ero electronic ELK Series User manual

ENG User Manual
Manuel Utilisateur
Guía del Usario
Manuale de uso
ELK - ETK
FRA
SPA
ITA

This booklet in ludes:
User Guide (HA028438 Issue 3)
Manuel Utilisateur (HA028438FRA Indi e 3)
Guía del Usario (HA028438SPA Edi ión 3)
Manuale de uso (HA028438ITA Edizione 3)

Part number HA028438. Issue 3.0. Oct-05 1
Contents
1. Installation and Basic Operation ..........................................................................4
1.1. What Instrument Do I Have?......................................................................................4
1.2. Unpacking and storage ..............................................................................................5
1.3. Dimensions ................................................................................................................6
1.4. Step 1: Installation....................................................................................................7
1.4.1. Panel Mounting the Controller.......................................................................................................................................7
1.4.2. Panel Cut-out Sizes.............................................................................................................................................................7
1.4.3. Recommended Minimum Spacing of Controllers. ...................................................................................................8
1.4.4. To Remove the Controller from its Sleeve .................................................................................................................8
1.5. Ordering Code (ELK and ETK) ....................................................................................9
2. Step 2: Wiring....................................................................................................11
2.1. Terminal Layout ELK Controller ............................................................................... 11
2.2. Terminal Layout ETK Controllers.............................................................................. 12
2.3. Wire Sizes ................................................................................................................ 13
2.4. Precautions.............................................................................................................. 13
2.5. Sensor Input (Measuring Input) ............................................................................... 13
2.5.1. Thermocouple Input........................................................................................................................................................13
2.5.2. RTD Input ............................................................................................................................................................................13
2.5.3. Linear mA, mV or Voltage Inputs ................................................................................................................................14
2.5.4. Two-Wire Transmitter Inputs ........................................................................................................................................14
2.6. Options 1 and 2 ....................................................................................................... 15
2.6.1. Relay Output (Form A, normally open) .....................................................................................................................15

2 Part number HA028438. Issue 3.0. Oct-05
2.6.2. Logic (SSR drive) Output................................................................................................................................................15
2.6.3. DC Output ..........................................................................................................................................................................16
2.6.4. Logic Contact Closure Input (I/O1 only) ...................................................................................................................16
2.7. Option 3 .................................................................................................................. 17
2.7.1. Relay Output (Form A, normally open) .....................................................................................................................17
2.7.2. DC Output ..........................................................................................................................................................................17
2.8. Option 4 .................................................................................................................. 18
2.8.1. Relay Output (Form C)....................................................................................................................................................18
2.9. Digital Inputs A & B ................................................................................................. 19
2.10. Transmitter Power Supply........................................................................................ 19
2.11. Current Transformer................................................................................................ 20
2.12. Digital Communications........................................................................................... 21
2.13. Controller Power Supply .......................................................................................... 22
2.14. Example Wiring Diagram.......................................................................................... 23
3. Switch On........................................................................................................... 24
3.1. New Controller ........................................................................................................ 24
3.2. To Re-Enter Quick Code Configuration Mode ........................................................... 27
3.3. Pre-Configured Controller or Subsequent Starts ...................................................... 27
3.4. Front Panel Layout................................................................................................... 28
3.4.1. To Set The Temperature (Setpoint)............................................................................................................................28
3.4.2. Auto, Manual and Off Mode.........................................................................................................................................29
3.4.3. To Select Auto, Manual or OFF Mode .......................................................................................................................30
3.4.4. Level 1 Operator Parameters ........................................................................................................................................31

Part number HA028438. Issue 3.0. Oct-05 3
4. Operator Level 2 ................................................................................................32
4.1. To Enter Level 2....................................................................................................... 32
4.2. To Return to Level 1 ................................................................................................ 32
4.2.1. Level 2 Operator Parameters ........................................................................................................................................32
4.3. Alarms ..................................................................................................................... 40
4.3.1. Alarm Indication ...............................................................................................................................................................40
4.4. Timer Operation ...................................................................................................... 41
4.4.1. Dwell Timer ........................................................................................................................................................................42
4.4.2. Delayed Timer....................................................................................................................................................................43
4.4.3. Soft Start Timer.................................................................................................................................................................44
5. General Specifications........................................................................................45
5.1. Inputs ...................................................................................................................... 46
5.2. Outputs ................................................................................................................... 47
5.3. Communication ....................................................................................................... 47
6. Safety Requirements ..........................................................................................48
☺Whenever this symbol appears it indicates a note or useful hint

4 Part number HA028438. Issue 3.0. Oct-05
1. Installation and Basic Operation
1.1. What Instrument Do I Have?
The controller may have been ordered to a hardware
code only or pre-configured using an optional ‘Quick
code’.
The label, fitted to the side of the sleeve, shows the
ordering code that the controller was supplied to.
The last two sets of five digits show the Quick Code.
If the Quick Code shows *****/***** the controller
was supplied with default parameters and it will need
to be configured when it is first switched on. This is
described in section 3 of this User Guide.
For special features not covered in this User Guide, a detailed Engineering Manual, Part No HA029065, and other
related handbooks can be downloaded from www.eroelectronic.com
Label showing
ordering code
and serial
number

Part number HA028438. Issue 3.0. Oct-05 5
1.2. Unpacking and storage
The following items are included in the box:
•Controller mounted in its sleeve
•Two panel retaining clips
•An IP65 sealing gasket mounted on the sleeve
•Component packet containing a snubber for
each relay output and a 2.49Ωresistor for
current inputs (see section 2)
•This User Guide
If on receipt, the packaging or the instrument is
damaged, do not install the product but contact your
supplier.
If the instrument is to be stored before use, protect
from humidity and dust in an ambient temperature
range of -10oC to +70oC.

6 Part number HA028438. Issue 3.0. Oct-05
1.3. Dimensions
General views of the controllers are shown below together with overall dimensions.
IP65 Sealing Gasket Panel retaining clip
Latching ears
48mm
(1.89in)
90mm (3.54in)
1.25mm (0.5in)
Panel retaining clip
Model EL
K
Side View
Model ETK
48mm
(1.89in)
96mm
(3.78in)
90mm (3.54in)
48mm
(1.89in)
Top View

Part number HA028438. Issue 3.0. Oct-05 7
1.4. Step 1: Installation
This controller is intended for permanent
installation, for indoor use only, and enclosed in an
electrical panel
Select a location which is subject to minimum
vibrations and the ambient temperature is within 0
and 55oC (32 - 131oF)
The controller can be mounted on a panel up to
15mm thick
To ensure IP65 and NEMA 4 front sealing against
dust and water, mount on a non-textured surface.
1.4.1. Panel Mounting the Controller
1. Prepare a cut-out in the mounting panel to the
size shown. If a number of controllers are to be
mounted in the same panel observe the
minimum spacing shown.
2. Fit the IP65 sealing gasket behind the front
bezel of the controller
3. Insert the controller through the cut-out
4. Spring the panel retaining clips into place.
Secure the controller in position by holding it
level and pushing both retaining clips forward.
5. Peel off the protective cover from the display
1.4.2. Panel Cut-out Sizes
.
45 mm
- 0.0 + 0.6
1.77 inch
-0.00, +0.02
Model EL
K
92 mm
- 0.0 + 0.8
3.62 inch
-0.00, +0.03
Model ET
K
45 mm - 0.0 + 0.6
1.77 inch -0.00, +0.02

8 Part number HA028438. Issue 3.0. Oct-05
1.4.3. Recommended Minimum Spacing of
Controllers.
Applies to all Model sizes
1
1.4.4. To Remove the Controller from its
Sleeve
The controller can be unplugged from its sleeve by
easing the latching ears outwards and pulling it
forward out of the sleeve. When plugging it back
into its sleeve, ensure that the latching ears click
back into place to maintain the IP65 sealing.
10mm (0.4 inch)
38mm (1.5 inch)
(Not to scale)

Part number HA028438. Issue 3.0. Oct-05 9
1.5. Ordering Code (ELK and ETK)
The following tables define the hardware fitted:-
Model Function Power Supply Option 1
(OP1)
Option 2
(OP2)
Option 3
(OP3)*
Option 4
(OP 4)
ELK 3 PID
On/Off
3 100-
240Vac
0 Not
fitted
0 Not
fitted
0 Not fitted 0 Not
fitted
ETK 5 Motorised
Valve
5 20 - 29V
ac/dc
1 Relay
(form
A)
1 Relay
(form
A)
1 Relay
(form A)
1 Relay
(form
C)
5 Logic
I/O *
6 Logic
I/O
(SSR) *
7 Linear
output
(0-
20mA)
*
7 Linear
output *
7 Linear
output
isolated
(*) These outputs are not electrically isolated from the measurement input

10 Part number HA028438. Issue 3.0. Oct-05
CT+Logic IP Comms Language
0 Not fitted 0 Not fitted E English
1 CT + Logic IP 1 RS232 + 2nd Logic IP I Italian
2 RS485 + 2nd Logic IP G German
F French
S Spanish
Available OP1, OP2 option combinations ELK:- 0-0; 0-1; 0-2; 1-0; 1-1; 1-2 respectively.
Available OP1, OP2, OP3 option combinations ETK:- 1-1-0; 1-1-1; 5-0-0; 5-6-0; 5-1-1; 5-6-1; 5-6-7;
5-1-7; 5-7-7; 1-1-7; 7-1-7; 7-7-7 respectively.
OP 3 options are only available on model ETK

Part number HA028438. Issue 3.0. Oct-05 11
2. Step 2: Wiring
2.1. Terminal Layout ELK Controller
Warning
Ensure that you have the correct supply for your controller
Check order code of the controller supplied
Key to symbols used in the wiring diagrams
Logic (SSR drive) Relay (form C) Current transformer input
mA analogue output Contact input Relay (form A)
COM
A(+)
B(-)
Digital Communications
RS232 or RS485
Output 4
Changeover relay
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 -
+
T/C
m
V
+
-
Sensor
Input
Pt100
2.49Ω
mA
-
+
+ +
- -
+ +
- -
Line Supply 100 to 240Vac 50/60Hz
OR
Low Voltage Supply 24Vac/dc
Input/Output 1
Output 2
CT input & Digital input A

12 Part number HA028438. Issue 3.0. Oct-05
2.2. Terminal Layout ETK Controllers
Warning
Ensure that you have the correct supply for your controller
Check order code of the controller supplied
Digital Communications
RS232 or RS485
Output 4
Changeover Relay
Line Supply 85 to 264Vac 50/60Hz
OR
Low Voltage Supply 24Vac/dc
CT input
+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
COM
A(+)
B(-)
-
+
T/C m
V
-
Sensor
Input
Pt100
2.49Ω
mA
-
+
+ +
- -
+ NO
- C
+
24V
-
Input/Output 1
+ +
- -
Output 2
Digital Input B
Output 3
24V Transmitter Supply
Digital input A

Part number HA028438. Issue 3.0. Oct-05 13
2.3. Wire Sizes
The screw terminals accept wire sizes from 0.5 to 1.5
mm (16 to 22AWG). Hinged covers prevent hands or
metal making accidental contact with live wires. The
rear terminal screws should be tightened to 0.4Nm
(3.5lb in).
2.4. Precautions
•Do not run input wires together with power cables
•When shielded cable is used, it should be grounded
at one point only
•Any external components (such as zener barriers)
connected between sensor and input terminals may
cause errors in measurement due to excessive
and/or un-balanced line resistance, or leakage
currents.
•Not isolated from the logic outputs & digital inputs
•Pay attention to line resistance; a high line
resistance may cause measurement errors
2.5. Sensor Input (Measuring Input)
Includes thermocouple, platinum resistance
thermometer, mA, mV and volts.
2.5.1. Thermocouple Input
•Use the correct compensating cable preferably
shielded.
2.5.2. RTD Input
•The resistance of the three wires must be the same.
•The line resistance may cause errors if it exceeds
22Ω.
Positive
Negative
ELK model
-
+
5
6
Positive
Negative
ETK model
-
+
11
12
ELK model
4
5
6
ETK model
10
11
12

14 Part number HA028438. Issue 3.0. Oct-05
2.5.3. Linear mA, mV or Voltage Inputs
•For a mA input connect the 2.49Ωburden resistor
supplied between the V+ and V- terminals as shown
•For a 0-10Vdc input an external input adapter is
required (not supplied). Part number: SUB21/IV10
2.5.4. Two-Wire Transmitter Inputs
+
mA mV input
-
-
2.49Ω
+
ELK model
5
6
Shield
-
2.49Ω
+
ETK model
11
12
+
mA mV input
-
Shield
100KΩ
806Ω
+
0-10V
Input
-
+
-
ELK model
Using external power supply
+
-
External power
supply
-
+
5
6 2-Wire
Transmitter
-
+
2.49Ω
ETK model
Using internal power supply
-
+
11
12
21
22 -
+
2-Wire
Transmitter
-
+
2.49Ω

Part number HA028438. Issue 3.0. Oct-05 15
2.6. Options 1 and 2
Option 1 may be configured as input or output.
Outputs can be logic (SSR drive), or relay, or mAdc.
Input is contact closure.
2.6.1. Relay Output (Form A, normally open)
•Isolated output 240Vac CATII
•Contact rating: 2A 264Vac resistive
100mA 12Vdc minimum
•Output functions: Heating, or cooling, or alarm , or
motorised valve open or closed
2.6.2. Logic (SSR drive) Output
•Not isolated from the sensor input
•Output ON state: 12Vdc at 44mA max
•Output OFF state: <300mV, <100µA
•Output functions: Heating, or cooling, or alarm, or
motorised valve open or closed
•The output switching rate must be set to prevent
damage to the output device in use. See
parameter 1.PLS or 2.PLS in the level 2
parameter section 4.2.1
ELK model ETK model
OP1
7
8
OP2
9
10
OP1
13
14
OP2
15
16
-
ELK model
+
OP1 OP2
7
8
+
-
9
10
ETK model
+
-
OP1 OP2
13
14
+
-
15
16

16 Part number HA028438. Issue 3.0. Oct-05
2.6.3. DC Output
•Not isolated from the sensor input
•Software configurable: 0-20mA or 4-20mA.
•Max load resistance: 500Ω
•Cal. accuracy: +(<1% of reading + <100µA)
•Output functions: Heating, or cooling, or
retransmission.
2.6.4. Logic Contact Closure Input (I/O1 only)
•Not isolated from the sensor input
•Switching: 12Vdc at 40mA max
•Contact open > 500Ω. Contact closed < 150Ω
•Input functions: Please refer to the list in the Quick
Start codes.
ETK model
+
-
OP1 OP2
13
14
+
-
15
16
ELK model
+
-
OP1 OP2
7
8
+
-
9
10
ELK model
OP1
7
8
ETK model
OP1
13
14

Part number HA028438. Issue 3.0. Oct-05 17
2.7. Option 3
Option 3 is available only in the model ETK. It will
be either a relay or a mA output.
2.7.1. Relay Output (Form A, normally open)
•Isolated output 240Vac CATII
•Contact rating: 2A 264Vac resistive.
100mA 12Vdc minimum
•Output functions: Heating, or cooling, or alarm.
2.7.2. DC Output
•Isolated output 240Vac CATII
•Software configurable: 0-20mA or 4-20mA
•Max load resistance: 500Ω
•Cal. accuracy: +(<0.25% of reading + <50µA)
•Output functions: Heating, or cooling, or
retransmission.
OP3
19
20
+
OP3
19
20
-

18 Part number HA028438. Issue 3.0. Oct-05
2.8. Option 4
This is always a changeover relay output.
2.8.1. Relay Output (Form C)
•Isolated output 240Vac CATII
•Contact rating: 2A 264Vac resistive
100mA 12Vdc minimum
•Output functions: Heating, or cooling, or alarm.
* General Notes about Relays and Inductive
Loads
High voltage transients may occur when switching
inductive loads such as some contactors or solenoid
valves. Through the internal contacts, these transients
may introduce disturbances which could affect the
performance of the instrument.
For this type of load it is recommended that a
‘snubber’ is connected across the normally open
contact of the relay switching the load. The snubber
recommended consists of a series connected
resistor/capacitor (typically 15nF/100Ω). A snubber
will also prolong the life of the relay contacts.
WARNING
When the relay contact is open, or it is connected
to a high impedance load, it passes a current
(typically 0.6mA at 110Vac and 1.2mA at 240Vac).
You must ensure that this current will not hold on
low power electrical loads. If the load is of this
type the snubber should not be connected.
OP4
1
2
3