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Mitsubishi Electric GM-S, S2, SP Instruction Manual PDF
Summary of Content for Mitsubishi Electric GM-S, S2, SP Instruction Manual PDF
1
SAFETY PRECAUTIONS
Carefully operate the Geared Motor. An operation error may cause injury or electric shock.
To ensure operator safety, the safety precautions are ranked as DANGER and CAUTION In this instruction manual. When a dangerous situation may occur if handling is mistaken leading to fatal or
major injuries.
When a dangerous situation may occur if handling is mistaken leading to medium
or minor injuries or physical damage.
Note that some items described as may lead to major results depending on the situation. In any case,
important information that must be observed is described.
General
Before starting use of this Geared Motor always read this manual and the nameplate.
Operation conditions and ambient conditions Do not place any object inflammable near the geared motor. Failure to observe this warning may case fire or
explode. If you have to place an organic solvent or explosive powder near the geared motor for some reasons, use
the GM-D series explosion-proof geared motor.
Do not use the geared motor as elevator for human transport. Use of a geared motor for such a purpose is prohibited
by the Building Standard Law of Japan.
If the equipment is to be used with an elevator, be sure to burnish with a safety device to prevent the elevator from
accidental falling. Failure to observe this warning may cause physical injury and damage to the equipment.
Wiring Be sure to ground the geared motor, and install a circuit breaker for each motor. Without grounding or circuit
breaker, you may get an electric or physical injury.
To wire the geared motor, be sure to observe the technical standards for electric equipment or interior wiring code by
the corresponding electric power company.
Install an optimum motor protector on each motor. Without any protector, the motor may cause a fire at the time of a
problem.
Be sure to supply the specified voltage to the geared motor. If the voltage is too high, a fire may be caused.
Always follow the connection drawing in the terminal Box or the instruction manual when connecting the power
cable.
Operation
If a load is lifted up, do not release the brake using the manual brake release unit. The load may be dropped
During inverter operation ,be sure to observe the specified frequency range. If the frequency is out of the specified
range. the motor may be damaged.
Failure observe this warning may cause physical injury and or damage to the equipment.
Never go near or touch the rotating parts(shaft, etc)during operation, Failure to observe this could load to
entanglement or injuries.
Operate under the specified rotation speed described in Outline drawings, Specifications, or Catalogue. Otherwise,
geared motor may explode or damage.
DANGER
DANGER
CAUTION
CAUTION
General
If the geared motor is equipped with eyebolt or eyeplate ,be sure to use eyebolt or eyeplate to lift and transfer a load
Operation conditions and ambient conditions
In equipments must avoid oil or grease, furnish with protective devices like oil pan, in order to protect from oil leakage
caused by failure or lift of the manufactured products. Safe guards should be furnished around rotating parts to avoid danger to persons.
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.
Operation
To operate the geared motor, observe the allowable loading torque range and the allowable starting frequency range.
During operation, if the motor generators an abnormal noise, vibrates extremely, or shows abnormal characteristics, be
sure to stop the motor, and inspect or overhaul the motor.
During operation, keep your body away from geared motor. If you touch the geared motor during operation, you may be
injured or get burn.
If the geared motor is equipped with a one-touch manual brake release lever, be sure to lock the brake release lever in the
lever holder before starting operation.
Maintenance and modification
The manufacturer will not warrant and will not responsible for the product modified or repaired by the user himself.
Be sure to turn off the power before inspecting or repairing the motor.
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.
CAUTION
2
Contents
1Product check 4
2Operation Condition and Ambient Conditions 4
3Installation and Adjustment 4
4Connection 5
5Guidelines for replacing the old geared motor 6
6Wiring 6
7. Motor Wiring 7
8Output Shaft Rotational Direction 7
9Brake Wiring 8
10Brake(0.10.4kW) 10
11Brake(0.75kW 2.2kW) 12
12Dust & Waterproof type 14
13Operation 16
14Maintenance and Inspection 16
15Troubleshooting 17
16Contact Us 18
17Labeling(produnt name) based on the Marking for the Restriction of
the Use of Certain Hazardous Substances in Electrical and
Electronic Equipment :Geared Motor 19
General
If the geared motor is equipped with eyebolt or eyeplate ,be sure to use eyebolt or eyeplate to lift and transfer a load
Operation conditions and ambient conditions
In equipments must avoid oil or grease, furnish with protective devices like oil pan, in order to protect from oil leakage
caused by failure or lift of the manufactured products. Safe guards should be furnished around rotating parts to avoid danger to persons.
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.
Operation
To operate the geared motor, observe the allowable loading torque range and the allowable starting frequency range.
During operation, if the motor generators an abnormal noise, vibrates extremely, or shows abnormal characteristics, be
sure to stop the motor, and inspect or overhaul the motor.
During operation, keep your body away from geared motor. If you touch the geared motor during operation, you may be
injured or get burn.
If the geared motor is equipped with a one-touch manual brake release lever, be sure to lock the brake release lever in the
lever holder before starting operation.
Maintenance and modification
The manufacturer will not warrant and will not responsible for the product modified or repaired by the user himself.
Be sure to turn off the power before inspecting or repairing the motor.
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.
CAUTION
3
1. Product Check
When you receive our product(Geared Motor),verify that you have received the correct Product.
(1) Check that the model number, output, speed, etc, you specified are written on the nameplate.
(2) Check that product is not damaged during shipment.
(3) Check the screws and bolts are loose.
2. Operation Condition and Ambient Condition (1) Do not place any object inflammable near the geared motor. Failure to observe this warning may case fire or explode
(2) Do not use the geared motor as elevator for human transport. Use of a geared motor for such a purpose is prohibited by the Building Standard
Law .
(3) If the equipment is to be used with an elevator, be sure to burnish with a safety device to prevent the elevator from accidental falling. Failure
to observe this warning may cause physical injury and damage to the equipment.
(4) When geared motor is rotated from the driven machine, set the safety device on the driven machine not to rotate over the specified geared motor
rotation speed. Otherwise, geared motor may explode or damage.
3. Installation and Adjustment
(1) If the geared motor is equipped with eyebolt or eyeplate ,be sure to use eyebolt or eyeplate to lift and transfer a load.
(2) In equipments must avoid oil or grease, furnish with protective devices like oil pan, in order to protect from oil leakage caused by failure or
lift of the manufactured products.
(3) Safe guards should be furnished around rotating parts to avoid danger to persons.
(4) The grease lubrication method is adopted for all the motor models.The grease lubrication type Geared Motors can universal direction. The
grease lubricated are filled with grease prior to shipping
(5) Install the motor at an appropriate place that ensures low humidity and little dust. Check that the ambient temperature is between -15 and
+40,and the relative humidity is 90% or less. Check that the motor cannot be frozen at the installation place. In addition, check the motor
cooling condition of the installation place. The motor should not be extremely heated.
(6) Install the motor on a rigid and thermal conductive base using bolts having strength of 8.8 or above. Adjust the flatness of the installation
surface to 0.2 mm or less.
4
1. Product Check
When you receive our product(Geared Motor),verify that you have received the correct Product.
(1) Check that the model number, output, speed, etc, you specified are written on the nameplate.
(2) Check that product is not damaged during shipment.
(3) Check the screws and bolts are loose.
2. Operation Condition and Ambient Condition (1) Do not place any object inflammable near the geared motor. Failure to observe this warning may case fire or explode
(2) Do not use the geared motor as elevator for human transport. Use of a geared motor for such a purpose is prohibited by the Building Standard
Law .
(3) If the equipment is to be used with an elevator, be sure to burnish with a safety device to prevent the elevator from accidental falling. Failure
to observe this warning may cause physical injury and damage to the equipment.
(4) When geared motor is rotated from the driven machine, set the safety device on the driven machine not to rotate over the specified geared motor
rotation speed. Otherwise, geared motor may explode or damage.
3. Installation and Adjustment
(1) If the geared motor is equipped with eyebolt or eyeplate ,be sure to use eyebolt or eyeplate to lift and transfer a load.
(2) In equipments must avoid oil or grease, furnish with protective devices like oil pan, in order to protect from oil leakage caused by failure or
lift of the manufactured products.
(3) Safe guards should be furnished around rotating parts to avoid danger to persons.
(4) The grease lubrication method is adopted for all the motor models.The grease lubrication type Geared Motors can universal direction. The
grease lubricated are filled with grease prior to shipping
(5) Install the motor at an appropriate place that ensures low humidity and little dust. Check that the ambient temperature is between -15 and
+40,and the relative humidity is 90% or less. Check that the motor cannot be frozen at the installation place. In addition, check the motor
cooling condition of the installation place. The motor should not be extremely heated.
(6) Install the motor on a rigid and thermal conductive base using bolts having strength of 8.8 or above. Adjust the flatness of the installation
surface to 0.2 mm or less.
4. Connection
(1) To properly connect the Geared Motor to the machine, reduce the eccentricity between the motor and machine to 0.05mm or less. Use the
flexible coupling to easily connect the motor to the machine. Refer to Fig.1.
(2) Adjust deflection amount of the chain to 4% of the span(refer to Fig.2). If the deflection amount is too large, a great shock may be applied
at starting, and the geared motor may be damaged by the shock.
(3) To prevent damage caused by the overhang load, adjust the positions of the sprocket, gear, pulley, etc. so that the loading position can be
closer to the joint of the output shaft and the gear case (refer to Fig.3).
(4) The tolerance for the holes of the sprocket, coupling, etc. should be H8. Smoothly install the sprocket, coupling etc. using the tap on the
output shaft (refer to Fig.4)
(5) Do not use any hammer for installation. Application of a large force may damage the bearing, gear, etc.
Fig.1 Installation of coupling
Fig.2 deflection amount of chain
Fig.3 Sprocket position
Fig.4 Sprocket installation
Level Level
UnacceptableAcceptable
d
d3or more
Adjust the loading position
closer to the gear case.
0.04L or less
5
5. Guidelines for replacing the old geared motor
When replacement of the old geared motor, please note the following.
(1) There is mounting compatible, but the total length will be longer. When installation, please check the interference of surrounding devices.
Also, consider ventilation for the motor cooling, please keep a distance between the fan cover and the wall, as in Figure 5. Dimensions
FC2 is minimum dimensions of the wall-to-fan cover in consideration of ventilation for motor cooling, however, we recommend to set the
wall-to-fan distance so that when conducting brake maintenance or etc, the fan cover can be removed.
(2) Please reconsiders the design of the wiring equipment of the breakers and etc since starting current may increase.
(3) Since the rotation speed may increase and the power consumption increase, please consider the necessity of countermeasures such as setting
the rotational speed of the load machine to the same as previous one by changing the sprocket ratio or the output frequency of the inverter.
(4) Please reconsider the acceptable number of starts and the acceptable number of starts per hour, since moment of inertia may increase.
(5) When using non-brake geared motors, period of free-run may be longer. Also, when it comes to brake-in geared motors, especially when
simultaneous braking method, brake holding period may be longer. Therefore according to necessity, please adopt separated braking
method or Direct current (quick) braking method.
Fig.5 Dimension of the wall-to-fan cover Dimension in ( ) shows the value with brake 6. Wiring
(1) Be sure to ground the geared motor, and install a circuit breaker for each motor. Without grounding or circuit breaker, you may get an
electric or physical injury.
(2) To wire the geared motor, use high-quality wiring parts, and be sure to observe the technical standards for electric equipment or interior
wire code by the corresponding electric power company. the outline is shown in Table 1. If the wiring distance is long, note that the voltage
drop increases.
(3) Install an protective devices on each motor. Without any protector, the motor may cause a fire at the time of a problem.
(4) Be sure to supply the specified voltage to the geared motor. If the Voltage is too high, a fire may be caused.
Table 1Motor Wiring3-phase induction motor Ref. Indoor wiring regulations 3705
Motor
type
Output
(kW)
Minimum wire
thickness (mm)
(See Note 1)
Maximum wire
line length(m)
(See Note 2)
Overcurrent breaker
(A)(Note3) Over scale ammeter
A
Minimum grounding
wire thickness(mm)
Full-voltage starting
200V 400V 200V 400V 200V 400V 200V 400V 200V 400V
S
0.1, 0.2 1.6 1.6 144 580 15 15 5 5 1.6 1.6
0.4 1.6 1.6 81 326 15 15 5 5 1.6 1.6
SP
0.75 1.6 1.6 54 217 15 15 5 5 1.6 1.6
1.5 1.6 1.6 32 130 30 15 10 5 1.6 1.6
2.2 1.6 1.6 23 94 30 15 10 5 1.6 1.6
Note1The minimum wire thickness is for when three wires are place in a conduit.
Note2Maximum wire line length is a measure that voltage drop is 2% or less.
Note3Overcurrent breaker is for power distribution. Motor breaker for motor protection, please select the ones that conform to the motor rated
output.
Output (kW) FC1(mm) FC2(mm)
0.75 64(127) 20
1.5 73(145)
40
2.2 83(150)
3.7 95(170)
5.5
117(197)
7.5
6
5. Guidelines for replacing the old geared motor
When replacement of the old geared motor, please note the following.
(1) There is mounting compatible, but the total length will be longer. When installation, please check the interference of surrounding devices.
Also, consider ventilation for the motor cooling, please keep a distance between the fan cover and the wall, as in Figure 5. Dimensions
FC2 is minimum dimensions of the wall-to-fan cover in consideration of ventilation for motor cooling, however, we recommend to set the
wall-to-fan distance so that when conducting brake maintenance or etc, the fan cover can be removed.
(2) Please reconsiders the design of the wiring equipment of the breakers and etc since starting current may increase.
(3) Since the rotation speed may increase and the power consumption increase, please consider the necessity of countermeasures such as setting
the rotational speed of the load machine to the same as previous one by changing the sprocket ratio or the output frequency of the inverter.
(4) Please reconsider the acceptable number of starts and the acceptable number of starts per hour, since moment of inertia may increase.
(5) When using non-brake geared motors, period of free-run may be longer. Also, when it comes to brake-in geared motors, especially when
simultaneous braking method, brake holding period may be longer. Therefore according to necessity, please adopt separated braking
method or Direct current (quick) braking method.
Fig.5 Dimension of the wall-to-fan cover Dimension in ( ) shows the value with brake 6. Wiring
(1) Be sure to ground the geared motor, and install a circuit breaker for each motor. Without grounding or circuit breaker, you may get an
electric or physical injury.
(2) To wire the geared motor, use high-quality wiring parts, and be sure to observe the technical standards for electric equipment or interior
wire code by the corresponding electric power company. the outline is shown in Table 1. If the wiring distance is long, note that the voltage
drop increases.
(3) Install an protective devices on each motor. Without any protector, the motor may cause a fire at the time of a problem.
(4) Be sure to supply the specified voltage to the geared motor. If the Voltage is too high, a fire may be caused.
Table 1Motor Wiring3-phase induction motor Ref. Indoor wiring regulations 3705
Motor
type
Output
(kW)
Minimum wire
thickness (mm)
(See Note 1)
Maximum wire
line length(m)
(See Note 2)
Overcurrent breaker
(A)(Note3) Over scale ammeter
A
Minimum grounding
wire thickness(mm)
Full-voltage starting
200V 400V 200V 400V 200V 400V 200V 400V 200V 400V
S
0.1, 0.2 1.6 1.6 144 580 15 15 5 5 1.6 1.6
0.4 1.6 1.6 81 326 15 15 5 5 1.6 1.6
SP
0.75 1.6 1.6 54 217 15 15 5 5 1.6 1.6
1.5 1.6 1.6 32 130 30 15 10 5 1.6 1.6
2.2 1.6 1.6 23 94 30 15 10 5 1.6 1.6
Note1The minimum wire thickness is for when three wires are place in a conduit.
Note2Maximum wire line length is a measure that voltage drop is 2% or less.
Note3Overcurrent breaker is for power distribution. Motor breaker for motor protection, please select the ones that conform to the motor rated
output.
Output (kW) FC1(mm) FC2(mm)
0.75 64(127) 20
1.5 73(145)
40
2.2 83(150)
3.7 95(170)
5.5
117(197)
7.5
- 7 -
7. Motor Wiring (1)To rotate the 3-phase motor in the opposite direction, exchange the connected terminals between 2 wires( 2 of 3wires;R,S, and T).For the
Single-phase motor. select connection 1 or 2 from the following table to determine the rotational direction.
Output
Terminal connection Wire connection method Output shaft rotational direction
0.10.4 Single-phase
Co nn
ec tio
n di
ag ra
m
Main coil Start Coil centrifugal(governor) switch running capacitor strating caoacitor
Co nn
ec tio
n m
et ho
d
0.12.2 three-phase
Co nn
ec tio
n m
et ho
d
Co nn
ec tio
n m
et ho
d
8. Output shaft Rotational Direction The output shaft rotational direction column shown in the following figure shows the rotational direction for the 2 or4 stage Gear units type. For the 3 stage Gear units type, the output shaft will rotate in the opposite direction.
Output(kW) Gear ratio Stage of gear units
Rotation direction (viewed from output shaft end)
0.1 1/31/300 2 CounterClockwise
1/401/200 3 Clockwise 1/2701/1200 4 CounterClockwise
0.2 1/31/30 2 CounterClockwise
1/401/200 3 Clockwise 1/2701/1200 4 CounterClockwise
0.4
1/3 3 CounterClockwise 1/51/30 2 CounterClockwise
1/401/200 3 Clockwise 1/2701/1200 4 CounterClockwise
0.75 1/31/30 2 CounterClockwise
1/401/200 3 Clockwise 1/2701/450 4 CounterClockwise
1.5 1/31/30 2 CounterClockwise
1/401/200 3 Clockwise
2.2 1/31/30 2 CounterClockwise
1/401/100 3 Clockwise
connection
counterclockwise
For 2or4 stage of gear units
For2or4 stage of gear units
For 2or4 stage of gear units
Z Z1 U1 U2
Z2 Z1 U1 U2
connection
connection2 connection clockwise
counterclockwise(0.1kW) (0.2,0.4kW)
S2(0.10.4kW) SP(0.752.2kW)
U1 Z1 U2 Z2
S(0.10.4kW)
power source
U1 U2 Z1 Z2
U1 U2 Z2 Z1
power source
power source
power source
connection2
7
- 8 -
9.Brake Wiring (1) The brake motion delay time (the time before brake start to operate after turning off the power) depends on brake connection method and
load specifications. Select appropriated connection method by considering the functions of machine that attached to motor. (2) Braking connection method,
Braking wires are connected to simultaneous braking method from factory shipment,for the other braking method, please open the terminal box to change braking connection circuit as shown below.
Table.2 Power supply wiring for motor and Brake Motor
Connection(factory shipment) Simultaneous
braking method Separated braking
method Direct current(quick)
braking method
IN PU
T
OU TP
UT
Si
ng le
Ph as
e 0.1
0.4
kW
ci
rc ui
t
Te rm
in al
s c on
ne ct
io n
Motion Delay time 0.20.55s 0.10.3s 0.010.04s
Th re
e Ph
as e
0.1
2.2
kW
ci rc
ui t
Te rm
in al
s c on
ne ct
io n
Motion Delay time 0.20.55s 0.10.3s 0.010.04s
Notes: 1) Speaking sound, generated from brake lining, is not malfunction and does not affect to performance. 2) For elevator or high accuracy positioning drive, please use direct current (quick) braking method. 3) For simultaneous braking method or direct current (quick) braking method, be sure to connect lead wire (marked with )
to the terminals U and B2. And, for separated braking method, be sure to disconnect it. 4) For separated braking method or direct current (quick) braking method, remove one of the connection bar as shown above. 5) For 0.1kW to 2.2kW model, terminal block has 2 lines of terminals (upper and lower line). Be sure to connect power supply
wires to upper line terminals. If connect to the lower line, brake will not be released. 6) Motion delay time may slightly vary from load specification or from brake torque.
U
pp er
li ne
Lo w
er li
ne
U1 U2 Z2 Z1
For S0.10.4kW
For S20.20.4kW
SP0.752.2kW
Internal wiring
Internal wiring
U
pp er
li ne
Lo w
er li
ne
U1 U2 Z2 Z1
U
pp er
li ne
Lo w
er li
ne
Internal wiring
8
- 9 -
Table.3 Power supply wiring for motor and Brake with inverter drive
Motor
Connection(factory shipment) Simultaneous
braking method Separated braking
method Direct current(quick)
braking method
IN PU
T
OU TP
UT
In ve
rt er
d riv
e 0.1
2.2
kW
ci rc
ui t
Te
rm in
al s c
on ne
ct io
n
Motion Delay time 0.10.3s 0.010.04s
Notes: 1) Braking wires are connected as simultaneous braking method from factory shipment. For inverter driving, please open terminal box to
change braking connection circuit to those are shown above. And be sure to disconnect lead wire (marked with ) 2) For separated braking method or direct current (quick) braking method, remove the connection bar as shown above. 3) Terminal block has 2 lines of terminals (upper and lower line). Be sure to connect power supply wires to upper line terminals. If connect
to the lower line, brake will not be released. 4) For inverter driving, connect braking wires directly from power source. do not connect through inverter. 5) When use inverter drive, at low frequency, the noise may be slightly louder. This noise is not malfunction and does not affect to
performance. 6) For inverter driving, the power factor improving capacitor cannot be connected to the motor circuit. Brake usage precautions 1. Connect only brake power without power the motor may deteriorate the motor. 2. If power-factor improving capacitor is attached, be sure to use separated braking method. For inverter driving, the power factor improving
capacitor cannot be connected to the motor circuit. 3. To drive the motor with an inverter or to control the input power, please connect the brake to the power source side of the inverter.
(Connecting to the output side of the inverter may deteriorate the power source equipment) 4. In the inverter-driving mode, the noise may be slightly louder in the low-frequency zone. However, this type of noise will not deteriorate
any motor functions. 5. To operate motor at frequency of 25Hz or less, observe the rate time of 1 hour or 25% ED. 6. To use inverter-driving for 400V class motor, surge voltage from wiring fixed number may occur between the terminal,and this voltage
may deteriorate the insulation of motor. Please use the method below for solution. (1) Insulation strengthening method
Please use 400V class inverter-driving insulation strengthening geared motor. In Mitsubishi geared motor, insulation strengthening motor are shown below. - Standard geared motor ---0.1~2.2kW
(2) Inverter side surge voltage controlling method At the secondary side of inverter, please connect the filter for control surge voltage of the motor which decrease within 850V. For Mitsubishi inverter-driving, please connect optional surge voltage controlling filter (FR-ASF-H) at the secondary side of inverter.
For S0.10.4kW
For S20.20.4kW
SP0.752.2kW
Internal wiring
Internal wiring
U
pp er
li ne
Lo w
er li
ne
U1 U2 Z2 Z1
U
pp er
li ne
Lo w
er li
ne
9
10. Brake(0.10.4kW)
1) Structure and operation
Fig.6 shows the structure of the brake. The non-excitation braking method (spring-driven braking method) is used for all the models
Item DESCRIPTION
1 Brake cover
2 Seal washer
3 screw
4 spring
5 Hexagon nut
6 -ring
7 Fan cover
8 Clamp screw
9 Field core
10 Armature
11 Brake lining
12 Side plate
13 End-face V seal
(out door type)
14 Fan
2)Gap adjustment procedure (Refer to the structural drawing of the brake (Fig.6).
If the brake is abraded due to long use, the gap between the field core and Armature will be
larger than the limit gap specified in Table 4. Such a large gap may cause a braking operation
error or brake releasing error. For this reason, if the gap is larger than the limit gap, adjust the
gap by following the procedure below.
Step Loosen the fan cover clamp screws (4 screws), and then remove the fan cover.
The fan is fixed by a C-shaped snap ring. Remove the fan and End-face V
seal(outdoor type), and then loosen screws (item 3) to remove the brake cover
(item 1).
Step Equally adjust the gap (A) between the field core and Armature to the initial gap
(refer to Table 4) by tightening the outer hexagon nut (item 5).
Step Use the specified thickness gauge (initial thickness gauge) to measure the gap. If
the lower limit thickness gauge can be inserted into the gap but the upper limit
thickness lower limit thickness gauge cannot be inserted into the gap at any point
around the cores, judge that gap is properly adjusted.
Step Attach the brake cover, and then tighten the screws (item 3) through the seal
washers (item 2).
Notes: To adjust the gap, observe the following items.
Adjust the gap so that the gap difference (difference between the maximum gap and
minimum gap) is reduced to 0.05 mm or less.
Periodically check the gap.
Be careful not to damage the O-ring (item 6) during adjustment. The waterproofing or
soundproofing function may be deteriorated.
If the thickness of the brake lining is reduced to the limit value specified in Table4,
replace the lining.
Fig.6
Step
Step
Step
The brake cover depth size of 0.1kW and
0.2kW differs from 0.4kW.
10
3 Brake specifications
Table4 shows the standard specifications for the brake.
Table 4 Standard Specifications for Brake
Brake
model
Output
(kW)
Number
of poles
(P)
Brake power
supply
Voltage(V)
Braking
voltage
DC(V)
Braking
Current
(A)
Braking torque
(Nm)
*Note 1 and 2
Gap(mm) Lining thickness
Initial gap
Limit
gap
Initial
thickness
Limit
thickness
SNB 0.2 0.1,0.2 4
200 90 0.16
1.91 0.15(inserted)-0.25 (not inserted) 0.4 6.0 5.3
400 180 0.08
SNB 0.4 0.4 4
200 90 0.18
3.82 0.15(inserted)-0.25 (not inserted) 0.4 5.9 4.9
400 180 0.09
Note 1: The braking torque values shown in the above table are the static friction torque values. Dynamic friction torque values will be
approximately 80% of the static friction torque values.
Note 2: At starting first operation or after replacing the brake lining, the braking torque may be less than the specified torque. In this case, fit the
friction surfaces of the brake by applying the brake several times with a light load
4 Rectifier specifications
Table 5 shows the standard specifications for the rectifier .
Table 5 Standard specifications for Rectifier
Output
(kW)
Power supply
voltage (V)
Output voltage
DC(V)
Control method Rating
Ambient temperature and
humidity
Installation
0.2
200 90 Half wave
rectification method
Continuous
15+40
90%RH or less
On terminal block
400 180
0.4
200 90 Half wave
rectification method Continuous
15+40
90%RH or less
On terminal block
400 180
5 Manual brake releasing procedure
a) Simplified manual brake releasing
Step Loosen the fan cover clamp screws (4 screws), and then remove the fan cover. After that,
remove the fan and End-face V seal.(outdoor type)The fan is fixed by a C-shaped snap
ring.
Step Loosen the screws (item 3), and then remove the brake cover (item 1). Screw the machine
screws into the threaded holes of the side plate. The machine screws will push the
Armature to release the brake. At the completion of manual brake releasing, be sure to
reset the brake.
Notes: To manually release the brake, observe the following items:
Be sure to check that the brake is properly released.
Basically, reducing the gap to zero will release the brake. To check whether the brake is
released, manually turn the motor shaft. If you can turn the shaft, judge that the brake is
released.
If a large tightening force is applied to the simplified manual brake release bolt, the Armature
or side plate may be distorted or damaged, and normal operation may not be possible. For this
reason, carefully tighten the manual release bolt.
If the manually released brake is not reset, do not operate the motor. Before starting full-scale
operation, be sure to check that the brake functions properly.
For simplified manual brake releasing, up to 50 times of releasing is allowable.
b One-touch manual brake releasing (optional)
On the top of the fan cover, there is a brake release lever.
Turn the lever 90to release the brake. (Do not turn the lever
more than 90. The brake may not be released.) At the
completion of manual brake releasing, be sure to return the
lever to the initial position.
.For one-touch manual brake releasing, up to 100 times of
releasing is allowable.
The gap adjustment (maintenance) point of one-touch
manual brake releasing
The resolution point at the time of the gap adjustment
Open a manual lever and exclude combination with the
pin of right and left.
Each right and left pulls up pin.
Please refer to the gap adjustment point for the following
work.
The point to reassemble after the maintenance
Confirm it so that a D cut parallelism department of the
manual lever combination department turns to the slowdown
machine side and insert it from a fan cover hole.
Open a manual lever and combined with the pin of right and left.
Attention
Of the manual lever please be careful to be able to spread too much.
A wobble occurs in the combination with the pin when I open too much it,
and a manual lever is easy to come to come off.
Step
Step
initial position
Position of manual lever releasing Manual lever
Lever fixation
pinBoth side
Pin
View of B View of C
side of Reduction side of Reduction
Insert direction
Connection of manual lever
11
11. Brake0.752.2kW
1) Structure and operation
Fig. 7 shows the structure of the brake. The non-excitation braking method (spring-driven braking method) is used for all the models
Item DESCRIPTION
1 Brake cover
2 Flat washer
3 screw
4 Locknut
5 Hexagon nut
6 -ring
7 Fan cover
8 Clamp screw
9 Field core
10 Armature
11 Brake lining
12 Side plate
13 End-face V seal
(Outdoor type)
2) Gap adjustment procedure (Refer to the structural drawing of the brake (Fig.7).
If the brake is abraded due to long use, the gap between the field core and Armature will be
larger than the limit gap specified in Table 6. Such a large gap may cause a braking operation
error or brake releasing error. For this reason, if the gap is larger than the limit gap, adjust the
gap by following the procedure below.
Step Loosen the fan cover clamp screws (4 screws), and then remove the fan cover.
The fan is fixed by hexagon socket head set screws. Remove the fan and End-face
V seal(Outdoor type), and then loosen the screws (item 3) to remove the brake
cover (item 1).
Step Inside the brake cover, loosen 3 locknuts(item 4), and then equally adjust the
gap(A) between the field core and Armature to the initial gap (refer to Table 6) by
tightening the outer hexagon nut(item 5).
Step Use the specified thickness gauge (initial thickness gauge) to measure the gap. If
the lower limit thickness gauge can be inserted into the gap but the upper limit
thickness gauge cannot be inserted into the gap at any point around the cores,
judge that gap is properly adjusted.
Step Tighten 3 locknuts(item 4)
Step Finally check the gap(A) in the same way as step 3.
Step Attach the brake cover, and then tighten the screws (item 3) through the flat
washers (item 2).
Notes: To adjust the gap, observe the following items.
After adjusting the gap, be sure to tighten al the nuts.
After tightening the locknuts (item 4) at step 4, the gap may be slightly changed. For
this reason, be sure to check the gap at step 5.
Adjust the gap so that the gap difference (difference between the maximum gap and
minimum gap) is reduced to 0.05 mm or less.
Periodically check the gap.
Be careful not to damage the O-ring (item 6) during adjustment. The waterproofing or
soundproofing function may be deteriorated.
If the thickness of the brake lining is reduced to the limit value specified in Table6,
replace the lining.
Fig.7
12
3 Brake specifications
Table 6 shows the standard specifications for the brake.
Table 6 Standard Specifications for Brake
Brake
model
Output
(kW)
Number
of poles
(P)
Brake power
supply
Voltage(V)
Braking
voltage
DC(V)
Braking
Current
(A)
Braking torque
(Nm)
*Note 1 and 2
Gap(mm) Lining thickness
Initial gap
Limit
gap
Initial
thickness
Limit
thickness
SNB 0.8 0.75
4
200 90 0.24
7.16 0.15(inserted)-0.25 (not inserted) 0.5 7.7 6.7
400 180 0.12
SNB1.5 1.5
200 90 0.25
14.3 0.20(inserted)-0.30 (not inserted) 0.5 10 8.5
400 180 0.12
SNB2 2.2
200 90 0.37
21.0 0.20(inserted)-0.30 (not inserted) 0.5 10 8.5
400 180 0.18
Note 1: The braking torque values shown in the above table are the static friction torque values. Dynamic friction torque values will be
approximately 80% of the static friction torque values.
Note2: At starting first operation or after replacing the brake lining, the braking torque may be less than the specified torque. In this case, fit the
friction surfaces of the brake by applying the brake several times with a light load
4 Rectifier specifications
Table7 shows the standard specifications for the rectifier .
Table7 Standard specifications for Rectifier
Output
(kW)
Power supply
voltage (V)
Output voltage
DC(V)
Control method Rating
Ambient temperature and
humidity
Installation
1.5
2.2
.
5 Manual brake releasing procedure
a) Simplified manual brake releasing
For this brake releasing method,prepare the brake release bolts shown in Table 8
Step Loosen the fan cover clamp screws (4 screws), and then remove the fan cover. After
that, remove the fan and End-face V seal(outdoor type). (The fan is fixed by hexagon
socket head setscrews.)
Step Loosen the screws (item 3), and then remove the brake cover (item 1). Screw the machine
screws into the threaded holes of the side plate. The machine screws will push the
Armature to release the brake. At the completion of manual brake releasing, be sure to
reset the brake.
Table 8 Simplified manual brake release bolt
Brake model Simplified manual brake release
bolt
b One-touch manual brake releasing (optional)
The written contents of one-touch manual brake releasing(optional) are the same as that of 0.1
0.4kW.
Please refer to P11
Notes: To manually release the brake, observe the following items:
Be sure to check that the brake is properly released.
Basically, reducing the gap to zero will release the brake. To check whether the brake is released,
manually turn the motor shaft. If you can turn the shaft, judge that the brake is released.
If a large tightening force is applied to the simplified manual brake release bolt, the Armature or
side plate may be distorted or damaged, and normal operation may not be possible. For this reason,
carefully tighten the manual release bolt.
If the manually released brake is not reset, do not operate the motor. Before starting full-scale
operation, be sure to check that the brake functions properly.
For simplified manual brake releasing, up to 50 times of releasing is allowable.
Simplified manual brake
releasingpattern 1
bSimplified manual brake
releasingpattern 2
13
12. Dust & Waterproof type Please confirm the following notes when waterproof GM uses it.
Labyrinth Plate for output shaft
Labyrinth Plate that rotates with the shaft is installed in the output shaft. Please do not touch Labyrinth board while rotating.
Washing
Turn off the power supply when you wash it.
Do not Wash with steam and hot water. Make the warm water washing the warm water of 80C or less.
Do not wash the high pressure.
Do not rub the surface of painting with the hard one such as metallic brushes. It causes the painting peeling off.
Connecting wires
The cable must use the water-proof type. Water might go into it.
Do the installation and tightening Water proof connecter surely. Water might go into it.
1Labyrinth board
1) Labyrinth plate is installed in the output shaft. Note the rotation with the
shaft.
Refer to a catalog or externals dimensional drawing for details.
2) Do not add the outside power to Labyrinth plate. It comes in contact with the
case and it is likely to damage it.
3) Do not bite the foreign body between Labyrinth plate and the case and do not
drive in a crowded state.
2Inverter driving
The standard and the range of a low torque are different for the magnetic flux vector control method of 0.1 to 0.4kW.
magnetic flux vector control
Standard type Waterproof type
0.1 to 0.4kW 3 to 60Hz 20 to 60Hz
3 Wiring work
1) The cable for wiring must use the water-proof type.
2) It must not be confirmed that packing is installed, when you tighten
terminal box cover.
3) The terminal box cable taking out part installs Water proof connecter
OA-W1611-13L (made of ohm electric Ltd.), and note the following.
The acceptable electric wire diameter is 8.5 to 11.5.
Water is infiltrated when the electric wire not suited is used, and there
is a possibility of electric breakdown.
Tighten the Water proof connecter surely. (recommended tightening torque
1.2 to 1.5Nm)
Paint the seal medicine (Three bond # 1211 etc.) between the entrance of Water
proof connecter and the cable.
Labyrinth plate (Rotation)
Output Shaft (Rotation)
Water proof connecter
Terminal Box
CAUTION
14
4 Brake gap adjustment
1) Structure and operation
The figure below shows the structure of the brake. The shaft seal structure are different from standard.
2) Resolution and assembly
The resolution and the assembly when the brake gap is adjusted are the same to standard points.
Parts only for the waterproof type are installed and note the following point.
Refer to the attached paper manual for the gap adjustment points.
Resolution
Detach the Fan cover and the fan. Loose the pan small screw. And detach the Brake cover together
with Labyrinth Plate and Seal support.
Assembly
It is confirmed that Spacer is installed in the shaft and after installing the brake cover,
push the Labyrinth Plate until hitting at Spacer.
5Others
1) When starting and stopping, End-face V seal sound might be generated. (There is no problem on the function.)
2) It asks for the maintenance of the output shaft and the output shaft oil seal at our factory or our service center.
3) Please confirm there is not loosening in Water proof connecter in the periodical inspection.
1
3
6
4
5
2
1 Labyrinth Plate
2 Spacer
3 End-face V seal
4 Seal support
5 Pan small screw
6 Brake cover
7 Fan
8 Fan cover
7
8
15
13. Operation If a load is lifted up, do not release the brake using the manual brake release unit. The Load may be dropped.
During inverter operation, be sure to observe the frequency range specified in the catalogue. If the frequency is out of the specified range ,the
motor may be damaged.
Before Operation
(1) Check the bolt tightening condition at each section.
Check that foundation bolts, sprocket bolts, coupling bolts, etc. are tightened property.
(2) Check the electric system
Check that the electric system is properly wired, and the terminal box cover is closed. Also check that the breaker capacity and over current
protective relay values are properly set.
Operation
(1) To operate the geared motor, observe the allowable loading torque range and the allowable starting frequency range.
(2) During operation, if the motor generators an abnormal noise, vibrates extremely, or shows abnormal characteristics, be sure to stop the
motor, and inspect or overhaul the motor
(3) During operation, keep your body away from geared motor. If you touch the geared motor during operation, you may be injured or get burn
other
(1) At starting, apply a light Load. When the motor speed is increased to the full speed, apply the specified load.
(2) To stop operation, be sure to turn off the power switch.
14. Maintenance and Inspection
Do not modify the Geared Motor.
Be sure to turn off the power before inspecting or repairing the motor.
(1) Daily Inspection
Item Method Detail of inspection
Load Current Ammeter Within the rated current specified in the nameplate.
Noise Hearing
Directly check the noise with your ear using a noise detector bar. The motor
should not generate any abnormal noise.
Surface temperature Thermometer
Obtain the motor frame surface temperature rise value by subtracting the
ambient temperature value from the motor frame surface temperature value. The
temperature rise should be 40to 50.
Vibration
Vibration
meter
Check the vibration of the gear case and frame. The obtained vibration values
should be 4.9m/s 2
or less.
Lubricant leak Visual check Check that no grease or oil leaks from geared motor.
Chain Visual check
Check that the chain is not extremely defection or too tight. Also check that
the chain moves smoothly.
(2) Periodic Inspection
Periodic inspection the motor and replace the damaged parts while referring to the table below (In case of operating 8 hours a day)
Item Interval Detail of inspection
Grease Every 45year
Replace the grease every 10,000 hours of operation or every 4 or 5
years, whichever is earlier.
Grease: NLGI No.000 of Urea Grease with Extreme Pressure
manufactured by JX Nippon Oil & Energy Corporation.
Oil seal Every23years If the Lubricant leaks from the seal, replace the oil seal.
Chain tension Every 6 months If the chain is loose , readjust the tension.,
Looseness of Bolts Every 6 months If the Bolts are loose, retighten the bolts.
Bearing Every23years If the bearing generators an abnormal noise, replace the bearing.
Insulation resistance Every 6 months
Check the insulation resistance using a 500V megger. The
insulation resistance should be 1M or more. If the resistance is
less than 1M,dry the coil at 90or less in an oven
Brake
Gap adjustment Every 6 months Adjust the gap to the initial range.
Brake lining thickness Every1years If the lining is less than limit thickness, replace the lining.
O-ring Change Every23years
Periodically check the o-ring If the O-ring is damaged, replace the O-ring
Note: Just after replacement of the brake lining, the braking torque may be less than the specified torque. In this case , fit the friction surfaces of
the brake by applying the brake several times with a light load.
(3) Others
When oil oozes from set field of motor, if it does not develop, it can be used as it is because there is no problem on a performance. When oil
poses a problem, use after wiping off oil. This oil is a grease ingredient applied to very small quantity at the time of the assembly in a factory.
16
15. Troubleshooting
If the geared motor has a problem, determine the cause and solve the problem while referring to the table below
Problem Cause Remedy
Grease leak from Oil seal Damaged oil seal Replace the oil seal
Grease leak from cast
surface
Blowholes or cracks on cast surface Replace the cast part.
Grease leak from mating
face of gear case, bracket
G, etc.
(1)Loose clamp bolt
(2)Distorted cast Part
(1)Tighten the clamp bolt.
(2)Replace the cast part
Grease leak inside motor Damaged oil seal
Replace the oil seal.
If the oil leaks to the stator coil, repair the motor at the
motor factory.
Abnormal noise of bearing
Dust or foreign material is in the
bearing
Replace the bearing.
Abnormal noise of gear
(1) The gear catches foreign material
(2) The gear is abraded due to overload.
(1)Replace the gear,
(2)Reduce the load by lowering the current to the rated current
value
Other problems
(1)Resonance is caused because the
Gearedmotor installation base is not
rigid
(2) The vibration of machine is
transferred to the gearedmotor to
cause problem
(3) The eccentricity between the
machine and the gearedmotor is too
large.
(1)Increase the rigidity of the motor installation base.
(2)Increase the rigidity of the motor installation base.
(3)Readjust the eccentricity to 0.05mm or less.
Non-rotating output shaft
(1)Power source connection error
(2)Damaged gear or shaft
(1)Check the power source
(2)Check the load
Extreme rise of
temperature
(1)Overload operation
(2)The starting frequency is too high
(3)The ambient temperature is 40 or
above.
(1)Reduce the load by lowering the current to the rated current
value
(2)Lower the frequency.
(3)Ventilate the room to reduce the ambient temperature.
Abnormal noise of motor
(1)Foreign material
(2)Damaged bearing
(3)Brake gap adjustment error
(4)Abraded brake lining
(5)Seized brake coil
(6)Failure of the rectifier
(7)Defective centrifugal(governor) switch
(1)Remove the foreign material.
(2)Replace the bearing
(3)Adjust the brake gap.
(4)Adjust the brake gap, or replace the brake lining.
(5)Replace the entire brake unit
(6)Replace the rectifier
(7)Replace the governor switch
Brake function is not work
(1)Foreign material
(2)Life of the lining
(3)Unevenly adjusted brake gap
(4)Overload
(5)The manually released brake is not rest
(1)Remove the foreign material.
(2)replace the brake lining
(3)Adjust the brake gap
(4)Reduce the load by lowering the current to the rated current
value
(5)Rest the brake to the initial condition
17
16. Contact us
When you contact us, let us know the following items
(1) SERIAL No
(2) Model number
(3) Output
(4) Reduction ratio or speed
(5) Part name(see the construction)
(6) Quantity
(7) Desired delivery date
Warranty 1Warranty term and scope of warranty
When failure by the responsibility by the side of our company occurs for a product during the term of a warranty, our company will fix a
product gratuitously through the store or the service company of our company which purchased. However, when the business trip repair to
overseas from domestic is required, or when the business trip repair to the remote place according to a detached island and this is required, I
do the cost price which engineer dispatch takes as onerousness.
Warranty term
The warranty term for the product shall be 18 months after the date of delivery or 12 month from the product starting operation, whether be
shorter. Moreover, the term of warranty of a repair products does not become long more than the term of warranty before repair.
Scope of warranty
(1)Inspection
Please inspect your product by yourself. Our service personal, however, can inspect your product at your request with change to you. If a
problem is detected by the inspection ,we will discuss with you to determine whether we are responsible for the problem. If we are
responsible for the problem, we will repair your product free of charge.
(2)Repair
In the following cases (,,,,,,, and ) , we will charge the repair expense, parts replacement expense, and traveling
expense to you. In the other cases, we will repair your product free of charge.
)The problem is caused due to inappropriate storage or handling of your product, carelessness, negligence , or operation in inappropriate
facility or with inappropriate machine, etc.
)The problem is caused because you have modified our product without our approval.
)The problem is caused because you have used lubricating oil other than recommendation of our products.
)The problem is caused because periodical inspection is not performed.
)The problem is caused because you have used our product while ignoring the product specifications.
)The problem is caused because you have used accepted that the consumable parts (Bearing, oil seal, etc.) specified as the instructions
manual etc. Even if it was a normal operating condition were able to protect when performed maintenance and inspection normally.
)The problem is caused because natural disasters, such as an external factor by inevitability, such as a fire an unusual voltage, and an
earthquake, thunder, and storm and flood damages.
)The problem is caused because the reason which was not able to be foreseen with the level of the technology at the time of our company
shipment.
)Other cases where you are responsible for the problem.
These services are applied only in Japan.The foreign country is unavailable.We appreciate your understanding.
2Exclusion
Even if a problem of our product causes damage of other manufacturers machine, etc., we will not compensate any loss caused by the
problem of our product or damaged other manufacturers machines (loss of your company or your customer), even in the warranty period
Since it may change without a notice, please give beforehand the specification indicated to a catalog, an instructions manual, or technical data
every knowledge.
3Repair after stopping production
Even if production of the same model is stopped, we will repair your product for 7 years from the date of production stoppage.
However, the parts manufactured by casting and mold have a case where allowed to consider it as the alternative parts which have the same
function.
The product supply after production stoppage cannot respond including spare parts.
4. Change of Product specifications
Specifications listed in our catalogs, manuals or technical documents may be changed without notice.
5. Application and use of the Product
(1) For the use of the product, its applications should be those that may not result in a serious damage even if any failure or malfunction occurs
in the product, and a backup or fail-safe function should operate on an external system to the product when any failure or malfunction occurs.
(2)The product is designed and manufactured as a general purpose product for use at general industries. Therefore, applications substantially
influential on the public interest for such as atomic power plants and other power plants of electric power companies, and also which require
a special quality assurance system, including applications for railway companies and government or public offices are not recommended, and
we assume no responsibility for any failure caused by these applications when used. In addition, applications which may be substantially
influential to human lives or properties for such as airlines, medical treatments, railway service, incineration and fuel systems, man-operated
material handling equipment, entertainment machines, safety machines, etc. are not recommended, and we assume no responsibility for any
failure caused by these applications when used. We will review the acceptability of the abovementioned applications, if you agree not to
require a specific quality for a specific application. Please contact us for consultation.
See the nameplate
18
19
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