Satec PM172-RDM172 User manual

Series PM172

Powermeters

Installation and

Operation Manual

i

LIMITED WARRANTY

The manufacturer offers the customer a 24-month functional warranty on

the instrument in respect of 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, set up or operate the instrument according to the

instructions herein will void the warranty.

Only a duly authorized representative of the manufacturer may open your

instrument. 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 all details and variations of this equipment are not

covered by these instructions.

For additional information regarding installation, operation or maintenance

of this instrument, contact the manufacturer or your local representative or

distributor.

IMPORTANT

Please read this instruction manual before installing the unit, 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.

ii

3. Do not connect the instrument to a power source if it is

damaged.

4. Do not expose the instrument to rain or moisture.

5. The secondary of an external current transformer must

never be allowed to be an 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.

6. Setup procedures must be performed only by qualified

personnel familiar with the instrument and its associated

electrical equipment.

7. DO NOT open the instrument under any circumstances.

 Read this manual thoroughly before connecting the meter

to the current carrying circuits. During operation of the

meter, hazardous voltages are present on input terminals.

Failure to observe precautions can result in serious or

even fatal injury or damage to equipment.

Modbus is a trademark of Modicon, Inc.

BG0270 Rev.D

iii

Table of Contents

Quick Start ......................................................................v

Chapter 1 Introduction..................................................1

1.1 About this Manual ............................................................ 1

1.2 About the PM172 ............................................................. 1

Chapter 2 Installation....................................................7

2.1 Mechanical Installation..................................................... 7

2.2 Electrical Installation ......................................................10

2.2.1 Power Source Connection .......................................................10

2.2.2 Current Inputs ..........................................................................11

2.2.3 Ground.....................................................................................11

2.2.4 Voltage Inputs..........................................................................11

2.2.5 Relays......................................................................................15

2.2.6 Status Inputs............................................................................15

2.2.7 Analog Output..........................................................................16

Chapter 3 Using the Menus........................................17

Chapter 4 Setup Menus...............................................19

4.1 Basic Setup Menu ..........................................................19

4.2 Communications Port Setup Menus ..............................21

4.3 Digital Inputs Setup Menu..............................................23

4.4 Pulse Counters Setup Menu ..........................................24

4.5 Analog Output Setup Menu............................................25

4.6 Analog Expander Setup Menu .......................................28

4.7 Pulsing Output Setup Menu ........................................... 29

4.8 Alarm/Event Setpoints Setup Menu ............................... 30

4.9 Timers Setup Menu........................................................ 36

4.10 RTC Setup Menu ...........................................................37

4.11 Display Setup Menu ....................................................... 38

4.12 User Selectable Options Menu ......................................39

4.13 Relay Operation Control Menu....................................... 41

4.14 Access Control Menu .....................................................42

4.15 Reset Menu.................................................................... 43

Chapter 5 Data Display ...............................................45

5.1 Navigating in the Display Mode...................................... 45

5.2 Data Display Formats.....................................................47

5.3 Self-Test Diagnostics Display ........................................ 52

Chapter 6 Viewing Status Information.......................53

6.1 The Status Information Menu.........................................53

6.2 Status Display Formats ..................................................54

Chapter 7 Communications........................................56

iv

7.1 Connection Diagrams.....................................................56

7.1.1 COM1 Connections..................................................................56

7.1.2 COM2 Port Connections ..........................................................58

7.2 Using a Printer................................................................ 59

7.2.1 Configuring the COM1 Port for Printer .....................................59

7.2.2 Printout Format ........................................................................60

Appendix A Technical Specifications........................61

Appendix B Using Setpoints ......................................67

Appendix C Configuring TOU.....................................70

Appendix D Event and Data Logging ........................72

Appendix E Power Quality Setup...............................76

v

Quick Start

TYPICAL INSTALLATION

Wiring Mode 4LL3, RS-485 Connection

(See Sections 2.2.4 and 7.2 for complete set of diagrams)

ANALOG OUTPUT

23

RS-485

PC 1

+

-

METER

RS-485

UP TO 31

DEVICES

+

POWER- -

-TX

+TX

-RX +RX

9 678

9 6

V

54321

RS-422/485

N

51

11

RS-232

COM.1

3

V

8

V

2

5

2

V

1

12 +

STATUS INPUT -

1

1918 2120 22

2A

3(C)

N

LINE

LINE 2(B)

LINE 1(A)

RS-485

00-06011

POWER-

METER

-

PC 2

- +

+

UP TO 31

DEVICES

LINE AC

N

+

-

10

N/-

1713 14 15 16

RS-422/RS-485

+TX-RX-TX

12

+RX

L/+

COM.2

5A

L

3

I

9

-

7

+

N

I

6

-

2

4

+

3

I

-

1

+12

-

21

RELAYS

+

2624 25 2827 29

OUTPUT

250VAC,5A

RELAY

Shorting

Switches

K

LOAD

KL

L

K

vi

SETUP

Setups can be performed directly on the front panel or via PAS communication

software - see Chapter 4 for full instructions.

Performing Basic and Communications Setup

Press

Press to activate middle window; press ▲▼ to scroll to option.

Press to activate lower window; press ▲▼ to scroll to value.

Press to save selected value.

Basic and Communications Setup: Default Options

Code Parameter Default Description

ConF Wiring mode 4Ln3 4-wire Wye using 3 PTs

Pt PT ratio 1.0 Phase potential transformer primary to

secondary ratio

Ct CT primary current 5A Primary rating of the phase current

transformer

d.P Power demand period 15 min Length of demand period for power

demand calculations, in minutes.

E = external synchronization

n.dp Number of power

demand periods 1

No. of demand periods to be averaged for

sliding window demands. 1 = block interval

A.dP Ampere/Volt demand

period 900 s

Length of demand period for volt/ampere

demand calculations, in seconds

0 = measuring peak current

buF Buffer size 8 Number of measurements for RMS

averaging

Freq Nominal frequency 50/60 Hz Nominal power utility frequency

LoAd Maximum demand load

current 0

Maximum demand load current used in

TDD calculations: 0 = CT primary current

rSt Reset enabled En Enabled (disable to protect all reset

functions)

Prot Communications

protocol ASCII ASCII protocol

rS Interface standard 485 RS-485 interface

Addr Address 1 Device address

bAud Baud rate 9600 bps Baud rate

dAtA Data format 8n Data format (8 bits, no parity)

H.Sh Flow control

(handshaking) nonE No flow control

Ctrl RTS control nonE RTS is not used

CPtb ASCII compatibility

mode diS Disabled

bASc

4L-n

ConF

Prt.1

ASCII

Prot

menu

option

value

menu

option

value

SELECT CH

G

ENTER

 

SELECT

ENTER

Chapter 1 Introduction 1

Chapter 1 Introduction

1. Chapter 1 Introduction

1.1 About this Manual

This manual is intended for the user of the PM172 Powermeter. This

Powermeter is a microprocessor-based instrument used for the

measurement, monitoring, and management of electrical parameters.

This chapter gives an overview of this manual and an introduction to the

PM172.

Chapter 2, Installation, provides instructions for mechanical and electrical

installation.

Chapter 3, Using the Menus, presents the structure of menus for setup

and status viewing.

Chapter 4, Setup Menus, provides instructions for performing parameter

setup on the front panel.

Chapter 5, Data Display, guides you through the display pages.

Chapter 6, Viewing Status Information, tells you how to access additional

status information on the instrument. This information may be useful

during installation.

Chapter 7, Communications, provides drawings for communications

connections.

Appendix A contains the PM172 Technical Specifications.

Appendix B contains instructions on programming setpoints.

Appendix C provides information on configuring TOU registers.

Appendix D provides detail on Event and Data logging.

1.2 About the PM172

The PM172 is a compact three-phase AC Powermeter, specially designed

to meet the requirements of users ranging from electrical panel builders to

substation operators. The PM172 is available in two models: the PM172P

for basic power measurements, and the PM172E which adds energy

measurements and data recording. Both are suitable for 4-inch round and

92x92mm square cutouts.

The PM172 is an advanced microprocessor-based digital instrument that

incorporates the capabilities of a network analyzer, data recorder and

programmable controller. The instrument provides three-phase

measurements of electrical quantities in power distribution systems,

monitoring external events, operating external equipment via relay

contacts, fast and long-term on-board recording of measured quantities

and events.

2 Chapter 1 Introduction

Features

Local Display: The front panel features bright LED displays (three

windows, up to 49 pages, 6-digit energy counters) with adjustable update

time, a bar graph showing percent load with respect to user-definable

nominal load current, and two communications receive/transmit LEDs.

Display auto scroll is available on the main screen with a programmable

scroll interval of 2 to 15 seconds. Automatic return to the main screen is

available after 30 seconds of uninterrupted use.

The PM172E also features an energy pulsing LED.

AC Inputs: 3 voltage and 3 current galvanically isolated inputs for direct

connection to power line or via potential and current transformers.

Harmonic Measurements:

• Per phase voltage and current total harmonic distortion

• Per phase current total demand distortion

• Per phase K-Factor

Setup is menu driven, with optional password protection.

Two communication ports are available for RS-232/RS-485 and RS-

422/RS-485 standards, with ASCII, Modbus RTU and DNP3.0 protocols.

In ASCII and Modbus protocols, 120 assignable registers allow the user

to re-map any register address accessible in the instrument to the user

assignable register area. Changing setups and resetting accumulated

data through communications can be secured by the password.

Two relays are provided for energy pulsing (KYZ) or alarm and remote

control.

Two optically isolated status inputs are provided for status monitoring

with timestamp, for counting pulses and for external demand interval and

time synchronization.

Two optically isolated analog outputs with an internal power supply are

provided for remote monitoring or control. Current loop options are

0-20mA, 4-20mA, 0-1mA, ± 1mA.

Real Time Clock is provided for date and time stamp log and demand

interval synchronization. Standard or Daylight Savings Time (DST) with

automatic time adjustment is available. DST switch dates can be

configured for the use in different time zones.

The TOU (Time of Use) system:

• 7 configurable TOU energy registers for accumulating kWh

(import and export), kvarh (import and export), kVAh and energy from

two external meters through 2 pulsing inputs

• 3 configurable TOU Maximum Demand registers for recording

maximum kW (import and export), and kVA demands

• 16 tariffs

Chapter 1 Introduction 3

• 16 daily profiles (e.g., 4 seasons, 4 daily profiles per season)

• 8 daily tariff start times (tariff changes)

• 2-year calendar

• automatically configurable daily and monthly TOU profile log for

each allocated energy and maximum demand register using season

energy tariffs

A 0.5 Megabyte onboard non-volatile memory is provided in the PM172E

for data and event recording.

• Event recorder provides logging resets, device diagnostics and

setpoint operation events.

The event-driven Data recorder is provided for recording user-selectable

data in up to 8 data log files on a periodic basis or on any internal and

external trigger. It can be used for load profile and TOU energy profile

recording, or to log fault data on alarm conditions or digital input changes.

For more detailed information on event and data logging, see Appendix D.

User-selectable options are provided (see Section 4.11):

• Two power calculation modes

• Programmable energy rollover value (PM172E)

• Phase energy calculations option (PM172E)

4 Chapter 1 Introduction

PM172 Dimensions

Figure 1-1 PM172 Dimensions

SWITCHBOARD PANEL

(127.0)

5.000" MAX.

(127.0) MAX.

(20.0)

4.500"

5.000"

(127.0)

5.000"

(114.0)

4.500

0.787"

99-06020

Chapter 1 Introduction 5

Measured Parameters

NOTE: Real-time values are measured over 1 cycle of fundamental frequency; Average

values are of 8, 16 or 32 Real-time values. # = setup via panel, $ = setup via PC

Parameter Display Comm. Analo

g

Pulse Alarm

Average Values

Average RMS Voltage per phase 3 3 #$ #$

Average RMS Current per phase 3 3 #$ #$

Average Active Power per phase 3 3

Average Reactive Power per phase 3 3

Average Apparent Power per phase 3 3

Average Power Factor per phase 3 3

Average Total Active Power 3 3 #$ #$

Average Total Reactive Power 3 3 #$ #$

Average Total Apparent Power 3 3 #$ #$

Average Total Power Factor 3 3 #$ #$

Average Frequency 3 3 #$ #$

Average Neutral Current 3 3 #$ #$

Voltage & Current unbalance 3

Amps & Volt Demands

Ampere & Volt Demand per phase 3 #$

Maximum Ampere Demand per phase 3 3

Maximum Voltage Demand per phase 3 3

Power Demands

Active Power Accumulated Demand Imp & Exp 3 #$ #$

Reactive Power Accumulated Demand Imp & Exp 3 #$ #$

Apparent Power Accumulated Demand 3 #$ #$

Active Power Demand Import & Export 3 #$

Reactive Power Demand Import & Export 3 #$

Apparent Power Demand 3 #$

Active Power Sliding Demand Import & Export 3 #$

Reactive Power Sliding Demand Import & Export 3 #$

Apparent Power Sliding Demand 3 #$

Active Power Predicted Demand Import & Export 3 #$

Reactive Power Predicted Demand Imp & Exp 3 #$

Apparent Power Predicted Demand 3 #$

Maximum Active Power Demand Import 3 3

Maximum Active Power Demand Export 3

Maximum Reactive Power Demand Import 3

Maximum Reactive Power Demand Export 3

Maximum Apparent Power Demand 3 3

Energy per Phase

Active Energy Import per phase 3 3

Reactive Energy Import per phase 3 3

Apparent Energy per phase 3 3

Total Energy

Total Active Energy Import & Export 3 3 #$

Total Reactive Energy Import & Export 3 3 #$

Total Reactive Energy Net 3

E

6 Chapter 1 Introduction

Parameter Display Comm. Analo

g

Pulse Alarm

Total Apparent Energy 3 3 #$

TOU Registers

7 Energy registers 3 3

3 Maximum demand registers (selectable kW

import & export, kvar import & export, kVA

demands)

3

16 Tariffs for each TOU register 3

Total Harmonic Measurements

Voltage THD per phase 3 3 #$ #$

Current THD per phase 3 3 #$ #$

Current TDD per phase 3 3 #$ #$

K-factor per phase 3 #$ #$

Fundamental Values

Voltage and Current per phase 3

kW, PF per phase 3 3

kvar, KVA per phase 3

Total kW, PF 3 3

Total kvar, KVA 3

Real-time (RT) Values

RMS Voltage per phase 3 #$ #$

RMS Current per phase 3 #$ #$

Active Power per phase 3

Reactive Power per phase 3

Apparent Power per phase 3

Power Factor per phase 3

Total Active Power 3 #$

Total Reactive Power 3 #$

Total Apparent Power 3 #$

Total Power Factor 3 #$

Frequency

3 #$ #$

Neutral Current 3

Voltage & Current unbalance 3

Min/Max Logging

Min/Max A, V, total kW, kvar, kVA, PF 3 3

Min/Max Frequency, Neutral current 3 3

Phase Rotation 3 3 #$

Day and Time 3 3 #$

Pulse Counters 3 3 #$

Remote Relay Control 3

Inputs & Outputs Status

Digital Inputs Status 3 3 #$

Alarm Relay Status 3 3 #$

Alarm Trigger/Setpoint Status 3

Self-diagnostic Tests 3 3

- available in the PM172E

E

Chapter 2 Installation 7

Chapter 2 Installation

2. Chapter 2 Installation

2.1 Mechanical Installation

Figure 2-1 STEP 1 (4” round cut-out): Mount the Display Module on

cut-out

3.375"

HEX NUT #8-32

LOCK WASHER #8

FLAT WASHER #8 (WIDE)

DISPLAY

3.375"

0.198"

4.0"

SWITCHBOARD PANEL

STANDARD

4" ROUND

99-05013

Chapter 2 Installation

8

Figure 2-2 STEP 1 (92x92mm Square DIN cut-out): Mount the Display

Module on cut-out

Figure 2-3 STEP 2: Assemble the 4 Locating Studs

SWITCHBOARD PANEL

DIN43700

92x92mm

92.0mm

LOCK WASHER #8

FLAT WASHER #8 (WIDE)

HEX NUT #8-32

DISPLAY

99-05014

99-0501

5

SWITCHBOARD PANEL

LONG STUD

Chapter 2 Installation 9

99-05016

SLIDING DIRECTION

Figure 2-4 STEP 3: Slide and Position the Powermeter on Locating Studs

99-05017

THUMB NUT M4

LOCK WASHER M4

Figure

2-5 STEP 4: Affix the Powermeter Using the Thumb Nuts

Chapter 2 Installation

10

2.2 Electrical Installation

 Before installation ensure that all incoming power sources

are shut OFF. Failure to observe this practice can result in

serious or even fatal injury and damage to equipment.

Connections to the PM172 are made via terminals located on the rear

panel of the instrument as shown in Figure 2-6.

2

RELAYS

NOM. VOLT. MEASUREMENT

N/-

L/+

POWER SUPPLY

COMM. PROTOCOL

Devices

RS-422/485

Static-Safe

Workstations

Handle Only at

11

V

9

N

5

RS-232

COM.1

13 161514 17

-RX

RS-422/RS-485

-TX

6

13

1

+TX +RX

16 171514

COM.2

STATUS INPUT ANALOG OUTPUT

POWER SUPPLY

10-16VDC

18-36VDC

36-72VDC

ATTENTION

SW. VER

S/N

Static-Sensitive

(24)

5

V

8

3

(48)

2

V

2

1

50/60Hz

85-290VDC

(12)

90-264VAC

CT.

5A

I

1A CT.

ASCII & DNP3.0

ANALOG OUTPUT

ASCII & MODBUS

S

INPUT

N

O

120V (OPT. U)

690V

STANDARD

10W

LOW DC

P

T

O

R

12

18 19 20

2523

1

+-

2221

-

2

+

24 26127 28

26 27 28

10

00-06007

12

6

I

-

93

+

7

-

2

I

+

4

-

3

1

I

+

1

29

Figure 2-6 Terminals - Rear View

2.2.1 Power Source Connection

The power source can be dedicated-fused, or from a monitored voltage if

it is within the instrument’s 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.

Chapter 2 Installation 11

2.2.2 Current Inputs

To ensure accurate readings, the input current should not exceed 2A

RMS and 2.93A amplitude for the 1A CT secondary, or 10A RMS and

14.6A amplitude for the 5A CT secondary.

Copper wiring 2.5 – 3.5 mm2 (12 AWG) should be used.

2.2.3 Ground

Connect the chassis ground of the PM172 to the switchgear earth ground

using dedicated wire greater than 2 mm2/14 AWG.

2.2.4 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 2-7 through 2-13.

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 2-9 through 2-12.

Wiring Configuration

(See parameter setup instructions in Section 4.2) Setup Code Figure

3-wire direct connection using 2 CTs (2-element) 3dir2 2-7

4-wire WYE direct connection using 3 CTs (3-element) 4Ln3 or 4LL3 2-8

4-wire WYE connection using 3 PTs, 3 CTs (3-element) 4Ln3 or 4LL3 2-9

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

element) 3OP2 2-10

4-wire WYE connection using 2 PTs, 3 CTs (2½ -element) 3Ln3 or 3LL3 2-11

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

element) 3OP3 2-12

4-wire delta direct connection using 3 CTs (3-element) 4Ln3 or 4LL3 2-13

Chapter 2 Installation

12

Figure 2-7 Three Wire Direct Connection Using 2 CTs (2-element)

Wiring Mode = 3dir2

c99-05030

LINE 1 (A)

(C)

N

(B)

K

+

-

+

-

+

K

L

LOAD

-

L

KL

LINE 2

LINE 3

N

V

3

V

2

V

1

Shorting

Switches

Voltages

1

7

10

12

+

9

4

6

+

3

-

Currents

Figure 2-8 Four Wire WYE Direct Connection Using 3 CTs (3-element)

Wiring Mode = 4LL3 or 4Ln3

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Satec PM172-RDM172 User manual

Satec PM172-RDM172 User manual

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