VAF instruments T-SENSE User manual

Technical Manual
Instructions for installation,
operation and maintenance
669
T-SENSE®
Optical Torque Measuring systems
and PEM4 stand alone
Publication nr
TIB-669-GB-1117
Supersedes
-

TABLE OF CONTENTS
1.PREFACE.................................................................................................................... 3
1.1General................................................................................................................... 3
1.2Symbols.................................................................................................................. 3
1.3Copyright................................................................................................................. 3
2.SYSTEM DESCRIPTION............................................................................................. 4
2.1PEM4 TOUCH SCREEN ........................................................................................ 4
2.2System security....................................................................................................... 4
3.TECHNICAL SPECIFICATIONS.................................................................................. 5
3.1PEM4 TOUCH SCREEN ........................................................................................ 5
4.SAFETY INSTRUCTIONS........................................................................................... 5
5.UNPACKING................................................................................................................ 5
6.INSTALLATION AND FIRST USE............................................................................... 5
6.1To record nameplate data....................................................................................... 7
6.2Installation diagram................................................................................................. 8
6.3Installation of the PEM4 touch screen .................................................................... 9
6.4Cable specifications.............................................................................................. 13
7.OPERATING PRINCIPLES........................................................................................ 14
7.1General................................................................................................................. 14
7.2Displayed parameter and engineering units ......................................................... 14
7.3Explanation of the parameters.............................................................................. 14
7.3.1Torque......................................................................................................... 14
7.3.2Shaft speed................................................................................................. 14
7.3.3Power.......................................................................................................... 14
7.3.4Thrust (option)............................................................................................. 14
7.4Operating instructions PEM4 touchscreen
............................................................ 15
7.4.1Operating menus......................................................................................... 15
7.5How to operate the touch screen.......................................................................... 15
7.5.1Home menu................................................................................................. 15
7.5.2Propulsion menu......................................................................................... 16
7.5.3Settings menu............................................................................................. 16
7.5.4Alarm screen............................................................................................... 18
7.6Method of calculations.......................................................................................... 19
8.MAINTENANCE......................................................................................................... 20
9.REPAIR...................................................................................................................... 20
10.TAKE OUT OF SERVICE..................................................................................... 20
11.REMOVAL AND STORAGE OF EQUIPMENT..................................................... 20
12.MALFUNCTION AND SEND FOR REPAIR ......................................................... 20
13.ENVIRONMENT ................................................................................................... 20
14.DISPOSAL............................................................................................................ 20
15.TROUBLE SHOOTING......................................................................................... 21
15.1PEM4 malfunction ............................................................................................. 21
15.2No torque signal ................................................................................................ 21
16.CERTIFICATES.................................................................................................... 21
16.1EMC classifications of the PEM4....................................................................... 21
17.DRAWINGS.......................................................................................................... 22
18.ABBREVIATIONS................................................................................................. 25

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19.SPARE PARTS..................................................................................................... 25
20.WARRANTY CONDITIONS.................................................................................. 26

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1. PREFACE
1.1 GENERAL
The PEM4 touch screen is a microprocessor based instrument, which is able to fulfil standard torque,
shaft speed and power calculations within narrow limits. Thrust and thrust/power calculations can be
performed when thrust measurements are available.
The T-Sense®torque sensor is the measuring instrument providing torque, speed and power as input
for the PEM4 touch screen. The TT-Sense®additionally provides thrust measurements as input. This
completely unique and compact total solution can be used for simple to complicated configurations.
Never use the equipment outside its specifications or beyond common engineering
practice nor use the equipment for other applications or make connections to other
equipment than explicitly described in the order acknowledgement and/or technical
manuals of VAF Instruments.
To ensure safe and correct installation and operation, read this manual completely before
installing the equipment and starting operations.
For any additional information contact:
VAF Instruments B.V. Tel. [phone]
Vierlinghstraat 24, 3316 EL Dordrecht Fax [phone]
P.O. Box 40, NL-3300 AA Dordrecht E-mail: [email protected]
The Netherlands Internet: www.vaf.nl
Or your local authorized VAF dealer.
Their addresses can be found on www.vaf.nl
1.2 SYMBOLS
The following symbols are used to call attention to specific types of information.
A warning to use caution! In some instances, personal injury or damage to the torque
sensor or control system may result if these instructions are not followed properly.
An explanation or information of interest.
1.3 COPYRIGHT
This Technical Manual is copyrighted with all rights reserved.
While every precaution has been taken in the preparation of this manual, no responsibility for errors or
omissions is assumed. Neither is any liability assumed for damages resulting from the use of the
information contained herein. Specifications can be changed without notice.

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2. SYSTEM DESCRIPTION
2.1 PEM4 TOUCH SCREEN
The PEM4 touch screen is able to calculate several output data.
Functions, which can be performed with this PEM4 touch screen are:
Measurement and display of torque, shaft speed, power and thrust (optional).
Calculation of average shaft power, shaft speed and torque during the last 1, 4 and 24 hours.
Calculation of total energy and total revolutions including reset.
Calculation of average thrust/quotient when thrust measurement (optional) is provided.
Displaying of parameters.
The PEM4 touch screen can be installed in a control cabinet or control panel.
Remark:
Optional 4-20 mA analogue output can be integrated in the stator control box near the T-
Sense®torque sensor. Please read section 6.5 in TIB-661 for detailed information or read
TIB-664 section 6.5 in case of TT-Sense®torque/thrust sensor.
2.2 SYSTEM SECURITY
Besides checking the status of the torque measurement system the PEM4 system also checks itself
continuously for program and configuration data integrity, normal program flow and power supply
conditions. Alarm messages will be logged in a dedicated alarm screen.

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3. TECHNICAL SPECIFICATIONS
3.1 PEM4 TOUCH SCREEN
Supply voltage 115-230 VAC to power supply unit
Dimensions 235 x 150 x 44 (w x h x d)
Cut out 217,6 x 128,6 mm (w x h)
Cut out depth 38 mm
Front panel thickness 7 mm
Connections RJ45 Ethernet connection on the back-bottom side of the panel
Temperature range -20ºC – 60ºC
Display Color TFT LCD, PCAPTouch screen 7,0” (1024 x 600 dots) with
adjustable LED backlight
Power consumption 8 W
Processor (CPU) i.MX 6 DualLite at 1 GHz, 2 GB DDR3 on board memory
Net weight 1,3 kg
Figure 1 – PEM4 touch screen
4. SAFETY INSTRUCTIONS
There are no special safety instructions for the equipment.
5. UNPACKING
Let the equipment acclimatize inside the closed box for at least one hour at the location where the
system will be installed.
When the equipment is taken out of the box, please leave the special protection supplied with the
equipment as long as possible in place to avoid any damage.
The special protection should be stored for the unlikely event the equipment has to be sent for repair.
Dispose of the packing material should be done according to the laws of the country where the
equipment is installed, or according to the rules that are applicable on the vessel.
Be careful when unpacking the electronic equipment. The content is fragile.
Do not press on the PEM2 touch screen.
6. INSTALLATION AND FIRST USE
The PEM4 touch screen will be delivered with the software and correct data settings installed. First
connect the Ethernet cables to the control box and the touch screen.
The wires for power supply should be connected at last.

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Check if the inputs show any errors. If that is the case the connection(s) or connected equipment
should be checked and corrected.
6.1 TO RECORD NAMEPLATE DATA
This information is required when contacting the supplier for any reason.
Date of delivery: xx xx xxxx
Serial number: xxxx
Stator version: xxxx
Interface version: xxxx
Hull number: xxxx
Type: PEM4 touch screen
Above information can be found at the PEM4 info screen.

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6.2 INSTALLATION DIAGRAM
The PEM4 touch screen can be connected to the stator control box as shown in Figure 2 and Figure 3.
The maximum number of touch screens, which can be connected by Ethernet connection is two.
Figure 2 – T-Sense®torque sensor connected to one PEM4 touch screen
Figure 3 – Example of T-Sense®torque sensor connected to two PEM4 touch screens
Remark:
When a TT-Sense®Thrust & Torque sensor is installed it can be connected in the same
way as above mentioned T-Sense®equipment.

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6.3 INSTALLATION OF THE PEM4 TOUCH SCREEN
1. Install the PEM4 touch screen in a control cabinet or control panel in the ECR or on the bridge,
where it will be free as possible from moisture, large fluctuations of temperature and particularly of
vibration shock. Also influences such as large magnetic fields caused by transformers, relays or
electromagnets must be avoided.
2. All cable connections should be made using cables as specified in section 6.4.
3. Connect the RJ45 Ethernet from the stator control box and power supply to the backside bottom of
the PEM4 touch screen in accordance with Figure 4.
Figure 4 – ON/OFF switch and communication ports at backside bottom of PEM4 touch screen
4. Check for correct power supply and integrity of external wiring connections. Turn on power and
observe several readings, like torque, shaft speed, power etc.
Important notes
Never connect cable shields at both ends to ground, but at one end only, to avoid
earth loops.
To avoid interference on the signal cables, such cables must be installed as far as
possible from electric power cables used for power supply and stator.
Ensure that the ambient temperature at the PEM4 never exceeds 55°C.

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5. Only applicable if an additional (second) touch screen is connected to the T-Sense®system.
Additional touch screens are connected to the system as described in Figure 5.
For the use of two PEM4 screens a Ethernet switch is necessary.
Check for correct power supply and integrity of external wiring connections. Turn on power and
observe several readings, like torque, shaft speed, power etc.
Figure 5 – Example of T-Sense®torque sensor connected to two PEM4 touch screens

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6. IP settings of the PEM4 display
In order to have no malfunction of the system the IP settings of the PEM4 display have to be set up
correctly. The next steps will explain how to adjust the IP settings of the system.
Switch off the power supply of the PEM4 display. Wait for 1 minute and then repower the PEM4.
Enter password “5678” end press login. The screen below will appear.
Change the Address to http://168.0.0.120 (this is the default IP address of the stator control box)
and press “Save setting”. Then Press “Ethernet settings”. The screen below will appear.
Press “Ethernet settings”. The next screen will appear.

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Ensure the IP address is 168.0.0.110 for the first PEM4 display. In case a second PEM4 display is
installed the second screen should have IP address 168.0.0.111. If this is correct press “Next”. Set
the DNS address to 255.255.255.0 and press “Done”. The screen below will appear.
Press “Confirm” to save settings. Next, switch of the power supply of the PEM4, wait for 1 minute
and repower the PEM4 display. The screen below will appear.
Press “Start Application” or wait until the timer has gone to zero, the application will start at the
home screen, see screen below.

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6.4 CABLE SPECIFICATIONS
Specification for the input, output and power supply cables connected to the PEM4 touch screen.
Figure 6 – Specification of input and output cables at the stator control box and PEM4 touch screens
Cable specification:
IC-01 Integrated antenna cable 5m, VAF supply
IC-02 Integrated stator cable 5m, VAF supply
IC-04 Power supply (115 / 230 VAC) cable, 3 x 1,5 mm2, flex strands
IC-05 Power supply (24 VDC) cable, 1x2x0,5 mm2, flex strands
IC-11 Connection cable Ethernet, CAT5e, Braid Shielded, RJ45
Remark:
When a TT-Sense®Thrust & Torque sensor is installed it can be connected in the same
way as above mentioned T-Sense®equipment.

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7. OPERATING PRINCIPLES
7.1 GENERAL
A zero setting procedure is always necessary in order to obtain a correct measurement and reading.
For more detailed information see paragraph 6.4 in TIB 661 of the T-Sense®torque sensor.
The PEM4 touch screen is easy to operate and provides the operator with a standard selection of
torque, shaft speed and power data.
A number of conditional messages will inform you about error/fault conditions if applicable.
Setups determining functionality are only possible via the access code 1234.
All setups and computations are stored in a battery backup RAM. The PEM4 system is self-checking as
for correct functioning of its memories, program run and existence of supply voltage.
7.2 DISPLAYED PARAMETER AND ENGINEERING UNITS
The following parameters are available at the PEM4 touch screen:
Torque (kNm)
Shaft speed (rpm)
Shaft power (kW)
Total energy (kWh, MWh, GWh)
Time-base (hours, minutes, seconds)
When a TT-Sense®Thrust & Torque measurement system is applied the PEM4 touch screen will
display below parameters in addition:
Propeller thrust (kN)
Thrust power quotient (kN/MW)
7.3 EXPLANATION OF THE PARAMETERS
7.3.1 Torque
The torque signal, measured in the rotor part, is sent wireless via the stator antenna to the electronics
in the control box. In this control box the signal is converted to a Ethernet, which signal is connected to
the PEM4 touch screen. Zero torque adjustment will be done during commissioning of the T-Sense®
rotor and control box.
7.3.2 Shaft speed
The shaft speed is measured via a gravity sensor in the T-Sense®rotor part. This rotor part is
connected wireless to the stator electronics in the control box. The stator electronics are connected to
the PEM4 touch screen via Ethernet.
7.3.3 Power
The power is calculated by multiplying the above measured shaft speed and torque. The output values
are submitted to the PEM4 touch screen via the same Ethernet connection.
7.3.4 Thrust (option)
In case a TT-Sense®is installed, which additionally measures the axial displacement due to propeller
thrust, the thrust values are converted to an Ethernet signal in the same way as the torque and shaft
speed outputs.

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7.4 OPERATING INSTRUCTIONS PEM4 TOUCHSCREEN
7.4.1 Operating menus
The PEM4 touch screen includes with the following operating menus:
7.4.1.1 The user mode
For daily use: In this mode all relevant system menus are displayed. Different pages could be selected
by tapping the page at the top of the screen.
7.4.1.2 The settings mode (settings menu) for users
Only displayed after choosing the “Settings Menu” page and entering your password (1234).
7.5 HOW TO OPERATE THE TOUCH SCREEN
The PEM4 touch screen screens are designed in such a way that they are easy to operate and self
explaining. By pressing at the touch screen buttons/text fields/characters/pages are selected.
Browsing through the menus by tapping on the different pages at the top of the touch screen will help
you to find the information you are looking for.
In the “Settings Menu” you will be able to change specific values via a numeric keypad. This keypad
will be displayed after pressing the values in the grey sections at the touch screen.
In the following sections several examples of PEM4 screens are shown and a description of the main
PEM4 functions is added.
7.5.1 Home screen
Figure 7 – Home screen
This is the “Home” submitting information about the actual torque, propeller speed and power at the
propeller. Note that thrust and thrust power quotient (propeller) are only visible if a TT-Sense®is
installed.

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7.5.2 Propulsion screen
Figure 8 – Propulsion screen
This page is showing the average propulsion data over the last 1, 4 and 24 hours. When the propeller
shaft is rotating the PEM4 is continuously recalculating these average values. In case the propeller
shaft is not rotating the average values stay as they are.
“Total Energy” consumed by the propeller and the “Total Revolutions” made by the shaft are available
at the lower part of the screen.
The “Total Energy” value jumps from kW to MW to GW (min. 0,000 kW and max. 9999 GW).
The “Total Revolutions” value jumps from E3 to E6 to E9 (respectively 1000, 1x106and 1x109
revolutions).
These total values can be set to zero anytime by pushing the “Reset” buttons.
After resetting “Total Energy” and “Total Revolutions” the previous displayed values are
lost.
7.5.3 Settings menu
Figure 9 – Settings menu
This “Settings Menu” is accessible by entering the 4-digit password 1234 in the login screen. This
screen is your entrance to adjustment of settings.

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7.5.3.1 Settings menu, torque inversion
Figure 10 – Settings menu, torque inversion
When the touch screen is showing a negative torque value, when sailing ahead, you are able to
convert this negative value to positive by pushing the “Standard” button once. “Standard” will now
change to “Inverse”. Pushing “Inverse” will change the button back to “standard” again.
7.5.3.2 Settings menu, clock
Figure 11 – Settings menu, clock
7.5.3.3 Settings menu, Ethernet settings
Figure 12 – Settings menu, Ethernet settings
In this menu it is possible to change the Ethernet settings of the stator control box. Via “Get settings”
the current settings are shown.
Remark:
Please double check changes before pressing changing settings. Incorrect settings might
cause malfunctioning of the complete system.

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7.5.3.4 Settings menu, info
Figure 13 – Settings menu, info
This screen is displaying all essential data in case you to have to contact VAF Instruments regarding
your T-Sense®torque measuring system.
7.5.4 Alarm screen
Figure 14 – Alarm Screen
In case the PEM4 touch screen detects that output data is missing the system will showing the alarm
message “Communication Fail”.

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7.6 METHOD OF CALCULATIONS
Shaft power is calculated from the measured torque and the revolutions of the shaft.
Shaft power
∙
9.945
P = Shaft power [kW]
M = Torque [kNm]
n = rotations per minute [rpm]
Total energy is calculated from the integrating shaft power over time
Total energy
∆∙∆
E = Total energy [kWh]
The thrust quotient indicates the amount of thrust generated per MW propulsion power. The thrust
quotient is an indicator of propeller efficiency. Be aware that propeller thrust and ship speed influence
each other.
Thrust quotient
   
1000

T = Thrust [kN]
P = Shaft power [kW]
∙

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8. MAINTENANCE
No special maintenance is needed for the PEM4 touch screen.
The touch screen can be cleaned with a dry and clean cloth.
Do not use any cleaning product or chemical on the screen.
9. REPAIR
Nothing on the PEM4 touch screen can be repaired on site.
10. TAKE OUT OF SERVICE
Switch off the power supply.
11. REMOVALAND STORAGE OF EQUIPMENT
Switch off the power supply.
Make sure that all wires that are connected to the PEM4 are labelled correctly so that re-installation of
the PEM4 can be done without any errors. Disconnect all the input and output wires.
Store the PEM4 in a box in a cool and dry place, so that the PEM4 cannot be damaged.
12. MALFUNCTION AND SEND FOR REPAIR
If the PEM4 stops working completely contact VAF Instruments for instructions.
VAF Instruments is working with a RMA (return material authorisation), in the event the PEM4 has to be
sent back for repair, you can contact VAF Instruments, by email: [email protected] for further instructions.
13. ENVIRONMENT
The PEM4 touch screen has no negative influence on the environment during normal operation.
14. DISPOSAL
The PEM4 touch screen is made out of metal and electronics. It should be disposed according to local
laws of the country.