TOHMEI ANTI ROLLING GYRO ARG250T User manual

ARG250T OPERATION INSTRUCTIONS
ARG250T 取扱説明書
Model ： MSM-25000T-B1
型式： MSM-25000T-B1
English version ： page1 – page30
日本語 ： P.31 ～ P.60

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 1 －
Contents
Page
Preface .......................................................................................... 2
Important Notice ......................................................................... 3
1 ． For your safety ........................................................................ 5
1.1 Warning description ........................................................... 5
1.2 Warning labels .................................................................... 6
1.3 Precautions of Operation ...................................................... 7
2 ． Configurations ......................................................................... 8
2.1 ARG unit. .............................................................................. 8
2.2 Motor Driver ............................................................................. 9
3 ． Check before operation ........................................................... 10
4 ． Operating the ARG ................................................................. 16
4.1 Method of operation .............................................................. 18
4.2 Restarting ............................................................................ 19
4.3 Automatic Fast return functions ............................................ 20
4.4 Safety functions .................................................................... 21
5 ． What to do in case of problems .............................................. 22
6 ． Maintenance ............................................................................ 25
7 ． Installation ............................................................................... 30
8 ． Compliance with European standards .................................... 30

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 2 －
Preface
This operation instructions summarized important information for proper operation of
Anti Rolling Gyro ( ARG ). Please be sure to read this manual before operation.
Please be sure to submit this manual to customers who operate the ARG .

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 3 －
Important Notice
■ Purpose and Application of Use
・ The ARG suppresses rolling motion of the ship.
・ The ARG applies a principle that the Gyro torque (force) is generated by
inclination of the flywheel rotation at high speed.
■ General Information
・ In order to safely operate the ARG
(a) Only the repairmen, who have received the specified training about the
ARG , are permitted to perform maintenance and inspection other than
items mentioned in this manual.
(b) Before operation of the ARG , carefully read this manual of the ARG for
comprehending the details. If starting the work with insufficient knowledge,
it may cause the ARG failure or an accident resulting in injury or death.
(c) Do not disassemble and modify the ARG by yourself. If the ARG is
disassembled or modified by the customer,
－ It may cause a decrease in the ARG performance.
－ It may endanger human life.
－ It may cause a health problem.
－ It may cause damage to the ARG or ship.
(d) Please contact the Sales Agent for installation or removal of the ARG . If
installation or removal of the ARG is performed by the customer, it may
result in injury and damage to the ARG and ship.
・ Please observe the applicable governmental and local laws and regulations.
・ Tohmei Industries co., Ltd. is not responsible for any damages and losses that
happened to the customer except for the first customer who purchased from the
Sales Agent.
・ Please observe the governmental and local regulations for exportation of the ARG .
・ Please observe the governmental and local regulations for disposal of the ARG .

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 4 －
■ Important Information for Operation Safety
・ The most important purpose of safety measures is to prevent the persons from
an accident resulting in injury or death as well as to protect the ARG and ship
from avoidable trouble.
・ For preventing injury/death in an accident and the ARG from damage, follow the
cautions, rules, and instructions described in this manual giving the top priority to
safety. If ignored,
a) It may endanger human life.
b) It may cause a health problem.
c) It may cause damage to the ARG or ship.
・ Tohmei Industries co., Ltd. cannot foresee all possible danger existing in the ARG ,
resulting from human error, and in the environment where the ARG is used.
There are many “Musts”, “Can’ts” and “Don’ts”, and it is impossible to mention all
in this manual or warning labels.
Therefore, general safety measures must be taken in addition to the instructions
described in this manual.
・ Tohmei Industries co., Ltd. is not responsible for any damage and hindrance
resulting from customer’s carelessness or lack of required attention to the
specified rules shown in this manual.
■ About Operation Instructions
・ This operation instructions are written for native readers of English. When this
ARG is handled by non-English-speaking people, give the people fully training
on safety.
・ The copyright of this manual is held and reserved by Tohmei Industries co., Ltd.
No drawing and no technical description in this manual regardless of partial or
whole may be published, reproduced, copied, photographed, translated, or
transcribed into electronic medium without written permission of Tohmei
Industries co., Ltd. in advance.
・ The ARG may differ from the pictures and drawings shown in this manual.
・ The contents of this manual may be changed without prior notice.
・ Carefully keep this manual in a certain place so that anybody can read it as the
need arises.
・ If there are any questions or doubts, please contact the Sales Agent.
(“Contact” (last page))

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 5 －
1. For your Safety
1.1 Warning description
■ Description of Labels
“Warning labels” and “Warning descriptions” in this manual warn expected dangerous
situation that may occur during operation.
If they are ignored, serious injuries or accidents corresponding to the respective warning
sign may result. In extreme case, there is also a possibility of death, damage to the ARG
or ship, and environmental fracture.
Warnings Meanings of Warnings
IMPORTANT
Indicates “IMPORTANT” subjects that are observed in
handling the ARG .
If the ARG is handled with ignoring this indication, it could
result in death or serious accident.
DANGER Indicates a dangerous situation. If ignored, it could result
in death, serious injury, serious property damage or
environmental damage.
CAUTION Indicates a dangerous situation. If ignored, it could result
in minor injury, property damage or environmental
damage.
■ Meanings of the symbols
Symbols Meanings Examples
Prohibition
sign
“ “ indicates prohibition.
Detail is shown in the inside of the symbol, or
shown by illustration or sentence near the symbol.
The right illustration means “
DO NOT
DISASSEMBLE ”.
DO NOT
DISASSEMBLE
Caution
sign
“ “ indicates danger or caution.
Detail is shown in the inside of the symbol, or
shown by illustration or sentence near the symbol.
The right illustration means “
DANGER OF
ELECTRIC SHOCK ”.
DANGER OF
ELECTRIC SHOCK
Direction
sign
“ “ indicates mandatory contents.
Detail is shown by illustration, or sentence near
the symbol or inside the symbol.
（ General direction ）

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 6 －
1.2 Warning labels
ARG nuit
Motor Driver
Danger of electric shock.
Do not disassemble.
Do not close.
Hot surface
（ Both dampers ）
Danger of electric shock.
Do not disassemble.
Hot surface
（ Both covers ）
Do not place objects.
Do not close.
Power connector
Safety device
connector

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 7 －
1.3 Precautions of Operation.
Observe the following when operating.
IMPORTANT
General Precautions
Be sure to read this manual and understand the contents.
Operation Environment
・ Do not operate in heavy weather, with high waves or strong winds.
・ The ARG is only designed to improve the comfo
rt of you and passengers on
the ship.
The ARG is not intended to make it safe sailing out in heavy weather.
・ Do not quick-turn repeatedly during the ARG operation.
Maintenance
・ Perform the pre-operational inspection.
・ Have the periodic inspection performed by the Sales Agent every two years.
・ Contact the Sales Agent for wiring of the ARG.
Operational problems
If abnormalities occur during operation, immediately turn off switch to shut
down the ARG . Contact the Sales Agent. (“Contact” (last page))
Installation
The model, numbers of the ARG unit and the Motor Driver are decided for
each ship. Never divert the ARG unit and the Motor Driver to other ships.
Disposal
Observe the governmental and local regulations for disposal of the ARG .

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 8 －
2. Configurations
2.1 ARG unit
Table 2-1 ARG unit （ 1EA ）
Item Specifications
Name ARG 250T
Model MSM-25000T-B1
Dimensions 700mm(height) x 1,020mm(width) x 720mm(depth)
27.6 inches(height) x 40.2 inches(width) x 28.3 inches(depth)
Weight Approx. 700kg / 1543 lbs
Power supply
Supplied exclusive Motor Driver(MAA-2000/4000A-A200)
Single-phase 220 to 240VAC 50/60Hz
Three-phase 200 to 240VAC 50/60Hz
Ambient
temperature -10 to 40
℃
Power
consumption *
1)
Single-phase ： Approx. 4.8kW(Max) 3.5kW(Max) (Steady-state)
Three-phase ： Approx. 4.3kW(Max) 3.0kW(Max) (Steady-state)
Anti-Rolling
Torque Approx. 25,000 Nm (Max)
Angular
momentum Approx. 4,250 - 5,000Nms
Rotational
speed Approx. 3,200 - 3,750rpm
Noise *
2)
80dBA maximum
Vibration *
2)
1 m/s
2
maximum
Performance
・ The
ARG
suppresses rolling motion of the ship.
・ The ARG applies a principle that the Gyro torque (force) is generated by
inclination of the flywheel rotating at high speed.
・ The ARG stops automatically in abnormal circumstances (excessive load,
abnormal temperature, etc.).
Others Start up duration to the rated speed: Approx. 40 minutes
To stop the operation completely from the steady state: Approx. 60 minutes.
*1) Power consumption varies with the customer generator.
*2) Measurement as per TOHMEI’s specification.
The measurements data depend on measurements conditions (installation place,
measurements method, etc.).
ARG unit
Frame
Cover
Damper
Blowhole
Installation points （ 8 places ）
Thermo Label
（ reference ）
Power connector
Safety device connector

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 9 －
2.2 Motor Driver
Table 2-2 Motor Driver （ 1EA ）
Item Specifications
Model MAA-25000B-A200
Dimensions 400mm(height) x 350mm(width) x 180mm(depth)
15.7 inches(height) x 13.8 inches(width) x 7.1 inches(depth)
Weight Approx. 15kg / 33.1 lbs
Control method Inverter control
Ambient
temperature -10 to 40
℃
Humidity 5 to 95% （ with no condensation ）
Atmosphere
Do not be exposed to dust, direct sunlight, corrosive or
flammable gases, oil mist, vapor or water drops.
（ Pollution Degree 2 （ IEC60664-1 ））
Power supply *
3)
Single-phase 220 to 240VAC 50/60Hz
Three-phase 200 to 240VAC 50/60Hz
Options
outer connecting
terminal
Please prepare
by customer
① Remote switch: connect to the Motor Driver to remote
control the ARG operation (ON/OFF).
The ARG can be switched on /off by this remote switch.
② Start check lamp: connect to the Motor Driver to make sure
the ARG is in operation or not.
③ Rotation rate check lamp: connect to the Motor Driver to
make sure the ARG had reached the rated rotational
speed (steady state) or not.
Others The
ARG
’s operating condition is checked by Monitoring
window.
*3) The Motor Driver is able to use both single-phase and three-phase. Please
choose appropriate power input as needed.
Motor Driver
： Screw for lid （ 8 places ）
Lid
PL (Product Liability) Label
Bracket for installation
Installation points （ 4 places ）
Monitoring window

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 10 －
3. Check before operation
Please inspect the items in Table 3-1.
Please make sure of “ Warning ” and “ Caution ” in this manual.
DANGER
Do not operate in heavy weather, with
high waves or strong winds.
The ARG is only designed to improve the
comfort of you and passengers on the ship.
The ARG is not intended to make it safe sailing
out in heavy weather. Do not operate in heavy
weather with high waves or strong winds.
Doing so could cause heat generated inside
Damper and result in damage to the ship, and/or
ARG itself.
Do not quick-turn repeatedly during the
ARG operation.
The ARG is intended to suppress rolling of the
ship at anchoring or trolling. Repeating
quick-turn could change a sense of control of
ship.
Doing so could result in damage to the ship,
malfunction of the ARG or accident.
Do not use damaged parts.
Do not use damaged parts.
Doing so could result in injury or malfunction.
Please contact the Sales Agent whose address
is shown at the end of this manual.
Do not place flammable materials near
the ARG.
When the ARG is in operation, it is heated.
Do not place flammable materials or
heat-sensitive items (which are deformed or
damaged e.g. by heat) near the ARG .
Doing so could result in malfunction or fire.
Do not close blowholes of the ARG.
Do not close blowholes of the ARG .
Closing blowholes will heat the inside of the
ARG . Closing a blowhole of the ARG could
result in malfunction or fire.
Damage
Flammable
materials
B
lowhole
High waves

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 11 －
DANGER
Never operate the ARG when it is
exposed to the seawater / rain.
The ARG is not waterproofed.
Never operate the ARG when it is exposed to
the seawater / rain.
Doing so could result in electric shock or
malfunction.
Do not operate switches with wet hands.
Do not operate switches with wet hands.
Doing so could result in electric shock.
Use all installed ARG units.
Use all installed ARG units.
Using only a few of them could lead to excessive
load and it could result in malfunction.
Use the ARG at the specified
temperature.
Use the ARG unit and Motor driver at the
specified temperature.
Although ARG unit will be shut down when the
temperature gets high.
Not doing so could result in malfunction or fire.
Keep a space of 200mm (7.9 inches)
around the ARG.
Since the ARG takes in outside air to ventilate,
the space of 200mm (7.9 inches) is required
around the ARG ( ARG unit and Motor Driver ) to
provide enough ventilation.
Make sure that there is no vertical gap in
the anti-vibration rubber, plate or
washer.
If your ARG uses the anti-vibration rubber, make
sure that there is no vertical gap in the
anti-vibration rubber, plate or washer.
Not doing so could result in damage to the ARG
or ship.
ON
ON
ON
M
ore than
200mm
Specified
Temperature

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 12 －
DANGER
Check the discoloration of the thermo
label attached to damper.
If the 80 or 90 of the thermo label discolors,
contact the Sales Agent.
Not doing so could result in damage to the ship,
malfunction of the ARG or injury.
Do not use the ARG, if there is any oil
leakage from the damper.
If there is any oil leakage from the damper,
contact the Sales Agent.
Not doing so could result in damage to the ship,
malfunction of the ARG or injury.
Connect the ship’s ground lead and the
ARG unit’s ground lead.
Connect the ground lead of each Motor Driver
to the ground connection point in the ship.
Ground the ARG unit using one of the bolts
that secure the unit to the ship.
Not doing so could result in electric shock.
Check installation screws of the Motor
Driver for looseness every three
months.
Re-tighten the four installation screws after
operating the ARG at sea for a month.
After that, make sure that screws are not
loosened every three months.
Not doing so could result in damage to the ship,
malfunction or injury.
oil
Thermo label

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 13 －
CAUTION
Do not place objects, sit on or step on
the ARG cover.
The ARG cover is not made of strengthened
material.
If you place objects, sit on or step on the ARG
cover, it could result in damage.
During operation, the ARG components inside
the cover are rotating at high speed. Therefore,
the broken ARG cover could cause injury or
malfunction.
Do not allow extraneous materials and
dust to enter through the blowholes of
the ARG.
The ARG cover has blowholes for inside cooling.
Do not allow extraneous materials and dust to
enter through the blowholes of the ARG .
Doing so could result in malfunction.
Do not use the ARG in locations exposed
to dust.
The ARG cover has blowholes for inside cooling.
Do not use the ARG in locations exposed to dust.
Doing so could result in malfunction.
Be sure to use an exclusive Motor Driver
for the ARG.
Be sure to use the Motor Driver supplied by
TOHMEI.
Not doing so could result in malfunction.
Check bolts and nuts (eight installation
bolts and nuts) for looseness every three
months.
Re-tighten the eight installation bolts or nuts after
operating the ARG at sea for a month.
After that, make sure that bolts or nuts are not
loosened every three months. If you found
loosening bolts or nuts, contact the Sales Agent.
Not doing so could result in malfunction.
Blowhole

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 14 －
(1) Pre-operational inspection
Please perform pre-operational inspection shown in table 3-1.
Table 3-1 ARG Pre-operational inspection List （ 1 / 2 ）
No Inspection
Area Inspection Item Priority Result Countermeasures
1
ARG
installation
There must be no
looseness in the
installation bolts, nuts
(eight bolts and nuts)
and spring washer.
○
Re-tighten bolts or
nuts.
Tighten Torque
130N ･ m
2
There must be no
dust, combustibles/
flammable materials
or seawater/water
near the ARG unit.
◎
Improve
installation
environment.
3
There must be
enough ventilation
provided to cool the
ARG down.
○
4
ARG
unit There must be no
trace of being
exposed to seawater /
water on the ARG
unit.
◎
Contact the Sales
Agent.
Do not operate
the ARG .
5
The blowhole of the
ARG unit must not be
closed.
○
Improve the ARG
unit to solve the
problems.
6
There must be no
objects on the ARG
cover.
○
7
Check the
discoloration of the
thermo label as
follows.
① No discoloration
(all white)
② Red orange （ 70 ℃）
③ Blue （ 80 ℃）
④ Red （ 90 ℃）
◎
①②
：
No problem
③④ ：
Problem
Contact the Sales
Agent.
Change
the Damper

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 15 －
Table 3-1 ARG Pre-operational inspection List （ 2 / 2 ）
No Inspection
Area Inspection Item Priority Result Countermeasures
8
ARG
unit There must be no
oil leakage from the
Damper.
◎
Contact the Sales
Agent.
Change
the Damper.
9
There must be no
looseness in the
grounding bolt.
○
Re-tighten
grounding bolt.
Tighten Torque
65N ･ m
10
Motor
Driver
There must be no
trace of being
exposed to seawater /
water on the Motor
Driver.
◎
Contact the Sales
Agent.
Do not operate
the ARG .
11
There must be no
looseness in the
installation screws
(four screws).
○ Re-tighten screws.
12
There must be no
dust, combustible
/flammable materials
or seawater/water
near the Motor Driver.
◎
Improve
installation
environment.
13
The blowhole of the
Motor Driver must not
be closed.
○
Improve the Motor
Driver to solve the
problem.
14
Others Check sea area that
the ARG is operated.
・ Do not operate in
heavy weather, with
high waves or
strong winds.
◎ ―
oil

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 16 －
4. Operating the ARG
Please operate the ARG according to the procedure below.
Please make sure of “ Warning ” and “ Caution ” in this manual.
DANGER
Do not remove the ARG cover.
During operation, the inner parts of the ARG are
rotating at high speed. Do not remove the ARG
cover.
Doing so could result in injury.
Do not open the Motor Driver’s lid.
Do not open the Motor Driver’s lid. And do not
touch the inside of the Motor Driver.
Doing so could result in electric shock,
malfunction or fire.
Do not remove the ARG connector
during operation.
Do not remove the ARG connector during
operation.
Doing so could result in electric shock.

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 17 －
CAUTION
Do not approach the ARG unit during
operation.
Do not approach the ARG unit during operation.
Doing so could result in injury.
Do not approach the ARG unit and the
Motor Driver until the ARG completely
stops.
It takes approximately 1 hour until the ARG
completely stops after the remote switch has
been turned off.
Do not approach the ARG unit and the Motor
Driver until the ARG completely stops.
Doing so could result in injury.
Do not touch the ARG unit.
Do not touch the ARG unit during operation or
soon after the ARG stops
because the ARG is hot.
Doing so could result in a skin burn due to the
hot surface.

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 18 －
4.1 Method of operation
Please operate the ARG according to the procedure below.
(1) Starting
*1) If number of the Monitoring window is same as below number shown in Table 5-2, ARG is
normal.
Table 5-2 Indication of the Monitoring window
Elapsed Time Standing 0 to 40 min 40 min after
Indication Blink number
between 110 and 133 gradual increase Steady state between 110 and 133
*2) The ARG takes approximately 40 minutes to reach rated rotational speed after
turning on the remote switch.
(1) Stopping
*1) After turning off the power supply to the ARG , the ARG stops its operation gradually.
It takes approximately 1 hour until the system stops completely.
① “Turn ON” the power generator for the
ARG
on the ship.
② Make sure that the start check lamp is “OFF”.
③
Make sure that the rotation rate chec
k lamp is “OFF”.
④ Make sure that the start check lamp is “ON”.
＜ 40 minutes later
*2
＞
⑤ Make sure that the rotation rate check lamp is “ON”.
⑥ Make sure that there is no unusual noise and vibration
during the ARG operation.
⑦ If the test run is performed on the sea, anti-rolling function
becomes effective in approximately 40 minutes after starting.
Number shown in Table 5-2
Light on
② “Turn ON” the circuit breaker switch.
③ “Turn ON” the remote switch.
*1
① “Turn OFF” the remote switch.
*1
④ “Turn OFF” the circuit breaker switch.
⑤ “Turn OFF” the power generator for
ARG
on the ship.

Anti Rolling Gyro
Model : MSM-25000T-B1
－ 19 －
4.2 Restarting
*1) It takes approximately 1 hour until the ARG completely stops after the remote switch has
been turned off. If you turn on the switch back before the ARG unit has stopped completely,
self shutdown circuit may occur due to over current.
In this case, release the over current of the Motor Driver and then restart the ARG .
It will be better not to restart the ARG for at least 1 hour after shutdown.
*2) If number of the Monitoring window is same as shown in Table 5-2, the ARG is normal.
*3) The ARG takes approximately 40 minutes to reach rated rotational speed after turning on
the remote switch.
② Make sure that the start check lamp is “OFF”.
③ Make sure that the rotation rate check lamp is “OFF”.
⑧ Make sure that the start check lamp is “ON”.
＜ 40 minutes later
*3
＞
⑨ Make sure that the rotation rate check lamp is “ON”.
⑩ Make sure that there is no unusual noise and vibration during
the ARG operation.
⑪ If the test run is performed on the sea, anti-rolling function
becomes effective in approximately 40 minutes after starting.
⑤ Make sure that the
ARG
is stopping completely 1 hour later.
① “Turn OFF” the remote switch.
④ “Turn OFF” the circuit breaker switch.
⑥ “Turn ON” the circuit breaker switch.
*1
⑦ “Turn ON” the remote switch.
*2