Traditional Culture Encyclopedia - The 24 Solar Terms - Who has the instruction manual of ND9000 intelligent valve positioner? Thank you.

Who has the instruction manual of ND9000 intelligent valve positioner? Thank you.

principle of operation

ND9 100H is an intelligent valve controller based on microprocessor technology, which uses a 4-20mA power supply circuit and supports a minimum input signal of 3.6mA when operating equipment with HART communicator. Local operation can use the local user interface of the controller, and remote operation requires a computer with field software installed, which must be connected to the ND9 100H ontology or control loop.

The valve position is controlled by a powerful 32-bit microprocessor, and the relevant measured parameters include input signal, valve position with contactless sensor, actuator pressure (two independent measured values), air source pressure, slide valve and equipment temperature.

Advanced self-diagnosis technology ensures that all measurement functions work normally. When the input signal and valve position measurement are normal, any other measured failure will not lead to valve failure. After the electrical signal connection and cylinder air source connection are completed, the microprocessor (? C, refer to Figure 5- 1, the same below) to read the input signal, the measured value of position sensor (α), the measured value of pressure sensor (Ps, P 1, P2) and the measured value of slip sensor (SPS). Embedded? After the control algorithm in C detects that the input signal deviates from α, new values are calculated based on the data from the input signal and the sensor respectively, and sent to the pre-stage (PR) coil circuit. Changing the current input of PR correspondingly changes the control pressure of the slide valve. The reduced control pressure moves the spool of the slide valve and changes the pressure of the actuator accordingly. After the valve core is opened, the gas flows to the driving side of the double-film actuator and is discharged from the other side of the actuator. The increased pressure will move the membrane and drive the actuator and the feedback lever or shaft to rotate clockwise. The position sensor (α) measures the amount of rotation and sends it to? C is medium. Use control algorithm? C, starting to adjust the current in PR, starting from a stable state until the generated new value makes the actuator state reach a state corresponding to the input signal value.

2. Installation method and electrical connection

(1) Installation method

ND9 100H has strong adaptability, and there are four installation methods, namely, it is installed in EC/EJ actuator, through the Metso automatic actuator of VDI/VDE, through the straight-stroke actuator of NelesCV ball valve, and through the straight-stroke actuator of IEC60534. See Figure 5-2 for the specific assembly drawing.

The layout and specifications of the pipeline are specified in detail. Take the double-acting actuator as an example, as shown in Figure 5-3.

Figure 5-3 Double-acting actuator Figure 5-4 is installed on the EC /EJ actuator.

Connect the air source to (G 1/4)S, and connect C 1 and C2(G 1/4) to the actuator. If ND9 100H is installed in EC/EJ actuator, C 1 and C2(G 1/4) must be plugged tightly to ensure safety. If necessary (EJ05), an assembly gasket can be used.

(2) Electrical connection

ND9 100H adopts standard 4-20mA power supply circuit, which is the same as HART communicator. M20× 1.5 cable is used for the input signal line, and the conductor is connected to the terminal (Figure 5-5). It is suggested that the protective grounding of input signal line should only be led out from the end of DCS.

A position transmitter requiring an external power supply is connected to two terminals of the PT. ND9 100H and position transmitter can be electrically insulated from 600V AC.

(3) Debugging

A. After the equipment is powered on, it will automatically enter the display interface. The menu structure is shown in figure 1.

Remarks: 1. To view the currently selected physical quantity unit, press until11or ANG is displayed on the top line of the screen.

2. Press and hold to display the currently selected unit, and then use or to change it.

3. The equipment is left idle for one hour, and no one touches the instrument. The above five parameter values are displayed in the measurement unit in a rolling way.

B, boot up

In this case, we can quickly check the configuration of key parameters related to ND9 100H regulator, actuator and valve. See table 1 for the corresponding meanings of specific parameters and their operation methods.

Screen display character

Corresponding meaning

Optional parameters and their meanings

VTYP

Valve type

L ln (straight stroke) /rot (angular stroke) /ncG (only applicable to nelesCV ball valves of MEYSO neles series products)

ATYP

Action type

2-A (double action)/1-A (single action)

1- fructose-phosphate aldolase

Action mode of positioner in fault state

OPE (open valve when fault is detected) /CLO (close valve when fault is detected)

decompose

Direction of rotation when closing the valve

CC (close the valve clockwise) /ccC (open the valve counterclockwise)

zero-signal zone

0.0%, use or resize the percentage value.

Table 1 view of key parameters and their corresponding meanings

C, parameter setting

face value

Characters on the screen and their meanings

Optional parameters and their meanings

PERF selects the valve action speed.

A (extremely fast) /b (fast) /c (default) /d (slow) /e (extremely slow)

CUTL prevents the valve seat from being damaged due to quick closing.

2.0% (default)

DIR defines whether the valve is open or closed with the increase of current loop signal.

Open (open)

VTYP valve type

See the previous page.

ATYP action type

See the previous page.

PFA defines the valve action when the positioner fails.

CLO (fully closed valve when fault is detected) /OPE (fully opened)

decompose

Direction of rotation when closing the valve

See the previous page.

A0 dead zone

See the previous page.

choice of language

English/German/French

Table 2 All parameters and their meanings

Method for enter parameter set interface

1. Long press to enter the main menu interface ("Mode" is displayed first);

2. Press to display "PAR", which is the name of the main menu of parameter setting;

3. Press the Start key to check and set parameters and other debugging work.

Application mode

1. When a parameter appears on the screen, press it a little hard, and the following line of optional parameters will start flashing, and then enter the editing state;

2. Use and make a choice;

3. Used to confirm the operation and exit the editing state at the same time.

D, check

Detection only works in automatic mode.

Method for enter verification interface

1. Long press to enter the main menu interface ("Mode" is displayed first);

2. Press once or twice to display "CAL", which is the verification menu;

3. Press "Start" for debugging.

"Automatic calibration" is an automatic check;

"Manual calibration" is a manual inspection;

"Tuning" means self-diagnosis function;

"Calibration Run" indicates that verification is in progress.

Application mode

1. Press and select "Auto Calibration" or "Manual Calibration" or "Tune" (using self-diagnosis function and ready to start calibration);

2. In the first two cases, you need to further choose whether to use the self-diagnosis function;

3. The verification will end automatically, and press "CAL" to return to the main menu.

E. Others

(A) the main menu structure

The main menu consists of three items, namely "Mode" (select automatic or manual mode), "PAR" (parameter setting menu) and "CAL" (verification menu). "PAR" and "CAL" have been explained above. Let's briefly introduce the "Mode" menu. Press and hold, then press to view the displayed Mode, then press to enter and select Auto (automatic mode) or Manual (manual mode).

1. In the "automatic" state, the action of the valve positioner is controlled by 4 ~ 20mA signals.

2. In the "MAN" state, the action of the valve positioner is controlled by and on the keyboard. Note that in manual mode, the locator memory does not remember every adjustment position. After the signal is lost, the valve will not return to its original position. Only and can be used to restore the valve to its original position.

(2) HART write protection

By default, the HART write protection switch is turned off, and its location is shown in Figure 5. HART cannot modify any parameters after the write protection function is turned on.

(3) Special display

The so-called "special display" is aimed at the following situations.

F, symbol description

1. flag

When the header is locked, you can only view the measured values, and you cannot use the buttons on the header to modify the parameters. However, you can use HART to modify the parameters. When this happens, check whether the position of the switch "1" (see Figure 5) is "ON" or "OFF", and the symbol disappears when it is in the "OFF" state.

Step 2 mark

This is the display corresponding to the online alarm function. When the online alarm signal is detected, the symbol will be displayed on the screen until the fault causing the alarm is solved.

Diagnostic alarm limits are divided into "alarm" and "warning", which belong to online diagnosis. When the alarm level is exceeded, the generator should be maintained and controlled as soon as possible to avoid shutdown due to improper valve operation. When "х" is displayed on the panel, it means that the alarm information has been detected online. Before adding-you can press the c key to view the alarm content, and the panel will scroll to display the alarm information. When PFA is displayed on the panel, it means that the equipment is in a fail-safe state and the valve will be in a preset state (fully open or fully closed).

You can see the contents of the alert by pressing it first, and then pressing it to see a line of text scrolling in the top line of the screen (the text content is displayed twice). Record the text content and compare it with the error information table in Chapter 6 of the manual, and then you can analyze what the fault is and how to solve it.

3. Check the latest locator events.

Click it first, then click it again, and you see the top line of the screen, and a line of text is scrolled (the text content is displayed twice).

4. Failsafe state

This is an automatic protection setting. When the key equipment and its parameter values (preset value, valve position, control signal, etc. ) is detected to be faulty or wrong, the positioner will enter this state and act according to OPE or CLO set by PFA parameters to provide protective measures in case of emergency.

Phenomenon: A line of text is scrolled on the top of the screen, and the word "PFA" is displayed on the bottom line. At this time, the locator can't operate at all, and the key doesn't work. Only after solving the problem that caused the failure and restarting the ND9 100H device can the instrument work normally.

G, repair and maintenance

The maintenance of ND9 100H valve positioner depends on the working environment and conditions, such as the quality of air source, which is not required under normal working conditions.

Before overhauling ND9 100H, make sure that the air supply is disconnected. The ND9 100H valve controller includes the following replaceable modules: front unit, slide valve assembly unit with sensor and communication panel with optional position transmitter. These modules are fixed under the cover. If a module fails, it must be replaced with a new module and assembled in a clean and dry environment. After reassembly, coat the screws with locking oil (such as Le Tai 243) and tighten them.

A. Early stage

Be very careful when removing the front stage, especially when removing the shell. The removed part cannot be tampered with. Use a screwdriver to remove the M4 screw and remove the front housing. Unplug the front wiring from the circuit board of the sliding sensor, continue to remove the two M4 screws on the slide valve cover, vertically remove the front module, and finally remove the O-ring.

When installing, put the new O-ring into the groove of the slide valve, and then put the front stage into it. Make sure that the nozzle is just inserted into the O-ring. Use screws to restore the front-stage main body to the correct position, and tighten the screws evenly. Reinsert the front bipolar cable connector into the sliding sensor circuit board. The connector has the function of preventing wrong insertion. Finally, cover the front housing and tighten the screws.

B. slide valve assembly

Only after the front stage is removed can the slide valve be removed. Remove three M4 screws and two M3 screws, and remove the slide valve assembly. If necessary, clean the slide valve according to the environmental cleanliness requirements and appropriate steps. After removing the three M4 screws, take the slide valve out of the fixed groove vertically, and hold the end of the valve body tightly with your fingers to prevent the valve core from falling off. Carefully clean the holes in the valve core and valve body, and be careful not to let sanitary ware fibers stick to the holes in the valve core and valve body, and do not scratch the joint of the valve core and valve body. The throttle valve is installed under the slide valve in the fixed groove, and it should be cleaned after removing the slide valve. Note that each spool corresponds to a unique spool, so the spools cannot be interchanged and the orientation of the spools cannot be changed (as shown in the lower right corner of Figure 5-6).

When reassembling, make sure that the gasket is correctly stuck in the groove at the bottom of the slide valve assembly. Install the slide valve into the fixing groove and tighten three M4 screws and two M3 screws. Confirm that the O-ring is in complete contact with the inner side of the groove, and finally install the upper pre-stage unit directly according to the above steps.

C. communication circuit board

Loosen M8 countersunk screw on the position indicator and remove the position indicator from the shaft. Remove the front housing, and further remove the circuit board cover fixed with 4 M3 screws. Pay attention to discharging your static electricity before touching the circuit board. Remove four M3 fixing screws and take the circuit board out vertically. Handle the circuit board carefully, preferably only touching the edge of the circuit board. Reinstallation is the reverse of the above steps. Figure 5-7 shows the outline of the communication circuit board.

D. limit switch

The limit switch is an optional component, and the controller of our company is equipped with ND9 100H/K05 limit switch (see Figure 5-9).

The limit switch is installed as follows:

If the controller has been installed on the actuator or valve, make the actuator in the fully closed or fully open position. Remove the controller housing, position indicator, LUI (local user interface) and electrical cover. Rotate the shaft to the initial position and tighten the screws coated with Le Tai. Install the electric cover and the outer frame of the controller, and toggle the cam to avoid touching the microswitch. Install LUI on the bracket and position indicator on the shaft. The limit switch installed for the first time should also be debugged.

Figure 5-9 Front Circuit Board with Limit Switch Figure 5- 10 Debugging Schematic Diagram of Limit Switch

When debugging the limit switch, it is necessary to remove the position indicator. If the limit switch is ordered at the same time as the valve and actuator, it has been debugged by the factory. After changing the position of the cam plate on the shaft, it must be readjusted. The switch is closed below the limit closed position and above the limit open position.

Corresponding to the fully closed and fully opened positions of the actuator, toggle the cam plate to determine the switch position, so that the switch position changes by 5-6 before the limit. If the actuator is reinstalled, first adjust the mechanical position of the actuator according to the valve position, then adjust the controller, and finally determine the position of the limit switch. After debugging, turn on the position indicator until the yellow line is parallel to the valve closing.

Finally, use Figure 5- 1 1 and Figure 5- 12 to briefly explain the parts location and names of ND9 100H. See Table 5- 1 and Table 5-2 for the corresponding text descriptions.

Screen display character

Corresponding meaning

Optional parameters and their meanings

VTYP

Valve type

L ln (straight stroke) /rot (angular stroke) /ncG (only applicable to nelesCV ball valves of MEYSO neles series products)

ATYP

Action type

2-A (double action)/1-A (single action)

1- fructose-phosphate aldolase

Action mode of positioner in fault state

OPE (open valve when fault is detected) /CLO (close valve when fault is detected)

decompose

Direction of rotation when closing the valve

CC (close the valve clockwise) /ccC (open the valve counterclockwise)

zero-signal zone

0.0%, use or resize the percentage value.

Table 1 view of key parameters and their corresponding meanings

C, parameter setting

face value

Characters on the screen and their meanings

Optional parameters and their meanings

PERF selects the valve action speed.

A (extremely fast) /b (fast) /c (default) /d (slow) /e (extremely slow)

CUTL prevents the valve seat from being damaged due to quick closing.

2.0% (default)

DIR defines whether the valve is open or closed with the increase of current loop signal.

Open (open)

VTYP valve type

See the previous page.

ATYP action type

See the previous page.

PFA defines the valve action when the positioner fails.

CLO (fully closed valve when fault is detected) /OPE (fully opened)

decompose

Direction of rotation when closing the valve

See the previous page.

A0 dead zone

See the previous page.

choice of language

English/German/French

Table 2 All parameters and their meanings

Method for enter parameter set interface

1. Long press to enter the main menu interface ("Mode" is displayed first);

2. Press to display "PAR", which is the name of the main menu of parameter setting;

3. Press the Start key to check and set parameters and other debugging work.

Application mode

1. When a parameter appears on the screen, press it a little hard, and the following line of optional parameters will start flashing, and then enter the editing state;

2. Use and make a choice;

3. Used to confirm the operation and exit the editing state at the same time.

D, check

Detection only works in automatic mode.

Method for enter verification interface

1. Long press to enter the main menu interface ("Mode" is displayed first);

2. Press once or twice to display "CAL", which is the verification menu;

3. Press "Start" for debugging.

"Automatic calibration" is an automatic check;

"Manual calibration" is a manual inspection;

"Tuning" means self-diagnosis function;

"Calibration Run" indicates that verification is in progress.

Application mode

1. Press and select "Auto Calibration" or "Manual Calibration" or "Tune" (using self-diagnosis function and ready to start calibration);

2. In the first two cases, you need to further choose whether to use the self-diagnosis function;

3. The verification will end automatically, and press "CAL" to return to the main menu.

E. Others

(A) the main menu structure

1. In the "automatic" state, the action of the valve positioner is controlled by 4 ~ 20mA signals.

(2) HART write protection

By default, the HART write protection switch is turned off, and its location is shown in Figure 5. HART cannot modify any parameters after the write protection function is turned on.

(3) Special display

The so-called "special display" is aimed at the following situations.

F, symbol description

1. flag

Step 2 mark

This is the display corresponding to the online alarm function. When the online alarm signal is detected, the symbol will be displayed on the screen until the fault causing the alarm is solved.

3. Check the latest locator events.

Click it first, then click it again, and you see the top line of the screen, and a line of text is scrolled (the text content is displayed twice).

4. Failsafe state

G, repair and maintenance

The maintenance of ND9 100H valve positioner depends on the working environment and conditions, such as the quality of air source, which is not required under normal working conditions.

A. Early stage

B. slide valve assembly

C. communication circuit board

D. limit switch

The limit switch is an optional component, and the controller of our company is equipped with ND9 100H/K05 limit switch (see Figure 5-9).

The limit switch is installed as follows:

Figure 5-9 Front Circuit Board with Limit Switch Figure 5- 10 Debugging Schematic Diagram of Limit Switch

Finally, use Figure 5- 1 1 and Figure 5- 12 to briefly explain the parts location and names of ND9 100H. See Table 5- 1 and Table 5-2 for the corresponding text descriptions.

Table 5- 1 ND9 10H Parts List

numerical symbols

amount

describe

outline border

eight

exhaust hood

nine

screw

1 1

shaft lever

Type ring

Make beds for livestock.

Smalley

axle bush

earthing screw

Electrical cover

Forty two.

four

screw

Early cover

Forty-four

screw

three

screw

Forty nine

screw

100

Shell ×

107

four

screw

109

Position indicator

1 10

Countersunk screw

120

Preceding unit x

139

screw

193

Slide valve assembly ×

2 10

Controller circuit board

2 15

Communication circuit board ×

2 17

four

screw

2 18

strutting piece

2 19

screw

220

Hexagonal isolation column

22 1

three

Type ring

222

Reverse current device

223

Local user interface ×

228

screw

note:

1."×" mark indicates that this part is optional;

2. The installation part has 12 connectors and 14 screws.

Table 5-2 Parts List of Nd9100h/K00 (100)

numerical symbols

amount

describe

earthing screw

100

shell

107

four

screw

109

Position indicator

1 10

screw

223,

Local user interface

300

outline border

30 1

pad

302

screw

303

four

screw

304

support

305

screw

306

LUI brackets

307

three

screw

308

screw

3 1 1

shaft lever

3 12

screw

3 13

lobe plate

3 14

screw

3 15

six

Terminal board/terminal board

346

Bushing (100)

347

Proximity switch (100)

348

mounting plate

349

screw

350

Make beds for livestock.

35 1

screw

355

Micro switch (K00)

357

Spring washer (K00)

358

Screw (K00)

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