Siemens Bently Nevada 3500 Proximitor Betriebsanleitung

Siemens AG

Sector Industry, I&S IS ICS2 KHC

P.O.Box 3240

D-91050 Erlangen

E-Mail: [email protected]

Maintenance / Trouble Shooting

Bentley Nevada 3500, Proximitor

This document has been prepared for the purpose of training. It is based on the

respective operation and maintenance manuals. Operation and maintenance must be

performed in accordance with the operating and maintenance manuals!

Section 3 — Common maintenance procedures

3. Common maintenance procedures

Once a 3500 Monitoring System is operating, it continuously measures and

monitors a variety of supervisory parameters. The boards and components

inside of 3500 modules cannot be repaired in the field and require no calibration.

This section provides information for common tasks required under normal

operating condititions. For procedures that require more detailed information,

refer to the reference manuals listed in Reference manuals for 3500 modules on

page iv.

This section includes the following topics:

• Changing configuration

• Replacing modules

• Verifying channels

3.1 Changing configuration

The process of setting system, module, and channel options so that all the

modules in the 3500 rack work together is called configuration. These settings

are established and adjusted by using the 3500 Rack Configuration program.

Configuration settings are usually protected by security settings. The security

setting for a typical 3500 Monitoring System that is operating normally is

“Change Setpoints in Program Mode”. This section shows how to adjust

setpoints. To change other configuration settings, refer to the 3500 Monitoring

System Rack Configuration and Utilities Guide, part number 129777-01.

To adjust alarm setpoints

1. Place the rack in program mode by using the key switch on the Rack

Interface Module.

2. In the 3500 Rack Configuration program, click the Setpoints pushbutton.

3. Click on the monitor module to be adjusted.

The Configuration Setpoint dialog for that monitor module will appear.

3500 Monitoring System Installation and Operation Guide

4. Select the monitor channel to be adjusted in the Monitor Channel list box.

5. For all measurement parameters except phase, adjust the setpoint level by

dragging the bar in the bar graph or by entering a value in the text box above

or below the parameter.

Notice that setpoints can be adjusted only for those parameters that are

enabled and that some parameters have both upper and lower setpoint

values. Parameters are enabled or disabled by using the Channel Option

screen. Refer to the 3500 Monitoring System Rack Configuration and

Utilities Guide for more information.

6. For phase setpoints, enter the values for the beginning and ending setpoint in

the text boxes below the phase diagrams.

7. Apply the adjusted setpoints to the rack by clicking OK and then downloading

the revised configuration to the rack.

3.2 Replacing modules

The boards and components inside of 3500 modules cannot be repaired in the

field and require no calibration. For 3500 modules that are not operating

properly, use the information in this section to replace the module with a spare

and then contact your local Bently Nevada representative for information about

returning the faulty module for failure analysis.

3.2.1 Replacing a main module

1. Save the configuration of the module to be replaced.

3500 modules must have valid configuration settings in order to operate

properly. Replacement modules are not configured. By saving the

configuration, you can download the original configuration settings to the

replacement module.

The 3500 Monitoring System Configuration and Utilities Guide, part number

129777-01, shows how to save configuration files.

Section 3 — Common maintenance procedures

2. Remove the module to be replaced.

Refer to Removing and inserting a main module on page 24.

3. Insert the new module

Refer to Removing and inserting a main module on page 24.

4. Download the configuration to the new module.

The 3500 Monitoring System Configuration and Utilities Guide, part number

129777-01, shows how to download configuration files.

5. Verify operation.

- Check that the LEDs for the replaced module are indicating correct

operation (see Reading the LEDs on page 16).

- The values of the measurement parameters of a channel are verified by

using the Verification utility in the 3500 Rack Configuration program and

the verification procedure in the reference manual for that module.

3.2.2 Replacing an I/O module

This procedure applies only to the I/O module of a monitor or the PIM of a power

supply that is to be replaced. Prior to removing any module, refer to the

applicable reference manual to see how rack behavior may be affected and for

any special handling requirements required for personal safety.

1. If necessary, upload and save the configuration of the module to be replaced.

3500 modules must have valid configuration settings in order to operate

properly. Replacement modules are not configured. By saving the

configuration, you can download the original configuration settings to the

replacement module.

The 3500 Monitoring System Configuration and Utilities Guide, part number

129777-01, shows how to save configuration files.

2. Remove the main module from the rack.

Refer to Removing and inserting a main module on page 24.

3. Remove the field wiring from the I/O module.

If the wires connected to the I/O module are not labeled, label the wires

before you remove them.

4. Remove the old I/O module from the rack.

5. Install the new I/O module into the rack.

6. Connect the field wiring to the new I/O module.

7. Install the main module into the rack.

Refer to Removing and inserting a main module on page 24.

8. Download the configuration to the new module.

The 3500 Monitoring System Configuration and Utilities Guide, part number

129777-01, shows how to download configuration files.

9. Verify operation.

3500 Monitoring System Installation and Operation Guide

- Check that the LEDs for the replaced module are indicating correct

operation (see Reading the LEDs on page 16.

- The values of the measurement parameters of a channel are verified by

using the Verification untility in the 3500 Rack Configuration program and

the verification procedure in the reference manual for that module.

3.2.3 Removing and inserting a main module

When performed properly, modules may be removed from or installed into the

rack while power is applied to the rack.

3.2.3.1 To remove the old full-height module

This procedure shows how to remove any full-height 3500 module. Refer to the

reference manual for the module for details and safety considerations.

1. Loosen the screws to the main module so that they are free of the rack

chassis, but still attached to the main module.

2. Use the ejectors to pry the main module loose from the backplane

connectors.

3. Once freed from the backplane, the main module can be removed completely

from the rack

Section 3 — Common maintenance procedures

3.2.3.2 To install a spare full-height module

1. Ensure that the ejectors are in their normal position, flush with the front of the

module.

2. Slide the main module into place, ensuring that they are properly in the

guides provided on the floor and roof of the rack chassis.

3. Tighten the screws securely.

Application Advisory: It is important to tightly secure the thumb screws to

ensure each module is Chassis grounded. Loose thumb screws may allow noise

to show on the channel readings.

3.2.3.3 To add or remove a half-height card guide

Installing the card guide Removing the card guide

3500 Monitoring System Installation and Operation Guide

3.3 Verifying channels

The boards and components inside of 3500 modules cannot be repaired in the

field. Maintaining a 3500 rack consists of testing module channels to verify that

they are operating correctly. Modules that are not operating correctly should be

replaced with a spare. When performed properly, modules may be removed

from or installed into the rack while power is applied to the rack.

The 3500 Monitoring System is a high precision instrument that requires no

calibration. The functions of the 3500 modules, however, must be verified at

regular intervals. All modules in the 3500 Monitoring System should be verified at

these maintenance intervals. The procedures in the Maintenance and

Troubleshooting sections of the module reference manuals describe the

verification and troubleshooting process. (Refer to the reference manuals listed

in Reference manuals for 3500 modules on page iv.)

Maintenance 3500/42 Operation and Maintenance

184

5.2 Adjusting the Scale Factor and the Zero

Position

This section shows how to adjust the transducer scale factor and the transducer

position, or "zero". The Scale Factor Adjustment can be used to accommodate

any deviations in transducer scale factor as measured on the installed

transducers. Do not use the procedure to compensate for any errors within the

monitor and the I/O module. If a monitor does not meet specifications, exchange

it with a spare and return the faulty module to Bently Nevada Corporation for

repair. The newly installed spare module should be properly configured and

tested.

Adjusting the scale factor affects the readings of all configured parameters

associated with the channel. If you change the scale factor, be sure to use the

new value when calculating inputs for verification of channel values.

The Zero Position Adjustment is used for Thrust, Eccentricity, and Differential

Expansion measurements as well as for Gap measurements when Gap is

configured to read in displacement units (not volts). Adjust the zero position after

the probe is gapped and its target is in the proper position.

Both adjustment procedures consist of using the Rack Configuration Software to

upload the configuration from the rack, change the setting for scale factor or zero

position, and then downloading the new configuration back to the rack. You can

adjust these settings using the following two methods:

enter a new value in the scale factor box on the transducer screen or the zero

position box on the Channel Options screen.

use Adjust to get immediate feedback from the channel on the Adjust screen.

The advantage of using the Adjust screen is that you can use the bar graphs to

see the effect of your adjustments on the output signals of the channel. The

following procedures show how to use the methods.

5.2.1 Adjusting the Scale Factor

1. Connect the configuring computer to the rack using one of the methods listed

in the 3500 Monitoring System Rack Configuration and Utilities Guide (part

number 129777-01).

2. Run the Rack Configuration Software.

3. Initiate communication with the rack by clicking on the Connect option in the

File menu and then selecting the connection method that you used in step 1.

4. Upload the configuration from the rack by clicking on the Upload option in the

File menu.

5. Click on the Options button on the 3500 System Configuration screen.

3500/42 Operation and Maintenance Maintenance

185

6. Select the monitor you want to adjust. The Monitor screen will appear.

7. Select the Options button under the appropriate Channel. The configured

Channel Options screen will appear.

8. Select the Customize button in the Transducer Selection box. A Transducer

screen will appear.

9. Enter a value for scale factor in the Scale Factor box. If you go to the Adjust

screen by selecting Adjust, be sure to adjust the input to the channel away

from the Zero Position so you can adjust the scale factor and see the results.

10. Return to the 3500 System Configuration screen by clicking on the OK

buttons of the successive screens. The new scale factor is now added to the

configuration for this channel.

11. Download the new configuration to the appropriate monitor by selecting

Download from the File menu. The new setting for scale factor will take

effect when the "Download successful" prompt appears.

5.2.2 Zero Position Adjustment Description

When adjusting the Zero Position voltage, you are

defining the transducer voltage corresponding to the

position of the zero indication on a bar graph display

(refer to the adjacent figure).

For maximum amount of zero adjustment, gap the

transducer as close as possible to the ideal zero

position voltage based on the full-scale range and

transducer scale factor. For a mid-scale zero, as in

the example, the ideal gap is the center of the range.

The tables below specify the center of the range for

each transducer and monitor type. -25

-20

-15

-10

-5

Thrust Position

Bargraph

Maintenance 3500/42 Operation and Maintenance

186

Radial Vibration Ok Limits and Center Gap Voltage

Transducer Upper Ok Limits Lower Ok Limits Center Gap Voltage

w/o

barrier

(v)

w/ barrier

(v) w/o

barrier(v) w/ barrier

(v) w/o

barrier (v) w/ barrier

(v)

3300 5mm -16.75 -16.75 -2.75 -2.75 -9.75 -9.75

3300 8mm -16.75 -16.75 -2.75 -2.75 -9.75 -9.75

7200 5mm -16.75 -16.75 -2.75 -2.75 -9.75 -9.75

7200 8mm -16.75 -16.75 -2.75 -2.75 -9.75 -9.75

7200 11mm -19.65 n/a -3.55 n/a -11.6 n/a

7200 14mm -16.75 n/a -2.75 n/a -9.75 n/a

3000 (18V) -12.05 n/a -2.45 n/a -7.25 n/a

3000 (24V) -15.75 n/a -3.25 n/a -9.5 n/a

3300 RAM -12.55 -12.15 -2.45 -2.45 -7.5 -7.3

3300 16mm

HTPS -16.75 n/a -2.75 n/a -9.75 n/a

Note: With Barriers includes BNC Internal Barrier I/O Modules.

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