Bài giảng Máy điện hàng hải biên soạn có nội dung trình bày các kiến thức cơ bản về máy đo sâu hàng hải, tốc độ kế, la bàn con quay, máy lái tự động. Tham khảo nội dung bài giảng để hiểu rõ hơn về các nội dung trên. Hi vọng tài liệu sẽ cung cấp kiến thức cho các bạn
Trang 13.2.3 Stop (including emergency stop)
(1) Turn the steering wheel to set the pointer of the rudder angle indicator at the center (2) Turn the mode selection switch I MODE I to I HAND I
(3) Turn the system selection switch I SYSTEM I to I OFF I and turn OFF the power
(4) Make sure that various illuminations and displays go off
(5) Then, perform operation for ending at the steering gear side and operation for confirming ending, as necessary
(6) Perform (1) - (3) in the same way for emergency stop
3.2.4 Emergency steering method
If a trouble or failure occurs during steering, perform the following emergency steering
(1) I Emergency steering I I [wheel house]
a ~'hen a trouble or failure occurs during the AUTO steering (gyro-compass or magnetic compass
is being used), the JLWD steering, remote auto steering or remote hand steering modes, take navigational safety means first such as reducing the ship's speed
b Tum the mode selection switch I MODE I to I NFU I (non-follow up steering) and steer with the non-follow up steering lever
(2) I Emergency steering 2 I [wheel house]
If the non·follow up steering cannot be regained, turn the system selection switch I SYSTEM:
to another system (from 'No.1' position to 'No.2' position or vice versa) Then, steer with the non·follow up steering lever
(3) ! Emergency steering 3 I [ wheel house]
If the steering control still cannot be regained, stop the abnormal steering gear and steer
with the another steering gear
(4) I Emergency steering 4 i [wheel house I steering gear room]
a When the steering control cannot be regained by the above metho s, take a means such
as ordering astern of the engine, etc., to stop the ship safety
b Make the emergency steering according to the emergency steering procedure for the steering gear
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Trang 33.2.6 Auto steering method
Refer to 3.2.11 for adjustment of auto steering control knobs, etc., used for auto steering
&WARNING
.Do not use the auto steering in confined sea areas or narrow channels In ~ddition, do not switch to the auto steering too
Prompt avoidance is no in time and may cause collision or stranding
• When the rudder angle selection switch is installed select the maximum rudder angle
of 50' during auto steering
If the maximum rudder of 70' is set and used as is own ship may overturn with a rudder
of 70' caused by malfunction of auto course changing
• When the PID control mode is used, the auto steering adjusting kn o bs [RUDDER
(ratio) RA TE WEATHER] should surely be readjusted if the load condition and the ship's speed are changed or weather and sea state vary
The set course cannot be maintained when these knobs are set improperly or not being readjusted and may cause collision of the ship or stranding
• Keep a strict "look out" (watch), in particular during auto steering Careless "look out" (watch) may cause collision or stranding
• When trouble happens on the gyro-compass heading monitor (option) or the speed log (option) make sure the repeated condition of the bearing of the gyro-compass and the speed of the speed log (option) (Push the switch I <lSEL Ion the data display number
of times then make sure the bearing and the speed For that method refer to 3.2.12.)
If these data are not correct the auto steering may not operate properly
• When manual ship's speed input is selected and if ship's speed is not set correctly, the autopilot can not operate properly due to yawing etc •
Therefore when manual ship's speed input is selected set the ship's speed referring to
3.2.12 (I)
&WARNING
.While the ship's speed is low when the mode is switched to the auto steering frolllthe other steering modes, the set course may not be able to maintain Steer under monitoring the ship's motion
• Make sure of the safety around own ship before changing the course during auto steering
• Course changing during auto steering can be made to 359' of right or left direction by rotating the course selling knob A large angle course changing however, i s
dangerous and a course changing wit.hin 45' should be made at a time and repeat that,
if necessary to deal with unexpected dangerous situation
When a larger course changing than this is performed by any chance monitor malfunctions and dangerous conditions till completion of the course changing and take a navigational safety means if necessary
ACAUTION
eDuring the auto steering PID control mode is used various knobs in the auto steering adjusting section should be adjusted according to the ship's speed load condition and weather, etc Remaining at the initial settings as they are may cause sailing without optimum conditions
]-9
Trang 5At this time, when the course deviation (CO DEV : COURSE DEVIATION) of
the bar-graph selection indicator of the AUTO unit is lighting the deviation is
shown in (he bar-graph indicator, and the course deviation reduces with the
turning aud goes off when the ship is on the new course
• ROT (rate of turn) L1ncler turning is controlled within the specified turn rate set value
(4) Auto steeling with magnetic compass (When the bearing sensor is J magnetic compass.)
a Confirm the magnetic compass variation
b Turn the ship's heading by hand steering to the desired course
Confirm that the ship sails along the desired course
c Confirm the selling positions of various adjusting controls for auto steering
d Turn the mode selection switch I MODE Ito the I AUTO I position
The ship goes straight along the set course (course keeping)
e Auto course changing
For course changing during auto steering, turn the course setting knob of the AUTO unit to input the desired magnetic course bearing into the SET COURSE display,
and the rudder is automatically taken for the ship to turn, and the ship enters the new
course (when the variation has been corrected at the magnetic compass side, input the tlue heading)
(5) Refer to 3.2 I I for adjusting method of the auto unit adjusting controls for auto
steering
3.2,7 Remote auto steering (NAV) method (ol)lion)
[Remote auto steering (NAV) is equivalenl t o TRACK control steering.]
011 the remote auto steering (NAY) method, two methods are included and AUTO-NA V
which is controlled with selling course or RC·NA Y which is controlled with order rudder angle can be selected
On the AUTO-NA V which is controlled with selling course, the ship's rudder is controlled
with the received data for automatic steering from external navigation equipment automatically
On the RC-NA V which is controlled with order tUdder angle, the ship's rudder is controlled
with the received order rudder angle signal from external navigation equipmellt directly The operation of both method is almost same then operation for AUTO-NAY is explained in this section Also some differed ports of RC-NA V are included
&WARNING
.00 not use the remote auto steering (NA V) in confined sea areas or naJTQw channels as a rule For using it by any chance in such areas, suitable navigational means such as secllling safety around or reducing speed should be taken If not, prompt action cannot be
made, and may cause collision or stranding
• Keep a strict "look out" (watch), in particular, during remote aUla steering Careless
"look out" (watch) may cause collision or stranding
• If an alarm generated in the autopilot or gyro-compass, heading monitor (option),
speed log (option) and tracking navigational equipment side during the remote auto
steering, make sure at once of the content When an abnormality affecting [he steering
is generating, switch at once to one of the other steering modes
Trang 7(6) Note that the setting for RUDDER LIMIT on the AUTO UNIT is not efTective in the course changing during remote auto steering
(7) When communication with the external navigation equipment becomes abnonnal "Communication is invalid" alarm / "Not Ready" alarm tAUTION IRc Ml E09.1 and E09.3/E09.2 and E 09.4} occur TIlen the steering mode indicator [R] blinks I AUTO I is lit Wllen these alarm occur in the course changing(tum modeJ, the ship is automatically changed to the set course(next leg course) as displayed on the SET COURSE display and dIe ship is kept going on the course When these alarm occur in the course keeping[straight leg modeJ the ship is kept going on the set course(the received last normal set course) as displayed on the SET COURSE display
(8) According to the speci.fjcation of the connected navigation equipment and during [AUTO-NAV] the
course keeping mode selection can select only the ADPT control mode (cannot select the PID control mode) on the some systems
3_2.8 Remote hand steering (RC : Remote Control) method (option)
A\WARNING
e Do not use the remote hand steering (RC) in confined sea areas or narrow channels
Prompt avoidance is not in time and may cause collision or stranding
e During the remote hand steering, always confirm the rudder angle and its direction displayed on
the rudder angle receiver (indicator) ff not when failure generates in the remote control steering line discovering dle failure may be delayed to cause collision or stranding
eSet the remote control steering knob at the center before switching to the remote hand steering mode from the odler steering mode r f not, a large rudder may be taken afier switching to cause collision or stranding_
elf an alaml generated in the autopilot or remote control unit side during the remote hand steering, make sure at once of the content When an abnonnality affecting the steering is generatinR, switch at once to the other steering mode
(I) For the specification in which confirmation aclion at the remote hand steering location is not determined
a When the mode selection switch I MODE I is turned to ~ • the mode becomes the RC mode not selected condition (The steering mode indicator ~ blinks The hand steering is possible.)
At this time pressing the 0 switch of the remote selection unit while pressing the steering location switch moves the mode to the remote steering mode and the lamp of the steering location comes on The steering mode indicator [!£J becomes continuous lighting from blinking
b Turn the remote control steering knob to steer
J -IJ
Trang 9(3) For the ~p ecifi c t i o n in which the steering selec,ion switch is in tlie remote hand steering location (the location where the remote control is connected)
a When the steering mode selection switch of the facia panel has been in I RC I , press the steering selection switch in the remote control steering location, and the buzzer sounds and the selection indicator blinks When pressing the steering selecti n switch continuously till the indicator lights, the remote control at that location becomes possible When pressing the steering selection switch at the other locati n
or changing the steering locatioll at the remote control selection lInit of the facia panel or turning the mode selection switch to the other positions than I RC I ' the buzzer sounds again and the selection indicator goes off, and the remote control at that location becomes impossible
b Turn the remote cOlltrol steering knob to steer
3.2,9 Non-follow up steering (NFU) method
(1) Turn the steering mode selection switch to the non-follow up position I NFU I
The steering mode becomes the non-follow up steei'ing and the steering mode
indicator I NFU I lights
(2) Throwing the non-follow up steering lever in one direction moves the rudder in the same direction The rudder is taken during turning the lever, and the rudder stops motion when the lever is returned to the neutral position
(3) To return the rudder to the center, turn the lever in the reverse direction tili the rudder returns to the center while seeing the rudder angle receiver (indicator)
3 - 15
Trang 11And selection of ADPT/PlD is made by selling ADPT course keeping mode I PID
In the PID or ADPT steering mode, these control knobs perfonn adjusllnents (selections)
Table 3-1 Auto steering adjusting control knobs (fullctions) for AUTO modes
Pilot watch (PILOT WATCH)
3 -r 7
Trang 13\Vhen not overshoot of ship's heading and it doesn't enter a set course easily, RATE knob is
lowered by I ~ 2 graduation as shown in the figure below
Fig 3-7a(3) Case of RATE value large (Not overshoot of ship's heading)
b Rudder angle ratio (RUDDER)
The optimum value of rudder ratio changes depending on the ship's speed
Set the RLUDER knob at the optimum position till now (if unknown, set at [4].)
Set the RATE knob at the optimum position
Under such a condition, change the RUDDER by 1-2 graduation under observing the yawing width
in the straight going in about 10 minutes, and set the RUDDER at the position where the yawing
width becomes minimum
<Supplement>
When the setting of the rudder angle ratio is large, ship's heading tends to swing at a short cycle
and to grow gradually the width of swinging Moreover, the amount of steer at course keeping I
course changing grows \Vhen course changing overshoot grows
When the setting of the rudder angle ratio is smail, ship's heading tends to swing at a long cycle compared with a large setting Moreover, the function to settle ship's heading to the influences of
external disturbances such as waves and the winds is degraded though the amount of the steer of course keeping! course changing rudder becomes small
Weather adjustment has automatic weather adjustment(fOPN I CNF(with ADPT controljorfAUTO
(without ADPT control)]) and manual weather adjustment (O~ I 0)
Refer to the clause of the course keeping mode selection for fOPN; I fCNF J (with ADPT control)
The course keeping capability becomes better with [ a smaller value 1 than the optimum value, but the number of rudder takings with a large rudder angle becomes more than necessity
3-19
Trang 15&WARNING
amount of course changing, etc_ In such case, always conflrnl surrounding safety whenever the auto steering is being steered in the auto steering or remote auto steering (AUTO-NAY) because there is possibility that the actual COurse has changed from the expected one In the event of failure
to confirm the surrounding safety, it may cause collision of the ship or stranding
Pressing the AUTO unit 1<1 SEL I switch a number of times lights the data selection indicator
I KO.T I and shows the rate of tum (unit deg/min)
At this time, pressing the DATA I CHANGE I switch located at the lower right shows the turn
DATA I CHANGE I
cannot be changed during automatic course changing and remote auto steering with setting
~'hen this setting is OFF, the ship does not turn at the constant rate of tum The I R.O.T I
display blinks during turning at the specified tum rate order in automatic course changing The tum rate order from external navigation equipment is displayed when auto steering with
However OFf is displayed when no turn rate order type equipment is used
3·21
Trang 17_ - _ - - -
-(2) Rudder Angle Indicator (option)
All data selection indicators and bar graph selection indicator put out the lights when
pressing the I <lSEL I swit.::h numuer of times, and the rudder angle from repeat
back unit is displayed a numerical value and baf graph in the data display and har
graph display ''~ODd'' is displayed in the data display Refer to 2.4 (2) ® a and b
(3) Alarm detail display (ERR display)
The I ERR I of the data selection indicator lights when pressing the I <l SEL
switch number of times, and the alarm detail number is displayed When plural
alarms generate, the other alarm delail number is displayed by pressing [QJ or
~ while pressing the DATA I CHANGE I switch Refer to 4.3 the
troubleshooting countermeasure table for the meanings and countermeasures
(4) Rate of turn (R.OT) display
The I R.O.T 1 of the data selection indicator lights when pressing the I <l SEL
switch number of times, and the rate of turn (R.O.T.) (unit deg/min) is displayed
The turn rate order can be specified when the R.OT is displayed For that method,
refer to 3.2.11 (4)
(5) Ship's heading (HOG) display
The I HDG I of the data selection indicator lights when pressing the I <I SEL I switch
number of times, and ship's heading (unit de g) is displayed in the data display
(6) All display lamps light by pressing the I LAMP TEST I switch and the buzzer
sounds At this time the dimmer is released and aU lamps light with the highest
illumination
(7) Dimmer (DIMMER)
Illumination of display lamps, etc., darkens by pressing the I -0 I switch and brightens
by pressing the ~ switch Adjust it to match brightness around
3.2.13 OI1eJ"ating method when alarm gencl"aled
(I) Operation when alarm is generating
After confirming the name of the blinking indicator lamp in the AUTO unit press the
I ALARM ACK I switch to stop tbe buzzer sound The group alarm indicator
changes from blinking to continuous lighting Lighting of the individual alann indicator
shows continuation of the alarm condition, and not lighting of the individual alarm
indicator shows recovery of the alarm condition
(2) Confirmation of generating alarm detail number
When the generating alarm detailed content is to be known for check and maintenance
press the I <l SEL I switch number of times 10 display the I ERR I Further, by
pressing I -0 I or 00 while pressing the OAT A I CHANGE 1 switch, the other
alarm detail number can be called up
Every pressing the ~ switch displays Ihe alarm generated after currently
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Trang 193.2.14 Initial selling proceuun> for Lhe GYI'o-Log III'
The following procedure is required to execute whenever the gyro bearing output is olher
Ihan serial signal (when sLep/synchro signal)
This operation must be performed while not in turning
(I) Place the system selection switch in "No I" or "No.2" position
(3) Confirm that the data display of AUTO unit displays heading ("HOG" lamp is IiI) If
"HOG" is notliL, make "HOG" lit by pushing "SEL" switch some limes
IHDGII ROT I ISPD II ERR I
(4) Continue to push "CHANGE" switch of AUTO unit until to the ilem (7)
(Do not remove "CHANGE" switch until the iuitial heading input completed.)
I CHANGE I
!
'-_+: -,I L I _ _ ~
Continue Lo push it (After 5 seconds it proceed to (5)
(5) "GY rc" is displayed in the data display of AUTO unit
(The display of "GYre" means that illums into Ihe inilial inpul mode.)
D8JBD
3 - 25
Trang 213.3 MislIse (Mis-ope.·alion) 311d Countermeasures
(I )Wetting the autopilot operation unit (facia panel) by water or drink may caLIse
growing mold or performance reduction
Do not steer or operate with drinking water, etc
Wipe off liquid at once if the stand is wetted
Proper use of this system gives full functions of the system
The following phenomena (operation), however, will occur by miss LIse or miss handling for other than the original purpose, which TOKIMEC can forese.e
Phenomena (operation) in misuse Countermeasure
When operating the steering mode CD Be sure to confirm that when the steering
selection switch instead of the system mode selection switch or the system selection switch or vice versa by mistake selection switch is operated, the steering
mode indicator or the system indicator
is changed over
(2) Understand the difference between the
steering mode selection switch and the
system selection switch by each position
of the left and right, shapes of knobs and length of switching sound
Course does not change even by turning The course does not change by turning the the course setting knob knob only to prevent malfunction
Turn the course setting knob while pressing the knob
The display of the SET COURSE display Stop turning and release the hand from the changes during turning the course setting knob The system recognizes completion of knob, but the course does not change the course selling, and the ship starts course
changing
Adjusted values do not change even by Use control knobs (5 pes) located at the right side turning knobs of the auto steering when No.1 system is selected with the (pilot) adjusting section system selection switch, and knobs located at the
left side (5 pes) when No.2 system is selected
3 -27
Trang 23NO Phenomena (operation) in misuse Countermeasure
.,yncllronizing knob is too heavy to tum) unil to OFF (Refer to 3.2.1 (I) b about
The compass repeater does not follow-up synchronizing method)
after synchronizing the repeater
each unit
(HAND) mode when turning the steerillg the center For details of this alarm, refer to
11 The ship's speed indicator (option) of the When pressing the I <lSEL I switch until the
lighL~, the ship's speed input setting is displayed
When this setting is manual, change the set value to match the current ship's speed For olher selling select Ihe inpul signal source according to 3.2 12 (I) of this manuaL
12 The Data selection indicator is off and The display of " 000 d" indicates Ihe rudder
" 000 d" is displayed in the data means that the rudder is in center position (with
What nothing displayed is due 10 simply in blank display and HDG goes 10 lit by pushing Ollce
<lSEL I switch, displaying the heading (Refer
to 2-4 (2) @b)
3 -29
Trang 253.4 Description for an optional Override steering feature
3.4.1 Construction
· Override reset unit (Normally installed in steering stand)
Either one of follows should be selected
· NFU steering lever type (OVERRIDE NFU CONTROLLER [to be used with Override reset unit j)
3.4.2 Steering modes available witb override steering
Override steering is normally available other than non-follow up steering (In accordance with a specific steering specification, the steering modes available with override is changed.)
When the Ready lamp is lit, override steering is available (Refer to Fig 3-11, 3-12)
3.4.3 Override steering method
3.4.3.1 In case of NFU override
(I) Starting of override steering
on
b Pull the pin stopper inserted in the OVERRIDE NrU CONTROLLER out and turn the lever as
desired direction, Then steering control is overtaken to the OVERRIDE NFU CO'ITROLLER and is available with the lever (~ indicator of this controller is lit.) At this time, a intermittent sound sounds at the steering stand side, and the then chosen steering mode indicator blinks And ~ lamp
in the Override Reset Unit is lit
c The rudder is taken during turning the lever, and the rudder stops motion when the lever is returned to the neutral position
d To return the rudder to the center, turn the lever in the reverse direction till the rudder returns to the center while seeing the rudder angle receiver (indicator)
f While this steering lever is kept turned and the rudder follow normally during override steering, a quick intermittent sound "Pip, pip, pip, ." sounds at the steering position
(2) Stop 0 f override steering
a For releasing override steering, push the IRESET j switch on the Override Reset Unit at the steering position or in the steering stand to return to the original steering mode The other way to release is to turn the mode selection switch to the other steering mode like non-follow up (NFU) steering mode
b After releasing override steering, when to the auto steering, the actual heading just after the override steering is used as the auto steering set course
c, After releasing override steering, when to the remote auto steering (NAV) , the actual heading just after the override steering is used as the auto steering set course At the moment, a heading order if provided from any external navigation equipment is invalid for auto steering and then the alarm for the external set course invalid (k:AUTIONl ~ E 13.1) is activated If the remote auto steering is desired to resume,
once turn the mode selection switch to the other steering mode and select the remote auto steering agatn
3 - 31