Omega Products CN3420 Installation Manual
User’s Guide
http://www.omega.com
e-mail: info@omega.com
CN3420 SERIES
1/4 DIN Panel Mount
Universal T emperature & Pr ocess
Controller
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship
for a period of 37 months from date of purchase. OMEGA Warranty adds an additional one (1)
month grace period to the normal three (3) year product warranty to cover handling and
shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written
request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or
replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of
the purchaser, including but not limited to mishandling, improper interfacing, operation outside of
design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit
shows evidence of having been tampered with or shows evidence of having been damaged as a
result of excessive corrosion; or current, heat, moisture or vibration; improper specification;
misapplication; misuse or other operating conditions outside of OMEGA’s control. Components
which wear are not warranted, including but not limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information
provided by OMEGA, either verbal or written. OMEGA warrants only that the parts
manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER
WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth
herein are exclusive, and the total liability of OMEGA with respect to this order, whether
based on contract, warranty, negligence, indemnification, strict liability or otherwise,
shall not exceed the purchase price of the component upon which liability is based. In
no event shall OMEGA be liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a
“Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or
(2) in medical applications or used on humans. Should any Product(s) be used in or with any
nuclear installation or activity, medical application, used on humans, or misused in any way,
OMEGA assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language,
and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability
or damage whatsoever arising out of the use of the Product(s) in such a manner.
RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN
ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the
outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.
FOR WARRANTY
RETURNS, please have the
following information available BEFORE
contacting OMEGA:
1. Purchase Order number under which the
product was PURCHASED,
2. Model and serial number of the product
under warranty, and
3. Repair instructions and/or specific problems
relative to product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible.
This affords our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 1998 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied,
photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in
whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
FOR NON-WARRANTY REPAIRS,
OMEGA for current repair charges. Have the
following information available BEFORE
contacting OMEGA:
1. Purchase Order number to cover the COST of
the repair,
2. Model and serial number of the products, and
3. Repair instructions and/or specific problems
relative to the product.
consult
GETTING STARTED
This manual is divided into 5 sections which contain all the information needed to
install, configure, set up and operate the instrument. Each section is identified
clearly by a symbol as shown below.
Displays and Function Keys
• Displays and function keys
• LED Indication
• Error Messages
Operator Mode (Level 1)
• Operator menus for:
– Standard controller
– Heat/Cool controller
– Remote Set Point controller
8
– Profile controller
– Multiple Fixed Set Points controller
• Auto-tuning
Set Up Mode (Levels 2, 3 and 4)
• Level 2 – Tuning
• Level 3 – Set Points
• Level 4 – Profile
Configuration Mode (Levels 5 and 6)
• Level 5 – Basic hardware and control
functions
• Level 6 – Ranges and passwords
Installation
• Siting
• Mounting
• Electrical connections
Symbol Identification and Section Contents
1
CONTENTS
1 DISPLAYS AND FUNCTION KEYS ............................................................. 3
1.1 Introduction.......................................................................................... 3
1.2 LED Alarms and Indicators ................................................................. 4
1.3 Use of Function Keys .......................................................................... 6
1.4 Error Messages ................................................................................... 7
2 OPERATOR MODE ...................................................................................... 8
2.1 Introduction.......................................................................................... 8
2.2 Standard Controller ............................................................................. 9
2.3 Heat/Cool Controller.......................................................................... 10
2.4 Remote Set Point Controller ............................................................. 12
2.5 Profile Controller ...............................................................................14
2.6 Multiple Fixed Set Points Controller ................................................. 16
2.7 Auto-tune ........................................................................................... 18
3 SET UP MODE ............................................................................................ 20
3.1 Introduction........................................................................................ 20
3.2 Tuning (Level 2) ................................................................................ 20
3.3 Set Points (Level 3)........................................................................... 24
3.4 Profile (Level 4) ................................................................................. 27
4 CONFIGURATION MODE .......................................................................... 30
4.1 Introduction........................................................................................ 30
4.2 Accessing the Configuration Mode................................................... 32
4.3 Basic Hardware and Configuration (Level 5) ................................... 32
4.4 Ranges and Passwords (Level 6)..................................................... 42
5 INSTALLATION .......................................................................................... 46
5.1 Siting .................................................................................................. 46
5.2 Mounting ............................................................................................ 48
5.3 Removing the Instrument from the Case.......................................... 50
5.4 Electrical Connections ...................................................................... 51
5.5 Relays, Arc Suppression and Outputs ............................................. 51
Information.
The fold-out page inside on the back cover of this
manual shows all the frames in the programming
levels. Space is provided on the page for writing the
programmed setting or selection for each frame.
2
1 DISPLAYS AND FUNCTION KEYS
1.1 Introduction – Fig. 1.1
The instrument front panel displays, function keys and LED indicators are shown in
Fig. 1.1.
Upper Display
Output Value
LEDs
(invisible
when off)
Alarm LEDs
OP1
OP2
8888
8888
A1 A2 R M
°C
°F
Units of
measure
indication
(invisible when
off)
Lower
Display
Manual Control
LED
Remote Set Point
LED
Function Keys
Raise
Lower
Auto/Manual
Parameter Advance
Fig. 1.1 Front Panel Displays, Function Keys and Indicators
3
…1 DISPLAYS AND FUNCTION KEYS
1.2 LED Alarms and Indicators – Figs. 1.2 and 1.3
°C
8888
OP1
OP2
A1
A2
LED Status
All • All LEDs flashing – controller is in the configuration mode.
8888
A1 A2 R M
°F
M
R
A1 • Flashes when Alarm 1 is active (off when inactive).
A2 • Flashes when Alarm 2 is active (off when inactive).
R • On when the controller is operating on the remote set point value.
• Off when the controller is operating using the local set point
value or one of the four fixed set points (in multiple set point mode).
• Flashes when a Ramp/Soak profile is running.
M • On when the controller is operating in Manual control mode.
• Off when the controller is operating in Auto control mode.
• Flashes when the controller is performing an auto-tune.
Fig. 1.2 LED Alarms and Indicators
4
1 DISPLAYS AND FUNCTION KEYS…
…1.2 LED Alarms and Indicators – Figs. 1.2 and 1.3
Output 1 LED
Output 2 LED
LED Status
OP1
OP2
8888
8888
A1 A2 R M
°C
°C units of measure
°F
°F units of measure
OPI • LED indicates when the output 1 (heat) value is displayed
in the lower display.
OP2 • LED indicates when the output 2 (cool) value is displayed
in the lower display.
°C • LED indicates when the controller is configured to measure
in degrees Celsius.
°F • LED indicates when the controller is configured to measure
in degrees Fahrenheit.
Fig. 1.3 LED Indicators
5
…1 DISPLAYS AND FUNCTION KEYS
1.3 Use of Function Keys – Fig. 1.4
A – Raise and Lower Keys
bIAS
50.0
Use to change/set a parameter value… …move between levelsand…
B – Parameter Advance Key
51.0
49.0
+
–
LEV2
Frame 1
(top of level)
tUnE
CYCl
Frame 2
5.0
Use to advance to the next frame
within a level…
and…
LEV2
tUnE
LEV1
OPEr
LEVx
1001
1002
Press and hold
1003
…select the top (LEVEL) frame
from within a level
Note. This key also stores any changes made in the previous frame
C – Auto/Manual Key
Process Variable
Control Set Point
6
Auto
M
125.2
125.8
Use to select Auto or Manual control mode
Fig. 1.4 Use of Function Keys
Manual
M
125.2
70
Illuminated
Process Variable
Control Output (%)
1 DISPLAYS AND FUNCTION KEYS…
1.4 Error Messages
Display Error/Action
CAL
Err
CnFG
Err
A-d
Err
Calibration error
Turn power off and on again (if the
error persists contact the Supplier).
Configuration error
The configuration and/or set up
data for the instrument is corrupted.
Turn power off and on again (if the
error persists, check configuration/
set up settings).
A to D Converter Fault
The analog to digital converter is
not communicating correctly.
To Clear Display
Press the
Press the
Turn power off and
on again. If error
persists, contact the
key
key
9999
70
125.2
70
OPtn
Err
Process Variable Over/Under
Range
Remote Set Point Over/Under
Range
The remote set point value is over
or under range. Flashing stops
automatically when the remote set
point input comes back into range.
Option error
Communications to the option
board have failed.
Supplier
Restore valid input
Select the local set
point
the Operating Page
or the Set Points
Level
Contact the
Supplier
(rSP.n) in
t.Err
1
Auto-tune error
The number displayed indicates the
type of error present – see Table 2.1
in Section 2.7.
Press any key
7
2 OPERATOR MODE
2.1 Introduction
Operator Mode (Level 1) is the normal day-to-day mode of the instrument.
Frames displayed in Level 1 are determined by the control strategy which is
selected during configuration of the instrument – see Section 4.
Note. Only the operating frames relevant to the configured strategy are
displayed in Operator Mode.
The five control strategies are:
• Standard controller – page 9
• Heat/Cool controller – page 10
• Remote Set Point controller – page 12
• Profile controller – page 14
• Multiple Fixed Set Points controller – page 16
8
2.2 Standard Controller
2 OPERATOR MODE…
Auto
Man
•1
125.2
125.8
125.2
70
SPrP
120.5
OP1
Process Variable Value
Control Set Point Value (Local set point)
[Set point low limit to set point high limit]
Process Variable Value
Control Output Value (%)
[0 to 100% (–10% to 110% for analog output)]
Adjustable in manual mode only.
Ramping Set Point Value (Read only)
The actual set point value is displayed, i.e. the
instantaneous value the controller is working to.
CodE
0
AtnE
OFF
LEV1
OPEr
Security Code
[0 to 9999]
Select the appropriate security code to access:
Auto-tune enable frame (Level 1),
Set Up mode (Levels 2, 3, 4).
Auto-tune Enable
ON – Auto-tune on
OFF – Auto-tune off
Refer to page 16 for the Auto-tune procedure.
Level 1 (Operator mode)
Refer to Section 3 for Levels 2, 3 and 4.
LEV2
LEV3
SEtPtUnE
LEV4
PrFL
•1 Not displayed if the ramping set point facility is turned off – refer to
Section 3.3.
9
…2 OPERATOR MODE
2.3 Heat/Cool Controller
Auto
Man
•1
125.2
125.8
125.2
70
125.2
-30
SPrP
120.5
OP1 (Heat)
OP2 (Cool)
Process Variable Value
Control Set Point Value (Local set point)
[Set point low limit to set point high limit]
Process Variable Value
Control Output Value (Heat %)
[0% to 100% (0% to 110% for analog output)]
If adjusted below 0% the 'Cool' frame is displayed.
Control Output 2 Value (Cool %)
[0% to –100% (0% to –110% for analog output)]
If adjusted above 0% the 'Heat' frame is displayed.
Ramping Set Point Value (Read only)
The actual set point value is displayed, i.e. the
instantaneous value the controller is working to.
CodE
0
•1 Not displayed if the ramping set point facility is turned off – refer to
Section 3.3.
Continued on next page.
10
…2.3 Heat/Cool Controller
Security Code
CodE
0
AtnE
OFF
[0 to 9999]
Select the appropriate security code to access:
Auto-tune enable frame (Level 1),
Set Up mode (Levels 2, 3, 4).
Auto-tune Enable
ON – Auto-tune on
OFF – Auto-tune off
Refer to page 16 for the Auto-tune procedure.
2 OPERATOR MODE…
LEV1
OPEr
Level 1 (Operator mode)
See Section 3 for Levels 2, 3 and 4.
LEV2
LEV3
SEtPtUnE
LEV4
PrFL
11
…2 OPERATOR MODE
2.4 Remote Set Point Controller
Auto
Man
125.2
125.8
125.2
70
rSPn
rSPn
123.4
123.4
OP1
Process Variable Value
Control Set Point Value
[Set point low to set point high limit]
Adjustable in local Set Point Mode only.
Process Variable Value
Control Output Value (%)
[0% to 100% (–10% to 110% for analog output)]
Adjustable in manual mode only.
Remote Set Point Selection
rSPY – Remote Set Point
rSPn – Local Set Point
Local or remote set point can also be selected using
a digital input.
The option to change the set point selection at this
frame can be disabled in the configuration level.
Remote Set Point Value (read only)
SPrP
120.5
Note.
If the remote set point input fails while selected, the controller selects the local
set point value automatically. The upper display changes to
lower display flashes. When the fault condition is removed, the remote set point
is re-selected automatically. To clear the error condition while the remote set
point input is still outside its allowed range, select the local set point by pressing
Continued on next page…
rSP.F and the
12
the
key (rSP.n is displayed).
2 OPERATOR MODE…
…2.4 Remote Set Point Controller
•1
SPrP
120.5
CodE
0
AtnE
OFF
Ramping Set Point Value (Read only)
The actual set point value is displayed, i.e. the
instantaneous value the controller is working to.
Security Code
[0 to 9999]
Select the appropriate security code to access:
Auto-tune enable frame (Level 1),
Set Up mode (Levels 2, 3, 4).
Auto-tune Enable
ON – Auto-tune on
OFF – Auto-tune off
Refer to page 16 for the Auto-tune procedure.
LEV1
Level 1 (Operator mode)
See Section 3 for Levels 2, 3 and 4.
OPEr
•1 Not displayed if the ramping set point facility is turned off – refer to
Section 3.3.
LEV2
LEV3
SEtPtUnE
LEV4
PrFL
13
…2 OPERATOR MODE
2.5 Profile Controller
Auto
Man
125.2
125.8
125.2
70
SG 1
StoP
OP1
Process Variable Value
Control Set Point Value
[Set point low limit to set point high limit]
Process Variable Value
Control Output Value (%)
[0% to 100% (–10% to 110% for analog output)]
Adjustable in manual mode only.
Profile Segment Number (1 to 4) currently active
Profile Status
SG 1
StoP
SG 1
run
SG 1
HOLd
StOP – Profile inactive – the control set point
is equal to the local set point value
when the profile is not running.
run – Profile active – currently operating on
the segment indicated.
HOLD – Profile hold – pauses the current ramp
or soak mode by putting it into 'Hold'
mode. The guaranteed ramp soak
feature can also be used to put the profile
into a 'Hold' mode until the process
variable comes back within the
hysteresis band.
Note. The profile status can be changed using
a digital input.
14
SPrP
120.5
Continued on next page…
…2.5 Profile Controller
2 OPERATOR MODE…
•1
SPrP
120.5
CodE
0
AtnE
OFF
Ramping Set Point Value (Read only)
The actual set point value is displayed, i.e. the
instantaneous value the controller is working to.
Security Code
[0 to 9999]
Select the appropriate security code to access:
Auto-tune enable frame (Level 1),
Set Up mode (Levels 2, 3, 4).
Auto-tune Enable
ON – Auto-tune on
OFF – Auto-tune off
Refer to page 16 for the Auto-tune procedure.
Level 1 (Operator mode)
LEV1
OPEr
•1 Not displayed if the ramping set point facility is turned off – refer to
Section 3.3.
See Section 3 for Levels 2, 3 and 4.
LEV2
LEV3
SEtPtUnE
LEV4
PrFL
15
…2 OPERATOR MODE
2.6 Multiple Fixed Set Points Controller
If the Multiple Fixed Set Points Controller type is selected during configuration, four
fixed control set points can be set – see Section 4.4.
Auto
125.2
125.8
Process Variable Value
Fixed Control Set Point Selected
SP-1
100.3
Notes.
a) The top display momentarily displays the set
point selected before reverting to the display
of the process variable value.
b) A digital input can also be used to select the
fixed set points.
SP-2
200.1
SP-3
300.2
SP-4
400.5
125.2
Process Variable Value
Man
70
OP1
•1
SPrP
12.05
CodE
0
•1 Not displayed if the ramping set point facility is turned off – refer to
Control Output Value (%)
[0% to 100% (–10% to 110% for analog output)]
Adjustable in manual mode only.
Ramping Set Point Value (Read only)
The actual set point value is displayed, i.e. the
instantaneous value the controller is working to.
Continued on next page…
16
Section 3.3.
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