 VA L3 var system Hz (system) Wh (LSD) varh (LSD) PF system A L3 A L3 dmd Note Decimal point blinking on the right of the display dmd = demand (integration time selectable from 1 to 30 minutes) AL.n if neutral current alarm is active Decimal point blinking on the right of the display if generated power Decimal point blinking on the right of the display if generated power
dmd = demand (integration time selectable from 1 to 30 minutes) Maximum sys power demand The total indication is given in max 3 groups of 3 digits. The total indication is given in max 3 groups of 3 digits. AL.U= is activated only if one of VLN is not within the set limits. max. current among the three phases max. dmd current among the three phases hour counter
MSD: most significant digit LSD: least significant digit
Specifications are subject to change without notice WM14-96PDS 080906

Display pages (cont.)

V A VA W k M
1) Example of kWh visualization: This example is showing 453.7 kWh

V A VA W

2) Example of kvarh visualization:

var Hz

PF dmd
This example is showing 944.9 kvarh
Waveform of the signals that can be measured
Figure A Sine wave, undistorted Fundamental content 100% Harmonic content 0% 1.1107 | A | Arms =
Figure B Sine wave, indented Fundamental content 10.100% Harmonic content 0.90% Frequency spectrum: 3rd to 16th harmonic Additional error: <1% FS
Figure C Sine wave, distorted Fundamental content 70.90% Harmonic content 10.30% Frequency spectrum: 3rd to 16th harmonic Additional error: <0.5% FS

Insulation between inputs and outputs
Measuring Inputs V Measuring Inputs V Measuring Inputs A Profibus Port Power supply

2kV 4kV

Measuring Inputs A

Profibus Port

2kV 2kV 2kV

Power Supply

4kV 4kV 2kV -
NOTE: In case of fault of first insulation the current from the measuring inputs to the ground is lower than 2 mA.

Accuracy

kWh, accuracy (RDG) depending on the current PF=1

+1.5% +1%

kvarh, accuracy (RDG) depending on the current PF=L0.5 or C0.8

+ 1% +2.5% +2%

+1% +1.5% - 1%

+2% +2.5%

PF=1 PF=L0.5 or C0.8
0.10A (0.02In) 0.25A (0.05In)
0.25A (0.05In) 0.5A (0.1In)

5A (In) 5A (In)

6A (Imax) 6A (Imax)

sin=1 sin=0.5

0.1A (0.02In) 0.25A (0.05In)
Class 1 accuracy limits (Active energy) 5(6A) Start-up current: 30mA
Class 2 accuracy limits (Reactive energy) 5(6A) Start-up current: 30mA
Used calculation formulas
Phase variables Instantaneous effective voltage Instantaneous apparent power 3-phase active power
Instantaneous reactive power Instantaneous active power System variables Equivalent 3-phase voltage

3-phase apparent power

3-phase power factor
Instantaneous power factor
Neutral current Instantaneous effective current 3-phase reactive power An = AL1 + AL2 + AL3
Energy metering Where: i = considered phase (L1, L2 or L3) P = active power Q = reactive power t1, t2 = starting and ending time points of consumption recording n = time unit t = time interval between two successive power consumptions n1, n2 = starting and ending discrete time points of consumption recording

Wiring diagrams

Fig. 1

Fig. 2

L1 L2 L3 N

CT connection

3CT and 3VT connection

Fig. 3

Fig. 4

Fig. 5

L1 L2 L3

L1 L2 N

ARON and VT connection

2-phase connection

3-phase load balanced connection

Fig. 6

Power Supply Fig. 7
NOTE: the direct connection is not allowed.

1-phase connection

F= 630 mA T 250V 5x20mm
Profibus port Wiring diagrams
Terminate the first WM14 and the last WM14 by means of the screw terminals T1, T2, T3. Use a two pole shielded cable, about the connection length (from the first to the last instrument) refer to TAB1.

Instrument 1

Instrument 2

Last instrument

Termination Switch
Terminate the first WM14 positioning the dip-switch in ON on the Con P connector and the last WM14 by connecting T1, T2, T3. Use a two pole shielded cable, about the connection length (from the first to the last instrument) refer to TAB1.
Profibus port Wiring diagrams (cont.)

TAB 1 Kbit/s 9.6 / 19.2 / 45.45 / 93.75 187./ m 100

Pin no. 9

Signal Shield M24 1B (*) CNTR-P (RTS) GND (*) VP (*) P24 1A (*) CNTR-N

Meaning

Shield/ protective ground Ground of 24V output voltage Receive data / transmission data (+) Control signal for repeater (direction control) Data transmission potential (ground to 5 V) Supply voltage of the terminatig resistor-P, (P5V) Output voltage 24V (+) Receive data / transmission data (-) Control signal for repeater (direction control)
Not connected Not connected

RxD/TxD-P

Not connected

RxD/TxD-N

(*) The mandatory signals have to be made available by the user.

Front Panel Description

1. Key-pad To program the configuration parameters and the display of the variables. 2
Key to enter programming and confirm selections; Keys to: - programme values; - select functions; - display measuring pages.
2. Display LED-type with alphanumeric indications to: - display configuration parameters; - display all the measured variables.
Dimensions and Panel Cut-out

61.4mm 64.4mm

15.4mm

Energy Management Power Analyzer Type WM14-96 Basic Version
Class 1 (active energy) Class 2 (reactive energy) Accuracy 0.5 F.S. (current/voltage) Power analyzer Display of instantaneous variables: 3x3 digit Display of energies: 8+1 digit System variables and phase measurements: W, Wdmd, var, VA, VAdmd, PF, V, A, An, Admd, Hz Amax, Admd max, Wdmd max indication Energy measurements: kWh and kvarh Hour counter (5+2 DGT) TRMS meas. of distorted sine waves (voltages/currents) Power supply: 24V, 48V, 115V, 230V, 50-60Hz; 18 to 60VDC Protection degree (front): IP65 Front dimensions: 96x96mm Optional RS422/485 serial port
Optional dual pulse output Alarms (visual only) VLN, An Optional galvanically insulated measuring inputs

Product Description

3-phase power analyzer with built-in programming keypad. Particularly recommended for displaying the main electrical variables. Housing for panel mounting, (front) protection degree IP65, and optional RS485 serial port or dual pulse output. Parameters programmable by means of CptBSoft.

How to order

Model Range code System Power supply Option

WM14-96 AVD PGX

CptBSoft

Type Selection

Range codes AV5: 380/660VL-L/5(6)AAC VL-N: 185 V to 460 V VL-L: 320 V to 800 V AV6: 120/208VL-L/5(6)AAC VL-N: 45 V to 145 V VL-L: 78 V to 250 V Phase current: 0.03A to 6A Neutral current: 0.09 to 6A System 3: 1-2-3-phase, balanced/unbalanced load,with or without neutral
CptBSoft (compatible only with S or SG options): software to program the working parameters of the power analyzer and to read the energy and the instantaneous variables. Power supply A: B: C: D: 3: 24VAC -15+10%, 50-60Hz 48VAC -15+10%, 50-60Hz 115VAC -15+10%, 50-60Hz 230VAC -15+10%, 50-60Hz 18 to 60VDC (not available in case of SG or PG options) Options X: S: SG: PG: None RS485 port RS485+galvanic insulated measurig inputs Dual pulse output + galvanically insulated measuring inputs.

Input specifications

Rated inputs Current X-S options Current SG-PG options Voltage Accuracy (display, RS485) (@25C 5C, R.H. 60%) Current Neutral current Phase-phase voltage Phase-neutral voltage Active and Apparent power, Reactive power 3 (non insulated each other) 3 (insulated each other) 4 with CT=1 and VT=1 AV5: 1150W-VA-var, FS:230VLN, 400VLL; AV6: 285W-VA-var, FS:57VLN, 100VLL 0.25 to 6A: (0.5% FS +1DGT) 0.03A to 0.25A: (0.5%FS+7DGT) 0.25 to 6A: (1.5% FS +1DGT) 0.09A to 0.25A: (0.5%FS+7DGT) (1.5% FS +1 DGT) (0.5% FS + 1 DGT) 0.25 to 6A: (1% FS +1DGT); 0.03A to 0.25A: (1% FS +5DGT) 0.25 to 6A: (2% FS +1DGT); Active energy X-S option Reactive energy X-S option Active energy SG-PG opt. Reactive energy SG-PG opt. Frequency Additional errors Humidity Temperature drift Sampling rate Display refresh time Display Type Read-out for instant. var. Read-out for energies 0.03A to 0.25A: (2% FS +5DGT) Class 2 (start up I: 30mA) Class 3 (start up I: 30mA) Class 1 (start up I: 30mA) Class 2 (start up I: 30mA) 0.1Hz (48 to 62Hz) 0.3% FS, 60% to 90% RH 200ppm/C 1400 samples/s @ 50Hz 1700 samples/s @ 60Hz 700ms LED, 14mm 3x3 DGT 3+3+3 DGT (Max indication: 99.9)
Specifications are subject to change without notice

WM14-96DS 310706

WM14-96
Input specifications (cont.)
Display (cont.) Read-out for hour counter Measurements 1+3+3 DGT (Max. indication: 9.99) Current, voltage, power, power factor, frequency, energy, TRMS measurement of distorted waves. Direct < 3, max 10A peak (X-S options) 1 M 5% 120/208VL-L (AV6) Current Input impedance 380/660VL-L (AV5) 120/208VL-L (AV6) Current Frequency Overload protection Continuos voltage/current For 500ms: voltge/current 453 K 5% 0.02 (PG-SG options) 1 M 1% 1 M 1% 0.to 62 Hz 1.2 F.S. 2 Un/36A
Coupling type Crest factor Input impedance 380/660VL-L (AV5)
RS485 Serial Port Specifications
RS422/RS485 (on request) Type Connections Addresses Protocol Multidrop bidirectional (static and dynamic variables) 2 or 4 wires, max. distance 1200m, termination directly on the instrument 1 to 255, key-pad selectable MODBUS/JBUS Data (bidirectional) Dynamic (reading only) Static (writing only) Data format Baud-rate System, phase variables and energies All configuration parameters 1 bit di start , 8 data bit, no parity, 1 stop bit 9600 bit/s

CptBSoft software: parameter programming and reading data
CptBSoft Multi language software to program the working parameters of the power analyzer and to read the energies and the instantaneous variables. The program runs under Windows 95/98/98SE/2000/ Working mode NT/XP. Two different working modes can be selected: - management of a local RS485 network; - management of communication from a single instrument to PC (RS232); By means of RS485 serial port.

Data access

Dual pulse output
Digital outputs (on request) Pulse outputs Number of outputs Number of pulses Electrical life: min 2*105 cycles Mechanial life: 5*106 cycles 100ms <120ms (ON) 100ms (OFF) According to EN622053-31 By means of relays, 4000 VRMS outputs to measuring inputs, 4000 VRMS output to supply input. Insulation between the two outputs: 1000VRMS

WM14-96 DS 310706

Output type
2 (one for kWh one for kvarh) From 0.01 to 999 in compliance with the following formula: [Psys max (kW or kvar)*pulses (pulses/kWh or kvarh)] <14400 Relay min current: 0.05A@250VAC/30VDC max current: 5A@250VAC/30VDC

Pulse duration

Insulation

Software functions

Password 1st level 2nd level System selection Numeric code of max. 3 digits; 2 protection levels of the programming data Password 0, no protection Password from 1 to 999, all data are protected 3-phase with/without n, unbal. 3-phase balanced 3-phase ARON, unbalanced 2-phase Single phase 1 to 999 1.0 to 99.to 100% of the input display scale 1 to 16 Measurements, alarms, serial out. (fundamental var: V, A, W and their derived ones). Up to 3 variables per page Page 1: V L1, V L2, V L3 Page 2: V L12, V L23, V L31 Page 3: A L1, A L2, A L3 Page 4: A L1 dmd, A L2 dmd, A L3 dmd Page 5: An, An Alarm Page 6: W L1, W L2, W L3 Page 7: PF L1, PF L2, PF L3 Page 8: var L1, var L2, var L3 Page 9: VA L1, VA L2, VA L3 Page 10: VA , W , var Page 11: VA dmd, W dmd, Hz Page 12: W dmd max (*) Page 13: Wh (*) Page 14: varh (*) Page 15: VL-L , PF , VLN Alarm Page 16: A max (*) Page 17: A dmd max (*) Page 18: hour counter (*) (*) = These variables are stored in EEPROM when the instrument is switched off Programmable, for the VL and An (neutral current). Note: the alarm is only visual, by means of LED on the front of the instrument. Independent alarm (VL, An) max: A dmd, W dmd all energies (Wh, varh) and hour counter
Transformer ratio CT VT Filter Operating range Filtering coefficient Filter action

Alarms

Displaying 3-phase system with neutral
Power Supply Specifications
Auxiliary power supply 230VAC -15 +10%, 50-60Hz 115VAC -15 +10%, 50-60Hz 48VAC -15 +10%, 50-60Hz 24VAC -15 +10%, 50-60Hz 18 to 60VDC AC: 4.5 VA DC: 4W

Power consumption

General Specifications
Operating temperature Storage temperature Installation category Insulation (for 1 minute) 0 to +50C (32 to 122F)

(RH < 90% non condensing)
-30 to +60C (-22 to 140F)
Cat. III (IEC 60664, EN60664) 4000VAC, 500VDC between mesuring inputs and power supply. 500VAC/DC between
Dielectric strength EMC Emissions
mesuring inputs and RS485. 4000VAC, 500VDC between power supply and RSVAC (for 1 min) EN50084-1 (class A) residential environment, commerce and light industry
General Specifications (cont.)
EMC (cont.) Immunity Pulse voltage (1.2/50s) Safety standards Approvals Connections 5(6) A Max cable cross sect. area EN61000-6-2 (class A) industrial environment. EN61000-4-5 IEC60664, EN60664 CE, (cURus, CSA only X and S options) Screw-type 2.5 mm2 Housing Dimensions (WxHxD) Material Mounting Protection degree 96 x 96 x 63 mm ABS self-extinguishing: UL 94 V-0 Panel Front: IP65 (standard), NEMA4x, NEMA12 Connections: IP20 Approx. 400 g (pack. incl.)

Weight

Display pages
Display variables in 3-phase systems (in a 3-phase system with neutral) No 1st variable 2nd variable 3rd variable 1 V L1 V L2 V LV L12 V L23 V L18 A L1 A L1 dmd An W L1 PF L1 var L1 VA L1 VA system VA dmd (system) Wh (MSD) varh (MSD) V LL system A MAX A dmd max h A L2 A L2 dmd AL.n W L2 PF L2 var L2 VA L2 W system W dmd (system) W dmd MAX Wh varh AL.U W L3 PF L3 var L3 VA L3 var system Hz (system) Wh (LSD) varh (LSD) PF system A L3 A L3 dmd Note Decimal point blinking on the right of the display dmd = demand (integration time selectable from 1 to 30 minutes) AL.n if neutral current alarm is active Decimal point blinking on the right of the display if generated power Decimal point blinking on the right of the display if generated power
dmd = demand (integration time selectable from 1 to 30 minutes) Maximum sys power demand The total indication is given in max 3 groups of 3 digits. The total indication is given in max 3 groups of 3 digits. AL.U= is activated only if one of VLN is not within the set limits. max. current among the three phases max. dmd current among the three phases hour counter
MSD: most significant digit LSD: least significant digit

V A VA W

1) Example of kWh visualization: This example is showing 453.7 kWh
2) Example of kvarh visualization:

var Hz

PF dmd
This example is showing 944.9 kvarh
Waveform of the signals that can be measured
Figure A Sine wave, undistorted Fundamental content 100% Harmonic content 0% Arms = 1.1107 | A |
Figure B Sine wave, indented Fundamental content 10.100% Harmonic content 0.90% Frequency spectrum: 3rd to 16th harmonic Additional error: <1% FS
Figure C Sine wave, distorted Fundamental content 70.90% Harmonic content 10.30% Frequency spectrum: 3rd to 16th harmonic Additional error: <0.5% FS

Accuracy

kWh, accuracy (RDG) depending on the current PF=1

+2.5% +2% +1.5% +1%

kvarh, accuracy (RDG) depending on the current PF=L0.5 or C0.8 Error

+4% +3% +2.5% +2%

Class 2 Class 1 Class 2

+1.5% + 1%

Class 3 Class 2 Class 3

+1% +1.5% +2% +2.5%

- 1% -1.5% +2% +2.5% +3% +4%

PF=1 PF=L0.5 or C0.8

0.10A (0.02In) 0.25A (0.05In)
0.25A (0.05In) 0.5A (0.1In)

5A (In) 5A (In)

6A (Imax) 6A (Imax)

sin=1 sin=0.5

0.1A (0.02In) 0.25A (0.05In)
Class 2 accuracy limits (Active energy) 5(6A) Start-up current: 30mA
Class 3 accuracy limits (Reactive energy) 5(6A) Start-up current: 30mA
: this graph is only referred to instrument models with the SG or PG option. : this graph is only referred to instrument models with the X or S option.
Used calculation formulas
Phase variables Instantaneous effective voltage Instantaneous apparent power 3-phase active power
Instantaneous reactive power Instantaneous active power System variables Equivalent 3-phase voltage

3-phase apparent power

3-phase power factor
Instantaneous power factor
Neutral current Instantaneous effective current 3-phase reactive power An = AL1 + AL2 + AL3
Used calculation formulas (cont.)
Energy metering Where: i = considered phase (L1, L2 or L3) P = active power Q = reactive power t1, t2 = starting and ending time points of consumption recording n = time unit t = time interval between two successive power consumptions n1, n2 = starting and ending discrete time points of consumption recording

Wiring diagrams

Fig. 1 Fig. 2 Fig. 3

CT connection Fig. 4

3CT and 3VT connection Fig. 5
ARON and VT connection Fig. 6

2-phase connection

3-phase load balanced connection

1-phase connection

NOTE: Only for PG and SG options: the current measuring inputs are galvanically insulated and therefore they can be connected to ground singly. NOTE: For all models except for PG or SG the current inputs can be connected to the lines ONLY by means of current transformers. The direct connection is not allowed. ATTENTION: only one ammeter input can be connected to earth, as shown in the electrical diagrams.
Specifications are subject to change without notice WM14-96 DS 310706

RS485 port connections

GND T RX+ RXTX+ TX-
Dual pulse output connections

Fig. 8

Pulse 1
RS485 RS232 TX+ TXRX+ RX-

4-wire connection 8 9

GND RS485 RS232 TX+ TXRX+ RX-

2-wire connection

Fig. 7: a-Last instrument; b-1.n Instrument c-RS485/232 serial converter

Front Panel Description

1. Key-pad To program the configuration parameters and the display of the variables.
Key to enter programming and confirm selections; Keys to: - programme values; - select functions; - display measuring pages.
2. Display LED-type with alphanumeric indications to: - display configuration parameters; - display all the measured variables.
Dimensions and Panel Cut-out

61.4mm

15.4mm

Pulse 2