Satec RPT091 Quick Manual

RPT091

Remote Power

Transducer

QUICK GUIDE

BG0227 Rev. A2

RPT091 Remote Power Transducer

QUICK GUIDE

The RPT091 is a compact three-phase AC Remote Power Transducer. The unit operates with a remote master (computer or PLC), and with an optional Remote Display Module (RDM091) for local display/setup. The RDM091 is stand-alone or operable with a remote master, and can be panel-mounted or hand-held. Communications are via an RS-422 or RS485 line, operable in multi-drop mode for connection of up to 32 instruments to a single line.

IMPORTANT

Please read instructions contained in this manual before performing installation, and take note of the following precautions:

1. Ensure that all incoming AC power and other power sources are turned OFF before performing any work on the instrument.

Failure to do so may result in serious or even fatal injury

and/or

equipment damage.

2. Before connecting the instrument to the power source, check the labels on the side of the instrument to ensure that your instrument is equipped with the appropriate power supply voltage, input voltages, currents, analog output and communication protocol for your application. Also check the correctness of other ordering options.

3. Under no circumstances should the instrument be connected to a power source if it is damaged.

4. To prevent potential fire or shock hazard, do not expose the instrument to rain or moisture.

5. Mount the instrument away from heat sources in a dirt-free environment. Do not operate the instrument in direct sunlight.

6. The secondary of an external current transformer must never be allowed to be open circuit when the primary is energized. An open circuit can cause high voltages, possibly resulting in equipment damage, fire and even serious or fatal injury

. Ensure that the current transformer wiring is made through shorting switches and is secured using an external strain relief to reduce mechanical strain on the screw terminals, if necessary.

7. The RPT091 relays should not

be used for basic (primary)

protection of power lines, transformers or motors, or for protection

of people from injury.

8. Setup procedures must be performed only by qualified personnel familiar with the instrument and its associated electrical equipment.

2

9. DO NOT attempt to open the instrument under any

circumstances.

10. Although designed to operate in an electrically noisy environment, the instrument should not be placed near very high

electric fields. In the event that the instrument is mounted in a harsh, noisy environment with high potential for electromagnetic impulses from heavy switch gears, motors or lightning, it is recommended to install appropriate protective devices such as lightening and over-voltage arresters to all incoming voltage inputs.

LIMITED WARRANTY

The manufacturer offers the customer a 24-month functional warranty on the instrument for faulty workmanship or parts from date of dispatch from the distributor. In all cases, this warranty is valid for 36 months from the date of production. This warranty is on a return to factory basis.

The manufacturer does not accept liability for any damage caused by instrument malfunction. The manufacturer accepts no responsibility for the suitability of the instrument to the application for which it was purchased.

Failure to install, setup or operate the instrument according to the instructions herein will void the warranty.

Your instrument may be opened only by a duly authorized representative of the manufacturer. The unit should only be opened in a fully anti-static environment. Failure to do so may damage the electronic components and will void the warranty.

NOTE

The greatest care has been taken to manufacture and calibrate your instrument. However, these instructions do not cover all possible contingencies that may arise during installation, operation or maintenance, and not all details and variations of this equipment are covered by these instructions.

For additional information regarding installation, operation or maintenance of this instrument, contact the manufacturer or your local representative or distributor.

BG0227 Rev. A2

3

Table of Contents

1 Measured Parameters and Outputs_________________4

2 Mechanical Installation___________________________5

3 Electrical Installation ____________________________7

3.1 Power Supply ________________________________7

3.2 Current Inputs________________________________7

3.3 Ground _____________________________________8

3.4 Voltage Inputs________________________________8

3.5 Relays ______________________________________12

3.6 Status Inputs_________________________________13

3.7 Analog Output _______________________________13

4 RDM Display ___________________________________14

5 Setup on the RDM _______________________________18

5.1 Basic Setup Parameters _______________________19

5.2 Communications Port Setup Parameters__________21

6 Communications ________________________________22

7 Troubleshooting ________________________________24

Appendix: Technical Specifications____________________27

Instrument Dimensions

4

1 Measured Parameters and Outputs

‘•’ = averages of 8, 16, or 32 real-time values; ’+’ = real-time values, 1 frequency cycle

Parameter

Communication

Display RDM

Analog Output

Pulsing Relay

Alarm/Control Relay

Voltages and Currents

Voltage (L-n/L-L) per phase

• + • • +

• +

Current per phase

• + • • +

• +

Neutral (unbalanced) current

• + • •

•

Powers

kW per phase

• + •

kvar per phase

• + •

kVA per phase

• + •

Power factor per phase

• + •

kW total

• + • • +

•

kvar total

• + • • +

•

kVA total

• + • • +

•

Power factor total

• + • • +

•

Frequency

• + • • +

•+

Demand

Ampere Demand per phase

•

Max. Amp. Demand per phase

• •

Accumulated kW Demand

•

Accumulated kVA Demand

•

kW Demand

•

KVA Demand

•

kW Sliding Demand

•

KVA Sliding Demand

•

kW Maximum Sliding Demand

• •

KVA Maximum Sliding Demand

• •

Energy

kWh Import per phase

• •

kvarh Import per phase

• •

kVAh Import per phase

• •

kWh Total Import / Export

• •

•

kvarh Total Import / Export

• •

•

kvarh Total Absolute

•

kVA Total

• •

•

kvarh net

•

Harmonic Distortion (RPT091H only)

Voltage THD per phase

• + •

+

Current THD per phase

• + •

+

Current TDD per phase

• + •

+

K- Factor per phase

• +

Status

Digital Input Status

• •

•

Relay Output Status

• •

Alarm Trigger Status

•

Phase Rotation

• •

•

Remote Control via Comm.

•

5

2 Mechanical Installation

Inspect the instrument for physical damage incurred in transit. If the instrument is damaged, inform your local distributor immediately.

Figure 2-1 RDM Cut-out Dimensions

--------------------------------------------------------------------------------------

Figure 2-2 RDM Panel Mounting

STEP 1: Insert RDM into cut-out.

6

STEP 4: Mount RPT on studs. STEP 5: Assemble 4 screws and washers. STEP 6: Fasten RPT to brackets; tighten nuts. STEP 7: Connect RDM to RPT via the 15-pin connectors

using cable supplied.

STEP 1: Insert RDM into cutout.

STEP 2: Mount brackets on studs.

STEP 3: Fasten brackets; do not tighten nuts.

Figure 2-3 Retrofit: Brackets Mounting

Figure 2-4 Retrofit:

RPT Mounting

7

3 Electrical Installation

3.1 Power Supply

The power source can be dedicated-fused, or from a monitored voltage if it is within the transducer power supply range.

AC power supply: line to terminal 12; neutral to terminal 10. DC power supply: positive to terminal 12; negative to terminal 10.

Figure 3-1 Locations of Terminals: Front View

NOTE: Power source connection requires use of the suppression core

provided with the instrument.

IMPORTANT: It is recommended to solder the wire ends

before attaching them to the connectors.

3.2 Current Inputs

To ensure accurate readings, the input current should not exceed

1.2A RMS and 1.76A amplitude for the 1A CT secondary, or 6A RMS and 8.8A amplitude for the 5A CT secondary.

8

If copper wiring is used, its thickness should be 2.5 - 4 mm

2

(13 -

11 AWG).

3.3 Ground

Connect the chassis ground of the RPT091 to the switchgear earth ground using dedicated wire greater than 2 mm

2

/14 AWG.

3.4 Voltage Inputs

Input of 690V (Standard): To ensure accurate readings, the measured voltage between terminals 2-5, 5-8 and 8-2 should not exceed 790V AC RMS, and the measured voltage between terminals 2-11, 5-11 and 8-11 should not exceed 460V AC RMS and 695V amplitude. Use any of the seven wiring configurations shown in Figures 3-2 through 3-8.

Input of 120V (Option U): To ensure accurate readings, the measured voltage between terminals 2-5, 5-8, 8-2, 2-11, 5-11 and 8-11 should not exceed 144V AC RMS and 225V amplitude. 120V input usually implies use of a potential transformer (PT). The PT requires use of any of the four wiring configurations shown in Figures 3-4 through 3-7.

Wiring Configurations ‘Wiring Mode‘ Definition

(See parameter setup instructions in Section 5)

3-wire direct connection using 2 CTs (2-element)

3dir2 (Figure 3-2)

4-wire WYE direct connection using 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 3-3)

4-wire WYE connection using 3 PTs, 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 3-4)

3-wire open delta connection using 2 PTs, 2 CTs (2-element)

3OP2 (Figure 3-5)

4-wire WYE connection using 2 PTs, 3 CTs (2½ -element)

3Ln3 or 3LL3 (Figure 3-6)

3-wire open delta connection using 2 PTs, 3 CTs (2½element)

3OP3 (Figure 3-7)

4-wire delta direct connection using 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 3-8)

9

LINE

I

+

K

+

K

-

L

-

L

1(A)

2(B)

3(C)

Shorting Switches

+

1197

6

431

1210

8

5

2

V

1

V

2

V

N

V

3

1

3

Currents Voltages

LOAD

Figure 3-2 Three Wire Direct Connection Using 2 CTs (2-element) Wiring Mode = 3dir2

LINE

I

+

-

K

+

K

-

L

-

L

1(A)

2(B)

3(C )

Shorting Switches

+

11976431

1210

8

5

2

V

1

V

2

V

N

V

3

1

2

3

Currents Voltages

LOAD

Figure 3-3 Four Wire WYE Direct Connection using 3 CTs (3-element) Wiring Mode = 4LL3 or 4Ln3

10

LINE

+

-

K

+

K

-

L

-

L

1(A)

2(B)

3(C)

Shorting Switches

+

1197643112

V

VVV

1

2

3

Currents Voltages

LOAD

N

LINE

+

-

K

+

K

-

L

-

L

1(A)

2(B)

3(C)

Shorting Switches

+

10

8

5

2

V

I

V

Currents Voltages

LOAD

Figure 3-4 Four Wire Wye Connection Using 3 PTs,3 CTs (3-element) Wiring Mode = 4LL3 or 4Ln3

LINE

+

K

I

+

K

-

L

-

L

1(A)

2(B)

3(C)

Shorting Switches

+

11

9

76431

1210

8

5

2

V

1

V

2

V

N

V

3

1

2

3

Currents Vo ltages

LOA D

Figure 3-5

Three Wire Open Delta Connection Using 2 PTs, 2 CTs (2-element) Wiring Mode = 3OP2

11

LINE

+

-

K

+

K

-

L

-

--

L

1(A)

2(B)

3(C)

Shorting Switche s

+

11976431

1210

8

5

2

V

1

V

2

V

N

V

3

1

2

3

Currents Voltages

LOAD

I

Figure 3-6 Four Wire Wye Connection Using 2 PTs, 3 CTs (2 ½-element) Wiring Mode = 3LL3 or 3Ln3

[Note: Use this configuration only if voltages are balanced]

LINE

+

-

K

+

K

-

L

-

L

1(A)

2(B)

3(C)

Shorting Switche s

+

11976431

1210

8

5

2

V

1

V

2

V

N

V

3

1

2

3

Currents Voltages

LOAD

+++

+

-

I

Figure 3-7 Three Wire Open Delta Connection Using 2 PTs, 3 CT (2½-element) Wiring Mode = 3OP3

12

2. Line to line voltages: 240V; 240V; 240V.

VOLTAGES DISPLAYED:

N

2

4

0

V

(A)

*

L

120V

L

*

(C)

2

4

0

V

120V

208V

L

*

(B)

delta connectio n

Power Transformer

N

LINE

208VAC

240 V AC

240VAC

N

L

3

*

120VAC

N

L

3

(C)

120VAC

240VAC

2

L

1

(A)

2

L

(B)

1

L

+

-

K

+

K

-

L

LOA D

-

L

c98-10008

1(A )

2(B )

3(C)

Shorting Switches

+

11976431

1210

8

5

2

V

1V2

V

I

II

N

V

3

1

2

3

Currents Voltages

Figure 3-8 Four Wire Delta Direct Connection Using 3 CTs (3 element) Wiring Mode = 4LL3 or 4Ln3

____________________________________________________________

3.5 Relays

Two relays are provided for energy pulsing, alarms or remote control.

Figure 3-9 Relay Output Terminal

13

3.6 Status Inputs

Figure 3-10 Status Inputs Connections

3.7 Analog Output

The RPT091 provides one optically isolated analog output with an internal power supply and current output options of 0-20 mA, 4-20

mA, 0-1 mA and ±1 mA.

Figure 3-11 Analog Output

Stabilization of the analog output after an input change takes up to 250 ms for real time data, and 1 to 6 sec for average data, depending on how the buffer is defined in the setup (see Section

5.1, Basic Setup).

One or two AX-7 analog expanders, DIN-rail mounted and connected via an RS-422 line, can be used for extension of the internal analog output.

Four status inputs are provided for status monitoring, external synchronization input for power demand period, o

r

output selector for multiplexed analog output.

14

4 RDM Display

Upon power up, the RDM assumes the display mode. Displayed parameters are divided into 4 groups. Each group is accessible by pressing the appropriate key, as follows:

Measurement Group: To Display Parameters:

Common default - Press the key that has an

illuminated arrow LED pointing to it (below the lower window). If no LED is lit up, this means that the RDM is displaying the common measurements parameters.

Maximum demands

press MAX. DEMAND key

Harmonic *

press THD/TDD key (RPT091H only)

Energy

press ENERGY key

* Only the RPT091H provides harmonic measurements. The

RDM is the same for both the RPT091 and the RPT091H. In the case of the RPT091, the THD/TDD key is not used.

[Press both arrows simultaneously to return to page 1of the display]

Scrolls display pages back

Scrolls display pages forward

Quits display mode and enters setup mode

Window 1

Window 3

Window 2

15

Table 4-1 Displayed Parameters

Page Window LED 4 Parameter c Digits Unit d

Common Measurements

1 1

V1/V1-2

Voltage L1/L12 4 V/kV

1 2

V2/V2-3

Voltage L2/L23 4 V/kV

1 3

V3/V3-1

Voltage L3/L31 4 V/kV

2 1

A1

Current L1 4 A/kA

2 2

A2

Current L2 4 A/kA

2 3

A3

Current L3 4 A/kA

3 1

kVA

Total kVA 4 kVA/MVA

3 2

PF

Total power factor 4

3 3

kW

Total kW 4 kW/MW

4 1

A NEUT

Neutral current 4 A/kA

4 2

Hz

Frequency 4 Hz

4 3

kvar

Total kvar 4 kvar/Mvar

5 1

Ph.L1

Label

5 2

PF

Power factor L1 4

5 3

kW

kW L1 4 kW/MW

6 1

kVA

kVA L1 4 kVA/MVA

6 2

Ph.L1

Label

6 3

kvar

kvar L1 4 kvar/Mvar

7 1

Ph.L2

Label

7 2

PF

Power factor L2 4

7 3

kW

kW L2 4 kW/MW

8 1

kVA kVA L2

4 kVA/MVA

8 2

Ph.L2

Label

8 3

kvar kvar L2

4 kvar/Mvar

9 1

Ph.L3

Label

9 2

PF

Power factor L3 4

9 3

kW

kW L3 4 kW/MW

10 1

kVA kVA L3

4 kVA/MVA

10 2

Ph.L3

Label

10 3

kvar kvar L3

4 kvar/Mvar

11 1

PHAS.

Label

11 2

rOt.

Label

11 3

Phase rotation(POS/NEG/ERR) 4

12 1

StAt.

Label

12 3

Status inputs #1-#4 4

13 1

rEL.

Label

13 3

Relay status #1-#2

4

16

Page Window LED 4 Parameter c Digits Unit d

Maximum Demands

MAX. DEMAND

1 1

A1

Maximum ampere demand L1 4 A/kA

1 2

A2

Maximum ampere demand L2 4 A/kA

1 3

A3

Maximum ampere demand L3 4 A/kA

2 1

kVA

Max. sliding window kVA demand 4 kVA/MVA

2 3

kW

Max. sliding window kW demand 4 kW/MW

Harmonic Measurements

THD

1 1

V1/V1-2

Voltage THD L1/L12 4 %

1 2

V2/V2-3

Voltage THD L2/L23 4 %

1 3

V3/V3-1

Voltage THD L3 4 %

2 1

A1

Current THD L1 4 %

2 2

A2

Current THD L2 4 %

2 3

A3

Current THD L3 4 %

TDD

3 1

A1

Current TDD L1 4 %

3 2

A2

Current TDD L2 4 %

3 3

A3

Current TDD L3 4 %

Total Energies

1 1

MWh Ac.En.

Label

1 2

IP.

Label

1 3

MWh import 6 MWh

2 1

Mvarh rE.En.

Label

2 2

IP.

Label

2 3

Mvarh import 6 Mvarh

3 1

MVAh AP.En.

Label

3 3

MVAh 6 MVAh

4 1

MWh Ac.En.

Label

4 2

EP.

Label

4 3

MWh export 6 MWh

5 1

Mvarh rE.En.

Label

5 2

EP.

Label

5 3

Mvarh export 6 Mvarh

Phase Energies (if enabled in the BASIC SETUP configuration)

6 1

MWh Ac.En.

Label

6 2

IP.L1

Label

6 3 MWh import L1 6 MWh

7 1

Mvarh rE.En.

Label

7 2

IP.L1

Label

7 3 Mvarh import L1 6 Mvarh

8 1

MVAh AP.En.

Label

8 2

L1

Label

8 3 MVAh L1

6 MVAh

17

Page Window LED 4 Parameter c Digits Unit d

9 1

MWh Ac.En.

Label

9 2

IP.L2

Label

9 3 MWh import L2 6 MWh

10 1

Mvarh rE.En.

Label

10 2

IP.L2

Label

10 3 Mvarh import L2 6 Mvarh

11 1

MVAh AP.En.

Label

11 2

L2

Label

11 3 MVAh L2 6 MVAh

12 1

MWh Ac.En.

Label

12 2

IP.L3

Label

12 3 MWh import L3 6 MWh

13 1

Mvarh rE.En.

Label

13 2

IP.L3

Label

13 3 Mvarh import L3 6 Mvarh

14 1

MVAh AP.En.

Label

14 2

L3

Label

14 3 MVAh L3 6 MVAh

c Display readings for all electrical quantities are sliding average values. d Voltage and current readings with a decimal point are displayed in kV and

kA. Power readings with a decimal point are displayed in MW, Mvar, and MVA. When the value is wider than the window, the right-most digits are truncated.

e The maximum range for energy readings is 999,999,999 kWh/kvarh/kVAh.

Beyond this value, the reading will roll over to zero. Negative (exported) energy readings are displayed without a sign.

18

5 Setup on the RDM

Setup can be performed via the RDM or PComTest software. PComTest is supplied on a disk which includes setup

instructions

1

.

The functions of the RDM keys in the setup mode are shown below:

Figure 5-1 RDM Panel - Setup Mode

Setup Procedure

1. Press

SELECT to enter setup mode.

2a. Press

SELECT again to go to SEE (for viewing only), or

2b. Press SELECT again to go to CHG (for editing setup)

3. Press

ENTER. If a password is required, use ▲ ▼ to input the

first digit and press

SELECT to advance to next digit. After all

4 digits are input, press

ENTER.

4. Press

SELECT to choose the menu; press ENTER.

1

All parameters may be set up via either the RDM or PComTest. It is

recommended to use the RDM for Basic and Communications parameters setup, and to use PComTest for setup of all other menus.

Menu

Parameter

Parameter value

To enter a menu/store a value

To move between windows

To return to previous level or quit without saving changes

To scroll through parameter

19

5. Press SELECT to activate the middle window; use ▲ ▼ to

choose the parameter; press

ENTER.

6. Press

SELECT to activate the lower window; use ▲ ▼ to

choose the value; press

ENTER (or press ESC to leave value

unchanged).

Menus

Code Full Name Code Full Name

bASc Basic - see Section 5.1 PulS Pulsing Relay *

Port Communications Port -

see Section 4.2

SetP

rtc

Alarm Setpoints *

Real time Clock*

dinP Digital (Status) Inputs * disp Display*

Aout Analog Output * rSt Reset enable/disable *

AEPn Analog Expander * AccS Password enable/disable *

* For full setup instructions for these parameters, see the complete

RPT091 Installation and Operation Manual.

5.1 Basic Setup Parameters

Options / Code Parameter Value Range Description

ConF Wiring Mode 3OP2 3-wire open delta using 2 CTs (2

element)

Default =

3OP3

4Ln3

3dir2

4LL3

3Ln3

3LL3

3-wire open delta using 3 CTs (2½ element)

4-wire Wye using 3 PTs (3 element), line to neutral voltage readings 3-wire direct connection using 2 CTs (2 element) 4-wire Wye using 3 PTs (3 element), line to line voltage readings 4-wire Wye using 2 PTs (2 ½ element), line to neutral voltage readings 4-wire Wye using 2 PTs (2 ½ element), line to line voltage readings

Pt PT Ratio 1.0 to

6500.0

The phase potential transformer ratio. If direct connection, set PT to 1; otherwise, PT= primary voltage/ secondary voltage

Default = 1

20

Options / Code Parameter Value Range Description

Ct CT Primary

Current

1 to 50000 The primary current rating of the

phase current transformer, in A

Default = 5

d.P Demand

Period

1,2,5,10, 15,20, 30,60,E

The length of the demand period for power demand calculations, minutes. E = external synchronization

Default = 15 min

n.dp Number of

Demand Periods

1-15 The number of demand periods to be

averaged for sliding window demands.

Default = 1 = block interval demand calculation

A.dP Ampere

Demand Period

0 to 1800 The length of the demand period for

ampere demand calculations, in seconds. 0 = measuring peak currents

Default = 900 sec

buF Averaging

Buffer Size

8,16,32 The number of measurements for

RMS sliding averaging. Default = 8

rSt RESET

enable/disabl e

diS, En Protects all reset functions either via

the RDM or communications. When set to diS, these functions are disabled. Default = En

Freq Nominal

Frequency

50, 60 The nominal frequency of the

monitored electrical network, in Hz.

Default = 50 Hz NOTE: When measured voltages exist, the nominal frequency is the measured frequency. This parameter is used when measuring currents in the absence of voltages.

LoAd Maximum

Demand Load Current

1-50,000 The maximum demand load current

used in TDD calculations, in A. If

value is unknown, set to CT Primary

Current value.

Default = 5000

Ph.En Phase Energy

Measurement

dis, En Enables/disables measurements of

energies per phase. Default = En

21

5.2 Communications Port Setup Parameters

Options / Code Parameter Value Range Description

Prot Communications

Protocol *

ASCII rtu

dnP3

ASCII protocol

= Default

non-ASCII protocol

rS Interface

Standard

422 485

RS-422 (4 wires) RS-485 (2 wires)

=Default

Addr Address 0-255 Powermeter address:

1-99: ASCII; 1-247: Modbus 255: DNP 3.0, SPA

Default = 1

bAud Baud Rate 110, 300, 110 baud, 300 baud, 600, 1200, 600 baud, 1200 baud, 2400, 4800, 2400 baud, 4800 baud, 9600, 19.2 9600 baud = Default,

19200 baud

dAtA Data Format 7E 7 bits, even parity 8n 8 bits, no parity = Default 8E 8 bits, even parity

* The communications protocol is selected by a short between

terminals 13 and 14 on the RPT091 (see Section 6). The protocol may be modified after a cold restart of the RPT091.

22

6 Communications

Figure 6-1 Terminal Block - ASCII

--------------------------------------------------------------------------------

Figure 6-2 Terminal Block - Non-ASCII

Both the RS-422 and RS-485 standards enable connection of up to 32 instruments on one multi-drop line for a distance of up to 1200 meters.

The RPT091 provides two green LED indicators TXD and RXD, which show activity on the RS-422/RS-485 communication port. The TXD indicator flashes when the instrument sends out data. The RXD indicator flashes when the instrument receives data.

Figures 6-3 through 6-6 illustrate all RS-422 and RS-485 cable configurations and wiring connections.

A full description of the communications software is found in the RPT091 Communications Manual.

NOTE

Where an RS-232/RS-422 converter is used, R1 is not applicable (see Figures 6-3 and 6-4) since it is built in to the converter.

+TX Transmit Data Plus +RX Receive Data Plus

-TX Transmit Data Minus

-RX Receive Data Minus

PROT Communication Protocol

23

#1

#32

Tx

Tx-

Rx

Rx-

#2

2

15

16

17

14

4

5

3

Shield

POWERMETERS

IBM PC/COMPATIBLE

RS-422/RS-485

R1

R1, R2: 200 - 500 Ohm

RxD

RT S

RxD-

RT S-

TxD

CTS

TxD-

CTS-

R2

OR RS-232/RS-422 CONVERTER

25 PIN DB25 FEMALE CONNECTOR

Figure 6-3 RS-422 Multidrop

Connection, 25-Pin PC Port

#32

Tx

Tx-

Rx

Rx-

#2

8

6

7

2

4

5

9

3

Shield

POWERMETERS

IBM PC/COMPATIBLE

RS-422/RS-485

R1

R1, R2: 200 - 500 Ohm

RxD

RTS

RxD-

RTS-

TxD

CTS

TxD-

CTS-

R2

9 P IN DB9 FEM ALE CONNE CT

O

Figure 6-4 RS-422 Multidrop

Connection, 9-Pin PC Port

#32

Tx

Tx-

Rx

Rx-

#2

2

15

16

17

14

4

5

3

Shield

POWERMETERS

IB M P C/ CO M PATI B LE

RS-422/RS-485

R1

R2

R1, R2: 200 - 500 Ohm

RxD

RT S

RxD-

RT S-

TxD

CTS

TxD-

CTS-

OR RS-232/RS-422 CONVERTER

25 PIN DB25 FEMALE CONNECTOR

Figure 6-5 RS-485 Multidrop

Connection, 25-Pin PC Port

#32

Tx

Tx-

Rx

Rx-

#2

Shield

POWERMETERS

IBM P

C

/COMPATIBLE

RS-422/RS-485

R1

R2

R1, R2: 200 - 500 Ohm

RxD

RT S

RxD-

RT S-

TxD

CTS

TxD-

CTS-

OR RS-232/ RS-422 CONVERTER

25 PIN DB25 FEMALE CONNECTOR

8

6

7

2

4

5

9

3

Figure 6-6 RS-485 Multidrop

Connection, 9-Pin PC Port

Use a shielded, 0.33 mm2/22 AWG twisted pair cable for each communication link; terminate the ends of multi-drop line with 200-500 Ohm resistors. Connect the cable shield to the ground input.

24

7 Troubleshooting

Problem Probable Cause What to do

Code other than ‘8’on RDM panel LED

Self-diagnostic test negative result

Note the code and call your distributor

Power LED on RPT not lit

Insufficient power supply

Check voltage level on power supply inputs (10,12)

Display LED on RDM not lit

Faulty cable connection

Check RDM cable connections

Varying line-to-line voltages

Incorrect voltage inputs connections

Check voltage inputs connections

Non-positive phase rotation

1. Concrete load has negative sequence

2. Incorrect voltage inputs connections

3. One or two phase voltages not connected

Check voltage inputs connections

One or more phase currents not displayed

Incorrect current inputs connections

Check current inputs connections

Phase active powers or power factors unequal or values do not correspond to actual load

Incorrect voltage or current inputs connections

Check voltage and current inputs connections; check polarity of CT connections

Cannot proceed past the first RDM menu

Incorrect password Check that your

password is correct. If you cannot provide the correct password, call your distributor for instructions on overriding password protection.

RDM window continues to flash after pressing ENTER

Value has been entered incorrectly or is incompatible with other setup parameters.

Check that parameter definition is correct.

25

Problem Probable Cause What to do

Alarm setpoints or analog output channels disabled

Setup parameters that affect voltage/current/ power were changed

Define these setup parameters (wiring mode, PT ratio, CT primary current) prior to setting up alarm setpoints/analog channels.

Status inputs setup not accepted

1. The analog selector inputs and the external synchronization pulse input overlap.

2. Allocated inputs for the analog output selector are not contiguous and do not start from input #1.

Check that all inputs are allocated correctly

Cannot store pulsing output setup

1. You assigned a

parameter to a relay output with zero number of unit-hours per pulse

2. You selected an

output parameter already assigned to another relay output.

1. Check that no. unithours is within allowed range (1-

9999)

2. Check that output parameters are assigned correctly.

Cannot store setpoint setup

Setpoint action is directed to a relay already allocated for pulsing

Check definition of setpoint actions

Cannot enter reset menu

1. Reset function disabled

2. You are at SEE

level (viewing only)

1. Enable reset function in BASIC setup

2. Go to CHG (editing) level

No phase energy readings displayed

Phase energy not enabled in BASIC setup

Enable phase energy measurement

TXD LED flashes continuously after turning on instrument

Analog expander AX-7 outputs are allocated

If analog expander not used, analog outputs must be cancelled

26

Problem Probable Cause What to do

PCOMTEST program works continuously but TXD LED of PC COMPORT does not flash

1. PC COMPORT number is not correct

2. PC COMPORT setting uncorrected

3. PC COMPORT is damaged

Change COMPORT number (setup of PCOMTEST);

Check COMPORT card setting;

Change COMPORT card

Instrument RXD LED does not flash

Communication cable not connected properly

Check cable

Instrument TXD LED does not flash

Instrument COMPORT setting is not correct

Check that instrument & PC COMPORT settings match: RS Standard Address Data Format Baud rate Protocol name (ASCII or non-ASCII)

PC COMPORT RXD LED does not flash

Communication cable not connected properly

Check cable

Instrument does not respond more than 1% of sessions in the ASCII or nonASCII test

1. ON the

communication line there are a few instruments with the same address or instruments with address zero

2. Analog expander outputs are allocated on the one of the instruments

1. Check every instrument separately

2. Cancel the analog outputs if analog expander is not used

PCOMTEST receives reply from the instrument with an incorrect check sum

Problems with the communication lines

Check the communication line:

Wires must be more

than 0.33 mm

2

/ 22

AWG Grounded screen Terminated resistors Communication line Distance < 1200 m

27

Appendix: Technical Specifications

Input and Output Ratings

3 Galvanically Isolated Voltage inputs

120 V: INPUT USING PT (up to 120V+20% line-to-line

voltage) Burden: <0.15 VA

690 V: DIRECT INPUT (up to 690V +15% line-to-line

voltage) Burden: <0.5 VA INPUT USING PT - Burden: <0.15 VA

3 Galvanically Isolated Current inputs

1 A:

INPUT VIA CT with 1A secondary output Burden: <0.02 VA Overload withstand: 2A RMS continuous, 50A RMS for 1 second

5 A: INPUT VIA CT with 5A secondary output

Burden: <0.1 VA Overload withstand: 10A RMS continuous, 250A RMS for 1 second

Voltage and Current Input terminals

UL recognized Maximum wire section: 4 mm

2

(10 AWG)

Optically Isolated Communication Port

EIA RS-422 and RS-485 standards Maximum wire section: 2.5 mm

2

(12 AWG)

2 Relay Outputs Relay rated at 5A, 250 VAC/ 5A, 30 VDC

2 contacts (SPST Form A)

4 Optically Isolated Digital Inputs

Dry Contact

Optically Isolated Analog Output 4-20 mA default

0-20 mA (option)

±

1 mA (option)

Accuracy 0.5%, Non-linearity 0.2%

Load up to 510 Ohm for 20 mA Load up to 10kOhm for 1 mA

Display (optional)

3 high-brightness seven-segment digital LEDs

Power Supply

Galvanically isolated Power supply (factory set)

120&230 V AC and 110&220 V DC option 12 V DC option 24 V DC option 48 V DC

85 - 265V AC 50/60 Hz and 88 - 290V DC Burden 10 W

9.6 - 19 VDC 19 - 37 VDC 37 - 72 VDC

28

Environmental Conditions

Operating temperature

-20°C to +60°C (-4°F to +140°F)

Storage temperature

-25°C to +80°C (-13°F to +176°F)

Humidity 0 to 95% non-condensing

Construction

Instrument body Case enclosure: Aluminum, anodized

Dimension: 186x75x109 mm (7.33 x 2.95 x 4.30 “) Mounting: 35 mm DIN rail or wall mount or 4-inch

panel mount

Instrument weight 0.94 kg (2.1 lb.)

Display body Display body: plastic

Front Panel: plastic ABS/PC blend Dimension: 114.3x114.3x20.0 mm (4.5x4.5x .787”) Mounting: wall mount

Display weight 0.2 kg (0.44 lb.)

Standards Compliance

Standards

UL File # E129258 CE-EMC: 89/336/EEC as amended by 92/31/EEC and 93/68/EEC CE-SAFETY: 72/23/EEC as amended by 93/68/EEC and 93/465/EEC

Harmonized standards to which conformity is

declared: EN55011:1991; EN50082-1:1992; EN610101:1993; A2/1995 ANSI C37.90.1 1989 Surge Withstand Capability (SWC) ANSI C62.41 - 1991 Standard Surge EN50081-2 Generic Emission Standard - Industrial Environment EN50082-2 Generic Immunity Standard - Industrial Environment EN55022: 1994 Class A EN61000-4-2 ENV50140: 1983 ENV50204: 1995 (900MHz) ENV50141: 1993 EN61000-4-4:1995 EN61000-4-8: 1993

Measurement Specifications

Accuracy, % Range Display Resolution (%Rdg) d

Parameter Full Scale Rdg FS Conditions

@

range

Voltage

120V×PT

@ 120V

380V×PT

@ 660V

208V×PT

@ 120V

660V×PT

@ 660V

0.25 10% to 120% FS 0 to 999,000 V

1 V @ 1V to 9,999 V

≤0.1%

@

10,000 V to 999,000 V

Starting voltage 1.5% FS

Line current CT PRIMARY CURRENT 0.25 2% to 120% FS 0 to 60,000 A

1 A @ 1A to 9,999 A

≤0.1%

@

10,000 A to 60,000 A

Starting current 0.5% FS

Active power

0.36

×PT×CT @ 120V input

1.2

×PT×CT @ 690V input

0.5

|PF| ≥ 0.5 c

-2,000,000 to +2,000,000 kW

1 kW @ 1kW to 9,999 kW

≤0.1%

@

10 MW to 2,000 MW

Reactive power

0.36

×PT×CT @ 120V input

1.2

×PT×CT @ 690V input

0.5

|PF| ≤ 0.9 c

-2,000,000 to +2,000,000 kvar

1 kvar @ 1kvar to 9,999 kvar

≤0.1%

@

10 Mvar to 2,000 Mvar

Apparent power

0.36

×PT×CT @ 120V input

1.2

×PT×CT @ 690V input

0.5

|PF| ≥ 0.5 c

0 to 2,000,000 kVA

1 kVA @ 1kVA to 9,999 kVA

≤0.1%

@

10 MVA to 2,000 MVA

Power factor 1 1

|PF| ≥ 0.5

-0.999 to +1.000 0.001

Frequency 0.1 45.00 to 65.00 Hz 0.01 Hz

For Ln reading and for 3OP2/3OP3 wiring

modes

For LL reading except 3OP2/3OP3 wiring modes

or

Accuracy, % Range Display Resolution (%Rdg) d

Parameter Full Scale Rdg FS Conditions

@

range

Neutral (unbalanced)

current

CT PRIMARY CURRENT 0.5 2% to 120% FS 0 to 60,000 A

1 A @ 1A to 9,999 A

≤0.1%

@

10,000 A to 60,000 A

Ampere demand same as for current

kW demand (block & sliding) same as for kW

kVA demand (block & sliding ) same as for kVA

K-Factor 999.9 5

typical

1.0 to 999.9 0.1 (via communication)

Total harmonic distortion THD U (I), % U

1

(I1)

100

1.5

≥ 1% FS @ U(I) ≥ 10%

FSU (FSI)

0 to 100 0.1

Total Demand harmonic distortion

TDD (I), %

100

1.5

≥ 1% FS @ I ≥ 10% FSI

0 to 100 0.1

Active energy Import & Export

according to power accuracy

e

0 to 999,999 MWh

1 kWh @ 1 to 999999 kWh

10 kWh

@

1000 to 9,999 MWh

100 kWh

@

10 to 99.999 GWh

1MWh @ 100 to 999.9 GWh

Reactive energy Import & Export

according to power accuracy

e

0 to 999,999 Mvarh

1 kvarh @ 1 to 999999 kvarh

10 kvarh

@

1000 to 9,999 Mvarh

100 kvarh

@

10 to 99.999 Gvarh

1Mvarh @ 100 to 999.9 Gvarh

Accuracy, % Range Display Resolution (%Rdg) d

Parameter Full Scale Rdg FS Conditions

@

range

Apparent energy

according to power accuracy

e

0 to 999,999 MVAh

1 kVAh @ 1 to 999999 kVAh

10 kVAh

@

1000 to 9,999 MVAh

100 kVAh

@

10 to 99.999 GVAh

1MVAh @ 100 to 999.9 GVAh

PT = external potential transformer ratio CT, CT PRIMARY CURRENT = primary current rating of external current transformer FSU = full scale voltage FSI = full scale current U

1

= voltage fundamental I1 = current fundamental

c @ 10% to 120% of voltage FS and 2% to 120% of current FS d Higher resolution is achievable via communications

e Where the current is > 10% FS, the energy accuracy is better than 1.5% Rdg.

Additional Notes

1. Accuracy is expressed as ± (percentage of reading + percentage of full scale) ± 1 digit. This does not include inaccuracies introduced by the

user's potential and current transformers.

2. Specifications assume: voltage and current waveforms with THD

≤ 5% for kvar, kVA and PF; reference operating temperature: 20 - 26 °C.

3. Ordinary measurement error is considerably less than the specified accuracy which indicates maximum error.

Satec RPT091 Quick Manual

Specifications and Main Features

Frequently Asked Questions

User Manual