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YOKOGAWA
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SKYD-3
User Manual
66 pgs2.9 Mb0
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YOKOGAWA SKYD-3, SKYD-2, SKYD-1 User Manual

User ’s Manual
Model SKYD (Style S) Alarm Unit
Yokogawa Electric Corporation
IM 01B04K01-02E
11th Edition
Contents
Chapter 1 Introduction
1.1 Inspection ............................................................................................................................ 1-2
1.2 Documentation Conventions ............................................................................................... 1-3
1.3 Notice .................................................................................................................................. 1-4
1.4 Compatibility with Previous Models .....................................................................................1-5
Chapter 2 General
2.1 Standard Specifications ......................................................................................................2-2
2.2 Model and Suffix Codes ......................................................................................................2-3
2.3 Accessories ......................................................................................................................... 2-4
1
1
2
2
3
3
App
4
Chapter 3 Installation
3.1 External Wiring .................................................................................................................... 3-2
3.2 Example of Alarm Wiring .....................................................................................................3-3
3.2.1 High-limit and High-high-limit Alarms .....................................................................................3-3
3.2.2 Three-position Alarm .............................................................................................................. 3-3
Chapter 4 Principles of Operation
4.1 Principle of Operation ..........................................................................................................4-1
4.2 Description of Functions ......................................................................................................4-2
4.2.1 SKYD-10x/20x Functions .......................................................................................................4-2
4.2.2 SKYD-30x Functions ..............................................................................................................4-5
4.3 Example of Alarm Function Setting .....................................................................................4-6
4.3.1 Condition of Alarm Function ...................................................................................................4-6
4.3.2 Parameters of Alarm Function ................................................................................................4-6
4.3.3 Operating Condition of Alarm Function ..................................................................................4-6
Chapter 5 Setting
5.1 Names of Components .......................................................................................................5-2
5.2 Setting Jumper .................................................................................................................... 5-3
5.2.1 Check of Setting Jumper and its Location ..............................................................................5-4
5.3 Setting of Parameters .........................................................................................................5-5
5.3.1 Parameter Change Disable Function .....................................................................................5-5
5.3.2 Setting of Parameters Using Display Setter (SKYD-x04) ....................................................... 5-5
5.3.3 Setting of Parameters Using Handy Terminal ........................................................................5-9
5.4 Parameter List ................................................................................................................... 5-10
5.4.1 SKYD-10x Parameter List ....................................................................................................5-10
5.4.2 SKYD-20x Parameter List ....................................................................................................5-14
5.4.3 SKYD-30x Parameter List ....................................................................................................5-19
5
6
7
8
Chapter 6 Maintenance
6.1 Test Equipment ...................................................................................................................6-2
6.2 Check of Input ..................................................................................................................... 6-3
6.2.1 Check for SKYD-10x and SKYD-20x .....................................................................................6-3
6.2.2 Check for SKYD-30x ..............................................................................................................6-4
6.3 Check of Alarm Set Point ....................................................................................................6-5
6.3.1 Check for SKYD-10x and SKYD-20x .....................................................................................6-5
6.3.2 Check for SKYD-30x ..............................................................................................................6-5
6.4 List of Replaceble Parts ......................................................................................................6-6
Chapter 7 Troubleshooting
7.1 Action in Fault Condition. ....................................................................................................7-2
Toc-1
Contents
Chapter 8 Power Supply Terminal Connections (Option /TB, /A2TB, and /REK)
8.1 External View and Names of Components .........................................................................8-2
8.2 Power Supply and Ground Wiring ....................................................................................... 8-3
General Specifications
Toc-2

Chapter 1 Introduction

Introduction
This manual describes the functions and operations of the SKYD Alarm Unit.
● IntendedReaders
This manual is intended for personnel in charge:
• Installation and wiring
• Instrumentation and setup of the function
• Operation and monitoring of the controller
• Maintenance of equipment
● RelatedDocuments
The following documents all relate to the SKYD Alarm Unit. Read them as necessary. The codes enclosed in parentheses are the document numbers.
Manual Title Manual No. Description
Rack-Mounted Instruments IM 1B4F2-01E Describes mounting and wiring for the YS80 rack-mounted instruments. Model JHT200 Handy Terminal IM 77J50H01-01EN Describes operation of JHT200.
1
1
Introduction
1-1

1.1 Inspection

The SKYD alarm unit is shipped only after stringent inspection at the factory. Visually inspect the product upon delivery to make sure it is not damaged in any way. Store the box and inner packing material of the package in a safe place / they may be needed if there is a problem with the product and it needs to be sent back for repair.
Check of Model and Suffix Codes
The model and suffix codes are indicated on the Name plate attached to the front cover of the instrument. Crosscheck this information with the model and suffix codes of Section 2.2 to ensure that the product is as specified in the order.
ALARM UNIT
SKYD
-204*S
24-110VDC
100-120VAC 50/60Hz
60mA
6.0VA
1-5VDC
ALARM UNIT
SKYD
-204*S
24-110VDC
100-120VAC 50/60Hz
60mA
1-5VDC
XXXXXXXXX
Figure 1-1 Name plate for Thermocouple Input (Description example)
6.0VA
XXXXXXXXX
Confirmation of the Package Contents
Check the package contents against the list below. If anything is missing or damaged, immediately contact the sales office from which you purchased the product or your nearest Yokogawa representative.
• SKYD Alarm Unit ..............................................................................................1
• Alarm Label (Parts No.: L4040JA) .....................................................................1
• Precautions on the Use of the YS80 Series ......................................................1
Downloadable Electronic Manuals
You can download the latest manuals from the following website:
http://www.yokogawa.com/ns/ys/
F0101.ai
1-2

1.2 Documentation Conventions

This manual uses the following notational conventions
Symbols
The following symbols are used in this manual.
Markings
Indicates that operating the hardware or software in a particular manner may damage it or result in a system failure.
Draws attention to information that is essential for understanding the operation and/or features of the product.
1
1
Introduction
Description of Displays
Some of the representations of product displays shown in this manual may be exaggerated, simplified, or partially omitted for reasons of convenience when explaining them.
QR Code
The product has a QR Code pasted for efficient plant maintenance work and asset information management. It enables confirming the specifications of purchased products and user’s manuals. For more details, please refer to the following URL.
https://www.yokogawa.com/qr-code
QR Code is a registered trademark of DENSO WAVE INCORPORATED.
Note
Gives additional information to complement the present topic and/or describe terms specific to this document.
Gives reference locations for further information on the topic.
1-3

1.3 Notice

This Instruction Manual
• This manual should be passed on to the end user. Keep at least one extra copy of the manual in a safe place.
• Read this manual carefully to gain a thorough understanding of how to operate this product before you start using it.
• This manual is intended to describe the functions of this product. Yokogawa Electric Corporation (hereinafter simply referred to as Yokogawa) does not guarantee that these functions are suited to the particular purpose of the user.
• Under absolutely no circumstances may the contents of this manual, in part or in whole, be transcribed or copied without permission.
• The contents of this manual are subject to change without prior notice.
• Every effort has been made to ensure accuracy in the preparation of this manual. Should any errors or omissions come to your attention however, please contact your nearest Yokogawa representative or sales office.
Protection, Safety, and Prohibition against Unauthorized Modification
• The following safety symbols are used on the product and in this manual.
Markings
CAUTION
• In order to protect the product and the system controlled by it against damage and ensure its safe use, make certain that all of the instructions and precautions relating to safety contained in this document are strictly adhered to. Yokogawa does not guarantee safety if products are not handled according to these instructions.
• If protection/safety circuits are to be used for the product or the system controlled by it, they should be externally installed on the product.
• Do not turn off the power of the product during adjustment and parameter setting.
• Be sure to confirm the parameters referring to ‘‘5.4 Parameter List’’ before installing the product in a system or plant. After confirming them, install the product in a system or plant and turn on the power.
• When you replace the parts or consumables of the product, only use those specified by Yokogawa.
• If the product is to be used in systems with special requirements for human safety, such in as nuclear power and radiation related equipment, railway facilities, aircraft facilities, and medical devices, please consult with your sales representative.
• Do not modify the product.
Force Majeure
• Yokogawa does not make any warranties regarding the product except those mentioned in the WARRANTY that is provided separately.
• Yokogawa assumes no liability to any party for any loss or damage, direct or indirect, caused by the use or any unpredictable defect of the product.
If this symbol is indicated on the product, the operator should refer to the explanation given in the instruction manual in order to avoid personal injury or death to either themselves or other personnel, and/ or damage to the instrument. The manual describes that the operator should exercise special care to avoid shock or other dangers that may result in injury or loss of life. Protective ground terminal: This symbol indicates that the terminal must be connected to ground prior to operating the equipment. Function ground terminal: This symbol indicates that the terminal must be connected to ground prior to operating the equipment. AC voltage: This symbol indicates that AC voltage is present. DC voltage: This symbol indicates that DC voltage is present.
1-4

1.4 Compatibility with Previous Models

Compatibility with style A
● Operation and settings differ from previous model (styles A). Please read this document carefully before operating the product.
● Before installing this product in a system or plant, you must check the jumper settings and parameters described in chapter 5, “Settings.” After checking settings and parameters, install the product in the system or plant, and then turn ON the power.
Compatibility with style R
● Operation and settings are the same as for the previous model (style R). Please read this document carefully before operating the product.
● Before installing this product in a system or plant, you must check the jumper settings and parameters described in chapter 5, “Settings.” After checking settings and parameters, install the product in the system or plant, and then turn ON the power.
1
1
Introduction
1-5
Blank
121

Chapter 2 General

General
The Model SKYD Alarm Unit provides two types of alarms : absolute alarm that is output after comparison of one input signal with one or two alarm set points, and deviation alarm that is output after comparison of the deviation between two inputs with two alarm set points. Direct or reverse alarm action can be selected for each of the alarm output set points. The front panel is provided with an alarm LED indicator lamp for confirming alarm relay action (when relay is energized). The JHT200 Handy Terminal (*1) is used for setting the SKYD parameters. On the SKYD model with display setter (SKYD-x04), input indication (engineering unit) can be displayed and alarm set points can be displayed / set on the front panel.
*1: The modular jack conversion adapter (E9786WH) is required for connecting the JHT200 Handy
Terminal to the Alarm Unit.
The 5 pin-connector type communication cable (F9182EE) and modular jack conversion adapter
(E9786WH) is required for connecting the BT200 BRAIN Terminal of YOKOGAWA ELECTRIC Corporation
2
General
Figure 2-1 External View
F0201.ai
2-1

2.1 Standard Specifications

Please see the General Specifications (GS 01B04K01-02E) at the end of this manual.
2-2
121

2.2 Model and Suffix Codes

Model Suffix Codes Optional
SKYD Alarm Unit Alarm -1
Su󰀩x Code 0 Always 0 Setting Scale
Style Code *S Style S Option Codes
-2
-3
(*1)
(*4) (*5)
*1: In the case of two set points, the setting ranges of one set point/two set points are the same. *2: The value obtained by squaring the setting value functions as the alarm setting value. *3: 2-input deviation alarm only *4: /LOCK, /REK, /TB, /A2TB, and /A2ER cannot be specified together. *5: /FBP, /A2TB, and /A2ER cannot be specified together.
0 1 2 4
Suffix Codes
/NHR /FBP /LOCK /WSW /REK /TB /A2TB /A2ER
1 input, 1 setpoint absolute alarm 1 input, 2 setpoints absolute alarms 2 inputs, 2 setpoints deviation alarms
0 to 100 linear 0 to 10 square root
-100 to +100 linear (deviation alarm) Actual scale (with display setter)
Without rack case Power supply fuse bypass Power supply plug with lock With spring washer Mount to same line with EK series rack With power supply terminal 220V version with power supply terminal 220V version with power supply plug
Description
(*2)
2
General
(*3)
2-3

2.3 Accessories

Alarm Label: 1 sheet
2-4
1
2
1
2

Chapter 3 Installation

Installation
For details of the installation procedure and wiring precautions, refer to the instruction manual “Installation of Rack-Mounted Instruments” (IM 1B4F2-01E).
3
3
Installation
3-1

3.1 External Wiring

(a) All cable ends must be furnished with crimp-on type solderless lugs (for 4mm screws).. (b) Draw out the internal unit from the rack case. (c) Connect the cables to the correct terminals referring to Figure 3-1. (d) Return the internal unit into the rack case after completing the wiring. (e) Always return the terminal block cover to its original position after completing the wiring.
The terminal block cover cannot be returned to its original position if the internal unit is not installed its original position in the rack case. Securely return the terminal block cover because it also functions as lock for the internal unit.
Terminal arrangement
OUT
K
J
HFDCB
A
Terminal
Designation
A NC
Description
Alarm output 1 B COM C D F NC Alarm output 2
(*1)
H COM J NO K NO
Do not connect to the output terminal when the terminal is not in use.
*1: Except SKYD-1 type.
Terminal
Designation
1 + 2 ­3 4
3
5
1
2
4
6
8
7
IN
5 + 6 ­7 8
*2: For SKYD-3 type only.
Figure 3-1 Terminal Layout and Terminal Wiring
Input 1
Input 2
Description
(*2)
3-2
1
2
1
2

3.2 Example of Alarm Wiring

The SKYD alarm unit provides various types or alarms depending on the setting of the alarm action or the method of connecting the alarm output terminals. Thus, the necessary wiring should be made with reference to the following two examples:

3.2.1 High-limit and High-high-limit Alarms

Set the direct action (DIRECT) for the alarm actions of both alarms 1 and 2. Then wire the terminals as illustrated in Figure 3-2.
SKYD Alarm Unit
H
H
Alarm 1 setting
Input (deviation)
value
Alarm 2 setting
3
3
Installation
Alarm output terminal
Figure 3-2 External Wiring - Example 1
F0302.ai

3.2.2 Three-position Alarm

Set the reverse action (REVERSE) for the alarm action of alarm 1, and the direct action (DIRECT) for the alarm action of alarm 2. Then wire the terminals as illustrated in Figure 3-3.
SKYD Alarm Unit
N
L
H
Alarm output terminal
Figure 3-3 External Wiring - Example 2
Alarm
Alarm 2 setting
Alarm 1 setting
Input (deviation) value
F0302.ai
3-3
3.2 Example of Alarm Wiring
Applicable Cables
(1) Signal circuit wiring
(2) Alarm circuit wiring
(3) Power supply wiring
• Cross-sectional area of the cable conductor: 0.5 to 0.75 mm
2
• Examples of applicable cables: Single core PVC insulated flexible cable (VSF) stranded wires (JIS C 3306); heat-resistant vinyl-insulated cable (UL style 1007)
• Cross-sectional area of the cable conductor: 0.5 to 1.25 mm
2
• Examples of applicable cables: 600 V PVC insulated cable (IV) stranded wires (JIS C
3307); PVC insulated cable for electric appliances (KIV) stranded wires (JIS C 3316); heat-resistant vinyl-insulated cable (UL style 1007)
• Cross-sectional area of the cable conductor: 1.25 to 2.00 mm
2
• Examples of applicable cables: 600 V PVC insulated cable (IV) stranded wires (JIS C
3307)
3-4
1
2
3
1
2
3

Chapter 4 Principles of Operation

4.1 Principle of Operation

Input signals are converted to digital data by the A/D conversion circuit. The resulting digital data is processed (square root calculation, etc.) by the microcomputer, and the alarm relay is then energized/de-energized by alarm calculation processing (comparison, etc.).
1
2
5
6
Handy
Terminal
SET
Figure 4-1 Hardware Function Block Diagram
Input
processing
circuit 1
Input
processing
circuit 2
(*1)
Display setter (*2)
*1: SKYD-30x only *2: SKYD-x04 only *3: Except SKYD-10x
Multiplexer
conversion
A/D
circuit
Micro-
processor
Relay
output 1
Relay
output 2
(*3)
Power
supply circuit
A
B
J
F
H
K
L
Power supply
N
GND
F0401.ai
App
4
Principles of Operation
4-1

4.2 Description of Functions

The following describes the functions of the SKYD-10x/20x and SKYD-30x.

4.2.1 SKYD-10x/20x Functions

Input signal
A/D conversion
1 to 5 VDC
Normalization
INPUT1
Square root calculation
LINEARIZE1
LOW CUT1
Scaling (*1)
Bias (*1)
PV1
Alarm detection 1
Alarm relay connection 1
BIAS1
SET POINT1 HYSTERESIS1 ALM1 ACTION
ON DELAY1
OFF DELAY1
RLY1 ACTION
Relay output 1 Relay output 2
Figure 4-2 Software Function Block Diagram
The alphabet codes in the figure are the names of BRAIN communication parameters.
*1: SKYD- 04 only
RLY1 TEST
SCH1 SCL1
DP1
SKYD-20 only
Alarm detection 2
Alarm relay connection 2
SET POINT2
HYSTERESIS2
ALM2 ACTION
ON DELAY2
OFF DELAY2
RLY2 ACTION
RLY2 TEST
F0402.ai
4-2
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