Efficient Power Control for Electrical Heating Applications

Designed for fast integration and optimum efficiency

Description

OEMs and system integrators need to be able to react quickly to customer

needs while maximizing resources. Whether replacing an existing product

or designing a new process, the design of the EPack™ SCR

(Silicon Controlled Rectifier) power controller has been carefully considered

for fast and easy panel installation, commissioning and integration into wider

systems, lowering equipment costs, and manufacturing times for you and

your customers.

End Users continually need to improve operational efficiency and productivity.

EPack power controller range can deliver real savings, significantly reducing

your energy costs. Get the best from your operations; quick and easy to install,

integrate and commission. A compact size doesn’t compromise powerful and

versatile features that minimize costs and improve productivity and quality.

EPack 3-PH power controller is the ideal solution for the control of all kinds of

loads. The control of each phase ensures accurate control, even if the loads

are unbalanced). The currents and voltage measures also allow a high level

of diagnostics, which can be used for alarm management as well as monitoring

(impedance, energy counter, reactive power).

EPack 2-PH controller is the latest generation of power controllers designed to

be a cost effective solution for the control of 3 phase loads. The 2 leg control

is particularly adapted to the control of balanced loads, directly, or through

transformers. Burst firing avoids generation of harmonics and reduces the

consumption of reactive power.

EPack 1-PH SCR controllers are designed to carry currents from 1 to 125 amps,

with operating voltage between 100 and 500 Volts

The scalability and configurability of EPack power controller range fits with the

requirements of each application. A wide range of alarms can quickly identify a

controller detected fault which reduces downtime.

Description

The end user, the machine builder or the system integrator expects the best

solutions in terms of performance, ease of use and reliability in order to control

the energy delivered to their process.

Whether replacing an existing product or building a new process, the EPack Lite

SCR (Silicon Controlled Rectifier) power controller has been carefully designed to

aid easy and fast integration in industrial systems.

The EPack Lite controller range offers a simplified choice, fast commissioning

 without any compromise on performance in order to provide a high level of quality,

accuracy and reliability to the process.

More than just a product, EPack Lite power controllers bring a tailored solution based

on more than 50 years of Eurotherm expertise.

> See EPack™ compact SCR power controllers brochure HA031554 to discover how

full EPack range can add value to your business

The EPack Lite-1PH controller provides control of single phase non variable resistive

or primary transformer loads. It combines simplicity of setup and operation in a

compact format.

The EPack Lite-2PH controller is the latest generation of power controllers designed

to be a cost-effective solution for the control of 3 phase loads. The 2 legs control is

particularly adapted to the control of balanced loads, directly, or through transformers.

Burst firing avoids generation of harmonics and reduces the consumption of reactive power.

The EPack Lite-3PH controller is the ideal solution for the control of non-variable resistive

or primary transformer loads. The control of each phase ensures accurate control,

even if the loads are unbalanced. The currents and voltage measures also allow a

high level of diagnostics, which can be used for alarm management.

The EPack Lite-2PH controller is the latest generation of power controllers designed

to be a cost-effective solution for the control of 3 phase loads. The 2 legs control is

particularly adapted to the control of balanced loads, directly, or through transformers.

Burst firing avoids generation of harmonics and reduces the consumption of reactive power.

The EPack Lite-3PH controller is the ideal solution for the control of non-variable resistive

or primary transformer loads. The control of each phase ensures accurate control,

even if the loads are unbalanced. The currents and voltage measures also allow a

high level of diagnostics, which can be used for alarm management.

The combination of advanced configurable firing modes allows close matching to

load characteristics to optimize process efficiency.

EPack Lite-3PH compact SCR power controllers

Three phase 3 leg control

EPack Lite-2PH compact SCR power controllers

Three phase 2 leg control

EPack Lite-1PH compact SCR power controllers

Unique features

• Large voltage capability from 100V to 500V

adjustable in the same variant

• Fast start up with ‘Quick Start’ or ‘Clone

Code’ features

• Adjustable control mode V2 or I2 control or open loop

• Wide range of firing modes: phase angle,

intelligent half cycle, variable modulation

burst firing, fixed modulation period & logic

• Built-in measurements: current, voltage,

impedance and more

• Load fault detection up to 1 element of 6

• SCCR 100kA with fuse

Specifications

EPack Lite-1PH controller order codes

The EPack Lite power controller is ordered using a short code for the

chargeable options and an extended option configuration code for

commissioning.

If the extended code is not used, the software configuration is completed

using a quick start procedure.

Current rating of EPack Lite controllers may be upgraded at any time using

a software key order code.

Benefits

The end user, the machine builder or the system integrator expects

the best solutions in terms of performance, ease of use and reliability

in order to control the energy delivered to their process.

Eurotherm EPack™ Lite-1PH Compact SCR Power Controllers offer

a simplified feature set for fast commissioning without compromise

on performance. They provide a high level of quality, accuracy and

reliability to the process. The products allow to control single phase

non variable resistive, primary transformer and short wave infrared

loads. The EPack Lite product combines simplicity of setup and

operation in a compact format. The configurable firing modes allow

close matching to load characteristics to optimise process efficiency.

• Help maximize yield with accurate and repeatable control

• Fast integration and commissioning with user display

• Ease of operation and maintenance

• Simplified design reduces stock and spares holding

Typical Applications

• Foodservice equipment

• Industrial machinery

• Medical equipment

• Packaging equipment

• Plastics processing equipment

Specifications

Controller

• Microprocessor based, limit controller

• Customer defined hysteresis, model number

dependent

• High limit, factory selectable

• Automatic reset on power loss

• Input filter time: 1 second

Thermocouple Sensor Input

• Ungrounded

• Type J and K thermocouple types

• >10 MΩ input impedance

Input Accuracy Span Range

• Type J: 0 to 764°F (-18 to 406°C)

• Type K: 0 to 999°F (-18 to 537°C)

• Calibration accuracy: ±6°C, ±1° at standard conditions

and actual calibration ambient

• Temperature stability: ±0.3 degree per degree change

in ambient

Allowable Operating Ranges

• Type J: 32 to 626°F (0 to 330°C)

• Type K: 32 to 820°F (0 to 438°C)

Output Types

• Electromechanical relay, Form A, minimum load

current: 100mA, 8A resistive load, 120VA pilot duty,

120/240VAC maximum, inductive, electrical life 6,000

cycles at rated current

Terminals

• 0.25 in. (6.4 mm) quick connect, push-on terminals

Agency Approvals

• UL® / EN 60730-1, 2, 9 automatic electronic controls

for household and similar use. File #E43684

• UL® 1998 software review class B

• W.E.E.E.; CE – see Declaration of Conformity

• RoHS directive (2011-65-EU)

Power

• 100-240VAC +10%; -15%; 50/60Hz, ±5%

• 10VA maximum power consumption

• Data retention upon power failure via nonvolatile

memory

Environment

• Operating temperature: 32 to 158°F (0 to 70°C)

• Storage temperature: -40 to 185°F (-40 to 85°C)

• Relative humidity: 0 to 90% RH, non-condensing

Features and Benefits

Fixed limit set point

• Provides tamper-proof operation

• Offers control flexibility

Dual channel sensors

• Detects sensor faults

• Provides a fail-safe design

• Verifies firmware

• Prevents sensor deviation and sensor

placement errors

High-limit operation

• Provides application flexibility

Fahrenheit or Celsius operation

• Delivers application flexibility

Sensor break protection

• Offers positive system shutdown

Agency approvals

• Meets certification requirements/compliance

Microprocessor-based technology

• Ensures accurate, repeatable protection

Status notification

• Signals user of status with two integrated LEDs

• Provides health check signal to inform operator

that the process is working correctly

Three-year warranty

• Ensures product support and reliability

As manufacturers are required to meet tighter safety

standards, Watlow has addressed this need with its new

SERIES LS safety limit. This new limit meets UL® 1998

and EN 60730 safety requirements and will shut down

a system to prevent damage to equipment or injury to

personnel.

Watlow’s SERIES LS is recommended for any application

where control failure could cause the temperature of

the application to continue to increase resulting in large

product scrap costs, damage to system equipment or

potential fire hazard.

The SERIES LS provides increased safety due to the use

of a factory fixed set point, factory fixed hysteresis and

the use of redundant temperature sensors to protect

against a single point sensor failure. Either sensor can

initiate an overtemperature limit condition along with a

deviation between sensors greater than the process

comparison value.

Watlow’s new SERIES LS offers fixed limit set point

temperature values that are customer definable in the

product configuration part number. It is available with

a potted module design configuration and push-on,

quick connect spade terminals to provide the electrical

connections.

Specifications

Limit Controller

• Microprocessor-based limit controller

• Nominal switching hysteresis, typically 3°F (1.7°C)

• High or low limit, factory selectable

• Latching output requires manual reset upon over or

under temperature condition

• Manual or automatic reset on power loss, factory

selectable

• Internal front panel or external customer supplied

momentary reset switch

• Input filter time: 1 second

Operator Interface

• 4 digit, 7 segment LED displays, 0.28 in. (7 mm) high

• °F or °C indicator LED

• Alarm indicator LED

• Continuous turn, velocity sensitive rotary encoder for

set point adjustment

• Front panel SET/RESET

Standard Conditions for Specifications

• Rated line voltage, 50 to 60Hz, 0 to 90% RH

non-condensing, 15-minute warm-up

• Calibration ambient range: 77°F (25°C) ±3°C

Sensor Input

Thermocouple

• Grounded or ungrounded

• Type E, J, K, T thermocouple

• >10 MΩ input impedance

• 250 nV input referenced error per 1Ω source

resistance

RTD

• 2-wire platinum, 100Ω

• DIN-curve (0.00385 curve)

• 125μA nominal RTD excitation current

Input Accuracy Span Range

Type E: -328 to 1470°F (-200 to 800°C)

Type J: 32 to 1382°F (0 to 750°C)

Type K: -328 to 2282°F (-200 to 1250°C)

Type T: -328 to 662°F (-200 to 350°C)

RTD (DIN) -328 to 1472°F (-200 to 800°C)

Thermocouple Input

• Calibration accuracy: ±1% of input accuracy span,

±1° at standard conditions and actual calibration

ambient. Exception: Type T, ±2.4% of input accuracy

span for -328 to 32°F (-200 to 0°C)

• Temperature stability: ±0.3° per degree change in ambient

SERIES LV Features and Benefits

Adjustable set points

• Offers control flexibility

Four character LED display

• Improves set point selection accuracy

Multiple mounting options

• Minimizes installation time

High or low limit with auto or manual reset

• Provides application flexibility

Fahrenheit or Celsius operation with indication

• Offers application flexibility

Sensor break protection

• Provides positive system shutdown

Agency approvals

• Meets certification requirements/compliance

Microprocessor based technology

• Ensures accurate, repeatable control

Watlow’s family of microprocessor-based limit controllers

provides an economical solution for applications requiring

temperature limit control. Limits are available in a broad

range of packaging options, allowing selection of the best

version for an application. Limits are available with an

operator interface and can be ordered in 1/8 DIN-square

panel mount or DIN-rail mount design configurations.

The SERIES LV limit family incorporates a microprocessor

design platform. This design provides

significant

improvements in the performance, repeatability and

accuracy offered by Watlow’s current line of analog

limit controllers.

The variable SERIES LV limit includes an operator

interface for viewing and selecting the set point. A red,

four-character seven segment LED displays the set point.

Set point selection is made with a continuous turn rotary

encoder. Operating range temperature values are

customer defined in the product configuration

part number.

The limit controllers are factory mutual (FM) approved with

special UL® approval for the open board potted versions.

Watlow’s limit controllers include industry leading service

and support and are protected by a three-year warranty.