CKD MEVT-T9GAR series User manual

-

‐

Please read this instruction manual

carefully before using this product, par-

ticularly the section describing safety

Retain this instruction manual with the

product for further consultation whenev-

er necessary

1

To use this product safety, basic knowledge of pneumatic

equipment, including materials, piping, electrical system

and mechanism, is required (ISO 4414 *1 JIS B 8370 *2).

We do not bear any responsibility for accidents caused by

any person without such knowledge or arising from im-

proper operation.

Our customers use this product for a very wide range of

applications, and we cannot keep track of all of them. De-

pending on operating conditions, the product may fail to

operate to maximum performance, or cause an accident.

Thus, before placing an order, examine whether the product

meets your application, requirements, and how to use it.

This product incorporates many functions and mecha-

nisms to ensure safety. However, improper operation could

result in an accident. To prevent such accidents

Observe the cautions on handling described in this manu-

al, as well as the following instructions:

Additionally, the caution is classified into the following

three groups, “CAUTION”, “WARNING”, and “DANGER”,

to identify the degree of the danger it presents and possible

hazard.

*1) ISO 4414 : Pneumatic fluid power Recommendations for

the application of equipment to transmission and

control systems.

*2) JIS B 8370 : General rule for pneumatic systems

2

Points to caution when handling the product

(1) Inferior quality air will deteriorate the product characteristics and affect its

durability badly. Use an air dryer, filter and Oil mist filter to eliminate solid

material, moisture and tar and thus provide clean air from the pressure

source.

When the control pressure decreases, for example, the air runs from the sec-

ondary side through the regulator to the exhaust port (R). Dust inside the

secondary side piping or the load circuit, therefore, will similarly deteriorate

the product’s characteristics and greatly affect its durability. Ensure the in-

terior of the piping is always clean.

(2) The products response capability will be affected by the working pressure

and load volume. When a stable response is required, regulate the

working pressure.

(3) Flush air into the pneumatic pipes employed in the PARECT

electro-pneumatic regulator before connection. Be careful not to allow

sealant tape to stray into the pipes.

(4) To avoid malfunction caused by electrical noise:

(a) Insert a line filter into the AC power line.

(b) Use a surge suppresser like a CR or diode in the inductive load (solenoid valve, relay and

so on) to remove any noise at the source.

(c) Keep the MEVT series cables as far away as possible from power line for motor.

(d) In the case of the influence of noise, each slave station can possibly be supplied the power

and wire individually.

(e) Wire the power line as short as possible.

(f) Don’t share the power with devices that generate the noise, such as inverter motor.

(g) Don’t wire the power line or communication line in parallel with other lines.

(5) Avoid unplanned dismantling of the product. We shall not warrant the

product operation in cases where it has been dismantled without

authorization.

(6) Avoid operating the product in places where it may be affected by direct

sunlight, water or oil.

(7) If the product remains connected to its supply pressure for a long time

while leaving the power turned off, the output pressure may increase to the

level of the supply pressure. For safety, when there is a problem, use the

valve on either the inlet or outlet side. It is recommended to set up the

system for safe operation.

Air filter

5m

Air dryer Oil mist filter

(Oil removing)

Pressure switch

Regulator

3

(8) If the power is turned off when the unit is up to control pressure, the pres-

sure will be maintained. In this case, if you need to be in an exhaust state,

lower the control pressure first and then turn off the power or use the ex-

haust valve. However, the maintained pressure is not guaranteed to last for

very long.

(9) Since the working pressure is supposed to provide the exact control pres-

sure, it is important for the working pressure not to drop below “Control

pressure + Maximum control pressure 0.1”.

In particular, if the primary pressure is supplied for a long period of time

with the secondary pressure specified in a range that exceeds 0MPa up to

12% F.S., this will shorten the life span of the product and thus the product

should not be used in this way.

(10) The MEVT Series regulators may oscillate if a leak occurs to the secondary

side piping. When connecting pipes to the regulator, connect them firmly

to prevent leaks. Do not use the regulator for blowing or in any other ap-

plication where the secondary side can be affected by back pressure. If

used in such applications, the regulator will not be able to achieve the spec-

ified pressure. Moreover, a large oscillation noise will be heard and the

product’s durability will be greatly reduced.

(11) Don’t supply the input signal over maximum control pressure, because an

excessive input signal exerts a bad influence on the deterioration of the

characteristic and also the durability.

(12) Keep the exhaust port (R) open to the air to allow the release of the exhaust

into the air.

(13) When it is maintained the condition where the power is on and the working

pressure isn’t supplied or the condition where the power is on and the input

signal is missing from the control range, the deterioration of the character-

istic and also life occur. Therefore, the product should not be used in this

way.

4

INDEX

MEVT Series

PARECT Electro-pneumatic Regulator

SERIAL TRANSMISSION TYPE (MEVT-T9GAR)

Manual No. SM-312366-A

1. DESIGN AND SELECTION  5

2. INSTALLATION  8

3. OPERATION  12

4. MAINTENANCE  14

5. PRODUCTS

5.1 General outline of the system 15

5.2 Structure of the System  16

5.3 Specifications  17

5.4 Dimensions  21

5.5 Switch and LED display  23

5.6 Inside structure  27

5.7 Component  27

5.8 Block constitution  28

5.9 Troubleshooting the slave station  29

6. WIRING  30

6.1 Communication line  31

6.2 Transmission distance  31

6.3 Communication line wiring  35

6.4 Power line wiring  37

6.5 Screw and tightening torque  39

6.6 Maintenance 39

7. HOW TO EXTEND EVT  40

8. PRODUCT CODE

8.1 How to order  43

8.2 Component code  44

5

6

7

8

.

9

10

11

12

Operating Conditions:

The pressure supplied to the electro-pneumatic regulator should be used in

the pressure range from the minimum operating pressure to maximum oper-

ating pressure that is specified in “5.3 Specifications”.

For supply power, use a stabilized power supply with the ripple rate 1% max.

at supply voltage 24 V DC+/-10%.

The input signal used and other working conditions should be based on “5.3

Specifications”.

Zero (Point) & Span Adjustment:

This product is factory adjusted for the specified control pressure output in

relation to each input signal before shipment.

As a rule, no zero & span adjustment change is allowed.

If zero & span adjustments are required at customer’s end, contact our near-

est sales office or agent.

However, it should be understood that the zero and span adjusted product is

out of warranty.

Air filter

5m

Air dryer Oil mist filter

(Oil removing)

Pressure switch

Regulator

13

14

15

5.1 General outline of the system

MEVT - -T9GAR- - -3

1) The MEVT - -T9GAR- - -3 is a PARECT Electro-pneumatic regulator

mounted with a slave station to the EVT-T9GAR which can be connected to

the open field network CC-Link. There are some following characteristics.

(1) It helps to curtail wiring man-hours since only the CC-Link cable is re-

quired to connect it to a PLC.

(2) Installation can choose which the under or back fixation.

(3) The HOLD/CLEAR switch can be used to hold or clear the output signal

during a communication fault or analog output permission signal is turned

off.

(4) The communication speed can be set to : 156k, 625k, 2.5M, 5M, 10M bps.

2) What are CC-Link ?

CC-Link, which is an open field network for FA purposes, reduces wiring of

I/O devices such as sensors and valves and intelligent devices such as high

speed counters and inverters, and the system can be controlled without con-

sciousness of communications..

It has the following features.

(1) CC-Link is the fastest network in the industry (10Mbps), and it can meet

requirements of sensors requiring quick responses and communication of

large volume data.

(2) The remote control that handles bit data and data communications that

handle word data (analog) can be made simultaneously, while the com-

munication time is fast and stable.

(3) An n-to-n cyclic transmission between controllers can be made, making

distributed control easier.

NOTE) Be sure to read the User’s Manual.

This manual mainly describes the MEVT - -T9GAR- - -3 and the

slave station EVT-T9GAR. Also, read the User’s Manual for the mas-

ter station and other slave stations to be connected to this system.

In addition, regarding the PARECT Electro-pneumatic Regulator,

please read this manual and the above manuals carefully to fully un-

derstand the functions and performance of the product to be able to use

it properly.

If the customer has any question about the CC-Link, contact the following home

page.

CC-Link Association

Home page address :

http://www.cc-link.org

16

5.2 Structure of the System

This system chiefly consists of PLC body, Master unit, the PARECT Elec-

tro-pneumatic regulator MEVT - -T9GAR- - -3 and peripheral equip-

ment.

Combination of PLC and Master unit

PLC Maker Type of CPU Type of Master Unit

MITSUBISHI

ELECTRIC

CORPORATION

For A series AJ61BT11

For AnS series A1SJ61BT11

For QnA series AJ61QBT11

For QnAS series A1SJ61QBT11

For Q series QJ61BT11

For FX series FX2N-16CCL-M

Personal computer (PCI bus) A80BD-J61BT11

NEC ,Ltd Personal computer (PCI bus) FC-UG-X002

etc. Various The Master Unit adaptable CC-Link

Fundamental structure of system

Master station  Station controlling remote I/O stations, remote device stations,

and local stations.

Remote I/O station  Remote station that handles ON/OFF data only.

Remote device station  Remote station that handles ON/OFF data and numerical data.

Local station  Station that has its own CPU and can communicate with

the master station and other local stations.

Intelligent device station  Station informed by the transient transmission.

(including the local station)

PLC

Remote I/O

station

Remote device

station

Manifold solenoid valve

(Remote I/O station)

CC

-

Link system

PLC

Local station

Master

station

Electro

-

pneumatic Regulator MEVT

(Remote device station)

17

5.3 Specifications

1) PARECT Electro-pneumatic Regulator (Individual)

1

Model

Item EVT100 EVT500

Media Cleaned air (equivalent to ISO 1 3 2)

Max. working pressure 200kPa 0.7MPa

Min. working pressure Control pressure Max. control pressure 0.1

Proof pressure Inlet side 300kPa 1.05 MPa

Outlet side 150kPa 0.75MPa

Pressure control range 0 to 100kPa 0 to 0.5MPa

Power supply voltage DC24V 10% (Stabilized power supply with a ripple rate of 1% or less)

Consumption current 0.1A or lower

Insulation resistance 100M (DC500V megger) or more

Withstand voltage AC 1500V 1 minute

Hysteresis

2, 3

0.4% F.S. or less

Linearity

2, 3

0.5% F.S. or less

Resolution

2, 3

0.1% F.S. or less

Repeatability

2, 3

0.3% F.S. or less

Temperature

characteristic

Zero point fluctuation 0.15% F.S. / or less

Span fluctuation 0.07% F.S. / or less

Max. flow rate (ANR)

4

2L / min 6L / min

Step response

5, 6

No load 0.1s or less

15cm

3

load 0.5s or less

Ambient temperature 5 to 50

Fluid temperature 5 to 50

Lubrication Nil

Indicator

7

Green/Red LED

Installation position Free

Working environment No corrosive gas

Dimensions W14 D75 H75

Mass (body) 80g

1 : The above specifications are valid when the product is powered by 24 0.15VDC at normal temperature.

2 : Accuracy of serial transmission department is not included.

3 : These specifications are valid at a working pressure which is “1.1 times the maximum control pressure”

(EVT100 : 110kPa, EVT500 : 0.55MPa) and control pressure is from 10 to 100%. It is also assumed that the sec-

ondary side circuit constitutes a closed circuit. If the product is used for such purposes as blowing, for example, a

pressure fluctuation may occur.

4 : Working pressure : Maximum operating pressure, Control pressure : Maximum control pressure

5 : Working pressure : Maximum working pressure, Step rate : 50% F.S. 100% F.S.

50% F.S. 60% F.S.

50% F.S. 40% F.S.

6 : Serial transmission delay is not included.

7 : Indicator is for a rough standard. Accuracy is not guaranteed.

2) PARECT Electro-pneumatic Regulator (Manifold specifications)

Item Specifications

Manifold type Block manifold

Installation type DIN rail mount type

Air supply and exhaust Concentrated supply and exhaust

Max. manifold number 12

8, 9

Port size Output port (A) 4 6 Push-in joint

Input port (P) Exhaust port (R) 4 6 Push-in joint

8 : Slave station is possible installation to maximum 3 units to one manifold.

9 : PARECT Electro-pneumatic regulator maximum 4 units to one slave station.

18

3) Slave station specification

Item Specifications

Power supply voltage (Slave side) DC24V 10% (Stabilized power supply with a ripple rate of 1% or less)

Consumption current (Slave side) 80mA or lower (Except for load current)

Ambient temperature 5 to 50

Ambient humidity 30 to 85%RH (No dew fall)

Working environment No corrosive gas

Object of communication CC-Link Ver1.10 conformance

Transmission speed 156k/625k/2.5M/5M/10M bps (Selectable by switch)

Max. number of Input / Output (AD/DA) 4 / 4

DA

output

Pressure set ting data 12 bit

Accuracy 1%F.S. or less (Accuracy of EVT is not included.)

AD

input

Pressure monitoring data 12 bit

Accuracy 6%F.S. or less (Accuracy of EVT’s monitoring voltage is included.)

Fuse Slave power supply 24V 2A

No. of monopolized stations 1 station (Remote device station)

19

4) Profile

Remote register signal list

EVT-T9GAR Master Master EVT-T9GAR

Remote Input

(RX) Name Remote Output

(RY) Name

RXn0 CH1 A/D conversion completion flag RYn0 CH1 Analog output permission signal

RXn1 CH2 A/D conversion completion flag RYn1 CH2 Analog output permission signal

RXn2 CH3 A/D conversion completion flag RYn2 CH3 Analog output permission signal

RXn3 CH4 A/D conversion completion flag RYn3 CH4 Analog output permission signal

RXn4 Reserve RYn4 Not used

RXn5 Reserve RYn5 Not used

RXn6 Reserve RYn6 Not used

RXn7 Reserve RYn7 Not used

RXn8 Not used RYn8 Not used

RXn9 Not used RYn9 Not used

RXnA Not used RYnA Not used

RXnB Not used RYnB Not used

RXnC Not used RYnC Not used

RXnD Not used RYnD Not used

RXnE Not used RYnE Not used

RXnF Not used RYnF Not used

RX(n+1) 0 Reserve RY(n+1) 0 Reserve

RX(n+1) 1 Reserve RY(n+1) 1 Reserve

RX(n+1) 2 Reserve RY(n+1) 2 Reserve

RX(n+1) 3 Reserve RY(n+1) 3 Reserve

RX(n+1) 4 Reserve RY(n+1) 4 Reserve

RX(n+1) 5 Reserve RY(n+1) 5 Reserve

RX(n+1) 6 Reserve RY(n+1) 6 Reserve

RX(n+1) 7 Reserve RY(n+1) 7 Reserve

RX(n+1) 8 Not used RY(n+1) 8 Not used

RX(n+1) 9 Not used RY(n+1) 9 Not used

RX(n+1) A Not used RY(n+1) A Not used

RX(n+1) B Remote READY RY(n+1) B Vacant

RX(n+1) C Not used RY(n+1) C Not used

RX(n+1) D Not used RY(n+1) D Not used

RX(n+1) E (Reserve QnA) RY(n+1) E (Reserve QnA)

RX(n+1) F (Reserve QnA) RY(n+1) F (Reserve QnA)

Address given to the master unit according to the station number setting

Details of remote I/O signals

Device No. Signal name Description

RXn0 3 A/D conversion com-

pletion flag

The signal is turned on upon completion of first A/D conversion after power-on.

Once the signal is turned, it is not turned off (during correct communication).

Conversion is made in four channels without relations to the number of con-

nected load units (EVT). After the signal is turned on, save the digital output

value (monitored pressure data).

RX(n+1) B Remote ready

The signal is turned on after power-on. Once the signal is turned on, it is not

turned off (during correct communication). The signal is used to interlock in the

reading/writing cycle of the master unit.

RYn0 3 Analog output per-

mission signal

Analog value output permission signal. The analog value (output voltage added

to the load (EVT)) is issued after this signal is turned on. The analog output is

not output if this signal is turned off.

The state of the load (EVT) follows the setting of the output selection switch of

the slave station in the output prohibition state.

- HOLD: The output data sent to the EVT immediately before the output is

prohibited is held.

- CLEAR: The output data sent to the EVT is reset to "0."

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CKD MEVT-T9GAR series User manual

CKD MEVT-T9GAR series User manual

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