PSL PQube 3 Series Manuale utente

PQube 3 RM8 Module User Guide v1.0.docx

Power Standards Lab, 980 Atlantic Ave, Alameda CA 94501, USA

Tel ++1-510-522-4400 Fax ++1-510-522-4455 www.powerstandards.com

PQube® 3 RM8 Module

User Guide

Revision 1.0

PQube® 3 RM8 Module User Guide

Page 2 of 13

If this equipment is used in a manner not specified by the manufacturer, the protection provided by

the equipment may be impaired. Installation, service, and maintenance of your PQube must only

be done by an expert for electrical installations.

reproduced, or translated to another language without the prior written consent of Power Sensors

Ltd. “PQube” is a registered trademark of Power Sensors Ltd. “Windows” “Excel”, and “PowerPoint”

are registered trademarks of Microsoft Corporation.

The information contained in this document is subject to change without notice.

PSL MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

USE.

PSL shall not be liable for errors contained herein or for incidental or consequential damages in

connection with the furnishing, performance, or use of this material. If you do not accept this

limitation on liability, please return the product to PSL prior to use.

Produced in the United States of America.

Symbol

Meaning

Caution. Consult this manual in all cases where this

symbol is marked, in order to find out the nature of

the potential hazards and any actions which have

to be taken to avoid them.

Caution. Risk of electric shock

Alternating current

Alternating current (a.c.) or direct current (d.c.)

Double or Reinforced insulation

Functional earth terminal not relied on for safety

WARNING: Death, serious injury, or fire hazard could result from improper connection or

operation of this instrument. Carefully read and understand manual before connecting this

instrument.

AVERTISSEMENT: Si l'instrument est mal connecté, la mort, des blessures graves, ou un

danger d'incendie peuvent s'en suivre. Lisez attentivement le manuel avant de connecter

l'instrument.

WARNUNG: Der falsche Anschluß dieses Gerätes kann Tod, schwere Verletzungen oder Feuer

verursachen. Bevor Sie dieses Instrument anschließen, müssen Sie die Anleitung lesen und

verstanden haben.

ADVERTENCIA: Una conexión incorrecta de este instrumento puede producir la muerte,

lesiones graves y riesgo de incendio. Lea y entienda el manual antes de conectar.

PQube® 3 RM8 Module User Guide

Page 3 of 13

Table of Contents

Introduction 4

What is the RM8 Module for the PQube® 3? ............................................................................... 4

Overview of Connections 5

Specifications 5

RM8 Module Installation 6

General Installation Procedures .................................................................................................. 6

Example Wiring Diagram 6

1. Install the RM8 module onto the DIN rail 6

2. Slide the PQube 3 and all modules together 6

3. Make all the voltage and current connections to the PQube 3 7

4. Install interposing relays to switch high-power loads 7

5. Connect RM8 relays to an external voltage source 8

6. Apply power to PQube 3 and verify meter readings 8

Disconnect mains prior to servicing ............................................................................................. 8

Define your 3-phase loads ........................................................................................................... 8

1. Select your PQube 3 model 8

2. Assign labels to each branch 9

Setting thresholds for each relay ............................................................................................... 10

1. Define threshold, hysteresis, and threshold polarity 10

2. Define latch setting and normal state 13

Additional PQube Information .................................................................................................. 13

PQube® 3 RM8 Module User Guide

Page 4 of 13

Introduction

What is the RM8 Module for the PQube® 3?

The RM8 Module is an optional expansion module for your PQube 3 Power Analysis System. It adds

8 programmable signal relay outputs to your PQube 3. These can be useful for load shedding, alarms,

and notifications to system operators.

Typical use case: Monitor branch circuits powering critical loads (CL). Upon a rise above preset

power thresholds or other alarm conditions, the RM8 Module turns off non-critical loads (NCL).

Features

• Each RM8 module can control up to 8 individual non-critical loads

• Monitors up to two branch circuits with the standard PQube 3, and up to four branch circuits with

the PQube 3e.

• For each relay, set trigger thresholds based on the power consumption on any given branch circuit.

IMPORTANT: the RM8 module contains 8 programmable signal relays. Do not attempt to use the

RM8 relays for directly switching power to loads greater than the rated value (2 Amps max at max

60VDC/30VAC). While LEDs and other low-voltage low-current loads can be switched directly with

the RM8, in the typical case RM8 are used to switch the coil of an interposing power relay that

controls power flow of the switched loads.

PQube® 3 RM8 Module User Guide

Page 5 of 13

Overview of Connections

From left to right: R1, R2, R3, R4

From left to right: R5, R6, R7, R8

Specifications

Relays

Number of relays :

8 (4 on top , 4 on bottom of module)

Type :

Latching relays

Rating :

2 Amps max at max 60VDC/30VAC

Operate time:

< 20ms

Trigger and functions

Default state :

User defined : Normally Closed (NC) or Normally Open (NO)

Operation:

Upon triggering (see below), the relay activates as long as the

triggering condition is maintained

Triggering functions:

Active Power (or apparent power) averaged over a period of 1

second. Assessment of the value over/under a configurable

threshold (in W or VA).

Module dimensions:

Height X Width X Depth

89.50mm (3.523”) X 36.32 (1.43”) X 78.24mm (3.08”)

Note: width including interface connector: 45.36 mm (1.786”)

Environment

-20°C ~ 65°C

PQube® 3 RM8 Module User Guide

Page 6 of 13

RM8 Module Installation

General Installation Procedures

Read all instructions before installation.

NOTE: it is very important that installation of your PQube 3 and associated modules such as the RM8 is

performed by qualified personnel in accordance with the local electrical guidelines and codes.

The instructions shown here are for the RM8 module only. Refer to the PQube 3 Instruction Manual for

wiring instructions for the PQube 3.

Example Wiring Diagram

1. Install the RM8 module onto the DIN rail

Snap the RM8 module onto the DIN rail, directly to the left of your PQube 3.

IMPORTANT: PQube 3 and modules must be installed onto the DIN rail separately.

2. Slide the PQube 3 and all modules together

After all modules have been installed onto the DIN rail, slide them together and install DIN rail

stoppers to prevent them from sliding apart after installation.

PQube® 3 RM8 Module User Guide

Page 7 of 13

3. Make all the voltage and current connections to the PQube 3

3-phase circuit #1, use I1, I2, I3 terminals

3-phase circuit #2, use I6, I7, I8 terminals

3-phase circuit #3, use I9, I10, I 11 terminals (PQube 3e only)

3-phase circuit #4, use I12, I13, I14 terminals (PQube 3e only)

The voltage must be common to all circuits.

4. Install interposing relays to switch high-power loads

All loads should be directly switched by a high power relay. Do NOT connect the RM8 relays directly

to loads.

PQube® 3 RM8 Module User Guide

Page 8 of 13

5. Connect RM8 relays to an external voltage source

The relays in your RM8 module are “dry” contacts. You must “wet” the contacts by applying voltage

from an external source. The RM8 relays are installed so as to switch the coil input of your high-

power interposing relay. Refer to the specifications of your high-power relay to determine the coil

voltage.

IMPORTANT: The RM8 relays are rated for 30VAC/60VDC and 2A. Take care not to exceed these

values.

6. Apply power to PQube 3 and verify meter readings

Apply power and your PQube 3 will begin booting up. You can access your PQube 3’s readings from

the built-in touchscreen display.

Verify that the meter readings on your PQube3 are consistent with voltage and currents measured,

and then secure the installation. If any corrections need to be made, safely disconnect the power

before servicing the connections.

This completes the installation process. All that remains, if not already completed, is the

configuration of your PQube 3 using the PQube 3 Configurator Program which can be found on the

USB drive included with your PQube 3. The latest Configurator Program can also be downloaded

from http://www.powerstandards.com/download-center/pqube-3-3e/

Disconnect mains prior to servicing

Always disconnect all mains connections, and verify disconnections, prior to servicing and

configuring your PQube 3 for use with the RM8 module.

Once your PQube 3 has been installed, you will need to configure it for use with the RM8 module.

For general device setup, refer to the PQube 3 Instruction Manual.

Define your 3-phase loads

1. Select your PQube 3 model

Open the PQube 3 Configurator and choose PQube 3 or PQube 3e.

PQube® 3 RM8 Module User Guide

Page 9 of 13

2. Assign labels to each branch

Go to Load(s) Definition page. Click the 3Ph buttons on the right to enable power calculations and

recording for that branch, then add a name for each branch circuit.

PQube® 3 RM8 Module User Guide

Page 10 of 13

Setting thresholds for each relay

1. Define threshold, hysteresis, and threshold polarity

Go to Relay output page, Relay extension (RM8) tab

For each relay (R1 through R8), define the circuit of interest, then set the threshold, hysteresis, and

threshold polarity (over-threshold or under-threshold).

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