Oriental motor BLH Series User manual

HP-5113
Brushless Motor
BLH Series
RS-485 communication type
USER 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
2
1 Introduction .........................................................4
2 Safety precautions .............................................5
3 Precautions for use ............................................6
4 Preparation...........................................................7
4.1 Checking the product........................................... 7
4.2 How to identify the product model................. 7
4.3 Information about nameplate........................... 7
4.4 Products possible to combine........................... 7
4.5 Names and functions of parts............................ 8
5 Installation ............................................................9
5.1 Installation location............................................... 9
5.2 Installing the driver................................................ 9
6 Connection........................................................ 10
6.1 Connecting the motor and driver (CN3)......10
6.2 Connecting the power supply (CN1).............10
6.3 Connecting the I/O signals (CN2) ...................11
6.4 Driver I/O circuit....................................................12
6.5 Connecting external analog setting
devices......................................................................13
6.6 Grounding...............................................................14
6.7 Connecting the USB cable (CN4) ....................14
6.8 Connecting the RS-485 communication
cable (CN5, CN6) ...................................................15
6.9 Connection diagram ...........................................16
6.10 Noise elimination measures.............................17
6.11 Conformity to the EMC Directive....................17
7 Operation data ................................................. 19
7.1 Setting the operation data................................19
7.2 Setting the rotation speed................................20
7.3 Setting the acceleration time and
deceleration time .................................................22
7.4 Setting the torque limiting value ...................22
7.5 Example of operation pattern..........................25
7.6 Rotation direction of the motor output
shaft...........................................................................25
7.7 Multi-motor control.............................................26
8 Guidance ............................................................ 27
9 Parameter........................................................... 30
9.1 Parameter list .........................................................31
9.2 Operation data extension setting ..................35
9.3 Operation and I/O action...................................39
9.4 Alarm and information settings......................41
9.5 Monitor setting .....................................................44
9.6 Direct-IN function selection, Direct-OUT
function selection ................................................45
9.7 Remote-IN function selection,
Remote-OUT function selection.....................45
9.8 Communication and I/F function ...................46
9.9 I/O signals assignment list.................................53
10 I/O signals........................................................... 54
10.1 Direct I/O .................................................................54
10.2 Remote I/O..............................................................56
10.3 Signals list................................................................58
10.4 Input signals...........................................................60
10.5 Output signals .......................................................63
10.6 General signals ......................................................66
11 Modbus RTU control
(RS-485 communication).............................. 67
11.1 Modbus RTU specications ..............................67
11.2 Message structure................................................70
11.3 Function code........................................................74
11.4 Flow of setting required for Modbus
communication.....................................................80
11.5 Setting of RS-485 communication .................81
11.6 Data setting method...........................................82
11.7 Group send .............................................................87
11.8 Setting example....................................................89
11.9 Timing charts .........................................................93
11.10 Communication monitor...................................94
11.11 Detection of communication errors..............95

3
12 Addresses and codes list............................... 97
12.1 Timing for parameter to update .....................97
12.2 I/O commands.......................................................98
12.3 Group command ..................................................98
12.4 Protect release commands ...............................99
12.5 Maintenance commands...................................99
12.6 Monitor commands.......................................... 100
12.7 Operation data commands............................ 109
12.8 Parameter commands ..................................... 111
12.9 I/O signals assignment list.............................. 119
13 How to use MEXE02...................................121
13.1 Starting
MEXE02.............................................. 121
13.2 Setting the operation data............................. 122
13.3 Setting the parameters ................................... 123
13.4 Monitor ................................................................. 124
13.5 Test operation..................................................... 131
14 Maintenance and inspection ....................134
14.1 Inspection ............................................................ 134
14.2 Warranty ............................................................... 134
14.3 Disposal................................................................. 134
15 Troubleshooting ............................................135
16 Alarms................................................................137
16.1 Alarm reset........................................................... 137
16.2 Alarm history....................................................... 138
16.3 Generation condition of alarms ................... 139
16.4 Alarm list............................................................... 139
17 Information......................................................141
17.1 Information history........................................... 141
17.2 Information lists................................................. 142
17.3 Information codes............................................. 144
18 Specications..................................................145
18.1 Specications...................................................... 145
18.2 General specications...................................... 145
18.3 Dimensions.......................................................... 146
19 Regulations and standards ........................147
19.1 UL Standards, CSA Standards........................ 147
19.2 EU Directives ....................................................... 147
19.3 Republic of Korea, Radio Waves Act ........... 147
19.4 RoHS Directive.................................................... 147

4
Introduction
1 Introduction
 Before using the product
Only qualied personnel of electrical and mechanical engineering should work with the product.
Use the product correctly after thoroughly reading the section "2 Safety precautions." In addition, be sure to observe the
contents described in warning, caution, and note in this manual.
The product described in this manual has been designed and manufactured to be incorporated in general industrial
equipment. Do not use for any other purpose. For the power supply, use a DC power supply with reinforced insulation
on its primary and secondary sides. Oriental Motor Co., Ltd. is not responsible for any damage caused through failure to
observe this warning.
 Operating manuals for the product
Operating manuals for the BLH Series RS-485 communication type are listed below.
For operating manuals not included with the product, contact your nearest Oriental Motor sales oce or download
from Oriental Motor Website Download Page.
Operating manual name Manual number Included or not
included with product
Motor BLHM Motor OPERATING MANUAL HM-5238 Included
BLHM Electromagnetic Brake Motor OPERATING MANUAL HM-5258 Included
Driver BLH Series RS-485 communication type OPERATING MANUAL HP-5111 Included
BLH Series RS-485 communication type USER MANUAL HP-5113 Not included

5
Safety precautions
2 Safety precautions
The precautions described below are intended to ensure the safe and correct use of the product, and to prevent the
user and other personnel from exposure to the risk of injury. 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 The items under this heading contain important handling instructions that the user should observe to
ensure safe use of the product.
Explanation of graphic symbols Indicates "prohibited" actions that must not
be performed.
Indicates "compulsory" actions that must be
performed.
WARNING
•Do not use the product in explosive or corrosive environments, in the presence of ammable gases, locations subjected to splashing
water, or near combustibles. Doing so may result in re or injury.
•Do not forcibly bend, pull, or pinch the cable. Doing so may result in re.
•Do not use in vertical drive such as elevating equipment. When the driver protective function is activated, the motor will stop
operating. The moving part may fall, leading to injury or damage to equipment.
•Do not disassemble or modify the motor, gearhead or driver. Doing so may cause injury. Refer all such internal inspections and repairs
to the branch or sales oce from which you purchased the product.
•Only qualied and educated personnel should be allowed to perform installation, connection, operation and inspection/
troubleshooting of the product. Handling by unqualied and uneducated personnel may result in re, injury or damage to
equipment.
•If the driver protective function was activated, remove the cause before canceling the alarm. Continuing the operation without
removing the cause of the problem may cause malfunction of the motor, leading to injury or damage to equipment.
•Install the motor, gearhead and driver in an enclosure. Failure to do so may result in injury.
•Always keep the power supply voltage of the driver within the specied range. Failure to do so may result in re.
•Connect the cables securely according to the wiring example. Failure to do so may result in re.
•For the driver 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.
•If the motor is operated by turning on and o the power supply, turn o the driver power in the event of a power failure. Otherwise,
the motor may suddenly start when the power is restored, causing injury or damage to equipment.
CAUTION
•Do not use the motor, gearhead, and driver beyond the specications. Doing so may result in injury or damage to equipment.
•Do not touch the motor and driver during operation or immediately after stopping. The surface is hot, and this may cause a skin
burn(s).
•Do not lift up the motor by holding the output shaft of the motor or the gearhead, or the motor cable. Doing so may cause the
product to fall, leading to injury.
•Keep the area around the motor and driver free of combustible materials. Failure to do so may result in re or a skin burn(s).
•Do not leave anything around the motor and driver that would obstruct ventilation. Doing so may result in damage to equipment.
•Do not shut o the negative side of the power supply. Also, make sure that the wiring for the power supply does not disconnect. This
may result in damage to equipment.
•Do not touch the rotating part (output shaft) while operating the motor. Doing so may cause injury.
•Pay enough attention to safe operation when starting and stopping the motor by switching ON-OFF of the power supply. Failure to
do so may result in injury or damage to equipment.
•Provide a cover over the rotating part (output shaft) of the motor and gearhead. Failure to do so may result in injury.
•Use a motor and driver only in the specied combination. An incorrect combination may cause a re.
•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 operation and turn o the driver power. Failure to do so may result in re, electrical
shock or injury.
•The motor surface temperature may exceed 70 °C (158 °F) even under normal operating conditions. If the operator is
allowed to approach the motor in operation, attach a warning label in a conspicuous position as shown in the gure.
Failure to do so may result in a skin burn(s). Warning label

6
Precautions for use
3 Precautions for use
This chapter covers limitations and requirements the user should consider when using the product.
Be sure to match the output power of the driver with that of the motor when using.
zNotes for continuous regeneration operation
When regeneration operation is continuously performed, check the following conditions are satised before use.
•Set the value of the "Deceleration mode selection" parameter to "Deceleration stop 3."
•Use a power supply that can suciently allow the regenerative power.
Note Do not perform gravitational operation (vertical drive) because a load may fall.
zDo not conduct the insulation resistance measurement or the dielectric strength test with the motor and
driver connected.
Conducting the insulation resistance measurement or the dielectric strength test with the motor and driver connected
may result in damage to the product.
zNote on power ON/OFF using a mechanical contact
When turning on or o the power supply using a mechanical contact (breaker, electromagnetic switch, relay, etc.), do so
only the positive side (+) of the power supply using the mechanical contact.
Turning on or o the positive side (+) and the negative side (−) of the power supply simultaneously using a mechanical
contact may cause damage to the control circuit or peripheral equipment.
Refer to p.11 for details.
zNote on connecting a power supply whose positive terminal is grounded
The driver’s USB connector is not electrically insulated. When grounding the positive terminal of the power supply, do
not connect any equipment (PC, etc.) whose negative terminal is grounded. Doing so may cause the driver and these
equipment to short, damaging both.
zNoise elimination measures
Refer to p.17 for the noise elimination measures.
zNotes when saving the data to the non-volatile memory
Do not turn o the power supply while writing the data to the non-volatile memory, and also do not turn o for 5
seconds after the completion of writing the data. Doing so may abort writing the data and cause an EEPROM error alarm
to generate.
The non-volatile memory can be rewritten approximately 100,000 times.
zGrease measures
On rare occasions, grease may ooze out from the gearhead. If there is concern over possible environmental
contamination resulting from the leakage of grease, check for grease stains during regular inspections. Alternatively,
install an oil pan or other device to prevent damage resulting from contamination. Grease leakage may lead to problems
in the user’s equipment or products.
zApply grease to the hollow output shaft of a hollow shaft at gearhead.
Apply grease (molybdenum disulde grease, etc.) on the surface of the load shaft and the inner walls of the hollow
output shaft to prevent seizure.
zSliding noise of electromagnetic brake
Sliding noise of the brake disk for the electromagnetic brake motor may be generated during operation.
It is no functional problem.

7
Preparation
4 Preparation
This chapter explains the items you should check, as well as the name and function of each part.
4.1 Checking the product
Verify that the items listed below are included.
Report any missing or damaged items to the branch or sales oce from which you purchased the product.
Refer to "4.4 Products possible to combine" for combinations of the driver and motor.
□Driver .................................................1 unit □OPERATING MANUAL................... 1 copy
4.2 How to identify the product model
BLH2D 30 - K R
①②③ ④
①Driver type BLH2D: BLH Series driver
②Output power 15: 15 W 30: 30 W 50: 50 W
③Power supply voltage K: 24 VDC
④R: RS-485 communication type D: Digital setting type Blank: Analog setting type
4.3 Information about nameplate
Serial number Manufacturing date
Driver model
Driver specications
4.4 Products possible to combine
Products with which the drivers can be combined are listed below.
Verify the driver model and the motor model against the model name described on the nameplate of the product.
The box (o) in the motor model name indicates a code or a number representing the gear ratio, the shaft type, or the
gearhead type.
For details about the motor, refer to the operating manual included with the motor.
Output power Motor model Driver model Cable set model
15 W BLHM015K-oo BLH2D15-KR
LHS003CC
or
LHS010CC
30 W BLHM230KC-oo*
BLHM230KCM-oo BLH2D30-KR
50 W BLHM450KC-oo*
BLHM450KCM-oo BLH2D50-KR
* For the lead wire type, "KC" of the motor model are replaced by "K".
zCable set (Each cable can be purchased separately.)
•I/O signal cable ........................ 1 pc •Power supply cable ................ 1 pc
Length Cable set model I/O signal cable Power supply cable
300 mm (11.8 in.) LHS003CC LH003C3 LH003C1
1000 mm (39.4 in.) LHS010CC LH010C3 LH010C1

8
Preparation
4.5 Names and functions of parts
This section explains the name and function for each part of the driver.
CN1 CN2
+
-
CN3
CN6 CN5
C-DAT
C-ERR
Motor connector (CN3)
LED (PWR/ALM)
Power supply connector (CN1)
I/O signal connector (CN2)
RS-485 communication connector (CN5)
RS-485 communication connector (CN6)
USB connector (CN4)
Termination resistor switch (TERM.)
Address number setting switch (ID)
LED (C-DAT/C-ERR)
CN4
PWR/ALM
IDTERM.
NO
Name Sign Description
Power supply connector CN1 Connects the power supply cable.
I/O signal connector CN2 Connects the I/O signal cable to connect with an external control device.
Motor connector CN3 Connects the motor cable.
USB connector CN4 Connects a PC in which the MEXE02 has been installed.
RS-485 communication connector CN5 Connects a communication cable to connect with an external control device.
Or connect to a dierent driver with a daisy chain.
CN6
LED
PWR/ALM
This LED is lit in green while the power is supplied.
If an alarm is generated, this LED will blink in red.
If information is generated, it will blink in orange.
C-DAT
C-ERR
This LED is lit in green when the driver communicates with the master station
properly via RS-485 communication.
This LED is lit in red when an error occurs in communication with the master station
via RS-485 communication.
Address number setting switch ID Sets the address number when used via RS-485 communication.
Factory setting: 1 (0 to F)
Termination resistor switch TERM. Sets the termination resistor (120 Ω) of RS-485 communication.
Factory setting: OFF (OFF: Disabled, ON: Enabled)

9
Installation
5 Installation
5.1 Installation location
The driver is designed and manufactured to be incorporated in equipment.
Install it in a well-ventilated location that provides easy access for inspection. The location must also satisfy the following
conditions:
•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 free of excessive salt
•Area not subject to splashing water (rain, water droplets), oil (oil droplets) or other liquids
•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 elds or vacuum
•Altitude Up to 1000 m (3300 ft.) above sea level
5.2 Installing the driver
 Installation direction
The driver is designed on the basis of heat radiation by air convection and heat conduction to an enclosure.
When installing the driver in an enclosure, be sure to use the mounting holes on the driver, and install it in a vertical
direction or horizontal direction.
zVertical installation zHorizontal installation
Horizontal direction:
50 mm (1.97 in.) or more
Vertical direc
tion:
20 mm (0.79 in.)
or more
Vertical direc
tion:
50 mm (1.97 in.)
or more
Horizontal direction:
20 mm (0.79 in.) or more
•Drivers can be installed as shown
in the gure below.
When using the USB cable for
communication, install them with
taking the cable outlet position
into account.
Both the vertical installation and
the horizontal installation are
available.
 Installation method
Install the driver onto an appropriate at metal plate having excellent vibration resistance and heat conductivity.
Using the mounting holes or notches of the driver, secure it with two screws (M3: not included) so that there is no gap
between the driver and metal plate.
Note
•Do not install any equipment that generates a large amount of heat or noise near the driver.
•If the ambient temperature of the driver exceeds the upper limit of the operating ambient temperature, reconsider
the ventilation condition or forcibly cool the area around the driver using a fan in order to keep within the operating
ambient temperature.

10
Connection
6 Connection
This chapter explains how to connect the driver with the motor, power supply, and I/O signals.
6.1 Connecting the motor and driver (CN3)
Insert the motor cable connector into the motor connector (CN3) on the driver.
When extending the motor cable, use a connection cable (sold separately).
The maximum extension distance including the cable length of the motor itself should be 2 m (6.6 ft.).
Note
•Firmly insert the connector in position. Insecure connector connection may cause malfunction or damage to the
motor or driver.
•Be sure to insert and pull out the connector while holding the connectors part. Do not apply any force in a direction
other than the direction of inserting and pulling out the connector. Applying improper force may cause damage to
the connector and driver.
CN3 pin assignment
Pin No. Lead wire color*Lead wire size Viewed from the direction of an
arrow in the right gure
1
2
3
4
5
6
7
8
•Housing 43645-0800 (molex)
•Terminal AWG22, 24: 43030-0001 (molex)
AWG26: 43030-0004 (molex)
CN1
+
-
CN3
1 Gray (Black)
AWG222 Purple
3 Blue
4 Yellow
AWG26
5 Green
6 Orange
7 Red
8 Brown (White)
* The color in parentheses ( ) indicates
the 15 W type.
For lead wire type, all lead wire sizes are AWG22 (15W: AWG24).
6.2 Connecting the power supply (CN1)
Insert the power supply cable connector into the power supply connector (CN1) on the driver.
Lead wire size: AWG22 (0.3 mm2)
Note
•When connecting, pay attention to the polarity of the power supply. Connection with incorrect polarity may cause
damage to the driver.
•Do not wire the power supply cable of the driver in the same cable duct with other power lines or motor cables.
•When turning on the power again or inserting/pulling out the motor cable connector, turn o the power and wait
for at least 5 seconds before doing so.
CN1 pin assignment
Pin No. Lead wire color Lead wire size Viewed from the direction of an
arrow in the right gure
1
2
Housing: 43645-0200 (molex)
Terminal: 43030-0001 (molex)
CN1
+
-
24 VDC±10%
+
−
1 Red AWG22
2 Black

11
Connection
6.3 Connecting the I/O signals (CN2)
Insert the connector of the I/O signal cable into the I/O signal connector (CN2) on the driver.
Lead wire size: AWG26 (0.14 mm2)
CN2 pin assignment
Viewed from the direction of an arrow in the right gure
CN2 CN6
/
ALM
21
43
65
87
109
1211
Housing: PHDR-12VS (JST)
Terminal: SPHD-001T-P0.5 (JST)
Pin No. Lead wire
color
Terminal
name
Initial assignment
signal*1 Description
12 – – – Not connected.
11 Black D-IN0 START/STOP These signals are used to operate the motor.
The motor rotates according to the acceleration time when both the START/
STOP input and RUN/BRAKE input are turned ON. If the START/STOP input is
turned OFF, the motor stops according to the deceleration time. If the RUN/
BRAKE input is turned OFF, the motor stops instantaneously.
10 White D-IN1 RUN/BRAKE
9Gray D-IN2 FWD/REV This signal is used to change the motor rotation direction.
The motor rotates in the forward direction when the signal is turned ON. *2
8 Light blue D-IN3 M0 This signal is used to select the operation data number.
7 Purple D-IN4 ALM-RST This signal is used to reset the alarm.
(The alarm will be reset at the ON edge of the input.)
6 Blue VH
External analog
setting device*3
These signals are used when the rotation speed is externally set using an
external analog setting device (external potentiometer or external DC voltage).
5 Green VM
4 Yellow VL
3 Orange GND GND I/O signals common
2 Red D-OUT0 SPEED-OUT 30 pulses are output while the motor output shaft makes one revolution.
1 Brown D-OUT1 ALM-B This is a signal to output an alarm status.
It is turned OFF when an alarm is generated. (Normally closed)
*1 These signals are assigned at the time of shipment. Functions for the pin Nos. 1, 2, and 7 to 11 can be changed using the
MEXE02 or RS-485 communication.
*2 The rotation direction of the output shaft varies depending on the gear ratio of the gearhead.
The rotation direction can be changed by setting of the "Motor rotation direction" parameter.
*3 If the "External setting method" parameter is changed, the rotation speed and torque limiting value can be set with the
PWM signal input.
Note on power ON/OFF using a mechanical contact
•When turning on or o the power supply using a mechanical
contact (breaker, electromagnetic switch, relay, etc.), do so only
the positive side (+) of the power supply using the mechanical
contact.
CN1
+
-
+
‑
DC power supply
Do not turn on or o the positive side (+) and the negative side (−) of the power supply simultaneously or
shut o only the negative side (−) of the power supply.
The main circuit and the control circuit in the driver are connected to the same ground. So the input current
of the main circuit ows round into the control circuit when the power supply is turned on or o, causing
damage to the control circuit or peripheral equipment.

12
Connection
6.4 Driver I/O circuit
 Input signals circuit
Input signals of the driver are C-MOS inputs.
The signal state represents "ON: 0 to 0.5 V (L level)" and
"OFF: 4 to 5 V (H level)."
R
+5 V
10 kΩ
Driver internal circuit
0 V
Input signal
GND
C-MOS
C
zChanging the logic level setting of input signals
The logic level setting for input terminals D-IN0 to D-IN4 can be changed using the MEXE02 or RS-485 communication.
Refer to p.55 for details.
 Output signals circuit
Output signals of the driver are transistor open-collector
outputs. The signal state represents a state of "ON:
Carrying current" or "OFF: Not carrying current" for the
internal transistor rather than the voltage level of the
signal.
ON voltage: 0.5 VDC maximum
External power supply: 4.5 to 26.4 VDC, 10 mA or less
Driver internal circuit
0
V0
V
Output signal
GND
4.5 to 26.4 VDC
R∗
* Recommended resistance value when a current limiting
resistor R is connected:
For 24 VDC: 2.7 kΩto 4.7 kΩ(1 W)
For 5 VDC: 560 Ωto 820 Ω(0.25 W)
zChanging the logic level setting of output signals
The logic level setting for output terminals D-OUT0 and D-OUT1 can be changed using the MEXE02 or RS-485
communication.
However, if the SPEED-OUT output is assigned, it cannot be changed.
Refer to p.55 for details.
Note
•Be sure to suppress a current owing to the output circuit to 10 mA or less.
Connect a current limiting resistor R externally if the current exceeds this specied value.
If the driver is used without connecting a current-limiting resistor, it will be damaged.
•When a relay (inductive load) is connected, provide a control measure for
the y-back voltage against the relay by connecting a diode. Or use a relay
with built-in ywheel diode.
Output signal
Inductive load
Fly
wheel diode
R
 Timing chart when power is input
Signal is output
Main power supply ON
OFF
ON
OFF
Output signal
1.0 s or less
1.0 s or more
Input enabled
ON
OFF
Input signal

13
Connection
6.5 Connecting external analog setting devices
Using an external potentiometer (sold separately), external DC voltage, or PWM signal input, the rotation speed or the
torque limiting value can be set.
 Using an external potentiometer
Connect to the pin Nos. 4 to 6 of the CN2.
External potentiometer
PAVR2-20K
(sold separately)
21 3VH
VM
VL
I/O signal connecto
r
(CN2)
0 to 20 kΩ
Blue
Green
Yellow
6
5
4
When the PAVR2-20K is used, use the ferrule (rod terminal).
Manufacturer: PHOENIX CONTACT GmbH & Co. KG
Model: AI 0,14-8 [AWG26 (0.14mm2)]
Note When a shielded cable is used for connection with the external
potentiometer, connect shields to VL of the pin No.4 from near the
I/O signal connector (CN2).
 Using external DC voltage
For external DC voltage, use a DC power supply (0 to 5 VDC) with
reinforced insulation on its primary and secondary sides, and
connect to the pin Nos. 4 and 5 of the CN2.
The input impedance between the VM input and the VL input is
approximately 47 kΩ.
The VL input is connected to GND inside the driver.
External DC power supply
0 to 5 VDC
1 mA or more
VM
VL
Green
Yellow
I/O signal connector
(CN2)
5
4
+
–
Note
•Be sure to use the voltage of an external control device at 5 VDC or lower.
When connecting an external control device, make sure the polarities are correct. If the polarities are reversed, the
driver may be damaged.
•When a shielded cable is used for connection with the external control device, connect shields to VL of the pin No.4
from near the I/O signal connector (CN2).
 Using PWM signal input
When the operation data is set using the PWM signal input,
connect the PWM signal lines to the pin Nos. 4 and 5 of the CN2.
VM
VL
PWM signal
Green
Yellow
I/O signal connector
(CN2)
5
4
+
–
VH
VL
TH
T
PWM duty cycle (%) = ×100
TH
T
PWM frequency∗(kHz) = 1
T
VH= 4.5 to 5.0 V VL= 0 to 0.5
V
∗
Available for 1 kHz to 25 kHz
• Input signal specications
Note
•Be sure to use the voltage of an external control device at 5 VDC or lower.
When connecting an external control device, make sure the polarities are correct. If the polarities are reversed, the
driver may be damaged.
•When a shielded cable is used for connection with the external control device, connect shields to VL of the pin No.4
from near the I/O signal connector (CN2).

14
Connection
6.6 Grounding
The wire used to ground the motor and driver must be as thick and short to the grounding point as possible so that no
potential dierence is generated. Choose a large, thick and uniformly conductive surface for the grounding point.
zGrounding the motor
Connect the grounding wire along with a set
screw to the grounding point, using a shakeproof
washer.
For the 15 W type motor, remove the paint from
the mounting surface of the geared motor, and
install it to a metal surface that has grounded.
zGrounding the driver
Install the driver to a metal surface that
has grounded.
6.7 Connecting the USB cable (CN4)
When the MEXE02 is used, connect the USB cable
to the USB connector.
Specications of USB cable
Specication USB2.0 (full speed)
Cable Length: 3 m (9.8 ft.) or less Shape: A to mini B
Note
•Connect the driver and PC directly with the USB cable without using a hub or extension cable.
•In large electrically noisy environments, use the USB cable with a ferrite core or install a ferrite core to the USB cable.

15
Connection
6.8 Connecting the RS-485 communication cable (CN5, CN6)
Connect this cable when controlling the driver via RS-485
communication.
Connect the RS-485 communication cable to the CN5
connector or the CN6 connector on the driver. The vacant
connector can be used to connect a dierent driver.
RS-485 communication cables for connection (sold
separately) are available.
zModel
Cable for connecting between driver and controlle 3 m (9.8 ft.): CC030-RS
Cable for connecting between drivers 150 mm (5.91 in.): LH0015-RWN
 Pin assignments
Pin No. Signal name Description CC030-RS wire color
3
2
1
1 TR+ RS-485 communication signal (+) White
2 TR− RS-485 communication signal (−) Gray
3 GND GND Orange
Housing: PAP-03V-S (JST)
Terminal: SPHD-001T-P0.5 (JST)
SPHD-002T-P0.5 (JST)
Applicable lead wire
•SPHD-001T-P0.5 AWG26 to 22 (0.13 to 0.33 mm2)
•SPHD-002T-P0.5 AWG28 to 24 (0.08 to 0.21 mm2)
 Internal input circuit
3 GND
2 TR
-
1 TR+
3 GND
2 TR
-
1 TR+
0 V
120 Ω
1 kΩ
1 kΩ
5 V
0 V
TERM. TERM.
Note
•Keep 10 m (32.8 ft.) or less for the total extension distance of the RS-485 communication cable.
•Use a twisted-pair cable when using a communication cable other than the CC030-RS.
•Keep 15 units or less for the number of drivers connected.

16
Connection
6.9 Connection diagram
A connection example of I/O signals with a programmable controller are as shown below.
The I/O signals circuit of the BLH Series RS-485 communication type are congured with current SINK logic. (Current
SOURCE logic is not supported.)
C-MOS
C-MOS
C-MOS
C-MOS
C-MOS
DriverController
11
10
9
8
7
3
2
1
3
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
D-IN0 (START/STOP)
D-IN1 (RUN/BRAKE)
D-IN2 (FWD/REV)
D-IN3 (M0)
D-IN4 (ALM-RST)
D-OUT0 (SPEED-OUT)
D-OUT1 (ALM-B)
GND
GND
0 V
0 V
0 V
5 VDC
0 V
4.5 to 26.4 VDC
R
R
10 mA or less→
Note
•Insulate unused lead wires which are on the opposite side to the connector of the I/O signal cable to prevent them
from contacting other devices, or connect them to 5 VDC or the signal ground (GND) of your external control device
according to usage of signals.
•When extending the I/O signal cable, keep the length of 3 m (9.8 ft.) or less and wire in order to suppress noise
eects.
•Be sure to suppress the current value of output signals to 10 mA or less. Connect a current limiting resistor R
externally if the current exceeds this specied value.

17
Connection
6.10 Noise elimination measures
There are two types of electrical noises: One is a noise to invade into the driver from the outside and cause the driver
malfunction, and the other is a noise to emit from the driver and cause peripheral equipments malfunction.
For the noise that is invaded from the outside, take measures to prevent the driver malfunction. It is needed to take
adequate measures because signal lines are very likely to be aected by the noise.
For the noise that is emitted from the driver, take measures to suppress it.
Measures against electrical noise
There are the following three methods mainly to take measures against the electrical noise.
zNoise suppression
•When relays or electromagnetic switches are used, use noise lters or CR circuits to suppress surge generated by
them.
•Use a connection cable (sold separately) when extending the wiring distance between the motor and the driver.
This is eective in suppressing the electrical noise emitted from the motor.
•Cover the driver by a metal plate such as aluminum. This is eective in shielding the electrical noise emitted from the
driver.
zPrevention of noise propagation
•Place the power lines such as the motor and power supply cables, keeping a distance of 100 mm (3.94 in.) or more
from the signal lines such as I/O signal cable and RS-485 communication cable, and also do not bundle them or wire
them in parallel. If a power cable and a signal cable have to cross, cross them at a right angle.
•Use a cable of AWG26 (0.14 mm2) or thicker for the I/O signal cable.
•Use a cable of AWG28 (0.08 mm2) or thicker for the RS-485 communication cable.
•For more eective elimination of noise, use shielded cables for a power supply cable and a signal cable or attach
ferrite cores if non-shielded cables are used.
•Keep cables as short as possible without coiling and bundling extra lengths.
•To ground a shielded cable, use a metal cable clamp that
can maintain contact with the entire circumference of the
shielded cable, and ground as near the product as possible.
Cable cramp
Shielded cable
•Grounding multiple points will increase eect to block electrical noise because impedance on the grounding points is
decreased. However, ground them so that a potential dierence does not occur among the grounding points.
zSuppression of eect by noise propagation
•Loop the noise propagated cable around a ferrite core. Doing so will prevent the propagated noise invades into the
driver or emits from the driver. The frequency band in which an eect by the ferrite core can be seen is generally
1 MHz or more. Check the frequency characteristics of the ferrite core used. When increasing the eect of noise
attenuation by the ferrite core, loop the cable a lot.
6.11 Conformity to the EMC Directive
Eective measures must be taken against the EMI that the motor and driver may give to adjacent control-system
equipment, as well as the EMS of the motor and driver itself, in order to prevent a serious functional impediment in the
machinery. The use of the following installation and wiring methods will enable the motor and driver to be compliant
with the EMC Directive. Refer to p.147 for the applicable standards.
Oriental Motor conducts EMC measurements on its motors and drivers in accordance with "Example of installation and
wiring" shown on the next page.
The user is responsible for ensuring the machine’s compliance with the EMC Directive, based on the installation and
wiring explained below.
 About power supply
The BLH Series is a product of DC power supply input. Use a DC power supply (such as a switching power supply) that
optimally conforms to the EMC Directive.
 Connecting the motor cable
When extending the motor cable, use a connection cable (sold separately). The maximum extension distance including
the cable length of the motor itself should be 2 m (6.6 ft.).

18
Connection
 Notes about installation and wiring
•Connect the motor, driver and other peripheral control equipment directly to the grounding point so as to prevent a
potential dierence from developing between grounds.
•When relays or electromagnetic switches are used together with the system, use noise lters and CR circuits to
suppress surges generated by them.
•Keep a power supply cable and a signal cable as short as possible without coiling and bundling extra lengths.
•Separate power lines such as the motor cable and the power supply cable from signal lines, and wire them apart as
much as possible [example: about 100 to 200 mm (3.94 to 7.87 in.)]. If the power lines must cross over the signal lines,
wire them at right angles.
 Example of installation and wiring
RS-485 communication cable
Host controller
Motor
Driver
I/O signal cable
[3 m (9.8 ft.) or less]∗
External potentiometer cable
[3 m (9.8 ft.) or less]∗
DC power supply
(Grounded panel)
Motor
cable
External
potentiometer
Grounding
Grounding
Grounding
Grounding
Power supply cable
[2 m (6.6 ft.) or less]
* Shielded cable
 Precautions about static electricity
Static electricity may cause the driver to malfunction or suer damage. Be careful of handling the driver while the power
is supplied.
Note
•Do not approach or touch the driver while the power is supplied.
•Always use an insulated screwdriver to set the address number setting switch and the termination resistor switch of
the driver.

19
Operation data
7 Operation data
This chapter describes operations that can be performed with the BLH Series RS-485 communication type.
7.1 Setting the operation data
Data required to operate the motor is as follows.
Data name Description
Rotation speed The motor rotation speed can be set.
Torque limiting value The output torque of the motor can be limited. The maximum torque can be set based on the motor rated
torque being 100%.
Acceleration time The acceleration time can be set as a time needed for the motor to reach the reference speed (3000 r/min)
from a standstill state.
Deceleration time The deceleration time can be set as a time needed for the motor to stop from the reference speed (3000 r/min).
 Setting method
The setting method of the rotation speed and the torque limiting value is "Digital setting" at the factory setting and can
be selected in each operation data number. Eight operation data can be set.
The setting method of operation data can be set using the MEXE02 or RS-485 communication.
B: Update after operation stop
Parameter name Description Setting method Factory
setting Update
Operation data No.0 rotation speed setting method Selects the setting method
of the rotation speed. 0: Digital setting
3: External analog setting
device/PWM signal
input
0 B
to
Operation data No.7 rotation speed setting method
Operation data No.0 torque limiting value setting method Selects the setting method
of the torque limiting
value.
to
Operation data No.7 torque limiting value setting method
Note
•If "External analog setting device/PWM signal input" of the setting method is selected in both the rotation speed
and the torque limiting value of the same operation data number, operation can not be performed. Under this
condition, the operation data setting error information is generated. Also, if the operation data number that is the
cause of the operation data setting error information is selected to operate, the operation will not be performed
and the operation prohibited information will be generated.
•Set the operation data using either the external analog potentiometer or the PWM signal input because the same
terminal is used. When the PWM signal input is used, change the "External setting method" parameter to "PWM
signal input." (Factory setting: External analog setting device)
 Setting range
The setting range and the factory setting of operation data required to operate the motor are as follows.
A: Update immediately
Parameter name Description Setting
range
Factory
setting Update
Operation data No.0 rotation speed Sets the rotation speed for the operation data Nos. 0 to 7.
When the setting method is "Digital setting," the setting
value is applied.
0, 80 to 3150
r/min 0
A
to
Operation data No.7 rotation speed
Operation data No.0 torque limiting value Sets the torque limiting value for the operation data
Nos. 0 to 7. When the setting method is "Digital setting,"
the setting value is applied.
0 to 200% 200to
Operation data No.7 torque limiting value
Operation data No.0 acceleration time Sets the acceleration time for the operation data Nos. 0
to 7. 0.1 to 15.0 s 0.5to
Operation data No.7 acceleration time
Operation data No.0 deceleration time Sets the deceleration time for the operation data Nos. 0
to 7. 0.1 to 15.0 s 0.5to
Operation data No.7 deceleration time
Note
•The rotation speed and the torque limiting value are applied when the setting method is set to "Digital setting."
The setting method can be checked using the status monitor of the MEXE02 or RS-485 communication.
•0 r/min is excluded from the "Speed lower limit" parameter.

20
Operation data
7.2 Setting the rotation speed
Setting method
Digital External analog setting device/PWM signal input
Host
controller
0 to 5 VDC
1 mA or more
MEXE02 or RS-485 communication External potentiometer External DC voltage PWM signal
The setting method for each operation data number can be changed using the MEXE02 or RS-485 communication.
If the external analog setting device/PWM signal input is selected in the setting method, set whether to set the
operation data with the external analog setting device (external potentiometer, external DC voltage) or the PWM signal
input using the "External setting method" parameter.
Refer to p.35 when setting the upper limit and the lower limit of the rotation speed.
 Digital setting
Setting range: 0, 80 to 3150 r/min
(Factory setting: 0 r/min)
[MEXE02 Setting window of rotation speed]