Pro-EC44

West Pro-EC44 Specifications

1 or 2 control loops

ON/OFF, PID heat only & Heat/Cool, Valve Motor Drive, Ratio Cascade Control

255 segment profiler shared in 64 programs

5 PID sets manual or automatic gain scheduling

7 Alarms – absolute, deviation, rate of change, sensor break, recorder memory, power

Datalogging function

USB host for configuration (read/write) and logged data (read)

Ethernet – Modbus TCP, RS485 - Modbus RTU (Master/Slave)

Up to to 2 analogue inputs, 9 outputs, remote setpoint input, 9 digital inputs

PRO-EC44 Single or two loop advanced controller with graphic display

KEY FEATURES

 1/4 DIN Format  Single or Two Loop  Graphical / text LCD Display (red/green)  USB configuration and data access  Profiler 256 segments shared in 64 progs  Datalogger with real time clock  Modbus RS485 or Modbus TCP Ethernet  Standards CE, UL

Overview

Pro-EC44 is a 1/4 DIN process controller with graphical text display, advanced control capability and modular I/O options providing flexibility to fit wide range of industrial manufacturing and process applications.

Fast and easy front panel setup for both for simple and advanced control tasks

Pro-EC44 simplifies user setup with a step by step wizard configuration saving working through several menus for initial setup. A Logical menu structure for intuitive navigation allows fast changes and updates to individual settings.

Configure controllers without connecting to a PC

Configuration files can be downloaded to a controller using a flash memory stick via the front USB port allowing for fast programming. Settings can also be read via the USB port to clone additional devices or configure a replacement. Datalog files can also be extracted locally via the USB for convenient access of process data.

Easy access user operation

The Pro-EC44 pages are formatted to show users important process information on a single page, minimising the steps to access data and settings. A colour change green/red LED backlight provides easily recognisable alarm indication to improve response times for corrective action.

Comprehensive control ….. and much more.

Pro-EC44 includes many features to ensure good control performance on a wide range of applications. Single or dual loop capability in a single device, cascade, valve and ratio enhanced control with support features such as real time clock, timer, gain scheduling and profiler ensure Pro-EC44 has the flexibility for a process system needs. In addition datalogging, trending, USB, Ethernet options add even more capability to an already powerful device.

Fast configuration via configuration interface.

Direct access for programming is available via a top of controller connection port. The interface provides easy and fast access with Blue Control software to configure the controller or drilldown into process issues with minimal disruption.

Key Features

Ref DS-EC44-01013-2-EN

Specification

UNIVERSAL INPUT 1 AND 2

Sampling Rate:

10 per second.

Resolution:

16 bits. Always four times better than display resolution.

Impedance:

>10M resistive, except DC mA (5) and V (47k ).

Temp Stability:

Error <0.01% of span per °C change in ambient temperature.

Supply Variation:

Supply voltage influence negligible within supply limits.

Humidity Influence:

Negligible if non-condensing.

Process Display:

Displays up to 5% over and 5% under span limits.

Process Variable Input Offset:

Reading adjustable ± Controller Span. +ve values added to Process Variable, -ve values subtracted from Process Variable

Sensor Break Detection:

Thermocouple & RTD - Control goes to pre-set power value. High & Sensor Break alarms activate. Linear (4 to 20mA, 2 to 10V & 1 to 5V only) - Control goes to pre-set power value. Low & Sensor Break alarms activate.

Isolation:

Reinforced safety isolation from outputs and other inputs

Supported Thermocouple Types & Ranges:

Type

Range °C

Range °F

+100 to 1824°C

+211 to 3315°F

0 to 2320°C

32 to 4208°F

0 to 2315°C

32 to 4199°F

-240 to 1000°C

-400 to 1832°F

-200 to 1200°C

-328 to 2192°F

-240 to 1373°C

-400 to 2503°F

0 to 762°C

32 to 1402°F

0 to 1399°C

32 to 2551°F

PtRh 20%:40%

0 to 1850°C

32 to 3362°F R

0 to 1759°C

32 to 3198°F

0 to 1762°C

32 to 3204°F

-240 to 400°C

-400 to 752°F

Optional decimal place can be displayed on all ranges

Thermocouple Calibration:

0.1% of full range, 1LSD (1°C for internal CJC if enabled). Linearization better than better 0.2C (0.05 typical) on ranges marked * in the table above. Linearization for other ranges is better than better than 0.5C. BS4937, NBS125 & IEC584

Supported RTD Types & Ranges:

Type

Range °C

Range °F

3-Wire PT100

-199 to 800°C

-328 to 1472°F

NI120

-80 to 240°C

-112 to 464°F

Optional decimal place can be displayed on all ranges

RTD Calibration:

0.1% of full range, 1LSD. Linearization better than 0.2C (0.05 typical). PT100 input to BS1904 & DIN43760 (0.00385//°C).

RTD Excitation:

Sensor current 150μA 10%.

Lead Resistance:

<0.5% of span error for max 50per lead, balanced.

Supported Linear Types & Ranges:

Type

Range

Offset Range

mA DC

0 to 20mA DC

4 to 20mA DC

mV DC

0 to 50mV DC

10 to 50mV DC

V DC

0 to 5V DC

1 to 5V DC

V DC

0 to 10V DC

2 to 10V DC

Potentiometer

≥100 ohms

N/A

Scalable from -2000 to 100000. Decimal point selectable from0 to 3 places, but rounds to 2

places above 99.999; 1 place above 999.99 and no decimal above 9999.9.

Maximum Overload:

1A on mA input terminals, 30V on voltage input terminals.

DC Calibration:

0.1% of full range, 1LSD.

DC Input Multi-Point Linearization:

Up to 15 scaling values can be defined anywhere between 0.1 and 100% of input.

Ref DS-EC44-01013-2-EN

Input Functions:

Function

Input 1

Input 2

Process Control

Loop 1

Loop 2

Cascade Control

Slave Loop

Master Loop

Ratio Control

Controlled Variable

Un-controlled Variable

Remote Setpoint (RSP)

RSP on loop 1

Valve Position Feedback

Valve on loop 1

RSP Linear inputs only, scalable between -9999 to 10000, but actual setpoint value is kept within the setpoint limit settings

#AUXILIARY INPUT A

Supported Input Types & Ranges:

Type

Range

Offset Range

MA DC

0 to 20mA DC

4 to 20mA DC

V DC

0 to 5V DC

1 to 5V DC

V DC

0 to 10V DC

2 to 10V DC

Accuracy:

0.25% of input range 1 LSD.

Sampling Rate:

4 per second.

Resolution:

16 bits.

Impedance:

>10M resistive, except DC mA (10) and V (47k ).

Sensor Break Detection:

4 to 20mA, 2 to 10V and 1 to 5V ranges only. Control goes to pre-set power value if Aux Input is the active setpoint source.

Isolation:

Reinforced safety isolation from outputs and inputs.

Input Function:

Remote Setpoint (RSP) input, Scalable between ±0.001 & ±10000, but always constrained by the setpoint limit settings.

DIGITAL INPUTS A & C

Selectable Digital Input Functions:

Function

Logic High*

Logic Low*

┌ ┐

Loop 1 Control Select

Enabled

Disabled

┌ ┐

Loop 2 Control Select

Enabled

Disabled

┌ ┐

Loop 1 Auto/Manual Select

Automatic

Manual

┌ ┐

Loop 2 Auto/Manual Select

Automatic

Manual

┌ ┐

Loop 1 Setpoint Select

Main SP

Alternate SP

┌ ┐

Loop 2 Setpoint Select

Main SP

Alternate SP

┌ ┐

Loop 1 Pre-Tune Select

Stop

Run

┌ ┐

Loop 2 Pre-Tune Select

Stop

Run

┌ ┐

Loop 1 Self-Tune Select

Stop

Run

┌ ┐

Loop 2 Self-Tune Select

Stop

Run

█

Profile Run/Hold

Hold

Run

█

Profile Hold Segment Release

Release

No Action

█

Profile Abort

Abort

No Action

█

Data Recorder Trigger

Not Active

Active

█

Output n Forcing Open/Close

Open

Closed

█

Clear All Latched Outputs

No Action

Reset

█

Output n Clear Latch

No Action

Reset

█

Key n Mimic (for L D U R)

No Action

Key Pressed

█

Inputs C1-C7 can be used as Binary or BCD Profile Selection

Binary 0

Binary 1 *The High/Low function can be switched using Inputs to Invert.

Digital Input Sensitivity:

Inputs work in parallel with equivalent menus, either can change function status. Response <0.25 second. █ = Level Sensitive: High or low sets status. ┌ ┐ = Edge Sensitive: High-Low or Low-High transition changes function. Pre-Tune always off at power on (except auto pre-tune), but others retain their power off status at power on.

Std. Logic State: Volt-free (or TTL):

Open contacts (>5000or 2 to 24VDC signal = Logic High Closed contacts (<50 or -0.6 to +0.8VDC signal = Logic Low.

Inverted Logic:

Open contact (>5000



or 2 to 24VDC signal = Logic Low

Closed contact (<50 or -0.6 to +0.8VDC signal = Logic High.

Number Available

0 to 9. One from Module Slot A, 8 from Multi-Digital Input C

Isolation:

Reinforced safety isolation from inputs and outputs.

Ref DS-EC44-01013-2-EN

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