Satec PM171 User manual

Series PM171

Powermeters

Installation and Operation

Manual

i

LIMITED WARRANTY

The manufacturer offers the customer an 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, set up 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 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 the instructions 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.

3. Under no circumstances should the instrument be

connected to a power source if it is damaged.

ii

4. To prevent potential fire or shock hazard, do not

expose the instrument to rain or moisture.

5. Place the instrument away from heat, direct sunlight,

and high electric fields.

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. Setup procedures must be performed only by qualified

personnel familiar with the instrument and its associated

electrical equipment.

8. DO NOT open the instrument under any circumstances.

Modbus is a trademark of Modicon, Inc.

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.

BG0225 Rev. E

Applicable to firmware versions 3.04 (ASCII/Modbus), 3.14 (ASCII/DNP3.0) or later

Table of Contents

Quick Start ........................................................................ iv

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

1.1 About This Manual.............................................................. 1

1.2 About The PM171................................................................ 1

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

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

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

Chapter 3 Using The Menus........................................... 17

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

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

4.2 Communications Port Setup Menu ...................................22

4.3 Digital Inputs Setup Menu (PM171E)................................. 24

4.4 Pulse Counters Setup Menu (PM171E) ............................. 25

4.5 Analog Output Setup Menu................................................ 26

4.6 Analog Expander Setup Menu ........................................... 29

4.7 Pulsing Output Setup Menu (PM171E).............................. 30

4.8 Alarm/Event Setpoints Setup Menu................................... 31

4.9 Timers Setup Menu (PM171E)............................................ 37

4.10 RTC Setup Menu ................................................................. 38

4.11 Display Setup Menu............................................................ 39

4.12 Reset Menu.......................................................................... 40

4.13 User Selectable Options Menu .......................................... 41

4.14 Access Control Menu ......................................................... 43

Chapter 5 Data Display ................................................... 44

5.1 Navigating in the Display Mode......................................... 44

5.2 Data Display Formats ......................................................... 46

5.3 Self-Test Diagnostics Display............................................ 50

Chapter 6 Viewing Status Information........................... 51

6.1 The Status Information Menu............................................. 51

6.2 Status Display Formats...................................................... 51

Chapter 7 Communications............................................54

7.1 Using a Printer .................................................................... 54

7.2 Connections ........................................................................ 56

Appendix: Technical Specifications.............................. 59

Index.................................................................................. 64

iii

iv

Quick Start

TYPICAL INSTALLATION : Wiring Mode 4LL3

(see Section 2.2.4 for full instructions)

4

120V (OPT. U)

85-290VDC

for RS-485

JUMPERS

V

RS-485

PC +

-

N

11

V

3

8

V

2

5

CT MARKINGS

RS-485 DEVICES

+

Powermeter

-

2

S

UP TO 31

L

2

P

K

1

SP

1

00-05006

+RX+TX-TX -RXRTSCTSTXD RXD

+

23857

-

1413 15 1716

NOTE:

N

LINE AC

POWER SUPPLY

A44-20mA

Handle Only at

RS-232

Static-Safe

Workstations

Devices

Static-Sensitive

ATTENTION

N/-

RS-422/RS-485

L/+

-

(48) 36-72VDC

S/N

SW. VER

18-36VDC

10-16VDC

(24)

(12) LOW DC

INPUT

10W

ANALOG OUTPUT

0-20mA

+/-1mA

N

S

O

A1

A0

+

T

CT.

1A

I

P

CT.5A

-

10

12

9

L

7

I

3

62

I

5A

N

STATUS INPUT

18

V

1

2

1

2A

LINE 1(A)

LINE 3(C)

N

LINE 2(B)

29

A

NALOG OUTPUT

POWER SUPPLY

90-264VAC

50/60Hz STANDARD

2

-

1

+

2

+

CUS

NOM. VOLT. MEASUREMENT

690V

O

+

-

RELAYS

1

+

2

212019 22 23 262524 27 28

3

1

I

Shorting

Switches

250VAC,5A

OUTPUT

RELAY

K

L

KL

L

LOAD

SETUP (see Chapter 4 for full instructions)

Setups can be performed directly on the front panel or via

PComTest/PAS295 communication software - see Chapter 4 for details.

Performing Basic and Communications Setup

Press CH

G



SELECT ENTER

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

SELECT

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

SELECT

Press to save selected value.

Basic and Communications Setup Options (∗ default setting)

Code Parameter Options Description

ConF Wiring mode 3OP2 3-wire open delta using 2 CTs

4Ln3

∗

4-wire Wye using 3 PTs

3dir2 3-wire direct connection using 2 CTs

4LL3 4-wire Wye using 3 PTs

3OP3 3-wire open delta using 3 CTs

3Ln3 4-wire Wye using 2 PTs

3LL3 4-wire Wye using 2 PTs

Pt PT ratio 1.0∗ - 6,500.0 Phase potential transformer ratio

Ct CT primary current 1-50,000A

(5∗) Primary rating of the phase current

transformer

d.P Power demand

period 1, 2, 5, 10, 15*,

20, 30, 60, E Length of demand period for power

demand calculations, in minutes.

E = external synch.

n.dp Number of power

demand periods 1-15

(1*) No. of demand periods to be averaged

for sliding window demands. 1 = block

interval

A.dP Ampere/Volt

demand period 0-1800 s

(900*) Length of demand period for

volt/ampere demand calculations.

0 = measuring peak current

buF Buffer size 8∗,16,32 No. of measurements for RMS sliding

averaging

Freq Nominal frequency 50, 60 Hz

(25 Hz option) Nominal power utility frequency

LoAd Maximum demand

load current 1-50,000A

(0∗) Maximum demand load current used in

TDD calculations 0 = CT primary

current

rSt Reset diS, En ∗ Protects all reset functions if disabled

Prot Communications

protocol ASCII∗, rtu,

dnP3, Prnt ASCII, Modbus RTU or DNP3.0

protocol, or printer mode

rS Interface standard 232*, 422, 485 RS-232 or RS-422 or RS-485 interface

Addr Address ASCII: 0∗-99, Modbus: 1∗-247, DNP3.0: 0∗-255

bAud Baud rate 110, 300, 600, 1200, 2400, 4800, 9600*, 19200 bps

ENTER

bASc

4L-n

ConF Port

ASCII

Prot

men

u

option

value

v

Code Parameter Options Description

dAtA Data format 7E , 8E (7/8 bits, even parity), 8n* (8 bits, no parity)

H.Sh Incoming flow

control

(handshaking)

nonE*

SOFt

Hard

No handshaking

Software handshaking (XON/XOFF

protocol)

Hardware handshaking (CTS protocol)

Ctrl Outgoing flow

control (RTS/DTR) nonE*

dtr

rtS

RTS signal not used

RTS permanently asserted (DTR

mode)

RTS asserted during transmission

Prn.P Printout period 1*,2,5,10,15,20,

30,60 minutes Time interval between successive

printouts

vi

Chapter 1 Introduction

1.

1.1 About This Manual

This manual is intended for the user of the PM171 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 PM171.

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 and instructions for printing electrical

parameter readings.

Chapter 8 contains Technical Specifications for the PM171.

1.2 About The PM171

The PM171 is a compact three-phase AC Powermeter, specially

designed to meet the requirements of users ranging from electrical

panel builders to substation operators. The PM171 is available in

two models: the PM171P for basic power measurements, and the

PM171E which adds energy measurements. Both are suitable for

both 4-inch round and 92x92mm square cut-outs.

Features

Display: The front panel features bright LED displays (6-digit

energy counters, up to 39 pages), a bar graph showing percent

load (CT Primary Current) and communications receive/transmit

(RXD/TXD) LEDs. The PM171E also features an energy pulsing

LED.

Chapter 1 Introduction 1

Chapter 1 Introduction

2

Setup is menu driven, with optional password protection.

Communication is available with RS-232/ RS-422/ RS-485

standards, with ASCII/Modbus or ASCII/DNP3.0 protocols. 120

assignable registers allow the user to re-map either register

address accessible in the instrument to the user assignable

register area in the address range of 0 to 119.

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

remote control.

Two optically isolated status inputs are provided for status

monitoring with date stamp and external 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, ± 1 mA.

The TOU (Time of Use) system, with real time clock and non-

volatile memory, consists of:

• up to 7 TOU energy groups (registers), each of which can be

allocated to accumulate kWh (import and export), kvarh (import

and export), kVAh and energy from two external meters by 2

pulsing inputs

• up to 16 tariff energy counters per group

• up to 16 tariff maximum kW and kVA demand registers

• up to 16 daily profiles (e.g., 4 seasons, 4 daily profiles per

season)

• up to 8 daily start times

• 2 calendars

Event and data logging with real time clock and non-volatile

512K memory, for data storage in the following events:

• instrument switch on/off

• internal relays or switches monitored by instrument digital

inputs

• event/alarm setups operation

Each event record stores: date and time stamp, event name, log

value (after alarm setup operation) and effect (operation or

release).

Data logging is used for: load profile logging (at 5,15 or 30 minute

intervals), TOU energy counters logging and data logging after

alarm setup operation or new state of digital status input.

Chapter 1 Introduction 3

Calculation of memory size is according to the following:

Log name Number of bytes

in record Number of

daily/monthly

records

Number of

days/

months

Memory size

(bytes)

Event log 14 NR (up to 10)

daily

ND 14 * NR * ND

Load profile

log

NB= 4 * NP+8 NR =1440/TI -

daily

ND NB * NR * ND

TOU energy

log

NB= 4 * NP+8 NR = 1-

monthly

NM NB * NR * NM

Alarm data

log

NB= 4 * NP+8 NR (up to 5) -

daily

ND NB * NR * ND

Total

memory

524288

Where: NP= number parameter in a record (up to 16) and 8- number

byte for time and date stamp;

TI= time interval between two records, minutes.

Example: event log must store data up to 60 days (ND=60)

Load profile log- up to 60 days and every record consist of NP=5

parameters: voltages per phase, active and reactive powers

integrated TI=5 minutes),

Monthly TOU energy log- 60 months and every record consist of

NP=10 parameters - 4 energy tariffs and 4 TOU Maximum

Demand registers, Active and Reactive Energy registers),

Alarm Data log – 60 days, every record consist of NP=13

parameters – 3 voltages, 3 currents, active, reactive and apparent

powers, frequency, THD voltage of phases L1, L2 and L3.

Data logging requires the following memory:

Log name Number of

bytes in one

record

Number of

daily/monthly

records

Number of

days/

months

Memory

size, in

bytes

Event log 14 10 60 8400

Load profile log 4 * 5+8 =28 1440/5= 288 60 483840

TOU energy log 4 * 10+8 = 48 1 60 2880

Alarm data log 4 * 13+8 = 60 5 60 18000

Required memory 513120

Three user-selectable options are provided (see Section 4.12):

1) Power calculation mode (P.cAL)

2) Energy rollover value - PM171E only

This option specifies the point at which the energy value rolls

over to zero.

3) Phase energy calculations mode (Ph.En)

This option is used to enable or disable phase energy

calculations.

Chapter 1 Introduction

4

PM171 Dimensions

Figure 1-1 PM171 Dimensions

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

Outputs

Parameter Display Comm. Analog Pulse Alarm

Average Values # = setup via panel

$ = setup via PC

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 Total Active Power 3 3 #$ #$

Average Total Reactive Power 3 3 #$ #$

Average Total Apparent Power 3 3 #$ #$

Average Power Factor per phase 3 3

Average Total Power Factor 3 3 #$ #$

99-06020

Chapter 1 Introduction 5

Outputs

Parameter Display Comm. Analog Pulse Alarm

Average Frequency 3 3 #$ #$

Average Neutral Current 3 3 #$ #$

Voltage & Current unbalance 3

Amps & Volt Demand Parameters

Ampere & Volt Demand per phase 3 #$

Ampere Maximum Demand per phase 3 3

Voltage Maximum Demand per phase 3 3

Power Demand Parameters

Active Power Accumulated Demand 3 #$ #$

Apparent Power Accumulated Demand 3 #$ #$

Active Power Demand 3 #$

Active Power Sliding Demand 3 #$

Apparent Power Demand 3 #$

Apparent Power Sliding Demand 3 #$

Active Power Predicted Demand 3 #$

Apparent Power Predicted Demand 3 #$

Active Power Maximum Demand 3 3

Apparent Power Maximum 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 3 3 #$

Total Active Energy Export 3 3 #$

Total Reactive Energy Import 3 3 #$

Total Reactive Energy Export 3 3 #$

Total Reactive Energy net 3

Total Reactive Energy Absolute #$

Total Apparent Energy 3 3 #$

Energy TOU System

7 Energy registers 3

16 Tariffs for each energy register 3

Maximum TOU kW & kVA Demand 3

Harmonic Parameters (avg. & real time)

Voltage THD per phase (up to 40th) 3 3 #$

Current THD per phase (up to 40th) 3 3 #$

Current TDD per phase (up to 40th) 3 3 #$

K-factor per phase (up to 40th) 3 #$

Fundamental Frequency Values (H01) (real time)

Voltage & Current per phase 3

E

Chapter 1 Introduction

6

Outputs

Parameter Display Comm. Analog Pulse Alarm

kW, PF per phase 3 3

kvar, kVA per phase 3

Total kW, PF 3 3

Total kvar, kVA 3

Real-time Values

RT RMS Voltage per phase 3 #$ #$

RT RMS Current per phase 3 #$ #$

RT Active Power per phase 3

RT Reactive Power per phase 3

RT Apparent Power per phase 3

RT Total Active Power 3 #$

RT Total Reactive Power 3 #$

RT Total Apparent Power 3 #$

RT Power Factor per phase 3

RT Frequency 3 #$ #$

RT Neutral Current 3

RT Total Power Factor 3 #$

Min/Max Values Logging

Min/Max A, V, kW, kvar, kVA logging 3 3

Min/Max PF, Neutral current logging 3 3

Min/Max frequency logging 3 3

Phase Rotation 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 Status 3

Self-diagnostic Tests 3 3

E

available in the PM171E

E

Chapter 2 Installation

2.

2.1 Mechanical Installation

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

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

Module on cut-out

Chapter 2 Installation 7

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

Chapter 2 Installation

8

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

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

Chapter 2 Installation 9

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 PM171 are made via terminals located on the

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

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

10

2.2.2 Current Inputs

Copper wiring 2.5 - 4 mm2 (13 -11 AWG) should be used.

2.2.3 Ground

Connect the chassis ground of the PM171 to the switchgear earth

ground using dedicated wire greater than 2 mm2/14 AWG.

2.2.4 Voltage Inputs

Input of 690V (Standard): Use any of the seven wiring

configurations shown in Figures 2-7 through 2-13.

Input of 120V (Option U): 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 Configurations ‘Wiring Mode‘ Definition

(See parameter setup instructions in Section 4.2)

3-wire direct connection using 2

CTs (2-element)

3dir2 (Figure 2-7)

4-wire WYE direct connection

using 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 2-8)

4-wire WYE connection using 3

PTs, 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 2-9)

3-wire open delta connection

using 2 PTs, 2 CTs (2-element)

3OP2 (Figure 2-10)

4-wire WYE connection using 2

PTs, 3 CTs (2 ½ -element)

3Ln3 or 3LL3 (Figure 2-11)

3-wire open delta connection

using 2 PTs, 3 CTs (2½-

element)

3OP3 (Figure 2-12)

4-wire delta direct connection

using 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 2-13)

Chapter 2 Installation 11

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

Wiring Mode = 3dir2

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

Wiring Mode = 4LL3 or 4Ln3

Chapter 2 Installation

12

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Satec PM171 User manual

Satec PM171 User manual

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