Mitsubishi Electric GM-S, S2, SP Instruction Manual PDF

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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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