Oriental motor BLH Series User manual

HM-5130
Brushless Motor and Driver Package
BLH Series
OPERATING MANUAL
Thank you for purchasing an Oriental Motor product.
This operating manual describes product handling procedures and safety precautions.
• Please read it thoroughly to ensure safe operation.
• Always keep the manual where it is readily available.
Table of contents
1Introduction .................................. 2
2Safety precautions ....................... 4
3Precautions for use ...................... 7
4Preparation................................... 8
4.1 Checking the product .................. 8
4.2 Combination tables .....................9
4.3 Names and function of parts ..... 11
5Installation .................................. 12
5.1 Installation location ................... 12
5.2 Installing the geared type,
combination type parallel shaft
gearhead...................................13
5.3 Installing the combination type
hollow shaft flat gearhead .........15
5.4 Installing the round shaft type ...18
5.5 Installing the pinion shaft type...19
5.6 Installing a load on the geared
type, combination type parallel
shaft gearhead and round shaft
type ...........................................19
5.7 Installing a load on the
combination type hollow shaft flat
gearhead...................................22
5.8 Driver installation ...................... 24
5.9 Installing and wiring in compliance
with EMC Directive ................... 25
6Connection..................................29
6.1 Motor and driver connection..... 29
6.2 Connecting the power supply ... 29
6.3 Connection of input signal and
output signal ............................. 30
6.4 Driver I/O circuit and example
connection ................................ 32
7Operation ....................................33
7.1 Input signals and
output signals ........................... 33
7.2 Rotating direction of the motor
output shaft............................... 40
7.3 Setting the running speed ........ 41
7.4 Setting the acceleration time and
deceleration time ...................... 44
7.5 Parallel operation ..................... 45
8Inspection....................................47
9Troubleshooting and remedial
actions ........................................48
10 Appendix.....................................50
10.1 Accessories (sold separately) .. 50
10.2 Recommended peripherals ...... 51

1 Introduction
−2−
1 Introduction
 Before using the motor unit
This product is designed to be incorporated into general industrial machinery, and
must not be used for other purposes. For the power supply use a DC power supply
with reinforced insulation on its primary and secondary sides. It should be noted that
we are not responsible for any damages caused by ignoring this warning.
 Overview of the product
The BLH series is a brushless motor unit that adopts a slim, high-torque brushless
motor and an open-case high-precision compact driver of 24 VDC input type. The
product is available in three types; a round shaft type which is the optimum for high
speed requirements and a combination type∗equipped with a special-purpose
gearhead which is best suited to high-torque operation by gear speed reduction (a
pinion shaft type∗compatible with the accessory special-purpose gearhead).
∗ The motor with a frame size of 42 mm (1.65 in.) is a geared type. There is no pinion shaft
type available.
 Standards and CE Marking
This product is recognized by UL and certified by CSA, and bears the CE Marking
(EMC Directive) in compliance with the EN Standards.
• Applicable Standards
Applicable Standards Certification Body Standard File No.
BLH015
BLH230
BLH450
BLH5100
UL 60950-1
CSA C22.2 No.60950-1 UL E208200
∗ The names of products certified to conform with relevant standards are represented by
applicable unit model motor and driver part numbers.
• Installation conditions
• The product is to be used as a component within other equipment.
• Overvoltage category: I
• Pollution degree: 2
• Protection against electric shock: Class III equipment

1 Introduction
−3−
• For Low Voltage Directive
• Since this product is based on 24 VDC power supply input, it is outside the
application scope of Low Voltage Directives.
• When applying the equipment incorporating this product to the Low Voltage
Directive, connect the driver power supply input to the DC power supply where
the primary and secondary sides are provided with reinforced insulation.
• Install this product in the equipment built-in type enclosure.
• Enclosure classification
Motor: IP65 (Lead wire type: IP40)
Driver: IP00
• For EMC Directive
This product has received EMC measures under the conditions specified in
“Example of motor and driver installation and wiring” on page28. Be sure to
conduct EMC measures with the product assembled in your equipment by referring
to 5.9 “Installing and wiring in compliance with EMC Directive” on page 25.
 Hazardous substances
RoHS (Directive 2002/95/EC 27Jan.2003) compliant

2 Safety precautions
−4−
2 Safety precautions
Only qualified personnel should work with the product.
Use the product correctly after thoroughly reading the section “Safety precautions”.
The precautions described below are intended to prevent danger or injury to the user
and other personnel through safe, correct use of the product. Use the product only
after carefully reading and fully understanding these instructions.
Warning
Handling the product without observing the instructions that
accompany a “Warning” symbol may result in serious injury or death.
Caution
Handling the product without observing the instructions that
accompany a “Caution” symbol may result in injury or property
damage.
Note
Note
The items under this heading contain important handling instructions
that the user should observe to ensure safe use of the product.
Warning
General
• Do not use the product in explosive or corrosive environments, in the presence of
flammable gases, locations subjected to splashing water, or near combustibles.
Doing so may result in fire or injury.
• Assign qualified personnel the task of installing, wiring, operating/controlling,
inspecting and troubleshooting the product. Failure to do so may result in fire,
injury or equipment damage.
• When the driver’s protection function is triggered, first remove the cause and then
clear the protection function. Continuing the operation without determining the
cause of the problem may cause malfunction of the motor, leading to injury or
damage to equipment.
Installation
• Install the motor (gearhead) and driver in their enclosures in order to prevent
injury.
Connection
• Keep the driver’s power supply input voltage within the specified range to avoid
fire.
• Connect the cables securely according to the wiring example in order to prevent
fire.
• Do not forcibly bend, pull or pinch the cable. Doing so may result in fire.
• For the driver’s power supply use a DC power supply with reinforced insulation
on its primary and secondary sides. Failure to do so may result in electric shock.

2 Safety precautions
−5−
Operation
• Turn off the driver power supply in the event of a power failure, or the motor may
suddenly start when the power is restored and may cause injury or damage to
equipment.
• Do not use it in a vertical applications. When the driver protection function is
triggered, the motor will stop operating. The moving parts fall and may cause
injury or damage to equipment.
Repair, disassembly and modification
• Do not disassemble or modify the motor, gearhead or driver. This may cause
injury. Refer all such internal inspections and repairs to the branch or sales office
from which you purchased the product.
Caution
General
• Do not use the motor, gearhead and driver beyond their specifications, or injury or
damage to equipment may result.
• Do not touch the motor or driver during operation or immediately after stopping.
The surfaces are hot and may cause a burn.
Transportation
• Do not hold the motor (gearhead) output shaft or motor cable. This may cause
injury.
Installation
• Keep the area around the motor and driver free of combustible materials in order
to prevent fire or a burn.
• To prevent the risk of damage to equipment, leave nothing around the motor and
driver that would obstruct ventilation.
• Provide a cover over the rotating parts (output shaft) of the motor (gearhead) to
prevent injury.
Operation
• Use a motor and driver only in the specified combination. An incorrect
combination may cause a fire.
• Provide an emergency-stop device or emergency-stop circuit external to the
equipment so that the entire equipment will operate safely in the event of a system
failure or malfunction. Failure to do so may result in injury.
• Immediately when trouble has occurred, stop running and turn off the driver
power supply. Failure to do so may result in fire, electric shock or injury.
• Provide a cover over the rotating parts (output shaft) of the motor to prevent
injury.
• Release all driver input signals before turning on the power supply to the driver.
Otherwise, the motor may start suddenly and cause injury or damage to
equipment.

2 Safety precautions
−6−
• Before moving the motor directly with the hands (as in the case of manual
positioning), confirm that the driver operation input is “OFF” to prevent injury.
• Do not perform the motor’s starting and stopping operations by turning the power
supply on and off. Perform them by inputting START/STOP and RUN/BRAKE.
This may cause injury or damage to the equipment.
• The motor’s surface temperature may exceed 70 °C, even under
normal operating conditions. If a motor is accessible during
operation, post a warning label shown in the figure in a
conspicuous position to prevent the risk of burns.
Warning label
Disposal
• To dispose of the motor, gearhead and driver disassemble it into parts and
components as much as possible and dispose of individual parts/components as
industrial waste.

3 Precautions for use
−7−
3 Precautions for use
This chapter explains the restrictions and other items you should take heed of when
using the BLH series.
• Do not perform gravitational load operation
With the BLH series, any operation in which the motor output shaft is turned from
the load side (gravitational load operation) will disable the motor speed control. In
addition, a gravitational load operation will cause the driver’s primary inverter
voltage to exceed the allowable value, thereby triggering a protection function and
causing the motor to stop spontaneously. If this happens, there is a possibility that
the load will drop.
• Grease measures
On rare occasions a small amount of grease may leak from the gearhead. If leaked
grease is feared to contaminate the surrounding environment, check for grease
leakage during regular inspections or provide an oil pan or other device to prevent
damage resulting from contamination. Leaking oil is a cause of malfunction in your
equipment or product.
• Apply grease on the output shaft of the hollow shaft flat gearhead
If you are using a gearhead, apply grease (molybdenum disulfide grease, etc.) on the
surface of the load shaft and inner walls of the hollow output shaft to prevent
seizure.
• Conduct the insulation resistance measurement or withstand voltage
test separately on the motor and the driver
Conducting the insulation resistance measurement or withstand voltage test with the
motor and driver connected may result in injury or damage to equipment.
• Noise elimination measures
Provide the following noise elimination measures to prevent a motor or driver
malfunction caused by external noise.
Wiring the motor
To extend the wiring between the motor and driver, use the accessory extension
cable (sold separately).
Wiring the I/O signals cable
• Minimize the wiring length of the I/O signals cable.
• Provide a minimum clearance of 100 mm (4 in.) between the I/O signals cable and
any inductive load such as an electromagnetic relay or any power line (power
supply, motor, etc.). Do not place the I/O signals cable and a power line in the
same duct or pipe or bundle them together.
• For more effective elimination of noise, use a shielded I/O signals cable or attach
ferrite cores if a non-shielded cable is used.

4 Preparation
−8−
4 Preparation
The following describes the items to be confirmed, names and functions of
individual components.
4.1 Checking the product
Open the package and make sure that the following items are supplied.
The supplied items vary depending on the product. If there is any shortage or
damage, contact the sales office where you bought the product.
The unit model of the product you bought should be checked by reference to the
model on the label of the package.
Check the models of the motor, gearhead and driver by reference to the models on
the name plate of each product.
Unit models for motor, gearhead and driver combinations are listed in section 4.2
“Combination tables.”
Geared type, round shaft type and pinion shaft type
• Motor 1 unit (Geared type is motor with gearhead)
• Driver 1unit
• I/O signals cable [300 mm (12 in.)] 1 pc.
• Power supply cable [300 mm (12 in.)] 1 pc.
• Operating manual (This manual) 1 copy
Combination type parallel shaft gearhead
• Motor with gearhead 1 unit
• Parallel key 1 pc.
• Driver 1unit
• I/O signals cable [300 mm (12 in.)] 1 pc.
• Power supply cable [300 mm (12 in.)] 1 pc.
• Hexagonal socket head screw set (four each of screws, washers and nuts) 1 set
• Operating manual (This manual) 1 copy
Combination type hollow shaft flat gearhead
• Motor with gearhead 1 unit
• Parallel key 1 pc.
• Driver 1unit
• I/O signals cable [300 mm (12 in.)] 1 pc.
• Power supply cable [300 mm (12 in.)] 1 pc.
• Hexagonal socket head screw set (four each of screws, washers and nuts) 1 set
• Safety cover 1 pc.
• Safety cover mounting screws (M3) 2 pcs.
• Operating manual (This manual) 1 copy

4 Preparation
−9−
4.2 Combination tables

Geared type
The motor and gearhead are integrated. The combination of motor and gearhead
cannot be changed.
Components model
Unit model Motor model Driver model
BLH015K-BLHM015K-BLHD15K
in the model names indicates a number representing the gear ratio (5, 10, 15, 20,
30, 50 or 100).
 Combination type parallel shaft gearhead
The motor comes preassembled with a parallel shaft gearhead.
Components model
Unit model∗Motor model∗Gearhead model Driver model
BLH230KC-BLHM230KC-GFS GFS2GBLHD30K
BLH450KC-BLHM450KC-GFS GFS4GBLHD50K
BLH5100KC-BLHM5100KC-GFS GFS5GBLHD100K
in the model names indicates a number representing the gear ratio (5, 10, 15, 20,
30, 50,100 or 200).
∗ For the lead wire type, “KC” of the unit model and motor model are replaced by “K”.
 Combination type hollow shaft flat gearhead
The motor comes preassembled with a hollow shaft flat gearhead.
Components model
Unit model∗Motor model∗Gearhead model Driver model
BLH230KC-FR BLHM230KC-GFS GFS2GFR BLHD30K
BLH450KC-FR BLHM450KC-GFS GFS4GFR BLHD50K
BLH5100KC-FR BLHM5100KC-GFS GFS5GFR BLHD100K
in the model names indicates a number representing the gear ratio (5, 10, 15, 20,
30, 50,100 or 200).
∗ For the lead wire type, “KC” of the unit model and motor model are replaced by “K”.

4 Preparation
−10−
 Round shaft type
Components model
Unit model∗Motor model∗Driver model
BLH015K-A BLHM015K-A BLHD15K
BLH230KC-A BLHM230KC-A BLHD30K
BLH450KC-A BLHM450KC-A BLHD50K
BLH5100KC-A BLHM5100KC-A BLHD100K
∗ For the lead wire type, “KC” of the unit model and motor model are replaced by “K” (except
for BLH015 type).
 Pinion shaft type
Components model
Unit model∗Motor model∗Driver model
BLH230KC-GFS BLHM230KC-GFS BLHD30K
BLH450KC-GFS BLHM450KC-GFS BLHD50K
BLH5100KC-GFS BLHM5100KC-GFS BLHD100K
∗ For the lead wire type, “KC” of the unit model and motor model are replaced by “K”.

4 Preparation
−11−
4.3 Names and function of parts
The following describes the names and functions of individual components of the
driver.
Driver model: BLHD15K, BLHD30K, BLHD50K
Motor connector (CN3)
Connect the motor cable.
LED
Lights up when current is applied.
When the protection function has
been activated, the cause of the
activated protection function is
indicated by the number of flashes.
Power supply connector (CN1)
Connect the power supply cable.
Mounting holes (2 positions)
Installation notch
(2 positions)
I/O signals connector (CN2)
Connect the I/O cable to link with
an external control device such
as a programmable controller.
Internal speed potentiometer
Used to set the motor speed.
The speed is set to 0 r/min
at time of shipment.
Acceleration/deceleration time potentiometer
Used to set the acceleration time when the motor is
started, as well as the deceleration time when it is
stopped. The minimum time is set at time of shipment.
Heat sink
Driver model: BLHD100K
Installation notch
(2 positions)
Mounting holes
(2 positions)
Motor connector for power (CN4)
Connect the motor cable.
Motor connector for signal (CN3)
Connect the motor cable.
Internal speed potentiometer
Used to set the motor speed.
The speed is set to 0 r/min
at time of shipment.
I/O signals connector (CN2)
Connect the I/O cable to link with
an external control device such as
a programmable controller.
LED
Lights up when current is applied.
When the protection function has
been activated, the cause of the
activated protection function is
indicated by the number of flashes.
Power supply connector (CN1)
Connect the power supply cable.
Acceleration/deceleration time potentiometer
Used to set the acceleration time when
the motor is started, as well as the
deceleration time when it is stopped.
The minimum time is set at time of shipment.
Heat sink
➙P.29
➙P.29
➙P.37
➙P.30
➙P.41
➙P.44
➙P.29
➙P.37
➙P.30
➙P.44
➙P.29
➙P.41
➙P.29

5 Installation
−12−
5 Installation
This chapter explains the installation location and installation methods of the motor
and driver, as well as how to install a load. Read the applicable sections carefully to
install each item correctly.
Geared type
Combination type parallel shaft gearhead P.13, 19
Combination type hollow shaft flat gearhead P.15, 22
Round shaft type P.18, 19
Pinion shaft type Parallel shaft gearhead: P.13, 19
Hollow shaft flat gearhead: P.15, 22
5.1 Installation location
The motor and driver are designed and manufactured for use as internal components
of equipment.
Install the motor and driver in a well-ventilated place where they can be inspected
easily and the following conditions are satisfied:
• Inside an enclosure that is installed indoors (provide vent holes)
• Operating ambient temperature: 0 to +50 °C (+32 to +122 °F) (non-freezing)
• Operating ambient humidity: 85% or less (non-condensing)
• Area that is free of explosive atmosphere or toxic gas (such as sulfuric gas) or
liquid
• Area not exposed to direct sun
• Area free of excessive amount of dust, iron particles or the like
• Area not subject to splashing water (rains, water droplets), oil (oil droplets) or
other liquids
• Area free of excessive salt
• Area not subject to continuous vibration or excessive shocks
• Area free of excessive electromagnetic noise (from welders, power machinery,
etc.)
• Area free of radioactive materials, magnetic fields or vacuum
Install the motor to a flat mounting plate offering excellent vibration resistance and
high heat conductivity.

5 Installation
−13−
5.2 Installing the geared type, combination type
parallel shaft gearhead
1. Open mounting holes in the mounting plate.
[Unit: mm (in.)]
Unit
model ØA ØB C ØD
BLH015 43.8
(1.72)
16
(0.63)
8
(0.31)
4.5
(0.177)
BLH230 70
(2.76)
24
(0.94)
10
(0.39)
4.5
(0.177)
BLH450 94
(3.70)
34
(1.34)
13
(0.51)
6.5
(0.256)
ØB
C
4×ØD
ØA
BLH5100 104
(4.09)
40
(1.57)
18
(0.71)
8.5
(0.335)
ØB indicates the external dimension of the product.
Provide a hole with a diameter of “ØB +1 mm or more.”
Maximum applicable plate thickness
Unit model Maximum applicable plate thickness
BLH230 5 mm (0.20 in.)
BLH450 8 mm (0.31 in.)
BLH5100 12 mm (0.47 in.)
∗ The figures in the table apply when the supplied hexagonal socket head screw is used.
(BLH015 is not attached)
2. Install the supplied hexagonal socket head screw in the four mounting
holes you just opened and tighten the nuts until no gaps remain between
the motor and mounting plate.
• Combination type parallel shaft gearhead
Unit model
Nominal
thread
size
Tightening
torque
BLH230 M4 1.8 N·m
(15.9 lb-in)
BLH450 M6 6.4 N·m
(56 lb-in)
BLH5100 M8 15.5 N·m
(137 lb-in)
Hexagonal socket
head screws

5 Installation
−14−
• Geared type
To install the motor, use the four installation
holes and mount the motor with four bolts (not
provided) so that there is no gap with the
mounting plate.
Effective depth of bolt: 8 mm (0.31 in.)
Unit model Nominal thread size Tightening torque
BLH015 M4 1.8 N·m (15.9 lb-in)
Note Fit the boss on the gearhead mounting surface into a counterbore or through
pilot-receiving hole.
 Changing the motor cable’s routing direction
The gearhead can be removed and the motor cable position changed to a desired 90°
direction. (BLH015 is removed)
1. Remove the hexagonal socket head screws (2 pcs.) assembling the
motor and gearhead and detach the motor from the gearhead.
Hexagonal socket head
screws
2. Using the pilot sections of the motor and gearhead as guides, install the
motor to the gearhead and tighten the hexagonal socket head screws.
At this time, the motor cable position can be changed to a desired 90° direction.
When installing the gearhead, slowly rotate it clockwise/counterclockwise to
prevent the pinion of the motor output shaft from contacting the side panel or
gear of the gearhead.
Also, confirm that no gaps remain between the motor flange surface and the end
face of the gearhead’s pilot section.

5 Installation
−15−
Unit
model
Nominal
thread size
Tightening
torque
BLH230
BLH450 M2.6 0.4 N·m
(3.5 lb-in)
BLH5100 M3 0.6 N·m
(5.3 lb-in)
Pilot
Change the cable
position to a desired
90° direction.
Note • Do not forcibly assemble the motor and gearhead. Also, do not let metal
objects or other foreign matters enter the gearhead. The pinion or gear of
the motor output shaft may be damaged, resulting in noise or shorter service
life.
• Do not allow dust to attach to the pilot sections of the motor and gearhead.
Also, assemble the motor and gearhead carefully by not pinching the O-ring
at the motor’s pilot section. If the O-ring is crushed or severed, grease may
leak from the gearhead.
• The hexagonal socket head screws (2 pcs.) assembling the motor and
gearhead are affixing the motor and gearhead only temporarily. When
installing the gearhead, be sure to use the supplied four hexagonal socket
head screws.
5.3 Installing the combination type hollow shaft flat
gearhead
A gearhead can be installed by using either its front or rear side as the mounting
surface. Install the supplied hexagonal socket head screw in the four mounting holes
you opened and tighten the nuts until no gaps remain between the motor and
mounting plate. Also, attach the supplied safety cover to the hollow output shaft on
the end opposite from the one where the load shaft is installed.
Front Mounting plate
Gearhead
Motor
Rear

5 Installation
−16−
• Using the front side as the mounting surface
When the gearhead is installed by using its front side as the mounting surface, use
the boss of the output shaft to align the center.
Safety cover Safety cover
mounting screws (M3)
Hexagonal socket head screws
Mounting plate
Washers
Spring washers
Hexagonal nuts
ØB
· Mounting hole dimensions
4×ØC
ØA
• Using the rear side as the mounting surface
Safety cover
Safety cover
mounting screws (M3)
Hexagonal socket head screws
Washers Hexagonal
nuts
Mounting plate
Spring washers
· Mounting hole dimensions
E4×ØC
ØD or more
ØA
[Unit: mm (in.)]
Unit
model
Nominal
thread
size
Tightening
torque ØA ØB ØC ØD E
BLH230 M5 3.8 N·m
(33 lb-in)
70
(2.76)
34
+0.039
0
(1.34
+0.0015
0
)
5.5
(0.217)
25
(0.98)
29
(1.14)
BLH450 M6 6.4 N·m
(56 lb-in)
94
(3.70)
38
+0.039
0
(1.50
+0.0015
0
)
6.5
(0.256)
30
(1.18)
39
(1.54)
BLH5100 M8 15.5 N·m
(137 lb-in)
104
(4.09)
50
+0.039
0
(1.97
+0.0015
0
)
8.5
(0.335)
35
(1.38)
44
(1.73)
Note When installing the gearhead by using its rear side as the mounting surface,
prevent contact between the mounting plate and motor by keeping dimension
E below the specified value.

5 Installation
−17−
Maximum applicable plate thickness
Unit model Maximum applicable
plate thickness
BLH230 5 mm (0.20 in.)
BLH450 8 mm (0.31 in.)
BLH5100 12 mm (0.47 in.)
∗ The figures in the table apply when the supplied hexagonal socket head screw is used.
 Changing the motor cable’s routing direction
The gearhead can be removed and the motor cable position changed to one of three
90° directions. Note that the motor cable cannot be positioned in the direction where
the cable faces the gearhead output shaft.
1. Remove the hexagonal socket head screws (4 pcs.) attaching the
gearhead and motor and detach the motor from the gearhead.
Hexagonal socket head
screws
2. Using the pilot sections of the motor and gearhead as guides, install the
motor to the gearhead and tighten the hexagonal socket head screws.
At this time, the motor cable position can be changed to one of three 90°
directions.
When installing the gearhead, slowly rotate it clockwise/counterclockwise to
prevent the pinion of the motor output shaft from contacting the side panel or
gear of the gearhead.
Also, confirm that no gaps remain between the motor flange surface and the end
face of the gearhead’s pilot section.
Unit model Nominal
thread size
Tightening
torque
BLH230 M4 1.8 N·m
(15.9 lb-in)
BLH450 M6 6.4 N·m
(56 lb-in)
BLH5100 M8 15.5 N·m
(137 lb-in)
Change the cable
position to a desired
90° direction.

5 Installation
−18−
Note • Do not forcibly assemble the motor and gearhead. Also, do not let metal
objects or other foreign matters enter the gearhead. The pinion or gear of
the motor output shaft may be damaged, resulting in noise or shorter service
life.
• Do not allow dust to attach to the pilot sections of the motor and gearhead.
Also, assemble the motor and gearhead carefully by not pinching the O-ring
at the motor’s pilot section. If the O-ring is crushed or severed, grease may
leak from the gearhead.
5.4 Installing the round shaft type
Install the motor to a mounting plate of the following size or larger, so that the motor
case temperature will not exceed 90 °C (194 °F) (The BLH015 has no limitation on
the mounting plate size.).
Unit model Size of mounting plate Thickness • Material
BLH230 115×115 mm (4.53×4.53 in.)
BLH450 135×135 mm (5.31×5.31 in.)
BLH5100 200×200 mm (7.87×7.87 in.)
Thickness: 5 mm (0.20 in.)
Material: Aluminum
1. Open mounting holes in the mounting plate [Unit: mm (in.)].
Unit model ØA B ØC ØD
BLH015 48
(1.89)
33.94
(1.34)
37.6
+0.025
0
(1.4803
+0.0010
0
)
3.5
(0.138)
BLH230 70
(2.76)
49.5
(1.95)
54
+0.030
0
(2.1260
+0.0012
0
)
4.5
(0.177)
BLH450 94
(3.70)
66.47
(2.62)
73
+0.030
0
(2.8740
+0.0012
0
)
6.5
(0.256)
BLH5100 104
(4.09)
73.54
(2.90)
83
+0.035
0
(3.2677
+0.0014
0
)
8.5
(0.335)
ØC
B
B
ØA
ØD
ØC indicates the pilot diameter on the flange.
2. Install four bolts (not supplied) in the four mounting holes you just opened
and tighten the nuts until no gaps remain between the motor and
mounting plate.
Unit model Nominal
thread size Tightening torque
BLH015 M3 1 N·m (8.8 lb-in)
BLH230 M4 1.8 N·m (15.9 lb-in)
BLH450 M6 6.4 N·m (56 lb-in)
BLH5100 M8 15.5 N·m (137 lb-in)
Bolts
Note Fit the boss on the motor mounting surface into a counterbore or through
pilot-receiving hole.

5 Installation
−19−
5.5 Installing the pinion shaft type
A pinion shaft motor is used with a parallel shaft gearhead or hollow shaft flat
gearhead assembled to it.
Installing a parallel shaft gearhead: P.13, 19
Installing a hollow shaft flat gearhead: P.15, 22
5.6 Installing a load on the geared type, combination
type parallel shaft gearhead and round shaft type
When installing a load on the motor (gearhead), align the center of the motor output
shaft (gearhead output shaft) with the center of the load shaft.
Note • When coupling the motor (gearhead) with a load, pay attention to centering,
belt tension, parallelism of pulleys, etc. Also, securely affix the tightening
screws of the coupling or pulleys. Also, securely affix the tightening screws
of the coupling or pulleys.
• When installing a load, do not damage the motor output shaft (gearhead
output shaft) or bearing. Forcing in the load by driving it with a hammer, etc.,
may break the bearing. Do not apply any excessive force to the output shaft.
• Do not modify or machine the motor (gearhead) output shaft. The bearing
may be damaged or motor (gearhead) may break.
 Output shaft shape
Combination type parallel shaft gearhead
A key groove is provided on the output shaft of gearhead. Form a key groove on the
load side and affix the load using the supplied parallel key.
Unit model Parallel key dimension
BLH230 4 mm (0.1575 in.)
BLH450 5 mm (0.1969 in.)
BLH5100 6 mm (0.2362 in.)
Geared type, round shaft type
A flat section is provided on the motor output shaft of each geared type, round shaft
type. Apply a double-point screw, etc., at the flat section to securely affix the load
and prevent it from spinning.

5 Installation
−20−
 How to install a load
• Using a coupling
Align the centerline of the motor (gearhead) output shaft with the centerline of the
load shaft.
• Using a belt
Adjust the motor (gearhead) output shaft to lie parallel with the load shaft and form
right angles between the output shaft/load shaft and the line connecting the centers
of both pulleys.
• Using a gear
Adjust the motor (gearhead) output shaft to lie parallel with the gear shaft and allow
the output shaft to mesh correctly with the centers of the gear teeth.
• When using the output axis tip screw hole of a gearhead
Use a screw hole [M6, effective depth 12 mm
(0.47 in.)] provided at the tip of the output
shaft of GFS5Gas an auxiliary means for
preventing the transfer mechanism from
disengaging.
Fixed screw
Screw
Spacer
Transmission parts
The example of
output axis tip screw hole use