C102962 A SERVICE TRANSMITTER UNIT

C102962-A Page 1 of 9

13.08.2008

DOC-1017-1

Transmitter Unit

Service Manual

Revision history:

REV. DATE MODIFIER DESCRIPTION

0 2.4.2008

AaNi Created

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DOC-1017-1

PROPULSOR TRANSMITTER UNIT (STU) ..................................................................................... 3

THE LUBRICATION AND CORROSION PROTECTION OF THE TRANSMITTER UNIT .... 3

HOW TO FIND Z-POSITION (CALIBRATION POSITION) AT PROPULSOR? ....................... 3

HOW TO DEFINE PROPULSOR 0-POSITION ................................................................................ 4

STEERING ANGLE CALIBRATION ................................................................................................. 4

FEEDBACK ENCODERS RG10, RG11 .............................................................................................. 5

6.1

ROCEDURE WITH OLDER SOFTWARE

EMPORARY

IRE

) ............................................................. 6

6.2

ROCEDURE WITH NEW SOFTWARE

(SED

SETTING

) ........................................................................ 7

TRANSMITTER REPLACEMENT ..................................................................................................... 8

7.1

EEDBACK TRANSMITTER

RG10

RG11

ASSEMBLY

....................................................................... 8

7.2

RANSMITTER SUPPORT PLATE INSTALLATION

................................................................................ 9

7.3

TEERING FEEDBACK TRANSMITTER

RG10

RG11

FAILURE

....................................................... 9

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DOC-1017-1

1 P

ROPULSOR TRANSMITTER UNIT

(STU)

The propulsor is equipped with two separate and different type of feedback transmitters
for control system. The control system can also operate with the analog transmitter.

◊ FEEDBACK SYSTEM

Components and locations:
1 Input shaft

2 Propeller shaft

3 Transmitter unit STU

4 Sight glass for calibration

5 Mechanical angle indicator

6 Angle feedback transmitter

RG11

7 Speed feedback and monitoring

transmitter BR01

8 Angle feedback transmitter

RG10

9 STU connector XP01

10 STU connector XP05

11 Scale zero

12 Dial zero

13 Scale

14 Dial screw

15 Dial

2 T

HE LUBRICATION AND CORROSION PROTECTION OF THE

RANSMITTER UNIT

The transmitter unit has gear transmission, which should be protected against
corrosion caused by condensation with non-condensing grease or equal.

The lower part of the unit is ventilated.

3 HOW

FIND

Z-POSITION

(CALIBRATION

POSITION)

PROPULSOR?

Near of the Transmitter Unit (STU) (left from motor 4) is a 3/4"plug. When you open the
plug, you can see a sight glass. Through the sight glass (called "Indication point at
slewing ring") you can see slewing ring screws. The screws are hexagon head screws
except one, which is hex socket screw and painted red. This one is indicating the Z-
position. There is also a red arrow marking inside of the propulsor.

Z-

POSITION

Propeller shaft line (2) and input shaft line (1) are along the same line

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DOC-1017-1

Through the sight glass of the “Indication point at slewing ring” (open the
3/4” plug) you can see a hexagonal screw (other screws have hexagonal
heads).

4 HOW

DEFINE

PROPULSOR

0-POSITION

The propulsor 0-position means the position, where the propeller shaft is along the CL-
line of the vessel. The angle between CL and input shaft line is shown General
Arrangement drawing. In the most of cases the input shaft is with the CL parallel.

0-POSITION

SETTING

Turn the propulsor first to the Z-position

Check, that the indicator dial is pointing to the scale 0.

Open three screws at scale ring

Turn the scale zero (0) according CL line (The angle between CL and input
shaft line is shown General Arrangement drawing.) *See note

Fasten the screws and lock them Loctite 542 (you can use also a tiny dip
for locking the scale).

Turn the Steerprop propulsor with local control or manually so that the
indicator dial pointer is pointing zero (0)

Tighten and lock the dial fastening screw lock it Loctite 542

The dial is normally set at factory to the right position (according propeller
shaft).

the

Z-position

deviates

from

line,

the

accurate

correction

angle

set

through

setting

software.

5 S

TEERING ANGLE CALIBRATION

Use this procedure, when the system is already commissioned and you need only to
set the control system and indicators back to the original zero. At least in following
cases you should make this new adjustment

You replace transmitters

You repair STU mechanics

The transmitter position are deviating from original zero (CL direction)

The transmitter setting procedure is carried out at control unit SCU. There is not need
to adjust the transmitter mechanically. The checking of the CL-line should be carried
out using Transmitter Unit mechanical indicator. The remote indicators will be adjusted
independently. Make sure, that the mechanical indicator is adjusted according the
vessel CL-line The vessel CL-line is not always the same as the propulsor Z-direction.

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DOC-1017-1

EEDBACK ENCODERS

RG10,

RG11

THIS PROCEDURE SETS ALSO CONTROL LEVER ZERO ANGLE. BEFORE STARTING

THIS PROCEDURE, SET THE CONTROL LEVERS TO ZERO STEERING ANGLE

THE REMOTE INDICATORS WILL BE ADJUSTED INDEPENDENTLY. THERE IS
SEPARATE TRANSMITTER FOR WHEELHOUSE REMOTE INDICATORS.

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DOC-1017-1

6.1 P

ROCEDURE WITH OLDER SOFTWARE

EMPORARY

IRE

)

This procedure will set feedback transmitter RG10 and
indication transmitter RG11 zero positions to correspond the

signal current 12 mA. At the same time will the control unit
(SCU) zero position be set.

ROCEDURE STARTING

1. Ser control levers at 0 at remote control positions
2. Select local control (at SCU unit) with switch SC01
3. Connect the supply voltage (at SCU unit) with switch SS01
4. Turn the propulsor according to the propulsor Z-position. This position you

can see from the indication point at slewing ring through the sight glass.

5. Check, that the angle at mechanical indicator (STU) is same as the angle

between the propulsor Z-position as vessel CL-line shown in the assembly
drawings

6. Turn the propulsor to the CL-direction (the mechanical indicator at

transmitter unit STU is at zero position).

ECHANICAL

DJUSTING

7. If needed, make first the mechanical adjustment.

ONTROL SYSTEM ADJUSTMENT AND

RG10

AND

RG11

ADJUSTMENT

8. Disconnect the supply voltage with switch SS01
9. Check, that remote control does not have active control
10. Select "Local" with switch SCU1
11. Connect the terminal 299 (set) to 222 (24 VDC) control voltage supply with

temporary wire

12. Connect the supply voltage (at SCU unit) with switch SS01
13. Rotate the propulsor 3 times to calibrate the feedback signal at very low

speed (max 90 s / turn)

14. Turn the propulsor according the vessel the 0-position
15. Check, that the propulsor is according the 0-position

NDING THE PROCEDURE

16. Check, that the propulsor is according CL line
17. Deselect - select local to deselect setting mode
18. Disconnect the terminal 299 from 222 (24 VDC) supply (remove the

temporary wire).

19. Connect the terminal 299 from 222 (24 VDC) supply (the temporary wire).
20. Disconnect the terminal 299 from 222 (24 VDC) supply (the temporary

wire).

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DOC-1017-1

6.2 P

ROCEDURE WITH NEW SOFTWARE

(SED

SETTING

)

This procedure will set feedback transmitter RG10 and

indication transmitter RG11 zero positions to correspond the
signal current 12 mA. At the same time will the control unit

(SCU) zero position be set.

ROCEDURE STARTING

1. Set control levers at 0 at remote control positions
2. Select local control (at SCU unit) with switch SC01
3. Connect the supply voltage (at SCU unit) with switch SS01
4. Turn the propulsor according to the propulsor Z-position. This position you

can see from the indication point at slewing ring through the sight glass.

5. Check, that the angle at mechanical indicator (STU) is same as the angle

between the propulsor Z-position as vessel CL-line shown in the assembly
drawings

6. Turn the propulsor to the CL-direction (the mechanical indicator at

transmitter unit STU is at zero position).

ECHANICAL

DJUSTING

7. If needed, make first the mechanical adjustment.

ONTROL SYSTEM ADJUSTMENT AND

RG10

AND

RG11

ADJUSTMENT

Select the “Service” from SED display.

Then comes display, where is two push buttons.
Push button “Reset zero set”.

After you have pushed it, SED ask confirmation.
Answer yes, if you are sure.

NDING THE PROCEDURE

8. Check, that the propulsor is according CL line

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DOC-1017-1

7 T

RANSMITTER REPLACEMENT

TRANSMITTER UNIT
COMPONENTS

1 Transmitter assembly

2 Gear from steering gear

3 Incremental encoder

BR01

4 Lid on the incremental

encoder

5 114 teeth gear

6 Gear to steering gear

output

7 Inremental encoder BR01

fastening screw

8 114 teeth gear

9 Feedback encoder RG10

10 Feedback encoder RG11

11 Feedback encoder RG12

Use this procedure, when you replace transmitters at Steerprop Transmitter Unit
(STU).

At each transmitter setting instruction is shown its assembly to the gear. You should be
careful, that all transmitter gears have right teeth number. The number of teeth is
shown at each transmitter instruction. Normally is impossible to make wrong assembly
of gears, because they only fit in right position. The tooth clearance is automatically
right.

If the gear seems to run badly or it doesn’t fit at all, take contact to Steerprop service.

7.1 F

EEDBACK TRANSMITTER

RG10

RG11

ASSEMBLY

The transmitter is assembled in the Transmitter Unit. The 114 teeth gear is fastened
with locking screw onto transmitter shaft through a short sleeve. The transmitter is
fastened on the assembly plate with three claws. Check, that all screws are tight and
locked after setting to be sure that the feedback signal position does not change. The
electrical connection is shown at circuit diagram.

ROCEDURE STARTING

Select local control with selection switch SC01

Turn the propulsor to CL-position using local control or manual turning

Disconnect the supply voltage (at SCU unit) with switch SS01

Check, that steering gear brakes are keeping the propulsor in this position

Open the electric connector from STU unit

Open the cover of the STU unit

Take the whole sensor assembly out

Replace the needed transmitter

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DOC-1017-1

7.2 T

RANSMITTER SUPPORT PLATE INSTALLATION

The transmitters are fastened on the assembly plate with special sleeve or claws.
During installation it is convenient to remove the assembly plate from the Transmitter
Unit. For the transmitter is at assembly plate opening and guidance and the guidance
can be tight. The assembly should be carried out very carefully, accurate and steady.
The transmitter is measuring instrument designed for harsh environment, which can
damage due incautious assembly.

The transmitter is assembled in the Transmitter Unit. The 114 teeth gear is fastened
with locking screw onto potentiometer shaft through a short sleeve and below it is
another gear, which number of teeth is depending of the slewing ring of the propulsor.
Check, that the gear is running freely and does not bend the shaft. Secure the locking
and fastening with Loctite 542.

Install the assembly plate back to Transmitter Unit. Check that the lower gear at BR01
shaft is freely and accurate driven by 11 teeth gear locating at the bottom of the
Transmitter Unit. Normally is impossible to make wrong assembly of gears, because
they only fit in right position. The tooth clearance is automatically right. If the gear
seems to run badly or it doesn't fit at all, take contact to Steerprop service.

Check, that all screws are tight and locked after setting to be sure that the feedback
signal position does not change. Secure the locking and fastening with Loctite 542.

The electrical connection is shown at circuit diagram in the documentation. Protect and
fasten the connection wires so, that they can't drop to gears.

7.3 S

TEERING FEEDBACK TRANSMITTER

RG10

RG11

FAILURE

If the zero positions of RG11 and RG10 are not same, the control system will give
control system alarm.

FAULT EFFECT

CAUSE

REMEDY

The internal

failure indication
of the transmitter

has founded
failure, signal is 2

Steering stops.

Transfer the propulsor
to back-up control.

Transmitter does not work.

Replace transmitter

Transmitter does

not work

Steering stops.

Transfer the propulsor
to back-up control.

Transmitter wiring

Propulsor is

making steering
without command

Transmitter temperature is too

high

Lower transmitter temperature

adding cooling

The transmitter is loose and

turns by itself

Tighten the fastening

And make new setting.

Signal is 0 mA

Steering stops.
Transfer the propulsor

to back-up control.

Transmitter voltage supply

Repair it

Transmitter wiring.

Repair

Transmitter zero
positions differ

from each other

The transmitter is loose and
the zero position differs

Tighten the fastening
And make new setting.

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