Safety Precautions
If the geared motor is not used correctly, the motor may be damaged, and you may get an electric shock.
This manual uses two safety levels to give you cautions. These two levels are “DANGER” and “CAUTION”
levels.
Danger
Caution
Note that even if the safety level is
cases. All the cautions, therefore, are very important. Be sure to observe the cautions.
Indicates that an operation error may cause an imminently hazardous situation, which,
if not avoided, will result in death or serious injury.
Indicates that an operation error may cause a potentiall y hazardous situation, which, if
not avoided, may result in minor or moderate injury or physical damage only.
Caution
, the operator may be seriously injured or dead in some
DANGER
General
● Before starting operation, be sure to read the instruction manual and the nameplate affixed to the motor,
and fully understand the caution written in the instruction manual and the nameplate.
Ambient conditions and operation conditions:
● Keep flammable substances away from the geared motor. Flammable substances may cause a fire or
explosion.
● If a lift is designed for human beings, do not use the geared motor for such a lift. This is specified in the
Building Standard Law.
● To use the geared motor for a lift, be sure to install a safety device on the machine side. Without a safety
device, the lifted load may fall from the lift.
Wiring:
● Be sure to ground the motor, and install a dedicated circuit breaker for each motor to prevent electric
leakage. If you ignore this caution, you may get an electric shock.
● In accordance with the Technical Standard for Electric System and the Regulation for Internal Line
specified by the corresponding electric power company, carefully carry out wiring so that safety can be
ensured.
● Install an appropriate motor circuit protector for each geared motor. Without any protector, a problem of
the motor circuit may result in a fire.
● Be sure to supply the power of the specified voltage. If a wrong power is supplied, a fire may start.
● Always follow the connection drawing in the instruction manual when connecting the power cable.
Operation:
● If a load is lifted, do not manually release the brake. If the brake is released, the lifted load may fall.
● In the inverter operation mode, operate the motor in the specified frequency range. If the frequency is
out of the specified range, the motor may be damaged.
● Never go near or touch the rotating parts(shaft, etc)during operation, Failure to observe this could load to
entanglement or injuries.
● Operate the motor while observing the speed range specified in the outline drawing, specification, catalog,
etc. If the motor speed is out of the specified range, the motor may be damaged or explode.
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CAUTION
Ambient conditions and operation conditions:
● When the motor malfunctions, the grease may leak from the motor and the leaked grease may damage the
outside environment. For this reason, place an oil pan to prevent leakage of grease.
● Be sure to attach a safety cover to the belt, chain, gear, etc.
● Do not place any-object which may interface with ventilation around the geared motor. Failure to observe
this warning may cool air which may cause burn injury and or fire.(In the case of 60 or 90W model.)
Operation:
● Use the motor while observing the allowable loading torque range and the allowable starting frequency
range.
● During operation, if the motor generates an abnormal noise, vibrates abnormally, or does not ensure the
specified characteristics, be sure to stop operating the motor, and then inspect or overhaul the motor.
● During operation, do not touch the geared motor. If you touch the motor, you may be injured or burn
your fingers.
Maintenance and modification:
● Do not modify the product.
● Before starting maintenance, inspection, or repair, be sure to turn off the power.
● Geared motor will become quite hot during operation. Take care not to touch the geared motor with your
hands or body. Failure to observe this could lead to burns etc.
Disposal:
● Treat the motor as general industrial waste when disposing of it.
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Contents
Verification at Receiving Product ............................................................................ 4
1.
2. Ambient Conditions and Operation Conditions ....................................................... 4
3. Installation and Adjustment ..................................................................................... 4
4. Connection ............................................................................................................... 4
5. Wiring ...................................................................................................................... 5
6. Motor Line Connection and Output Shaft Rotational Direction ............................... 6
7. Brake Connection Method and Coasting Time ........................................................ 7
8. Brake Structure ........................................................................................................ 9
9. Operation ............................................................................................................... 10
10. Maintenance ........................................................................................................... 10
11. Please Contact Us .................................................................................................. 11
Labeling(product name) based on the Marking for the Restriction of the Use of
12.
Certain Hazardous Substances in Electrical and Electronic Equipment :Geared
Motor ..................................................................................................................... 13
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1. Verification at Receiving Product
(1) Verify that the model number, output value, speed value, etc. written on the nameplate do not differ
from the customer specified values.
(2) Check that no parts are damaged during transportation.
(3) Check the screws and bolts for looseness.
2. Ambient Conditions and Operation Conditions
(1) Keep flammable substances away from the geared motor. Flammable substances may cause a fire
or explosion.
(2) If a lift is designed for human beings, do not use the geared motor for such a lift. This is specified
in the Building Standard Law.
(3) To use the geared motor for a lift, be sure to install a safety device on the machine side. Without a
safety device, the lifted load may fall from the lift.
(4) If the loading side applies an extremely large load, the motor speed may exceed the rated speed.
In this case, install a safety device on the machine side so that the motor speed cannot exceed the
rated speed. If the motor speed is too high, the geared motor may be damaged.
3. Installation and Adjustment
(1) The grease lubrication system is adopted for all the types. So the geared motor can be installed in
any direction. (The motor is greased before delivery from our factory.)
(2) When the motor malfunctions, the grease may leak from the motor and the leaked grease may
damage the outside environment. For this reason, place an oil pan to prevent leakage of grease.
(3) Be sure to attach a safety cover to the belt, chain, gear, etc.
(4) Keep the motor away from the humidity and dust. Adjust the ambient temperature in the range of
−15°C to +40°C, and the relative humidity to 90% or less. Do not freeze the motor. In addition,
check that the motor can be cooled quickly.
(5) Select a rigid frame that can ensure effective thermal conductivity, and then firmly install the motor
so that the bolts cannot be loose. Install the motor so that the flatness can be 0.2 mm or less.
4. Connection
(1) When connecting the geared motor to the machine, center
the motor so that decentering from the machine can be 0.05
mm or less.
Use the flexible coupling for easy centering.
(2) Adjust the sag of the chain to approximately 4% of the span
length (refer to Fig. 1). If the sag is too large, starting the
motor may cause a large shock, and the geared motor may
be damaged.
(3) To protect the motor from damage caused by an overhung
load, adjust the sprocket, gear, and pulley positions so that
the load position can be on the output shaft joggling side.
(4) The tolerance for the sprocket and coupling holes should be
approximately H7. When inserting a part into a hole, do
not hit the part using a hammer. If a part is hit with a
strong force, bearings and gears cannot be engaged
properly.
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Fig. 1 Sag of chain
0.04 × L or less
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