Oriental motor BLH Series User manual

HP-5074-9
Brushless Motor
BLH Series Digital Setting Type
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
2
1 Introduction ........................................................3
2 Safety precautions ............................................4
3 Precautions for use ...........................................5
4 Preparation..........................................................6
4.1 Checking the product ......................................... 6
4.2 How to identify the product model ............... 6
4.3 Information about nameplate.......................... 6
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) ...........11
6.3 Connecting the I/O signals (CN2)..................12
6.4 Driver I/O circuit ..................................................13
6.5 Connecting external analog setting
devices ....................................................................15
6.6 Grounding .............................................................15
6.7 Connecting the USB cable (CN4)...................16
6.8 Connection diagram..........................................16
6.9 Noise measures....................................................17
6.10 Conformity to the EMC Directive ..................18
6.11 I/O signals ..............................................................20
7 Operation.......................................................... 28
7.1 Guidance................................................................28
7.2 Setting the operation data ..............................28
7.3 Setting the rotation speed...............................30
7.4 Setting the acceleration time and
deceleration time................................................31
7.5 Setting the torque limiting value..................32
7.6 Operation and stop............................................34
7.7 Rotation direction of the motor output
shaft .........................................................................35
7.8 Multi-speed operation ......................................35
7.9 Multi-motor control ...........................................36
8 MEXE02............................................................ 37
8.1 Starting
MEXE02................................................37
8.2 Monitor...................................................................37
8.3 Test operation.......................................................41
9 Settings of MEXE02 ..................................... 42
9.1 Timing to update data when the setting
is changed .............................................................42
9.2 Parameter list........................................................43
9.3 Operation data extension setting.................46
9.4 Operation and I/O action .................................49
9.5 Alarm and information settings.....................53
9.6 Monitor setting....................................................54
9.7 I/O function selection........................................55
9.8 I/F function............................................................56
10 Maintenance and inspection ..................... 57
10.1 Inspection ..............................................................57
10.2 Warranty.................................................................57
10.3 Disposal ..................................................................57
11 Troubleshooting............................................. 58
12 Alarms ................................................................ 60
12.1 Alarm reset ............................................................60
12.2 Alarm history ........................................................60
12.3 Alarm lists...............................................................61
13 Information....................................................... 62
13.1 Information history ............................................62
13.2 Information lists...................................................63
14 Specications................................................... 65
14.1 Specications .......................................................65
14.2 General specications .......................................66
14.3 Dimension .............................................................66
15 Regulations and standards......................... 67
15.1 UL Standards, CSA Standards .........................67
15.2 CE Marking ............................................................67
15.3 RoHS Directive .....................................................67
15.4 Republic of Korea, Radio Waves Act.............67

3
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 are listed below.
Operating manuals are not included with the product. Download from Oriental Motor Website Download Page or
contact your nearest Oriental Motor sales oce.
Operating manual name Operating manual number
Driver BLH Series Digital Setting Type OPERATING MANUAL(this document) HP-5074
Motor
BLHM Motor OPERATING MANUAL HM-5238
BLHM Electromagnetic Brake Motor HM-5258
DC Power Input Drivers BLM Motor Connector type OPERATING MANUAL HM-5267

4
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, in places subjected to splashing
water, or near combustibles. Doing so may result in re or injury.
•Do not transport, install, connect or inspect the product while the power is supplied. Always turn o the power before carrying out
these operations. Damage to equipment may result.
•Do not use a motor 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 touch the motor or driver when conducting the insulation resistance measurement or dielectric strength test. Accidental
contact may result in electric shock.
•Do not disassemble or modify the driver. Doing so may cause injury or damage to equipment. 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.
•Use a motor and driver only in the specied combination. Failure to do so may result in re or damage to equipment.
•If the driver protective function was activated, remove the cause before resetting the protective function. 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 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 or damage to equipment.
•Be sure to observe the specied cable sizes. Failure to do so may result in re or damage to equipment.
•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.
•Always turn o the power before performing maintenance or inspection. Failure to do so may result in electric shock.
CAUTION
•Do not use the driver beyond the specications. Doing so may result in re, injury or damage to equipment.
•Do not touch the driver during operation or immediately after stopping. The surface is hot, and this may cause a skin burn(s).
•Keep the area around the driver free of combustible materials. Failure to do so may result in re or a skin burn(s).
•Do not leave anything around the 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.
•Securely install the driver to the mounting plate. Inappropriate installation may cause the driver to detach and fall, resulting in injury
or damage to equipment.
•Be sure to ground the motor and driver to prevent them from being damaged by static electricity. Failure to do so may result in re or
damage to equipment.
•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 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, electric shock
or injury.
•Before turning on the power to the driver, make sure to turn all input signals of the driver to OFF. Otherwise, the motor may suddenly
start when the power is on, leading to injury or damage to equipment.

5
Precautions for use
3 Precautions for use
This chapter covers limitations and requirements the user should consider when using the product.
Use a driver and motor only in the specied combination.
Refer to "4.4 Products possible to combine" on p.7 for combinations of the driver and motor.
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.

6
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 □Instructions and Precautions for Safe Use........ 1 copy
4.2 How to identify the product model
BLH2D 30 D H- K D
①②③ ④ ⑤ ⑥
①Driver type BLH2D: BLH Series driver
②Output power 15: 15 W 30: 30 W 50: 50 W
③Identication code D
④Motor connection method Blank: Cable type H: Connector type
⑤Power supply voltage K: 24 VDC
⑥Blank: Analog setting type D: Digital setting type R: RS-485 communication type
4.3 Information about nameplate
Serial number Manufacturing date
Driver model
Driver specications

7
Preparation
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.
Motor model columns in the table below describes part of the motor model name.
For details about the motor, refer to the operating manual of the motor.
Applicable motor Output power Driver model Motor model Cable set model
BLHM Motor
15 W BLH2D15-KD BLHM015
LHS003CD
or
LHS010CD
30 W BLH2D30-KD BLHM230
50 W BLH2D50-KD BLHM450
BLM Motor
15 W BLH2D15H-KD BLM015HK
30 W BLH2D30DH-KD BLM030DHK
BLH2D30H-KD BLM230HK
50 W BLH2D50DH-KD BLM250DHK
BLH2D50H-KD BLM450HK
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.) LHS003CD LH003C4 LH003C1
1000 mm (39.4 in.) LHS010CD LH010C4 LH010C1

8
Preparation
4.5 Names and functions of parts
This section explains the name and function for each part of the driver.
Motor connector (CN3)
LED (PWR/ALM)
Power supply connector (CN1)
I/O signal connector (CN2)
Internal potentiometer 1 (VR1)
Internal potentiometer 2 (VR2)
USB connector (CN4)
CN1 PWR/ALM VR2VR1 CN4CN2
+
-
CN3
Name Indication 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.
LED PWR/ALM
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.
Internal potentiometer *
VR1 Uses to set the operation data.
Factory setting: The rotation speed in the operation data No.1 can be set.
VR2
Uses to set the operation data.
Factory setting: The acceleration time and deceleration time in the operation
data No.0 and No.1 can be set.
* The function can be changed using the MEXE02.

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 direction
:
20 mm (0.79 in.)
or more
Vertical direction
:
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 as not to leave a 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 cable, 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
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
Pin No. Lead wire color*Lead wire size
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 and connector type, all lead wire sizes are AWG22 (15W: AWG24).

11
Connection
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
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
6.3 Connecting the I/O signals (CN2)
Insert the connector of the I/O signal cable into the I/O signal connector (CN2) of the driver.
Lead wire size: AWG26 (0.14 mm2)
CN2 pin assignment
Viewed from the direction of an arrow in the right gure
VR2CN2
21
43
65
87
109
1413
1211
Housing: PHDR-14VS (JST)
Terminal: SPHD-001T-P0.5 (JST)
Pin
No.
Lead wire
color
Terminal
name
Initial assignment
signal *1 Description
14 Yellow/Black DIN0 [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 the 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.
13 Orange/
White DIN1 [RUN/BRAKE]
12 Red/White DIN2 [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
11 Brown/White DIN3 [M0] The operation data number can be selected based on a combination of
ON-OFF status of the M0 and M1 inputs.
10 Black DIN4 [M1]
9 White DIN5 [ALM-RST] This signal is used to reset the alarm.
(The alarm will be reset at the ON edge of the input.)
8Gray VH
External analog
setting device *3
These terminals are used when the rotation speed or torque limiting
value is externally set using an external analog setting device (external
potentiometer or external DC voltage).
7 Purple VM
6 Blue VL
5 Green GND GND I/O signals common
4 Yellow DOUT0 [SPEED-OUT] 30 pulses are output while the motor output shaft makes one revolution.
3 Orange DOUT1 [ALM-B] This is a signal to output an alarm status.
It is turned OFF when an alarm is generated. (Normally closed)
2 Red DOUT2 [TLC] This is a signal to output when the motor output torque is limited. *4
1 Brown DOUT3 [DIR] This is a signal to output information of the motor rotation direction.
(It is turned ON when the motor rotates in the forward direction.)
*1 A signal assigned at the time of shipment is described in brackets [ ]. Functions for the pin No.1 to No.4 and No.9 to No.14
can be changed using the MEXE02.
*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.
*4 The torque limiting value is set to 200% at the time of shipment and can be changed using the MEXE02.

13
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)."
zExternal control device output is a 5 V
C-MOS output
C
R
+5 V
10 kΩ
C-MOS
Driver internal circuit
0 V0 V
+5 V
C-MOS
Pin No.
9, 10, 11,
12, 13, 14
5
GND
zExternal control device output is an
open-collector output
Open collector
0 V
C
R
+5 V
10 kΩ
C-MOS
Driver internal circuit
0 V
Pin No.
9, 10, 11,
12, 13, 14
5
GND
zSwitch connection
Switch
C
R
+5 V
10 kΩ
C-MOS
Driver internal circuit
0 V
Pin No.
9, 10, 11,
12, 13, 14
5
GND
zChanging the logic level setting of input signals
The logic level setting for input terminals DIN0 to DIN5 can be changed using the MEXE02.
Refer to p.55 for details.

14
Connection
 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 photocoupler 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
R∗
Driver internal circuit
4.5 to 26.4 VDC
0 V 0 V
Pin No.
1, 2, 3, 4
5
GND
* 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 DOUT0 to DOUT3 can be changed using the MEXE02.
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 at 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.
1, 2, 3,
4
Pin No.
Inductive load
Fly
wheel diode
Inductive load
R

15
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
torque limiting value can be set.
 Using an external potentiometer
Connect to the pin No.6 to No.8 of the CN2.
External potentiometer
PAVR2-20K
(sold separately)
21 3VH
VM
VL
I/O signal connecto
r
(CN2)
0 to 20 kΩ
Gray
Purple
Blue
8
7
6
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.6
from near the I/O signal connector (CN2).
 Using external DC voltage
For the external voltage, use a DC power supply (0 to 5 VDC) with
reinforced insulation on its primary and secondary sides, and
connect to the pin No.6 and No.7 of the CN2.
Input impedance between the VM input and 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
I/O signal connector
(CN2)
Purple
Blue
7
6
+
–
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.6
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 No.6 and No.7 of the CN2.
Refer to p.47 for details about the PWM signal. PWM signal
VM
VL
I/O signal connector
(CN2)
Purple
Blue
7
6
+
–
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 driver
Install the driver to a metal surface that has grounded.

16
Connection
6.7 Connecting the USB cable (CN4)
Connect the USB cable to the USB connector when
using the MEXE02.
Specications of USB cable
Specications 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.
6.8 Connection diagram
The gure shows an example when an external potentiometer is connected.
External potentiometer
PAVR2-20K
(sold separately)
21 3
0 to 20 kΩ
+
CN1
Motor connector
CN3
CN4
–
Driver
24 VDC±10%
DC power supply
Connecting the USB
DIN0 (START/STOP) 14
CN2
13
12
11
10
9
8
DIN1 (RUN/BRAKE)
DIN2 (FWD/REV)
DIN3 (M0)
DIN4 (M1)
DIN5 (ALM-RST)
VH
7
VM
6
VL
5
GND
DOUT0 (SPEED-OUT)
DOUT1 (ALM-B)
DOUT2 (TLC)
DOUT3 (DIR)
Connecting the motor
Motor
Grounding
4
3
2
1
Connecting output signals
Connecting input signals
–
+
Grounding
T
o external
control devic
e
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.
p.14

17
Connection
6.9 Noise 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
•Separate power lines such as motor cable and power supply cable from signal lines for a distance of 100 mm (3.94 in.)
or more, and also do not bundle them or wire them in parallel. If the power lines must cross over the signal lines, wire
them at right angles.
•Use a cable of AWG26 (0.14 mm2) or thicker for the signal cable of the driver, and keep the wiring distance of 3 m (9.8ft.)
or less.
•For more eective elimination of noise, use shielded cables for a power supply cable and I/O 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.

18
Connection
6.10 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.67 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.
CAUTION
This equipment is not intended for use in residential environments nor for use on a low-
voltage public network supplied in residential premises, and it may not provide adequate
protection to radio reception interference in such environments.
 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.).
 Ferrite core
Use a ferrite core to suppress eect by noise propagation.
Use 7427122 (Würth Elektronik GmbH & Co.KG), ZCAT3035-1330 (TDK Corporation) or equivalent ferrite cores.
Install the ferrite core as close as possible to the driver.
 Wiring the I/O signal cable
Refer to "Prevention of noise propagation" on p.17.
 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 signal cable as short as possible without coiling and bundling extra lengths.
•Separate power lines such as motor cable and 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.

19
Connection
 Example of installation and wiring
zDriver model: BLH2D15-KD, BLH2D30-KD, BLH2D50-KD
External
potentiometer
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)
Power supply cable
[2 m (6.6 ft.) or less]
Motor cable
Ferrite
core
Ferrite core
Grounding
Grounding
Grounding
zDriver model: BLH2D15H-KD, BLH2D30DH-KD, BLH2D30H-KD, BLH2D50DH-KD, BLH2D50H-KD
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)
Power supply cable
[2 m (6.6 ft.) or less]
Connection
cable
Grounding
Grounding
Grounding
Grounding
External
potentiometer
Motor
Driver
* Shielded cable
 Precautions about static electricity
Static electricity may cause the driver to malfunction or suer damage. Be careful when handling the driver while the
power is supplied.
Always use an insulated screwdriver to adjust the internal potentiometers of the driver.
Note Do not approach or touch the driver while the power is on.

20
Connection
6.11 I/O signals
This section explains about input signals and output signals.
6.11.1 I/O signals list
 Input signals
Terminal name Signal name Description
DIN0 START/STOP This signal is used to rotate the motor or decelerate to stop it.
3-Wire modeDIN1 RUN/BRAKE This signal is used to rotate the motor or stop it instantaneously.
DIN2 FWD/REV This signal is used to select the motor rotation direction.
DIN3 M0 These signal are used to select the operation data number.
DIN4 M1
DIN5 ALM-RST This signal is used to reset the alarm generated presently.
Signals
possible to
change the
assignment
FWD*This signal is used to rotate the motor in the forward direction.
2-Wire modeREV*This signal is used to rotate the motor in the reverse direction.
STOP-MODE*This signal is used to select how to stop the motor.
M2 This signal is used to select the operation data number.
TL This signal is used to switch whether to enable or disable the torque limiting function.
INFO-CLR This signal is used to reset the information generated presently.
HMI This signal is used to release the function limitation of the MEXE02.
EXT-ERROR This signal is used to stop the motor forcibly by the external signal.
H-FREE
This is the input signal that can be used when the load holding function is enabled.
If the H-FREE input is turned ON when the stopped motor shaft is electrically held by
the load holding function, the motor shaft can be rotated by an external force (free-run
state).
* This is a signal to switch using a parameter.