West Control Solutions Pro-EC44 User Manual
Pro-EC44
2-Loop Graphical Profile
Controller & Recorder
Pro-EC44 User Guide 59540-1
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
WARNING: THE INTERNATIONAL HAZARD SYMBOL IS INSCRIBED
ADJACENT TO THE REAR CONNECTION TERMINALS. IT IS IMPORTANT
TO READ THIS MANUAL BEFORE INSTALLING OR COMMISSIONING THE
UNIT.
WARNING: THIS SYMBOL MEANS THE EQUIPMENT IS PROTECTED
THROUGHOUT BY DOUBLE INSULATION.
WARNING: PRODUCTS COVERED BY THIS MANUAL ARE SUITABLE FOR
INDOOR USE, INSTALLATION CATEGORY II, POLLUTION CATEGORY 2
ENVIRONMENTS.
Note: It is strongly recommended that applications incorporate a high or low limit
protective device, which will shut down the equipment at a pre-set process
condition in order to prevent possible damage to property or products.
This manual supplements the Concise Product manual supplied with each instrument at the
time of shipment. Information in this installation, wiring and operation manual is subject to
change without notice.
Copyright © October 2013, Danaher Corporation, all rights reserved. No part of this
publication may be reproduced, transmitted, transcribed or stored in a retrieval system, or
translated into any language in any form by any means without the written permission of
Danaher/West Control Solutions.
Copies of this manual are available in electronic format on the West Control Solutions web
site (www.west-cs.com) Printed versions may be purchased from West Control Solutions or
its representatives.
This user guide covers all versions of the West Pro-EC44 controller.
©WCS – Product & specifications may be subject to change without notice - E&OE
Pro-EC44 Product Manual - 59540-1 October 2013 Page i
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Warranty and Returns Statement
These products are sold by West Control Solutions under the warranties set forth in the
following paragraphs. Such warranties are extended only with respect to a purchase of these
products, as new merchandise, directly from West Control Solutions or from a West Control
Solutions distributor, representative or reseller and are extended only to the first buyer
thereof who purchases them other than for the purpose of resale.
Warranty
These products are warranted to be free from functional defects in material and workmanship
for three years from the time the products leave West Control Solutions factory and to
conform at that time to the specifications set forth in the relevant West instruction manuals
sheet or sheets.
THERE ARE NO EXPRESSED OR IMPLIED WARRANTIES, WHICH EXTEND BEYOND THE
WARRANTIES HEREIN AND ABOVE SET FORTH. NO WARRANTY IS MADE OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE
PRODUCTS.
Limitations
West Control Solutions shall not be liable for any incidental damages, consequential
damages, special damages, or any other damages, costs or expenses excepting only the
cost or expense of repair or replacement as described above. Products must be installed and
maintained in accordance with West Control Solutions instructions. There is no warranty
against damage to the product resulting from corrosion. Users are responsible for the
suitability of the products to their application.
For a valid warranty claim, the product must be returned carriage paid to the supplier within
the warranty period. The product must be properly packaged to avoid damage from
electrostatic discharge or other forms of harm during transit.
Page ii Pro-EC44 Product Manual - 59540-1 October 2013
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
How to use this manual
This manual is structured to give easy access to the information required for all aspects of
the installation and use and of the controller. The main sections are shown here, with a full
table of contents at the end.
Warranty and Returns Statement ..................................................................................................... ii
1 Introduction............................................................................................................................. 1
2 Installation .............................................................................................................................. 2
3 Field Upgrade Options ........................................................................................................... 4
4 Electrical Installation .............................................................................................................. 9
5 Powering Up .......................................................................................................................... 29
6 Messages & Error Indications.............................................................................................. 31
7 Application Setup ................................................................................................................. 33
8 Operation and Configuration Menus ................................................................................... 36
9 Input Calibration & Multi-point Scaling ............................................................................... 70
10 Digital Inputs ......................................................................................................................... 75
11 Cascade Control ................................................................................................................... 78
12 Ratio Control ......................................................................................................................... 81
13 Redundant Input ................................................................................................................... 83
14 Valve Motor Drive / 3-Point Stepping Control ..................................................................... 84
15 Setpoint Sources .................................................................................................................. 86
16 Profiler ................................................................................................................................... 87
17 USB Interface ........................................................................................................................ 96
18 Data Recorder ................................................................ ....................................................... 97
19 Controller Tuning.................................................................................................................. 99
20 Serial Communications ...................................................................................................... 109
21 Glossary .............................................................................................................................. 204
22 PC Software ........................................................................................................................ 235
23 Specifications ..................................................................................................................... 245
24 Pro-EC44 Product Coding .................................................................................................. 255
25 Table of Contents ................................................................ ............................................... 257
Pro-EC44 Product Manual - 59540-1 October 2013 Page iii
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
1 Introduction
This product is a 1/4 DIN size (96 x 96mm front) microprocessor based graphical process
controller, featuring a 160 x 80 pixel, monochrome LCD with dual colour (red/green)
backlight. It operates from 100-240V at 50/60 Hz or 24V-48V AC/DC, depending on the
model purchased. It can measure and control up to two process variables from a variety of
sources such as temperature, pressure, flow and level. Primary and secondary control
outputs are possible for each loop.
Optional features include a second process input, USB interface, remote setpoint inputs
RS485 or Ethernet communications, profile control and data recording. Control options
include cascade, ratio and 3-point stepping valve control. Automatic tuning or 5 stage gainscheduling are also available.
The USB Interface option allows uploading or downloading instrument configuration settings
to/from a USB memory stick, for easy configuration of multiple instruments or transfer to/from
the PC configuration software. If the data recorder or profiler options are fitted, recordings
and profile information can be transferred via the memory stick.
The data recorder option allows the user to make recordings of the processes over time.
Recordings can be transferred to a memory stick using the USB interface or downloaded via
one of the communications options.
The Profiler option allows the user to predefine up 255 segments, shared amongst up to 64
Setpoint Profiles. These control the setpoint levels for the control loop(s) over time,
increasing, decreasing or holding their values as required. When combined with the real-time
clock (part of the Data Recorder option) the profiling capabilities are expanded to allow
automatic program start at a defined time and day.
Inputs are user configurable for thermocouple and RTD probes, as well as linear process
signal types such as mVDC, VDC or mADC. Two-point calibration or multipoint scaling can
compensate for errors or non-linear signals. Output options include single or dual relays,
single or dual SSR drivers, triacs or linear mA/V DC. These can be used for process control,
alarms/events or retransmission of the process variable or setpoint to external devices.
Transmitter power supply options can provide an unregulated 24V DC (22mA) auxiliary
output voltage, or a 0 to 10VDC stabilised excitation for external signal transmitters.
Up to 7 alarms can be defined as process high or low, deviation (active above or below
controller setpoint), band (active both above and below setpoint), rate of input change,
control loop, PID power or signal break types. Alarm status can be indicated by lighting an
LED, changing the display backlight colour or viewing the active alarm status screen. These
alarms can be linked to any suitable output.
Configuration for basic applications is possible using the easy Setup Wizard run
automatically at first power-up or manually later. Access to the full range of parameters is via
a simple menu driven front panel interface, or the PC based configuration software.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 1
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: Installation should be only performed by technically competent
personnel. It is the responsibility of the installing engineer to ensure that
the configuration is safe. Local Regulations regarding electrical installation
& safety must be observed (e.g. US National Electrical Code (NEC) or
Canadian Electrical Code).
2 Installation
Unpacking
1. Remove the product from its packing. Retain the packing for future use, in case it is
necessary to transport the instrument to a different site or to return it to the supplier for
servicing.
2. The instrument is supplied with a panel gasket and push-fit mounting clamp. A multi-page
concise manual is supplied with the instrument, in one or more languages. Examine the
delivered items for damage or defects. If any are found, contact your supplier
immediately.
Installation
Figure 1. Main dimensions
Panel-Mounting
The controller should be mounted in a properly earthed metal cabinet. The mounting panel
must be rigid and may be up to 6.0mm (0.25 inches) thick. The cut-out size is:
92mm x 92mm (+0.5mm / -0.0mm).
Pro-EC44 Product Manual - 59540-1 October 2013 Page 2
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Note: The mounting clamp tongues may engage the ratchets either on the sides
or the top/bottom faces of the Instrument housing. When installing several
Instruments side-by-side in one cut-out, use the ratchets on the top/bottom faces.
CAUTION: Ensure the inside of the panel remains within the instrument
operating temperature and that there is adequate airflow to prevent
overheating.
Gasket
Mounting Panel
Clamp
Ratchets
Instrument
Housing
1. Insert instrument into the
panel cut-out.
2. Hold front bezel firmly
(without pressing on the
display area), and re-fit
mounting clamp. Push the
clamp forward, using a tool if
necessary, until gasket
compresses and instrument
is held firmly in position.
CAUTION: Do not remove the panel gasket, as this may result in inadequate
clamping and sealing of the instrument to the panel.
Note: For an effective IP66 seal against dust and moisture, ensure gasket is well
compressed against the panel, with the 4 tongues located in the same ratchet
slot.
Instruments may be mounted side-by-side in a multiple installation, but instrument to panel
moisture and dust sealing will be compromised. Allow a 20mm gap above, below and behind
the instrument for ventilation. The cut-out width (for n instruments) is:
(96n - 4) mm or (3.78n - 0.16) inches
If panel sealing must be maintained, mount each instrument into an individual cut-out with
10mm or more clearance between the edges of the holes.
Figure 2. Panel-Mounting the instrument
Once the instrument is installed in its mounting panel, it may be subsequently removed from
its housing if necessary, as described in the Fitting and Removing Plug-in Modules section.
Cleaning
Clean the front panel by washing with warm soapy water and dry immediately. If the USB
option is fitted, close the USB port cover before cleaning.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 3
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
PART
NUMBER
AVAILABLE OPTIONS & ACCESSORIES
BOARD
IDENTIFICATION
NUMBER
MODULE SLOT 1
PO1-R10
Single Relay Output for plug-in module slot 1
716/01
PO1-S20
Single SSR Driver Output for plug-in module slot 1
716/02
PO1-T80
Triac Output for plug-in module slot 1
716/03
PO1-C21
Linear mA / Voltage Output for plug-in module slot 1
639/01
MODULE SLOT 2 or 3
PO2-R10
Single Relay Output for plug-in module slot 2 or 3
717/01
PO2-W09
Dual Relay Output for plug-in module slot 2 or 3
644/01
PO2-S20
Single SSR Driver Output for plug-in module slot 2 or 3
717/02
PO2-S22
Dual SSR Driver Output for plug-in module slot 2 or 3
644/02
PO2-T80
Triac module Output for plug-in module slot 2 or 3
647/01
PO2-W08
24VDC Transmitter Power Supply for module slot 2 or 3
642/01
MODULE SLOT A
PA1-W03
Digital Input for plug-in module slot A
641/02
PA1-W04
Basic Auxiliary Input for plug-in module slot A
653/01
PA1-W06
RS485 Serial Communications for plug-in module slot A
680/01
PA1-ETH
Ethernet Communications for plug-in module slot A
707/01
ACCESSORIES
PS1-PRF
Profiler Enable Key-code
PS1-PRW
Blue Control PC Configuration Software & Lead
CAUTION: Plastic pegs prevent fitting of older non-reinforced single relay
modules (board identification numbers 637/01 and 638/01). Fitting the older
relay modules reduces the isolation rating to Basic 240V isolation and is
therefore not recommended.
Remove this peg when fitting Dual Relay Modules.
Board Positions
Note: All dual relay modules have reinforced isolation.
3 Field Upgrade Options
Plug-Modules and Upgradeable Functions
Plug-Modules can be either pre-installed at the time of manufacture, or retrofitted in the field
to expand the capabilities of the controller. Contact your supplier to purchase these items.
Part numbers and circuit board identification numbers for the plug-in modules and
accessories are shown in below:
Pro-EC44 Product Manual - 59540-1 October 2013 Page 4
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Board Mounting Struts (x4)
Front Panel Removal Latch (x1)
Plug-in Module A
Plug-in Module 3
Power Supply Board
2nd Universal Input & Base
Option 2 Board
1st Universal Input & Base
Option 1 Board
Plug-in Module 1
Plug-in Module 2
USB/Digital Input C Option
Board
CAUTION: Before removing the instrument from its housing, ensure that all
power has been removed from the rear terminals. Modules / boards should
be replaced by a technically competent technician.
Figure 3. Rear view (uncased) & board positions
Preparing to Install or Remove Plug-in Modules
1. Grip the edges of the front panel (there is a finger grip on each edge) and pull it forwards
approximately 10mm, until the Front Panel Removal Latch prevents further movement.
The purpose of the latch is to prevent removal of the instrument without the use of a tool.
2. The Front Panel Removal Latch must be pushed down to allow removal of the instrument.
Using a tool (e.g. screwdriver or pen tip), press down it down through the front central
ventilation hole. This will release the instrument from the case.
3. The internal boards can now be accessed. Take note of the orientation of the instrument
and boards for subsequent replacement into the housing. The positions of the boards,
their mountings and the Front Panel Removal Latch are shown above.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 5
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Main Board Connectors
POWER SUPPLY
BOARD
Transformer Colour
Code
100-240V (Yellow)
24-48V(Blue)
Display Board
Connections
1st UNIVERSAL
INPUT / BASE
OPTION 1 BOARD
Module Slot 3
Connector PL4B
Module Slot A
Connectors PL5, & PL6
Module Slot 1
Connectors PL7 & PL8
PC Configurator
Socket SK1
Module Slot 2
Connector PL4A
CAUTION: Replacement of boards must be carried out by a technically
competent technician. If the Power Supply board does not match the
labelling, users may apply incorrect voltage resulting in irreparable
damage.
This product is designed to allow the user to reconfigure some hardware options in the field
by changing the plug-in modules in slots 1, 2, 3, & A located on the power supply and 1st
universal input boards. The main boards (display/CPU, power supply, inputs 1 & 2 and digital
input/USB) are factory fitted, but may be removed while reconfiguring the plug-in modules.
Take care when re-fitting these boards. Observe the power supply board transformer colour,
and case labelling to check the supply voltage, otherwise irreparable damage may occur.
Figure 4. Main board connectors
Pro-EC44 Product Manual - 59540-1 October 2013 Page 6
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: Check for correct orientation of the modules and that all pins
are located correctly.
CAUTION: Before replacing the instrument in its housing, ensure that all
power has been removed from the rear terminals.
CAUTION: Ensure that the instrument is correctly orientated. A mechanical
stop will operate if an attempt is made to insert the instrument in the wrong
orientation, this stop MUST NOT be over-ridden.
Removing/Replacing Option Modules
1. To remove or replace Plug-in Modules 1, 2, 3 or A it is necessary to detach the power
supply and input boards from the front panel by lifting first the upper and then lower
mounting struts.
2. Remove or fit the modules to the connectors on the power supply and input boards. The
location of the connectors is shown below. Plastic pegs prevent fitting of older nonreinforced single relay modules – Remove the peg to fit dual relay modules
3. Assemble the Power Supply and Input boards together. Tongues on each option module
locate into slots cut into the main boards, opposite each of the connectors. Hold the Power
and Input boards together and relocate them back on their mounting struts.
4. Push the boards forward to ensure correct connection to the front Display/CPU board and
re-check the installation of the Option C and/or 2nd Input / Base Option 2 boards if present.
Replacing the Instrument in its Housing
With the required option modules correctly located into their respective positions the
instrument can be replaced into its housing as follows:
1. Hold the Power Supply and Input boards together.
2. Align the boards with the guides in the housing.
3. Slowly and firmly, push the instrument into position in its case.
Auto Detection of Plug-in Modules
The instrument automatically detects which plug-in modules have been fitted into each slot.
The menus and screens change to reflect the options compatible with the hardware. The
modules fitted can be viewed in the product information menu, as detailed in the Product &
Service Information Mode section of this manual.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 7
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: Servicing of the Data Recorder/RTC circuit and replacement of
the lithium battery should only be carried out by a technically competent
technician.
Data Recorder Board
If installed, the Data Recorder memory and Real Time Clock (RTC) components are located
on a plug-in daughter board attached to the front Display/CPU board.
Profiler Enabling
If you purchased a controller with the Profiler option installed, these features will be enabled
during manufacture.
Controllers supplied without the Profiler option installed can be upgraded in the field by
purchasing a licence code number from your supplier. A unique code must be purchased to
enable profiling on each controller that requires it.
Entering the Profiler Enable Code
Hold down the L and D keys during the power-up “splash screen”.
Using the D or U keys, enter the 16-character licence code in the displayed screen.
Press R to move on to the next character. Press L to move back to the previous
character.
Press R after entering the final character.
To confirm if profiling is installed in your instrument, check the Controller Feature Information
in Product & Service Information Mode.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 8
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: Installation should be only performed by technically competent
personnel. It is the responsibility of the installing engineer to ensure that
the configuration is safe. Local Regulations regarding electrical installation
& safety must be observed (e.g. US National Electrical Code (NEC) or
Canadian Electrical Code).
CAUTION: The only wires that should run together are those of the same
category.
4 Electrical Installation
Avoiding EMC Problems
This controller has passed EMC compliance tests to EN61326. There should be no difficulty
achieving this level of compliance in use, but it should be borne in mind that the wiring of the
installation can significantly reduce the efficiency of instrumentation immunity due to the ease
with which high frequency RF can enter via unprotected cables.
The following general recommendations can reduce the possibility of EMC problems.
1. If the instrument is being installed in existing equipment, wiring in the area should be
checked to ensure that good wiring practices have been followed.
2. The controller should be mounted in a properly earthed metal cabinet. All round metal
shielding is important, so the cabinet door may require a conductive sealing strip.
3. It is good practice to ensure that the AC neutral is at or near ground (earth) potential.
A proper neutral will help ensure maximum performance from the instrument.
4. Consider using a separate isolation transformer to feed only the instrumentation. A
transformer can protect instruments from noise found on the AC power supply.
Cable Isolation & Protection
Four voltage levels of input and output wiring may be used with the unit:
1. Analogue inputs or outputs (for example thermocouple, RTD, VDC, mVDC or mADC)
2. Relays & Triac outputs
3. Digital Inputs & SSR Driver outputs
4. AC power
If any wires need to run parallel with any from another category, maintain a minimum space
of 150mm between them. If wires MUST cross each other, ensure they do so at 90 degrees
to minimise interference.
Keep signal cables as short as possible. If an earthed thermocouple is used or if the sensor
has a screened cable, it should be earthed at one point only, preferably at the sensor
location or cabinet entry point, by means of a metal gland. Ideally all analogue and digital
signals should be shielded like this, but for unscreened cables, large diameter ferrite sleeves
at the cabinet entry point are an effective method of reducing RF interference. Looping
cables through the ferrite sleeves a number of times improves the efficiency of the filtering.
For mains input cables the fitting a suitable mains filter can provide good results.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 9
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Noise Suppression at Source
If possible, eliminate mechanical contact relays and replace with solid-state relays.
Noise-generating devices such as Ignition transformers, arc welders, motor drives, relays
and solenoids should be mounted in a separate enclosure. If this is not possible, separate
them from the instrumentation, by the largest distance possible.
Many manufacturers of relays, contactors etc supply 'surge suppressors' to reduce noise at
its source. For those devices that do not have surge suppressors supplied, ResistanceCapacitance (RC) networks and/or Metal Oxide Varistors (MOV) may be added.
Inductive coils:- MOVs are recommended for transient suppression in inductive coils.
Connect as close as possible, in parallel to the coil. Additional protection may be provided by
adding an RC network across the MOV.
Figure 5. Transient suppression with inductive coils
Contacts:- Arcing may occur across contacts when they open and close. This results in
electrical noise as well as damage to the contacts. Connecting a properly sized RC network
can eliminate this arc.
For circuits up to 3 amps, a combination of a 47 ohm resistor and 0.1 microfarad capacitor
(1000 volts) is recommended. For circuits from 3 to 5 amps, connect two of these in parallel.
Figure 6. Contact noise suppression
Pro-EC44 Product Manual - 59540-1 October 2013 Page 10
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: The placement of probes into pipe work some distance from the
heating vessel leads to transport delay, which results in poor control.
THERMOCOUPLE WIRE COLOUR CHART
Type
International
IEC584-3
USA ANSI
MC 96.1
British
BS1843
French
NFC 42-324
German
DIN 43710
J
+*
Black
Black
White
Black
Yellow
Black
Yellow
Black
Red
Blue
-
White
Red
Blue
Black
Blue
T
+
Brown
Brown
Blue
Blue
White
Blue
Yellow
Blue
Red
Brown
-
White
Red
Blue
Blue
Brown
K
+
Green
Green
Yellow
Yellow
Brown
Red
Yellow
Yellow
Red
Green
-*
White
Red
Blue
Purple
Green
N
+
Pink
Pink
Orange
Orange
Orange
Orange
-
White
Red
Blue
B
+
Grey
Grey
Grey
Grey
Red
Grey
-
White
Red
Grey
R & S
+
Orange
Orange
Black
Green
White
Green
Yellow
Green
Red
White
-
White
Red
Blue
Green
White
C (W5)
+
White
White
-
Red
Note: * = Wire is magnetic – a magnet can be used to assist with correctly
identifying the type and polarity of the conductors
+ Wire
Sheath
- Wire
Sensor Placement (Thermocouple or RTD)
If a temperature probe is to be subjected to corrosive or abrasive conditions, it must be
protected by an appropriate thermowell.
Probes must be positioned to reflect the true process temperature:
1. In a liquid media - the most agitated area
2. In air - the best circulated area
For a two wire RTD, a wire link should be used in place of the third wire (see the wiring
section for details). Two wire RTDs should only be used with lead lengths less than 3 metres.
Use of three wire RTDs is strongly recommended to reduce errors do to lead resistance.
Thermocouple Wire Identification
The different thermocouple types are identified by their wires colour, and where possible, the
outer insulation as well. There are several standards in use throughout the world, but most
regions now use the International IEC584-3 standard.
The table below shows the wire and sheath colours used for most
common thermocouple types. The format used in this table is:
Pro-EC44 Product Manual - 59540-1 October 2013 Page 11
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: Installation should be only performed by technically competent
personnel. It is the responsibility of the installing engineer to ensure that
the configuration is safe. Local Regulations regarding electrical installation
& safety must be observed (e.g. US National Electrical Code (NEC) or
Canadian Electrical Code).
CAUTION: This equipment is designed for installation in an enclosure that
provides adequate protection against electric shock. The isolation switch
should be located in close proximity to the unit, in easy reach of the
operator and appropriately marked.
WARNING: This symbol means the equipment is protected throughout by
double insulation. All external circuits connected must provide double
insulation. Failure to comply with the installation instructions may impact
the protection provided by the unit.
Pre-wiring – Cautions, Warnings & Information
WARNING:
TO AVOID ELECTRICAL SHOCK, AC POWER WIRING MUST NOT BE CONNECTED TO THE
SOURCE DISTRIBUTION PANEL UNTIL ALL WIRING PROCEDURES ARE COMPLETED.
CHECK THE INFORMATION LABEL ON THE CASE TO DETERMINE THE CORRECT
VOLTAGE BEFORE CONNECTING TO A LIVE SUPPLY.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 12
Connections and Wiring
Note: The wiring diagram below shows all possible combinations to the main
connections (numbered 1 to 24) in the centre of the case rear. The actual
connections required depends upon the features and modules fitted.
Central Terminal Connections
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
.
Figure 7. Central Terminals 1 to 24
WARNING:
CHECK THE INFORMATION LABEL ON THE CASE TO DETERMINE THE CORRECT VOLTAGE
BEFORE CONNECTING TO A LIVE SUPPLY.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 13
Outer Terminal Connections
Note: The wiring diagram below shows the Central Terminals (numbered 25 to
42) at the sides of the case rear. Connections for the 2nd Input, Base Option 2
and Digital Input C are shown. The actual connections required depends upon
the features and modules fitted.
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Figure 8. Outer Terminals 25 to 42
Pro-EC44 Product Manual - 59540-1 October 2013 Page 14
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
CAUTION: This equipment is designed for installation in an enclosure that
provides adequate protection against electric shock. An isolation switch
should be located in close proximity to the unit, in easy reach of the
operator and appropriately marked.
Power Connections
WARNING:
CHECK THE INFORMATION LABEL ON THE CASE TO DETERMINE THE CORRECT VOLTAGE
BEFORE CONNECTING TO A LIVE SUPPLY.
Power Connections - Mains Powered Instruments
Mains powered instruments operate from a 100 to 240V (±10%) 50/60Hz supply. Power
consumption is 20VA. Connect the line and neutral as illustrated via a UL listed fuse type:
250V AC 1Amp anti-surge and a two-pole IEC60947-1 & IEC60947-3 compliant isolation
switch / circuit breaker located within easy reach of the operator and appropriately marked.
If relays switch mains voltage this should be separate from the instruments mains supply.
Figure 9. Mains Power Connections
Power Connections - 24/48V AC/DC Powered Instruments
24/48V AD/DC powered instruments will operate from a 20 to 48V AC or 22 to 55V DC
supply. AC power consumption is 15VA max, DC power consumption is 12 watts max.
Connection should be via a UL listed fuse type: 65v dc 350mAamp anti-surge and a two-pole
IEC60947-1 & IEC60947-3 compliant isolation switch / circuit breaker located within easy
reach of the operator and appropriately marked.
Figure 10. 24/48V AC/DC Power Connections
Pro-EC44 Product Manual - 59540-1 October 2013 Page 15
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Universal Input 1 Connections
Universal Input 1 is present on all models. This input is normally used for the measured
variable signal from a process to be controlled. It can be connected to thermocouples;
resistance temperature detectors; analogue mA; mV or V DC signals. The input settings are
in the Input 1 Configuration sub-menu. Connections for the various types are shown below.
Ensure that the signal is correctly connected, paying particular attention to the polarity.
Universal Input 1 Connections - Thermocouple (T/C)
Supported thermocouple types & ranges are listed in the input specifications section on page
245. Only use the correct thermocouple wire or compensating cable from the sensor to the
instrument terminals avoiding joints in the cable if possible. Where joints are made, special
thermocouple connectors must be used. Failure to use the correct wire type and connectors
will lead to inaccurate readings. Ensure correct polarity of the wires by cross-referencing the
colours with the thermocouple reference table above.
Figure 11. Input 1 - Thermocouple Connections
Universal Input 1 Connections – PT100 / NI120 (RTD) input
The inputs supports two types of RTD. PT100 (platinum sensor, 100Ω at 0°C). For three wire
RTDs, connect the resistive leg and the common legs of the RTD as illustrated. For a two
wire RTD a wire link should be fitted across terminals 2 & 3 (in place of the third wire). Two
wire RTDs should only be used when the leads are less than 3 metres long. Avoid cable
joints.
Figure 12. Input 1 - RTD Connections
Four wire RTDs can be used, provided that the fourth wire is left unconnected. This wire
should be cut short or tied back so that it cannot contact any of the terminals on the rear of
the instrument.
Pro-EC44 Product Manual - 59540-1 October 2013 Page 16
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Universal Input 1 Connections - Linear Volt, mV or mA input
The input supports the following linear/analogue signals: 0 to 50mV; 10 to 50mV; 0 to 5V; 1
to 5V; 0 to 10V; 2 to 10V; 0 to 20mV; 4 to 20mA from any suitable source. Voltage & millivolt
signals are connected to terminals 2 & 3, milliamp signals are connected to 1 & 3. Carefully
observe the position & polarity of the connections.
Figure 13. Input 1 - DC Volt, mV & mA Connections
Universal / Auxiliary Input 2 Connections
An Auxiliary Input 2 option is fitted to some models. This can connect to a potentiometer;
analogue mA; mV or V DC signal for a remote setpoint input signal, or for flow/valve position
feedback information.
Alternatively, a second Universal Input 2 option may be fitted. In addition to the remote
setpoint input signal or feedback information possible with the auxiliary input, the 2nd
Universal Input can be used as a second process control loop for two control loops, or used
in conjunction with input one in more complex single control loops. Universal Input 2 can be
connected to thermocouples; resistance temperature detectors; potentiometers; analogue
mA; mV or V DC signals.
The settings are in the Input 2 Configuration sub-menu. Connections for the various types
are shown below. Ensure that the signal is correctly connected, paying particular attention to
the polarity.
Universal Input 2 Connections - Thermocouple (T/C)
The optional 2nd universal input, supports various thermocouple types. Supported types &
ranges are listed in the input specifications section on page 245.
Only use the correct thermocouple wire or compensating cable from the sensor to the
instrument terminals avoiding joints in the cable if possible. Where joints are made, special
thermocouple connectors must be used. Failure to use the correct wire type and connectors
will lead to inaccurate readings. Ensure correct polarity of the wires by cross-referencing the
colours with a thermocouple reference table.
Figure 14. Input 2 - Thermocouple Connections
Pro-EC44 Product Manual - 59540-1 October 2013 Page 17
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Universal Input 2 Connections – PT100 / NI120 (RTD) input
The optional 2nd universal input, supports two types of RTD. PT100 (platinum sensor, 100Ω
at 0°C). For three wire RTDs, connect the resistive leg and the common legs of the RTD as
illustrated. For a two wire RTD a wire link should be fitted across terminals 35 & 36 (in place
of the third wire). Two wire RTDs should only be used when the leads are less than 3 metres
long. If possible, avoid cable joints.
Figure 15. Input 2 - RTD Connections
Four wire RTDs can be used, provided that the fourth wire is left unconnected. This wire
should be cut short or tied back so that it cannot contact any of the terminals on the rear of
the instrument.
Universal / Auxiliary Input 2 Connections - Linear Volt, mV or mA input
The optional auxiliary or 2nd universal input supports the following linear/analogue signals: 0
to 50mV; 10 to 50mV; 0 to 5V; 1 to 5V; 0 to 10V; 2 to 10V; 0 to 20mV; 4 to 20mA from any
suitable source. Voltage & millivolt signals are connected to terminals 2 & 3, milliamp signals
are connected to 1 & 3. Carefully observe the polarity of the connections.
Figure 16. Input 2 - DC Volt, mV & mA Connections
Universal / Auxiliary Input 2 Connections – Potentiometer
The optional auxiliary or 2nd universal input, the terminals detailed below can be used to
connect a feedback potentiometer. Minimum potentiometer resistance is ≥100Ω.
Figure 17. Input 2 - Potentiometer Connections
Pro-EC44 Product Manual - 59540-1 October 2013 Page 18
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Base Option 1
Base Option 1 provides one or two factory fitted outputs. A relay designated as Output 4 is
fitted on all models, and an optional linear mA/V DC designated as Output 6. Base options
cannot be added after manufacture. The functions of outputs 4 & 6 are set in the Output
Configuration sub-menu. Connect as illustrated below.
Base Option 1 Relay Output 4
Present on all instruments, Output 4 is a SPST relay, rated at 2 amps at 240 VAC resistive. If
it is used to switch mains voltages, the supply should be separate from the instrument supply
and should be correctly switched and fused.
Figure 18. Relay Output 4 Connections
Base Option 1 Linear Output 6
Part of base option 1, Output 6 is an optional linear mV/V DC analogue output. The type &
range are selectable from 0 to 5, 0 to 10, 2 to 10V & 0 to 20 or 4 to 20mA.
Figure 19. Linear Output 6 Connections
Base Option 2
Base Option 2 provides one or two factory fitted outputs. An optional relay designated as
Output 5, and an optional linear mA/V DC designated as Output 7. Base options cannot be
added after manufacture. The functions of outputs 5 & 7 are set in the Output Configuration
sub-menu. Connect as illustrated below.
Base Option 2 Relay Output 5
Part of base option 2, Output 5 is a SPST relay, rated at 2 amps at 240 VAC resistive. If it is
used to switch mains voltages, the supply should be separate from the instrument supply and
should be correctly switched and fused.
Figure 20. Relay Output 5 Connections
Pro-EC44 Product Manual - 59540-1 October 2013 Page 19
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Base Option 2 Linear Output 7
Part of base option 2, Output 7 is an optional linear mV/V DC analogue output. The type &
range are selectable from 0 to 5, 0 to 10, 2 to 10V & 0 to 20 or 4 to 20mA.
.
Figure 21. Linear Output 7 Connections
Plug-in Module Slot 1 Connections
A selection of plug-in modules are available for Module Slot 1. They can be fitted during
manufacture, or purchased and fitted later by the user. Modules in slot 1 are designated
Output 1. They are not interchangeable with those in slot 2 or 3. Their function is set in the
Output Configuration sub-menu. Connect as illustrated below.
Plug-in Module Slot 1 – Single Relay Output Module
If fitted with a single relay output module, connect as shown. The relay contacts are SPDT
and rated at 2 amps resistive, 240 VAC. If it is used to switch mains voltages, the supply
should be separate from the instrument supply and should be correctly switched and fused.
Figure 22. Plug-in Module Slot 1 – Single Relay Module
Plug-in Module Slot 1 – Single SSR Driver Output Module
If fitted with a single SSR Driver output module, connect as shown. The 10V DC pulse signal
(load ≥500 ohms) is isolated from all inputs/outputs except other SSR drivers.
Figure 23. Plug-in Module Slot 1 – Single SSR Driver Module
Pro-EC44 Product Manual - 59540-1 October 2013 Page 20
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Plug-in Module Slot 1 - Triac Output Module
If fitted with a triac output module, connect as shown. This output is rated at 0.01 to 1 amp @
280V AC 50/60Hz. Isolated from all other inputs and outputs. A snubber should be fitted
across inductive loads to ensure reliable switch off of the Triac.
Figure 24. Plug-in Module Slot 1 - Triac Module
Plug-in Module Slot 1 - Linear Voltage or mADC Output module
If fitted with a DC linear output module, connect as shown. Output type & range are
selectable from 0 to 5, 0 to 10, 2 to 10V & 0 to 20 or 4 to 20mA. Isolated from all other inputs
and outputs.
Figure 25. Plug-in Module Slot 1 - Linear Voltage & mADC Module
Plug-in module slot 2 Connections
A selection of plug-in modules are available for Module Slot 2. They are interchangeable with
slot 3, but not slot 1.They can be fitted during manufacture, or purchased and fitted later by
the user. Modules in slot 2 are designated Output 2, and for dual modules Output 2A and 2B.
Their functions are set in the Output Configuration sub-menu. Connect as illustrated below.
Plug-in Module Slot 2 – Single Relay Output Module
If fitted with a single relay output module, connect as shown. The relay contacts are SPDT
and rated at 2 amps resistive, 240 VAC. If it is used to switch mains voltages, the supply
should be separate from the instrument supply and should be correctly switched and fused.
Figure 26. Plug-in Module Slot 2 – Single Relay Module
Pro-EC44 Product Manual - 59540-1 October 2013 Page 21
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Plug-in Module Slot 2 - Dual Relay Output Module
If fitted with a dual relay output module, connect as shown. This module has two independent
SPST relays for outputs 2A and 2B, with a shared common terminal. The contacts are rated
at 2 amp resistive 240 VAC. If used to switch mains voltages, the supply should be separate
from the instruments mains supply and the contacts should be correctly switched and fused.
Figure 27. Plug-in Module Slot 2 - Dual Relay Module
Plug-in Module Slot 2 – Single SSR Driver Output Module
If fitted with a single SSR Driver output module, connect as shown. The 10V DC pulse signal
(load ≥500 ohms) is isolated from all inputs/outputs except other SSR drivers.
Figure 28. Plug-in Module Slot 2 – Single SSR Driver Module
Plug-in Module Slot 2 – Dual SSR Driver Output Module
If fitted with a dual SSR Driver output module, the two solid-state relay driver outputs are
designated as Output 2A and 2B. The outputs are 10V DC pulse signals, (load ≥500 ohms).
They are isolated from all inputs/output except other SSR driver outputs. Connect as shown
making note of the shared positive common terminal.
Figure 29. Plug-in Module Slot 2 – Dual SSR Driver Module
Pro-EC44 Product Manual - 59540-1 October 2013 Page 22
Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Plug-in Module Slot 2 - Triac Output Module
If fitted with a Triac output module, connect as shown. This output is rated at 0.01 to 1 amp
@ 280V AC 50/60Hz. Isolated from all other inputs and outputs. A snubber should be fitted
across inductive loads to ensure reliable switch off of the Triac.
Figure 30. Plug-in Module Slot 2 - Triac Module
Plug-in Module Slot 2 - Transmitter Power Supply Module
If fitted with a transmitter power supply module (TxPSU), connect as shown. The output is a
24V nominal (unregulated, 19 to 28V DC), supply at 22mA max. Only one TxPSU is
supported, do not fit in slot 2 if one is already fitted in slot 3.
Figure 31. Plug-in Module Slot 2 - Transmitter Power Supply Module
Plug-in Slot 3 Connections
A selection of plug-in modules are available for Module Slot 3. They are interchangeable with
slot 2, but not slot 1.They can be fitted during manufacture, or purchased and fitted later by
the user. Modules in slot 3 are designated Output 3, and for dual modules Output 3A and 3B.
Their functions are set in the Output Configuration sub-menu. Connect as illustrated below.
Plug-in Module Slot 3 – Single Relay Output Module
If fitted with a single relay output module, connect as shown. The relay contacts are SPDT
and rated at 2 amps resistive, 240 VAC. If it is used to switch mains voltages, the supply
should be separate from the instrument supply and should be correctly switched and fused.
Figure 32. Plug-in Module Slot 3 – Single Relay Module
Pro-EC44 Product Manual - 59540-1 October 2013 Page 23
Loading...