SKF 震动测量仪

SKF Reliability Systems

Juhani Hoikkanen

INSTRUCTIONS FOR

VIBRATION MEASUREMENTS OF

ABB Azipod PROPELLER SHAFT

BEARINGS WHEN USING

?SKF Microlog GX data collector

?SKF Machine eRoute software 22 Sep 2009

Instructions for Vibration Measurements of ABB

Azipod Propeller Shaft Bearings:

?Installation of SKF Machine eRoute Software,

?Operation with SKF Microlog GX Data Collector.

The following steps are necessary for successful condition

monitoring vibration measurements of ABB Azipods:

1.SKF Machine eRoute software installation on PC (if not yet done).

2.Set up and check communication between SKF Machine eRoute

software and SKF Microlog.

3.Clear old measurement data from Microlog, synchronize PC and

Microlog clock, and Transfer (download) measurement route (point setup) from PC to Microlog memory.

4.Check Microlog configuration.

5.Make vibration measurements including:

a.Manual input of actual propeller rotating speed (and other

process parameters)

b.Vibration measurements

c.Sensor Bias voltage measurement

6.Transfer measurement data from Microlog to PC (upload).

7.Send measurement data (upload file) to ABB.

1. SKF Machine eRoute software installation on PC

1.Copy files from the attached support CD named SKF MARemote to the hard

disc of your PC into a directory of your own choice (Usually under the folder C:\Program Files\...)

2.SKF Machine eRoute will be run just executing the file MARemote.exe. For

your convenience, you can make a shortcut on desktop or in start menu.

3.It is recommended to copy also the point setup file “Remote Route Download

File SOA II 2009.dskf” from CD to the hard disk of your PC.

2. Check Communication between Machine eRoute software and Microlog GX.

1.Run SKF Machine eRoute software in PC. (Execute file MARemote.exe)

2.Check communication parameters in Machine eRoute software: Go to

and then . Select Tab . Select:

- Comm: Serial

- Port: Com1

- Serial port baud rate: 115,2K.

3.Power up Microlog GX

4.On Main screen of Microlog, select and press Setup

icon. Check Microlog communication parameters

from list:

- Baud rate: 115200

Press Apply to return to main menu

5.Connect RS 232 cable between Microlog and PC’s

Com1 port.

6.Check Microlog communication and status in

Machine Remote Route software:

If communication is OK, eRoute software displays

text “Microlog ready” on bar on top of the transfer

Window. If not check communication parameters

and cable connection.

Select Tab

Device status information and measurement routes

loaded in Microlog should be shown in text boxes,

when communication is OK.

A text should be visible in

Microlog display.

3. Transfer measurement route (Download point setup file) from PC to Microlog memory.

Microlog is equipped with standard measurement route (point setup) by SKF. The route file can be found in the attached support CD. Updated route files will be sent via e-mail. The route file (setup file) has an extension .dskf.

1.Run SKF Machine eRoute software. (Execute file

MARemote.exe)

2.Power up Microlog

3.Connect RS 232 cable between Microlog and PC’s

Com1 Port.

4. In SKF Machine Remote Route software go to

and then . (Alternatively in SKF Machine

eRoute you may go to and then

.)

?Browse and Select the route file “Remote Route

Download File SOA II 2009.dskf” and press Open.

?Go to and then .

If communication is OK, Remote Route software

displays text “Microlog ready” on bar on top of

the transfer window. If not check communication

parameters and cable connection.

?Check that the route name “SOA II” is shown in

File Contents text box.

?Select Tab :

1) Check that DAD system units is Metric

2) Press Clear and confirm it. (Clears previous

measurement data from Microlog.)

3) Press Config and confirm it. (Synchronizes

Microlog’s clock with PC’s one.)

?Select Tab .

?Press “Download” button. Route file (point setup)

will be downloaded to Microlog memory. Status

bar will roll over the point id data.

? A message: “Routes downloaded successfully.”

will be displayed, when download is ready.” Press

“OK”.

5.Note: Disconnect RS 232 cable from Microlog only

after a text has appeared on

Microlog display. After disconnecting RS 232 cable

Microlog processes the route for few seconds and the

main menu screen appears on display. Now Microlog

is ready for measurements.

6.Close Transfer window in PC.

4. Microlog GX Data Collector Configuration

Check always before starting measurements.

Operating Microlog on Main Menu, select Setup icon and press Enter. Setup should look like in the top figures below. Change Setup, if necessary.

Press Apply to confirm settings and return to main screen.

Select Route icon on Main Menu and press Enter. In Route view, select Config. Instrument Configuration should look like in the bottom figures below. Change Configuration, if necessary.

Press Apply to confirm settings and return to route view.

5. Make vibration measurements (Propeller speed, Vibration readings and Bias voltage).

a.Propeller speed:

Go to measurement route in Microlog and select the RPM point (Left

figure below). Start measurement by pressing either yellow “Enter”

button beside the display. Select “Manual” from the function keys.

Input manually the actual propeller speed in RPM (right figure

below). Accept your input by pressing “Enter”.

b.Vibration:

Connect coiled measurement cable to

Microlog’s connector CH1 (figures

below) and to appropriate BNC

connector in Azipod’s connector box.

Use the black MIL/BNC connector

adapter (and supplied extension BNC

cables if necessary). Using yellow

Up/Down and Left/Right arrows go to

the measurement point to be measured.

In route view the measured parameters and points are marked by a check in circle on the left of the line.

Select the first measurement parameter (usually gE2, left figure below) from the list and press “Enter”.

Be careful to select the correct machine (SB or

PS Azipod) and measurement point (Thrust or

Propeller bearing).

It takes few seconds (due to autoranging and signal

stabilising), before Microlog starts taking

measurements. Note, that there are several

parameters in the same measurement point (gE2,

gE3, gE4, Vel Hi, Vel Lo, Acc F and Acc T), which

Microlog takes successively. This takes few minutes

altogether. Wait until Microlog has completed

measurements. Then Microlog prompts for the next

measurement point (Bias V, right figure below).

Stop here! Don’t disconnect measurementr

cable. Read instructions on the next page before continuing.

c.Sensor Bias voltage measurement:

Sensor Bias voltage reading is an indication of condition of accelerometer and signal cabling. Bias voltage should be between 8 … 16 VDC.

To measure Bias voltage move selection to a vibration measurement point (for instance on “Acc T”, left figure below). Don’t push “Enter”!

Instead, press “0” (shift) button, hold it down, push button “2” and then release both buttons (figure on page 7). Now the Bias voltage reading should appear in display (right figure below). Write the reading down on paper and press “OK”.

Move selection to the line “Bias V” (left figure below) and push “Enter”. In the next display select “Manual” and input manually the Bias voltage

reading (right figure below). Press “Enter”.

d.Disconnect the measurement cable and connect it to the next

measurement point connector. Take vibration readings according to

measurement route and repeat sections from a or b to c as appropriate.

6. Transfer measurement data from Microlog to PC (Upload)

After the measurements have been performed the data must be transferred from

Microlog to PC (Upload). The measurement data will be stored in the upload file having extension .uskf. The data file will then be sent ashore for analysis via e-

mail.

1.Run SKF Machine eRoute software. (Execute file MARemote.exe)

2.Power up Microlog

3.Connect RS 232 cable between Microlog and PC’s Com1 port.

4.In SKF Machine eRoute software Go to and then

5.Check that communication between

Microlog and SKF Machine eRoute

software is working. When

communication is OK, SKF eRoute

software displays text “Microlog

ready” on bar on top of the transfer

Window. If not check communication

parameters and cable connection (see

Page 2).

6.In SKF Machine eRoute software

Select Tab . Select item to

upload -> highlight “SOA II”.

7.Enter name and location of the upload

file. (Or use Browse.)

Please name the file as follows: Ship

name and measurement date in

format ddmmyyyy, for example

C:\…\ SOA II https://www.360docs.net/doc/da15822064.html,kf

8.Press “Upload” button. Status bar will

show progress of upload. A text “1

Routes uploaded successfully”

appears, when the upload has been

completed. Press OK.

9.Measurement data file “SOA II

https://www.360docs.net/doc/da15822064.html,kf” is ready to be sent to ABB for analysis.

10.Disconnect RS 232 cable from Microlog.