Thank you for purchasing our AVP703 Smart Valve Positioner. The AVP703 (called
“the device” below) is a smart valve positioner that can be connected to the Foundation
Fieldbus.
The auto setup function makes it easy to set up the valve.
All adjustments and setup can be performed from the Foundation Fieldbus host. The Local
User Interface (LUI), which consists of the LCD (liquid crystal display) and operation
buttons, facilitates monitoring of input signals, valve opening, pressure display, and other
items as well as basic adjustments.
In addition, the built-in pressure sensor can be used to measure the supply air pressure and
output air pressure. As a result, the device can not only perform self-diagnostics but can
also be combined with the control valve maintenance support system called “Valstaff ” in
order to monitor the characteristics, operating status, and other data of the control valve,
helping to improve the maintenance efficiency of control valves. This instruction manual
describes how to handle the device. Read this manual to make full use of the features of
this product.
Scope of this manual and related documents
This document describes the functions and method of installation and adjustment of this
device. For details on the F
Manual (No. CM2-FBS100-2001*).
OUNDATION
Fieldbus network, refer to Fieldbus Integration
For details on the control valve diagnostic items, refer to the Smart Valve Positioner 700
Series Control Valve Diagnostic Function Manual (No. CM2-AVP700-2003*).
* If you need the above documents, please contact one of our sales representatives.
i
Safety precautions
Symbols
The purpose of the safety precautions listed here is to ensure the user uses the product
safely and correctly, to prevent harm to the user and other people and damage to property.
Make sure to observe the safety precautions.
Many different symbols are used in this manual.
Their appearance and meaning are described below. Thoroughly understand the
explanation before starting to read the main text.
WARNING
CAUTION
Sample symbols
This symbol indicates warnings and cautions for handling the device.
This symbol indicates prohibited actions that must not be taken.
This symbol indicates instructions for an action that must be taken.
Handling Precautions:
This symbol indicates a point to be noted when handling the device.
Wrong handling may cause the death or severe injury of the user.
Wrong handling may cause a minor injury to the user or damage to equipment.
ii
Precautions for safe work
Do not perform wiring with wet hands or while the device is energized. This may lead to electric
shock. Turn the power off before starting the work and work with dry hands or use gloves.
Follow the work procedure defined in the explosion protection guidelines when performing the
power distribution work in an explosion-proof area.
For devices equipped with the pressure-resistant, explosion-proof specifications, do not open the
cover during operation (while the power is on).
Do not get on the installed device or use it as a step stool. This is dangerous because the device may
tip over.
Do not touch the device during operation without reason. This is dangerous because the surface may
be hot or cold depending on the usage environment.
Be careful not to touch the edge of the cover or the screw threads of the main unit when opening the
cover of the terminal box. You may be injured by these parts.
WARNING
CAUTION
Use a DC power supply with overload protection. Overload may cause smoke or fire.
If a tool or other item touches the glass part of the display, it may break, leading to an injury. Be
careful. Wear safety glasses during work.
This product is heavy. Be careful where you step and wear safety shoes during work.
Do not touch the feedback lever or other moving part while the device is operating. You may be
injured by getting your hand or other body part caught in them.
Properly use the power supply based on the specifications. Inputting a different power supply may
damage the device.
Use gloves and other protective equipment during work in a hot, cold, or other severe environment.
Do not move the device close to a magnet or magnetic driver. The control valve may operate.
Apply the correct supply air pressure in accordance with the specification of the device. The
overpressure may cause abnormal actions of the control valve or damage to the pressure gauge.
iii
Unpacking, Verification, and Storage of Product
Unpacking
This device is precision measuring equipment. Carefully handle it to prevent accidents or
damage.
After unpacking, check that the items below are included.
• The device
• Feedback lever and hexagon socket bolts×2
• (4-mm) hexagon wrench×1 (for feedback lever) (Included only when the device is
shipped alone.)
• Solenoid valve (KZ03) (optional)
• Mounting plate set (optional)
• Pressure-resistant packing cable adapter and pressure-resistant elbow (option for
explosion-proof specifications)
• Instruction manual (this document) (Included if specified at the time of purchase.)
• Extension lever and hexagon socket bolts×2 (optional)
Specifications check
The specifications are shown on the nameplate of the main unit. Check that the specifications
are the same as what you specified. In particular, confirm the following points.
When using the device in an explosion-proof area, be sure to select the model that satisfies the
necessary explosion-proof requirements. Non-explosion-proof products cannot be used in an
explosion-proof area.
Contact
Storage
• Tag No. (TAG No.)
• Model (MODEL)
• Work No. (PROD.)
• Supply air pressure (SUPPLY)
• Explosion protection certification seal (for explosion-proof specifications)
WARNING
For inquiries about this device, please contact us.
When contacting us, let us know the model number and production number.
When storing the device after purchase, obey the following precautions.
• When storing the device before it has been used
1. Store the device as packed at shipment.
2. Store the device at an indoor location with little vibration or shocks and at normal
temperature and humidity (about 25°C, 65%).
• When storing the device after it has been used
1. Tightly secure the terminal box cover and block the conduit connection port with
tape to prevent humidity intrusion.
2. Block the three pneumatic piping connection ports (SUP, OUT1 and OUT2) with
tape to prevent humidity and dust intrusion.
3. Pack the device in the same way as at shipment.
4.
Store the device at an indoor location with little vibration or shocks where it will not be
exposed to rain or water and at normal temperature and humidity (about 25°C, 65%).
iv
Table of Contents
Chapter 1. Structure of the 700 Series Control System 1-1
1-1. System Configuration
1-2. Structure of the Device and Description of Each Part 1-3
1-2-1. Structure of the Device 1-3
1-2-2. Structure of Terminal Box 1-5
1-2-3. Display on the Local User Interface (LUI) 1-7
1-1
Chapter 2. Installation of the 700 Series 2-1
2-1. Usage Conditions
2-2. Selection Criteria for Installation Location 2-3
2-2-1. Selection Criteria for Installation Location 2-3
2-3. Installation Procedure 2-5
2-3-1. Mounting the 700 Series onto the Actuator 2-5
2-3-2. Pneumatic Piping Connection 2-11
2-3-3. Electrical Wiring Connection 2-14
2-3-4. Cables 2-16
2-4. Cable gland and flameproof universal elbow for TIIS Flameproof apparatus 2-18
2-2
Chapter 3. Operation of the 700 Series 3-1
3-1. Local User Interface (LUI)
3-1-1. Displays 3-4
3-1-2. Disp_TB Display 3-5
3-2. Adjustment before Operation 3-14
3-2-1. Auto Setup 3-14
3-2-2. Zero Span Adjustment 3-17
3-2-3. Supply Bypass 3-20
3-2-4. Control Parameters 3-21
Chapter 4. Operations Using Fieldbus Communication 4-1
4-1. Fieldbus Communication Menus
4-2. Setup and Adjustment of Device 4-1
4-2-1. Process Variables 4-2
4-2-2. Auto Setup 4-2
4-2-3. Valve System 4-4
4-2-4. Control Configuration 4-5
4-2-5. Characterization 4-6
4-2-6. Final Value Cutoff 4-7
4-2-7. Units 4-7
4-2-8. Travel Calibration 4-8
4-2-9. Pressure Sensor Adjustment 4-9
4-2-10. Simulation 4-9
4-2-11. Test 4-10
4-2-12. Restore factory settings 4-11
4-2-13. Operator Action Records 4-11
4-2-14. Device Information 4-12
4-2-15. FF Option 4-12
4-3. Diagnostic Messages 4-13
4-3-1. Self-Diagnostic Messages 4-13
v
4-1
4-3-2. Control Valve Diagnostic Messages
4-15
Chapter 5. Troubleshooting 5-1
5-1. Troubleshooting
5-1-1. The Device Does Not Operate. (There Is No Output Air Pressure.) 5-2
5-1-2. The Control Valve Operates Abnormally (There Is Output Air Pressure.) 5-3
5-1-3. Display Transducer Block Does Not Switch To Auto (LUI display says “DISP_OOS.”)
5-3
5-1-4. Adjustment Procedure When Hunting Occurs 5-4
5-1-5. Auto Setup Failure 5-5
5-2. Description of Messages 5-6
5-2
Chapter 6. Maintenance 6-1
6-1. A/M Switch
6-2. Replacement of Filter and Maintenance of Flow Restrictor 6-3
6-3. Cleaning the Flapper 6-4
6-4. Adjusting the Pilot Relay 6-5
6-5. Insulation Resistance Test 6-6
6-6. Adjustment Procedure When Using the Device with the Booster Relay Attached 6-7
6-7. Internal Block Diagram of the 700 Series 6-8
6-8. Resale Parts 6-8
6-8-1. Procedure to Change Switch Block 6-12
6-8-2. Procedure to Change Pilot Relay 6-13
6-2
Chapter 7. Notes on the Explosion-Proof 700 Series 7-1
7-1. TIIS Flameproof Model
7-2. ATEX Flameproof and Dust Ignition Protection 7-3
7-3. IECEx Flameproof and Dust Ignition Protection 7-5
7-4. FM Explosionproof/Dust Ignition Protection 7-7
7-5. FM Intrinsically safe (ic) and Nonincendive 7-8
7-6. FMC Explosionproof/Dust Ignition Protection 7-11
7-7. NEPSI Flameproof/Dust Ignition Protection 7-12
7-8. KOSHA Flameproof 7-14
7-9. INMETRO Flameproof/Dust Ignition Protection 7-15
7-10. EAC Flameproof 7-17
7-11. ATEX Intrinsic Safety and Dust Ignition Protection 7-18
7-12. IECEx Intrinsic Safety and Dust Ignition Protection (FISCO) 7-19
7-2
Appendix A. LUI Display Example A-1
Appendix B. Menu List B-1
Appendix C. Parameter List C-1
Appendix D. Specifications D-1
Appendix E. Model Configuration Table E-1
Appendix F. Outline Dimensional Drawing F-1
Terms and Conditions S2
vi
Chapter 1 Structure of the 700 Series Control System
Air to the actuator
Control valve
Process fluid
Chapter 1. Structure of the 700 Series Control System
This chapter describes the device configuration of the control system that uses the device.
•
Description of the configuration of the input/output system in the device
•
Description of the structure of the main unit of the device and the name and function of
each part
1-1. System Configuration
This device is a Fieldbus-enabled smart valve positioner and registered Foundation Fieldbus product.
The concept and the operation block diagram of the control valve control system that uses
the device are shown below.
Fieldbus
Other Fieldbus device
Air supply
system
Figure 1-1. Concept Diagram of the 700 Series Control System
Shutoff
valve
Device
Supply air
Solenoid valve
with filter
1-1
Chapter 1 Structure of the 700 Series Control System
Fieldbus
CV
1) Operation block diagram
The block configuration of a typical function block and positioner is shown in the figure
below.
Resource
Block
PV
SP
PID
INOUT
AO
Function
Block
Figure 1-2. Operation Block Diagram (AVP703)
Positioner
Transducer
Block
Position
sensor
−
Positioner
control section
Electropneumatic
transduction
section
Pilot
1-2
Chapter 1 Structure of the 700 Series Control System
interface (LUI)
Output air pressure gauge
Output air connection port (OUT1)
Electrical conduit connection port
Terminal box cover
Output air connection port (OUT2)
1-2. Structure of the Device and Description of Each Part
1-2-1. Structure of the Device
1) Major components
The structure of the main unit of the device is shown in the figure below.
Main unit
Mounting plate (optional)
Feedback lever
Local user
Exhaust cap
Supply air pressure gauge
Figure 1-3. Structure of the Device (Upper)
External grounding terminal
Pilot relay cover
Supply air connection port (SUP)
Figure 1-4. Structure of the Device (Lower)
1-3
Chapter 1 Structure of the 700 Series Control System
2) Name and description of each part
The table below describes each part.
NameDescription
Main unit
Pilot relay cover
Auto/Manual (A/M)
switch
Table 1-1. Description of Each Part
•
Houses electronic circuits, an electro-pneumatic transducer (EPM), a position sensor (VTD), and a pressure
sensor.
•
Cover of the pilot relay that amplifies the air signal from
the EPM (electro-pneumatic transducer) and transduces
it into the air signal sent to the actuator.
•
When you must adjust the balance pressure to switch
between the pilot relay for the single-acting actuator and
the pilot relay for the double-acting actuator, remove
this cover.
•
This switch is used to switch how the output air between
the auto operation status and the manual operation
status is controlled. This switch is built into the pilot
relay. This switch can be seen by removing the pilot relay
cover.
Feedback lever
Local user interface (LUI)
Supply air pressure gauge
Output air pressure gauge
Supply air connection
port (SUP)
Output air connection
port (OUT1)
Output air connection
port (OUT2)
Mounting plate (optional)
•
Extracts and transmits the movement of the control
valve lift to the VTD (position sensor).
•
The LUI allows you to adjust the zero span, perform
auto setup, and manually operate the device with the
LCD (liquid crystal display) and operation buttons without using the communicator.
•
Indicates the pressure of supply air.
•
Indicates the pressure of output air.
•
Supply air is input to this port.
•
“SUP” is displayed at this port.
•
Output air is sent out of this port to the actuator.
•
“OUT1” is displayed at this port.
•
Output air is sent out of this port to the actuator.
•
This port is blocked with a blind plug in the singleacting actuator.
•
OUT2 is displayed at the output port for the doubleacting actuator.
•
The mounting plate is used to mount the device onto the
actuator.
•
The shape of the mounting plate differs depending on
the specifications (actuator model).
1-4
1-2-2. Structure of Terminal Box
Lock screw
Conduit connection port (2)
Conduit connection port (1)
box cover
1) Major components
The terminal box houses the Fieldbus terminal and the internal grounding terminal.
The structure of the terminal box is as shown below.
Chapter 1 Structure of the 700 Series Control System
Terminal
Figure 1-5. Structure of Terminal Box
M4 screw
for Fieldbus terminal
M4 screw
for external grounding terminal
M4 screw
for internal grounding terminal
Figure 1-6. Terminal Block in the Terminal Box
1-5
Chapter 1 Structure of the 700 Series Control System
2) Name and description of each part
The table below describes each part of the terminal box.
NameDescription
•
Terminal box cover
Lock screw
•
•
•
Fieldbus terminal
External grounding
terminal
Internal grounding
terminal
Conduit connection
port (1)
Conduit connection
port (2)
•
•
•
•
•
•
Table 1-2. Description of Each Part
Lid of terminal box.
This cover has a pressure-resistant explosion-proof structure.
Used to secure the terminal box cover.
“FB” is displayed at this terminal.
The Fieldbus signal cable is connected to this terminal.
External terminal for grounding. The cable for grounding is
connected to this terminal.
Internal terminal for grounding. The cable for grounding is
connected to this terminal.
Service entrance for a cable.
Service entrance for a cable.
This entrance is normally blocked with a blind plug.
WARNING
When using a pressure-resistant explosion-proof model in a dangerous place, be sure to use the
specified cable adapter for pressure-resistant packing for the conduit connection port. Securely
close the terminal box cover all the way. Then, rotate the lock screw counterclockwise to secure the
terminal box cover.
Handling Precautions:
Ground either the external or internal grounding terminal according to the
specifications. Be careful not to ground the device at two points.
1-6
1-2-3. Display on the Local User Interface (LUI)
Chapter 1 Structure of the 700 Series Control System
(1)
(3)
(2)
(8)
(9)
(10)
(4)
(5)
(6)
(7)
Figure 1-7. Segments on the LUI
Table 1-3. Description of Each Part
No.Displayed elementMain display
(1) 7 segments (5 digits)
Displays the main numerical values such as the specified opening.
(2) Minus signDisplays the sign for the 7-segment number.
(3) Decimal point (5 places) Displays the decimal point for the 7-segment number.
(4) 16 segments (7 digits)Displays the unit, status, or other data.
(5) Dot (6 places)
Displays the 16-segment auxiliary display, separator, or
other data.
(6) PercentageDisplays %.
(7) Bar graph (22 bars)Displays the bar graph in percentage at a set point, etc.
On: LUI operation is unavailable.
(8) Key mark
Off: LUI operation is available.
Blinking: LUI is in operation.
When the self-diagnostic alarm is activated, the key
(9) Flag mark
mark is displayed. For detailed information of the
alarms, please refer to the status monitor of page 3-4 .
Display during operation
(10) Display refresh mark
White and black circles alternately blink.
For a display example, refer to “Appendix A. LUI Display Example.”
Handling Precautions:
The LUI buttons may not respond well near an electromagnetic inductor (such as
a large transformer or high-frequency furnace).
Remove sand, dust, and other foreign objects from the rubber parts of the
operation buttons before operating the LUI. Operating the LUI with foreign
objects on it may damage the rubber parts.
Do not pull the rubber parts of the operation buttons. This may deteriorate the
sealability, possibly causing malfunction.
1-7
Chapter 1 Structure of the 700 Series Control System
1-8
Chapter 2 Installation of the 700 Series
Chapter 2. Installation of the 700 Series
This chapter describes the usage conditions, installation, piping, and wiring of the device.
Precautions for safe work
WARNING
Do not perform wiring with wet hands or while the device is energized. This may lead to electric
shock. Turn the power off before starting the work and work with dry hands or use gloves.
Follow the work procedure defined in the explosion protection guidelines when performing the
power distribution work in an explosion-proof area.
For devices equipped with the pressure-resistant, explosion-proof specifications, do not open the
cover during operation (while the power is on).
CAUTION
Do not get on the installed device or use it as a step stool. This is dangerous because the device may
tip over.
Do not touch the device during operation without reason. This is dangerous because the surface may
be hot or cold depending on the usage environment.
Be careful not to touch the edge of the cover or the screw threads of the main unit when opening the
cover of the terminal box. You may be injured by these parts.
Use a DC power supply with overload protection. Overload may cause smoke or fire.
If a tool or other item touches the glass part of the display, it may break, leading to an injury. Be
careful. Wear safety glasses during work.
This product is heavy. Be careful where you step and wear safety shoes during work.
Do not touch the feedback lever or other moving part while the device is operating. You may be
injured by getting your hand or other body part caught in them.
Properly use the power supply based on the specifications. Inputting a different power supply may
damage the device.
Use gloves and other protective equipment during work in a hot, cold, or other severe environment.
Do not move the device close to a magnet or magnetic driver. The control valve may operate.
Apply the correct supply air pressure in accordance with the specification of the device. The
overpressure may cause abnormal actions of the control valve or damage to the pressure gauge.
2-1
Chapter 2 Installation of the 700 Series
2-1. Usage Conditions
The device must be installed in the location, which satisfies the following conditions.
Also, the divice must be used in accordance with its specification.
Table 2-1. Range of Usage Conditions
Units
Basic
operating
conditions
Normal
operating
conditions
Marginal
operating
conditions
Transportation
conditions
General model°C+23 ±2−40 to +80−40 to +80−40 to +70
TIIS flameproof model°C+23 ±2−20 to +55−20 to +55−40 to +70
ATEX/IECEx/FM/
Operating
FMC/NEPSI/KOSHA/
EAC/INMETRO
flameproof model
°C+23 ±2−30 to +75−30 to +75−40 to +70
temperature
range
FM Intrinsically Safe (ic)
and Nonincendive
°C+23 ±2−24 to +75−24 to +75−40 to +70
ATEX/IECEx intrinsically safe model
°C23±2−40 to +60−40 to +60−40 to +70
(FISCO)
LUI°C+23 ±20 to +50−40 to +80−40 to +70
Power supply voltageV9 to 329 to 3232—
Vibration
Amplitude *
Acceleration *
Friction of applied valve%3 to 203 to 20
Supply air pressure Ps
(140kPa≤Ps≤700kPa)
Installation orientation *
1
1 *2
mm
m/s
p-p
015/(5 to 8 Hz)15/(5 to 10 Hz)15/(5 to 10 Hz)
2
020/(8 to 400 Hz) 40/(10 to 400 Hz) 40/(10 to 400 Hz)
0 to 3
20 to 100
—
kPaPs ±1%140 to 7000 to 710—
3
°±1*
4
±180±180±180
Humidity range%RH50 ±105 to 1005 to 1005 to 100
Each operating condition is defined as follows.
•
Basic operating condition: Range in which the accuracy is guaranteed
•
Normal operating condition: Range in which the positioner normally operates
•
Marginal operating condition: Range in which performance is not guaranteed but the device can be used with-
out being permanently damaged
•
Transportation condition: Environment condition range in which the non-operating device is not permanently
damaged during transportation
*1. Vibration conditions when the positioner cover is positioned at the center front.
*2. The pressure gauge is not applied.
*3. The slope characteristics are not included.
*4. The status where the drive shaft of the direct-acting actuator is perpendicular to the ground and that is used as the reference.
2-2
2-2. Selection Criteria for Installation Location
The device is designed to withstand severe conditions, but the installation location should
be selected according to the criteria described below to maximize performance.
2-2-1. Selection Criteria for Installation Location
Install the device in a location that satisfies all of the following conditions.
•
Operating temperature range that conforms to the explosion protection rules
•
Relative humidity: 5 to 100%RH
•
Ambient temperature change rate: ±20°C/hr or slower
•
Electromagnetic induction: 400 A/m or less (Avoid places near a large transducer, highfrequency furnace, or other such equipment.)
•
Do not use a transceiver near the device.
•
Vibration: 20 m/s2 (5 to 400 Hz) or less (The vibration conditions defined for the device
are the vibrations at the positioner part.)
Chapter 2 Installation of the 700 Series
2-2-1-1. Criteria for instrumentation air
The device employs a nozzle flapper structure in the electropneumatic transduction section. If instrumentation air is contaminated (includes oil, water, or other substance), the
positioner function of the device may not function properly or an irrecoverable failure may
occur. Therefore, the quality of instrumentation air supplied to the device is defined as follows.
•
Solid material: No particles with a diameter larger than 3 μm.
•
Oil: Less than 1 ppm.
•
Supply air humidity: The dew point temperature is at least 10°C lower than that of the
(This criterion is based on Japanese Industrial Standards JIS C 1805-1(2001).)
Select a compressor and main line or terminal-installation type compressed air purifier by
referring to the above specifications.
(1) Compressed air purifier for the main line
Select a compressed air purifier for the main line, such as a main line filter or microalescer, to satisfy the above specifications.
Domestic compressed air purifier manufacturers of Japan: SMC Corporation and CKD
Corporation
device.
(2) Compressed air purifier to be installed on the terminal
If an air purifier cannot be installed on the main line due to installation of a control
valve or for other reasons, use an compressed air purifier that can be installed on the
terminal in order to satisfy the above specifications.
2-3
Chapter 2 Installation of the 700 Series
<Example devices>
Products from SMC Corporation
•
Mist Separator AM150 or AM250 Series (Filtering level: 0.3 μm, Secondary oil mist
concentration: 1.0 mg/m3)
CKD Corporation
•
Oil mist filter
•
M1000 or M3000 Series
•
Mantle S Type (Filtering level: 0.3 μm, Remaining oil: 1.0 mg/m3)
Handling Precautions:
Select a compressed air purifier with specifications suited to the usage conditions.
Even when you install the above oil removal equipment, it is necessary to properly
inspect and maintain the air circuit section for long-term stable operation. Install
the oil removal equipment before use and perform periodic inspection and
maintenance.
The warranty is void if the device fails because the quality of the above
instrumentation air was not sufficient.
2-4
2-3. Installation Procedure
2-3-1. Mounting the 700 Series onto the Actuator
The device is a smart valve positioner for use with a control valve that uses a direct-acting
or rotary actuator. The main unit of the device weighs approximately 4.2 kg. The basic
mounting procedure is the same as that for conventional electropneumatic positioners.
CAUTION
Be careful not to get injured by sharp parts such as the edge of the main unit or actuator or screw
threads during mounting.
The type of mounting plate, mounting method, and mounting procedure differ depending on the
actuator model to be mounted in the device.
If the device is not properly mounted, not only will the device not be able to operate at its true
performance but it may be damaged or fail. Pay attention to the following points.
•
The mounting plate and its accessories differ depending on the specifications (actuator model).
Be sure to use the appropriate mounting plate and accessories for the actuator to be mounted.
•
When installing the control valve, ensure as much surrounding space as possible and put the
device in the correct orientation taking maintainability (such as piping, wiring, and adjustment)
into consideration.
•
Deliver the device to the installation location in the packaged state if possible.
•
Do not apply excessive force to the feedback lever during mounting.
•
Do not bend the feedback pin.
•
Do not block the exhaust port located underneath.
•
Install the device so that the electrical conduit connection port does not face upward.
•
Securely tighten bolts.
•
If the model KZ03 pressure regulator with filter is installed with the device, install with the drain
of the KZ03 facing downward. If the KZ03 cannot be attached vertically (with the drain facing
downward), install it separated from the AVP with the proper orientation.
•
In order to avoid the possibility of rainwater entering the pressure gauge, install the gauge
such that it does not face upward or downward. In addition, the pressure gauge has a rainwater
drain on its underside, so install the gauge with this hole facing downward.
•
If you install this device with the LCD facing upwards, use the LCD cover and pressure gauge
elbows as necessary, depending on the circumstances. For details, refer to 6) below, “Installing
the device with the LCD facing upwards.”
Chapter 2 Installation of the 700 Series
2-5
Drain plug
Chapter 2 Installation of the 700 Series
Hexagon socket ange bolts (×2)
Yoke
AVP
Hexagonal bolt
1) Mounting the feedback lever
Assemble the feedback lever from the front of the main unit of the device using the two
included hexagon socket bolts.
Assemble the extension lever as shown in the figure below if necessary.
Figure 2-1. Mounting Procedure for Feedback Lever
Figure 2-2. Mounting Procedure for Extension Lever
2) Mounting example
A typical mounting method is shown in the figure below. If your actuator is not shown in
the figure below, refer to the assembly diagram included with the device.
[Direct-Acting Actuator HA2 to 4, PSA1 to 4, 6, VA1 to 6 from Azbil Corporation]
Connector pin assembly
Plain washer
Spring washer
Feedback lever
Feedback pin
Figure 2-3. Mounting Procedure for Direct-Acting Actuator HA2 to 4, PSA1 to 4, 6, VA1 to 6 from Azbil Corporation
2-6
[RSA1, 2, VR3 actuator from Azbil Corporation]
Hexagonal bolt
Hexagonal bolt
AVP
Chapter 2 Installation of the 700 Series
Plain washer
Spring washer
Feedback pin
Feedback lever
Figure 2-4. Mounting Procedure for RSA1, 2, VR3 Actuator from Azbil Corporation
[Example of double-acting rotary cylinder actuator]
SpacerAVP
Spring washer
Hexagonal bolt
Arm
Spring washer
Spring
washer
Feedback pin
Hexagonal nut
Feedback lever
Figure 2-5. Mounting Procedure for Double-Acting Rotary Cylinder Actuator
3) Mounting procedure
The procedure for mounting the feedback lever onto the actuator is shown below.
StepDescription
Tightly secure the mounting plate by inserting hexagonal bolts (M8×20) with
1
spring washers into the (two) screw holes at the rear of the device.
Tightly secure the device (mounting plate) onto the mounting seat of the actua-
2
tor by using bolts and washers. At this time, insert the actuator feedback pin into
the slotted hole of the feedback lever in the device.
2-7
Chapter 2 Installation of the 700 Series
Spring (cross section)
30°
30°
4) Connection of feedback pin and feedback lever (1)
There are several points to be careful of when connecting the feedback lever to the device
and the actuator feedback pin. Connect correctly.
•
Only a pin with a diameter of 6 mm can be used.
•
Insert the pin between the guide and the spring.
•
Make the feedback lever perpendicular to the pin when viewed from the above.
Feedback lever (cross section)
Pin
Figure 2-6. Connection of Feedback Lever and Feedback Pin
90°
Pin
Feedback lever
Figure 2-7. Angle between Feedback Lever and Pin
•
Mount the lever so that it is horizontal when opened by 50%.
•
The allowable rotation angle of the feedback lever is horizontal ± 30°. If the angle exceeds ±30°, the self-diagnostic function detects Valve Travel Detector Out of Range and
the device will not operate normally. (The accuracy is guaranteed when the rotation
angle is between ±4° and ±20°.)
Figure 2-8. Operation Angle of Feedback Lever
2-8
Chapter 2 Installation of the 700 Series
Shaft of rotary cylinder
Feedback pin
Shaft of rotary cylinder
•
When assembling the lever onto a rotary cylinder so that the shaft of the rotary cylinder
is positioned between the feedback pin and the 700 Series as shown in the figure below,
select Rotary/90° (for 90°) or Rotary/other (for angles other than 90°) as the Actuator
Type according to the rotation angle.
AVP
Feedback pin
Feedback lever
Figure 2-9. Connection of the Rotary Cylinder to the Feedback Pin and Feedback Lever
•
When the rotary cylinder is large and the lever is assembled so that the feedback pin is
positioned between the 700 Series and the shaft of the rotary cylinder as shown in the
figure below, select Rotary (sub)/90° (for 90°) or Rotary (sub)/other (for angles other
than 90°) as the Actuator Type according to the rotation angle.
AVP
Figure 2-10. Connection of the Rotary Cylinder to the Feedback Pin and Feedback
Lever(Large cylinder)
5) Maintenance space behind the device
The device has a nozzle flapper mechanism in the back of the main unit. When cleaning
the flapper, you must remove the pilot relay cover secured to the back with three screws.
Design the clamp and feedback mechanism to ensure maintenance space for cleaning.
2-9
Chapter 2 Installation of the 700 Series
6) Installing the device with the LCD facing upwards
If you install the device with the LCD facing upwards, use the accessories below as required depending on the circumstances. (Refer to 6-9, “Resale Parts.”)
•
LCD cover (material: silicone rubber)
This cover reduces deterioration of the LCD due to sunlight (ultraviolet radiation). Use
the cover if the device is used in a place with strong sunlight (outdoors, etc.).
Before mounting or removing the LCD cover, it is necessary to remove the face cover from the main
unit. Take care as you work not to touch sharp parts of the face cover, such as the rim. You might be
injured.
Handling Precautions:
Remove the face cover when checking the LCD.
•
Pressure gauge elbows (Connection: Rc1/8)
The elbows are for mounting the pressure gauges if the device is installed in a place with
direct exposure to rainwater (outdoors, etc.). (If the pressure gauges are installed facing
upward, they will be damaged by rainwater.
Figure 2-13. Example of LCD cover and pressure gauge elbow mounting
2-10
2-3-2. Pneumatic Piping Connection
Supply air
This section describes how to supply the air for the device to drive the actuator.
1) Air supply system
Supply air must be clean and dry to stably use the device for a long time. A typical example
of an air supply system is shown in the figure below.
Chapter 2 Installation of the 700 Series
Shuto
valve
Solenoid valve
with lter
Supply air piping
Figure 2-14. Air Supply System
Output air
piping
2) Supply air
Use supply air that conforms to the instrumentation air standards (on page 2-2).
3) Solenoid valve with filter
•
The solenoid valve with filter is used to adjust the pressure of the supply air to the device.
•
Install this valve as close to the main unit of the device as possible.
•
The control valve can be manually operated by using the A/M switching function. (The
double-acting actuator does not support manual operation.)
•
Use a 3-μm or finer filter.
•
The filter removes solid materials from supply air.
•
If the filter is not equipped, separately insert a (3-μm or finer) filter immediately before
the solenoid valve.
•
Install the solenoid valve so that the drain faces downward.
•
If you select the built-in Azbil solenoid valve KZ03, the filter is built into the device before shipment.
4) Shutoff valve
•
The shutoff valve is used to temporarily stop supplying air to the device.
•
With this valve, the device or control valve can be removed without having to stop the
whole air supply system during maintenance or other operations.
2-11
Chapter 2 Installation of the 700 Series
Output air connection port (OUT1)
Rc1/4 or 1/4NPT
5) Piping
•
Use piping with an inside diameter of 6 mm.
•
When using the device in a corrosive atmosphere, select piping appropriate to the environment of the installation location. For example, you may use the vinyl-coated copper pipe.
•
To prevent air leaks, be sure to use a fitting that is appropriate for the pipe.
6) Connection positions
The positions of the supply air connection port and output air connection port are shown
in the figure below. Select the dimensions of the connection port screws according to the
specifications.
Rc1/4 or 1/4NPT
Handling Precautions:
Output air connection port (OUT2)
(For double-acting actuator)
Figure 2-15. Pneumatic Piping Connection
When connecting the electromagnetic valve for emergency shutoff, air valve, or
other part, install it between the output air connection and the actuator rather
than the supply air connection side of the device.
2-12
Chapter 2 Installation of the 700 Series
7) Mounting procedure
The procedure for connecting pneumatic piping to operate the device is shown below.
StepDescription
Connect the joint for piping to the connection port using seal tape.
Handling Precautions:
•
1
Use seal tape as the seal material. Avoid using solid or liquid seal material
if possible.
•
Do not let the seal tape get in the piping.
•
If you do use a liquid seal, make sure that no drops of the seal material get
in the piping.
Connect the supply and output pipes to each joint in consideration of the arrangement of the piping.
Handling Precautions:
•
2
3After all piping is complete, make sure that air does not leak.
For the double-acting actuator, the connection between output air connection ports OUT1 and OUT2 and the actuator is determined by the
valve operation. Check the valve operation before connecting pipes.
•
Sufficiently flush piping before connection to prevent burrs on the piping
or other foreign objects from getting in the piping.
•
Keep the output air piping as short as possible.
2-13
Chapter 2 Installation of the 700 Series
M4 screw
for external grounding terminal
2-3-3. Electrical Wiring Connection
This section describes how to connect electrical wiring for signal inputs from the controller.
Turn the power off before starting wiring work. Otherwise, electric shock may occur.
When using the explosion-proof 700 Series in a dangerous place, be sure to connect the wiring while
following “Chapter 7. Notes on the Explosion-Proof 700 Series.”
Be sure to perform grounding work following the electrical work guidelines in each region.
Handling Precautions:
Be sure to attach a blind plug to the unused conduit connection port so that it is
completely covered.
WARNING
CAUTION
1) Connection positions
The figure below shows the terminal block in the terminal box.
for Fieldbus terminal
M4 screw
M4 screw
for internal grounding terminal
Figure 2-16. Terminal Block in the Terminal Box
2-14
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