Inovance SV670P Series Installation instructions

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Preface
Preface
Introduction
Thank you for purchasing the SV670P series servo drive developed by Inovance.
The SV670P series servo drive is a high‑end servo drive designed based on global‑
leading standards and high‑end application needs. It is featured with high speed, high
precision, high performance, and tuning‑free Function.
The servo drive covers a power range from 0.05 kW to 7.5 kW and carries Modbus
communication interfaces to work with the host controller for a networked operation
of multiple servo drives. The drive comes with the ITune function which supports
adaptive stiffness level setting, inertia auto‑tuning, and vibration suppression for easy
use. The servo drive, together with an MS1 series high‑response servo motor (with
ultra‑low, low or medium inertia) equipped with a 23‑bit single‑turn/multi‑turn
absolute encoder, serve to deliver a quiet and stable operation and accurate process
control through the fully closed‑loop function and internal process segment function.
The drive also offers dynamic braking. The drive aims to achieve quick and accurate
position control, speed control, and torque control through high‑performance
solutions for automation equipment in such industries as electronic manufacturing,
lithium batteries, manipulators, packaging, and machine tools.
This guide presents the servo drive electrical design guidance, terminal introduction,
certification and standard requirements, and suggestions for solving common EMC
problems.
More Documents
Name Data Code Description
SV670P Series Servo Drive
Selection Guide 19011852
Provides instructions on product
selection, including the list of supporting
components, technical data on the drive
and motor, and the selection guide of
cables.
SV670P Series Servo Drive
installation Guide 19011868
Presents installation of the servo drive,
including installation steps, , mechanical
installation, and electrical installation.
SV670P Series Servo Drive
Hardware Guide 19011854
Presents electrical design guidance of the
equipment, description of terminals,
required certificates and standards and
solutions to common EMC problems.
SV670P Series Servo Drive
Commissioning Guide 19011856
Presents servo commissioning, parameter
descriptions, including the operating
panel, commissioning software,
commissioning procedure and a
parameter list.

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Preface
Name Data Code Description
SV670P Series Servo Drive
Function Guide 19011866
Presents functions and parameters,
including function overview, basic servo
functions, adjustment and parameter list.
SV670P Series Servo Drive
Communication Guide 19011871
Presents functions and parameters of the
servo drive, including Modbus
communication configuration, parameter
descriptions, and communication
application cases.
SV670P Series Servo Drive
Troubleshooting Guide 19011869
Introduces faults and fault levels, the
troubleshooting process, warning codes
and fault codes.
SV670P Series Servo Drive
Maintenance Guide 19011870 Provides instructions on maintenance
and repair of the equipment.
SV670P Series Servo Drive Safety
Guide 19011867
Presents the safety function and related
certifications and standards, wiring,
commissioning process, troubleshooting,
and functions.
SV670P Series Servo Drive Manual
Package PS00005526
Provides information on selection,
installation, commissioning, function,
troubleshooting and parameters of the
equipment.
Revision History
Date of Revision Version Description
2022‑08 A04 Modified the recommendations for the main circuit
cable.
2022‑07 A03
●Updated the schematic diagram of the drive.
●Deleted information on the CN8 terminal.
●Modified the recommended specifications of the main
circuit cable lug.
2022‑05 A02
●Changed the CN3/CN4 terminals in the system
connection diagram.
●Modified the wiring diagram for torque control mode.
●Modified the terminal layout diagram in section 4.4.
●Modified the connection diagram of the CN2 absolute
encoder.
2022‑05 A01 Modified the analog input wiring diagram.
2022‑04 A00 First release.
Document Acquisition
This manual is not delivered with the product. You can obtain the PDF version by
visiting:
●
http://www.inovance.com
.

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Preface
●Scan the QR code on the equipment to acquire more.

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Preface.............................................................................. 1
General Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 System structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.1 System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.2 System Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2 Electrical Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1 Wiring diagram of the Position Control Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2 Wiring Diagram for Torque Control Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3 Electrical Design Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 Design of Periphery Electrical Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2 Power Cable Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.1 Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.1.1 Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
3.2.1.2 Power Cable Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.2.1.3 Power Cable Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
3.2.1.4 Power Cable Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
3.2.2 Motor Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.2.2.1 Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
3.2.2.2 Power Cable Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
3.2.2.3 Power Cable Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
3.2.2.4 Power Cable Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
3.2.3 Encoder Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.2.3.1 Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
3.2.3.2 Encoder Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
3.3 Control Cable Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3.1 Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3.2 Control Cable Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3.3 Control Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3.4 Control Cable Shield. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.4 Communication Cable Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.4.1 CAN Communication Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.4.2 RS485 Communication Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.5 Cable Routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.5.1 Routing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.5.2 Routing Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.5.3 Grounding and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.1 Pin Assignment of Main Circuit Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table of Contents

4.2 Description of Control Terminal (CN1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.2.1 Terminal Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.2.2 Position Reference Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.2.3 AI/AO Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.2.4 DI/DO Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
4.2.5 Encoder Frequency‑Division Output Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.2.6 Wiring of the Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4.3 Description of Encoder Terminal (CN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4.4 Description of Communication Terminals (CN3/CN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
4.5 Description of Communication Terminal (CN5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.6 CN6 STO safety Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
4.7 Description of the 2nd Encoder Terminal (CN7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.8 Wiring of the External Regenerative Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
5 Certification and Standard Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.1 CE Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.1.1 Requirements for Compliance with EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
5.1.2 Requirements for Compliance with LVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
5.2 UL/cUL Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
5.3 KC Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
6 Solutions to Common EMC Interference Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.1 Malfunction of the Residual Current Device (RCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.2 Harmonic Suppression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
6.3 Control Circuit Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Table of Contents

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General Safety Instructions
General Safety Instructions
Safety Precautions
●This section explains the safety precautions that need to be observed to use this
product correctly. Before using this product, please read the instruction manual
and correctly understand the relevant information of safety precautions. Failure to
comply with the safety precautions may result in death, serious injury, or
equipment damage.
●"CAUTION", "WARNING", and "DANGER" items in the guide only indicate some of
the precautions that need to be followed; they just supplement the safety
precautions.
●Use this equipment according to the designated environment requirements.
Damage caused by improper use is not covered by warranty.
●Inovance shall take no responsibility for any personal injuries or property damage
caused by improper use.
Safety Levels and Definitions
Indicates that failure to comply with the notice will result in death
or severe personal injuries.
Indicates that failure to comply with the notice may result in death
or severe personal injuries.
Indicates that failure to comply with the notice may result in minor
or moderate personal injuries or equipment damage.
General Safety Instructions
●Drawings in the selection guide are sometimes shown without covers or protective
guards. Remember to install the covers or protective guards as specified first, and
then perform operations in accordance with the instructions. Install the covers or
protective guards as specified, and use the equipment in accordance with the
instructions described in the user guide.
●The drawings in the guide are shown for illustration only and may be different
from the product you purchased.

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General Safety Instructions
Unpacking
●Do not install the equipment if you find damage, rust, or signs of use on the equipment
or accessories upon unpacking.
●Do not install the equipment if you find water seepage or missing or damaged
components upon unpacking.
●Do not install the equipment if you find the packing list does not conform to the
equipment you received.
●Check whether the packing is intact and whether there is damage, water seepage,
dampness, and deformation before unpacking.
●Unpack the package by following the unpacking sequence. Do not strike the package
violently.
●Check whether there is damage, rust, or injuries on the surface of the equipment and
equipment accessories before unpacking.
●Check whether the package contents are consistent with the packing list before
unpacking.
Storage and Transportation
●Large‑scale or heavy equipment must be transported by qualified professionals using
specialized hoisting equipment. Failure to comply may result in personal injuries or
equipment damage.
●Before hoisting the equipment, ensure the equipment components such as the front
cover and terminal blocks are secured firmly with screws. Loosely‑connected
components may fall off and result in personal injuries or equipment damage.
●Never stand or stay below the equipment when the equipment is being hoisted by the
hoisting equipment.
●When hoisting the equipment with a steel rope, ensure the equipment is hoisted at a
constant speed without suffering from vibration or shock. Do not turn the equipment
over or let the equipment stay hanging in the air. Failure to comply may result in
personal injuries or equipment damage.

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General Safety Instructions
●Handle the equipment with care during transportation and mind your steps to prevent
personal injuries or equipment damage.
●When carrying the equipment with bare hands, hold the equipment casing firmly with
care to prevent parts from falling. Failure to comply may result in personal injuries.
●Store and transport the equipment based on the storage and transportation
requirements. Failure to comply will result in equipment damage.
●Avoid storing or transporting the equipment in environments with water splash, rain,
direct sunlight, strong electric field, strong magnetic field, and strong vibration.
●Avoid storing the equipment for more than three months. Long‑term storage requires
stricter protection and necessary inspections.
●Pack the equipment strictly before transportation. Use a sealed box for long‑distance
transportation.
●Never transport the equipment with other equipment or materials that may harm or
have negative impacts on this equipment.
Installation
●The equipment can be operated by well‑trained and qualified professionals only. Non‑
professionals are not allowed.
●Read through the guide and safety instructions before installation.
●Do not install this equipment in places with strong electric or magnetic fields.
●Before installation, check that the mechanical strength of the installation site can bear
the weight of the equipment. Failure to comply will result in mechanical hazards.
●Do not wear loose clothes or accessories during installation. Failure to comply may
result in an electric shock.
●When installing the equipment in a closed environment (such as a cabinet or casing),
use a cooling device (such as a fan or air conditioner) to cool the environment down to
the required temperature. Failure to comply may result in equipment over‑temperature
or a fire.
●Do not retrofit the equipment.
●Do not fiddle with the bolts used to fix equipment components or the bolts marked in
red.
●When the equipment is installed in a cabinet or final assembly, a fireproof enclosure
providing both electrical and mechanical protections must be provided. The IP rating
must meet IEC standards and local laws and regulations.
●Before installing devices with strong electromagnetic interference, such as a
transformer, install a shielding device for the equipment to prevent malfunction.
●Install the equipment onto an incombustible object such as a metal. Keep the
equipment away from combustible objects. Failure to comply will result in a fire.

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General Safety Instructions
●Cover the top of the equipment with a piece of cloth or paper during installation. This is
to prevent unwanted objects such as metal chippings, oil, and water from falling into the
equipment and causing faults. After installation, remove the cloth or paper on the top of
the equipment to prevent over‑temperature caused by poor ventilation due to blocked
ventilation holes.
●Resonance may occur when the equipment operating at a constant speed executes
variable speed operations. In this case, install the vibration‑proof rubber under the
motor frame or use the vibration suppression function to reduce resonance.
Wiring
●Equipment installation, wiring, maintenance, inspection, or parts replacement must be
performed only by professionals.
●Before wiring, cut off power connections with all equipment. Residual voltage exists
after power cut‑off. Therefore, wait at least the time designated on the equipment
warning label before further operations. Measure the DC voltage of the main circuit and
make sure it is below the safe voltage, otherwise there will be the danger of electric
shock.
●Do not perform wiring, remove the equipment cover, or touch the circuit board with
power ON. Failure to comply will result in an electric shock.
●Check that the equipment is grounded properly. Failure to comply will result in an
electric shock.
●Do not connect the input power supply to the output end of the equipment. Failure to
comply will result in equipment damage or even a fire.
●When connecting a drive to the motor, check that the phase sequences of the drive and
motor terminals are consistent to prevent reverse motor rotation.
●Cables used for wiring must meet cross sectional area and shielding requirements. The
shield of the cable must be reliably grounded at one end.
●Fix the terminal screws with the tightening torque specified in the user guide. Improper
tightening torque may overheat or damage the connecting part, resulting in a fire.
●After wiring is done, check that all cables are connected properly and no screws,
washers or exposed cables are left inside the equipment. Failure to comply may result in
an electric shock or equipment damage.
●During wiring, follow the proper electrostatic discharge (ESD) procedure, and wear an
antistatic wrist strap. Failure to comply will damage the equipment or the internal
circuits of the equipment.
●Use shielded twisted pairs for the control circuit. Connect the shield to the grounding
terminal of the equipment for grounding purpose. Failure to comply will result in
equipment malfunction.
Power-on

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General Safety Instructions
●Before power‑on, check that the equipment is installed properly with reliable wiring and
the motor can be restarted.
●Check that the power supply meets equipment requirements before power‑on to
prevent equipment damage or a fire.
●After power‑on, do not open the cabinet door or protective cover of the equipment,
touch any terminal, or disassemble any unit or component of the equipment. Failure to
comply will result in an electric shock.
●Perform a trial run after wiring and parameter setting to ensure the equipment operates
safely. Failure to comply may result in personal injuries or equipment damage.
●Before power‑on, make sure that the rated voltage of the equipment is consistent with
that of the power supply. Failure to comply may resulting in a fire. Failure to comply
may result in a fire.
●Before power‑on, check that no one is near the equipment, motor, or machine. Failure
to comply may result in death or personal injuries.
Operation
●The equipment must be operated only by professionals. Failure to comply will result in
death or personal injuries.
●Do not touch any connecting terminals or disassemble any unit or component of the
equipment during operation. Failure to comply will result in an electric shock.
●Do not touch the equipment casing, fan, or resistor with bare hands to feel the
temperature. Failure to comply may result in personal injuries.
●Prevent metal or other objects from falling into the equipment during operation. Failure
to comply may result in a fire or equipment damage.
Maintenance
●Equipment installation, wiring, maintenance, inspection, or parts replacement must be
performed only by professionals.
●Do not maintain the equipment with power ON. Failure to comply will result in an
electric shock.
●Before maintenance, cut off all the power supplies of the equipment and wait for at least
the time designated on the equipment warning label.
●In case of a permanent magnet motor, do not touch the motor terminals immediately
after power‑off because the motor terminals will generate induced voltage during
rotation even after the equipment power supply is off. Failure to comply will result in an
electric shock.

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General Safety Instructions
●Perform routine and periodic inspection and maintenance on the equipment according
to maintenance requirements and keep a maintenance record.
Repair
●Equipment installation, wiring, maintenance, inspection, or parts replacement must be
performed only by professionals.
●Do not repair the equipment with power ON. Failure to comply will result in an electric
shock.
●Before inspection and repair, cut off all the power supplies of the equipment and wait
for at least the time designated on the equipment warning label.
●Submit the repair request according to the warranty agreement.
●When the fuse is blown or the circuit breaker or earth leakage current breaker (ELCB)
trips, wait for at least the time designated on the equipment warning label before
power‑on or further operations. Failure to comply may result in death, personal injuries
or equipment damage.
●When the equipment is faulty or damaged, the troubleshooting and repair work must be
performed by professionals that follow the repair instructions, with repair records kept
properly.
●Replace quick‑wear parts of the equipment according to the replacement instructions.
●Do not use damaged equipment. Failure to comply may result in death, personal
injuries, or severe equipment damage.
●After the equipment is replaced, check the wiring and set parameters again.
Disposal
●Dispose of retired equipment in accordance with local regulations and standards.
Failure to comply may result in property damage, personal injuries, or even death.
●Recycle retired equipment by observing industry waste disposal standards to avoid
environmental pollution.
Additional Precautions
Dynamic brake
●Dynamic braking can only be used for emergency stop in case of failure and
sudden power failure. Do not trigger failure or power failure frequently.
●Ensure that the dynamic braking function has an operation interval of more than 5
minutes at high speed, otherwise the internal dynamic braking circuit may be
damaged.

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General Safety Instructions
●Dynamic braking is common in rotating mechanical structures. For example, when
a motor has stopped running, it keeps rotating due to the inertia of its load. In this
case, this motor is in the regenerative state and short‑circuit current passes
through the dynamic brake. If this situation continues, the drive, and even the
motor, may be burned.
Safety Label
For safe equipment operation and maintenance, comply with the safety labels on the
equipment. Do not damage or remove the safety labels. See the following table for
descriptions of the safety labels.
Safety Label Description
●Never fail to connect the protective earth (PE) terminal. Read
through the guide and follow the safety instructions before use.
●Never fail to connect Protective Earth (PE) terminal. Read the manual
and follow the safety instructions before use.
●Do not touch terminals within 15 minutes after disconnecting the
power supply to prevent the risk of electric shock.
●Do not touch terminals with 15 minutes after Disconnect the power.
Risk of electrical shock.
●Do not touch the heatsink with power ON to prevent the risk of burn.
●Do not touch heatsink when power is ON. Risk of burn.

System structure
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1 System structure
1.1 System Connection Diagram
Figure 1‑1 Example wiring of a single‑phase 220 V system

System structure
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Figure 1‑2 Example wiring of a three‑phase 220 V or 380 V system
Note
●[1] CN3 and CN4 communication terminals can be used interchangeably. Their pin
assignments are exactly the same.
●CN3 and CN4 (communication terminals) are applicable to SV670C series products
for CANopen communication.
●CN6 (STO terminal) is only applicable to customized model ‑FS.
1.2 System Composition
●The servo drive is directly connected to an industrial power supply, with no
isolation such as a transformer. A fuse or circuit breaker therefore must be
connected to the input power supply to prevent electric shock in the servo system.

System structure
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For the sake of safety, install a residual current device (RCD) to provide protections
against overload and short circuit or a specialized RCD to protect the grounding
cable.
●Do not start or stop the motor by using the electromagnetic contactor. As a high‑
inductance device, the motor may generate high voltages instantaneously, which
may break down the contactor.
●When connecting an external power supply to the control circuit or a 24 VDC
power supply, pay attention to the power capacity as insufficient power capacity
will lead to insufficient supply current, resulting in failure of the servo drive or the
brake. This is especially true when the power supply is used to power up multiple
servo drives or brakes. The brake must be powered up by a 24 VDC power supply
that matches the motor model and meets the brake power requirements.
Note
●The built‑in regenerative resistor or jumper bar is not available in models S1R6
and S2R8. If an external regenerative resistor is needed for these models, connect
it between terminals P⊕ and C.
●Remove the jumper between P⊕ and D before using the external regenerative
resistor. Failure to comply will result in overcurrent and damage the braking
transistor.
●Do not connect the external regenerative resistor to the positive or negative pole
of the bus directly. Failure to comply will damage the servo drive and result in a
fire.
●Do not select any resistor lower than the minimum allowed resistance value.
Failure to comply will result in E201.0 (Hardware overcurrent) or damage the servo
drive.
●Make sure parameters H02.25 (Regenerative resistor setting), H02.26 (Power of
external regenerative resistor) and H02.27 (Resistance of external regenerative
resistor) are set properly before operating the servo drive.
●Install the external regenerative resistor on an incombustible object such as a
metal.

Electrical Wiring Diagrams
‑16‑
2 Electrical Wiring Diagrams
2.1 Wiring diagram of the Position Control Mode
Figure 2‑1 Wiring diagram of the Position Control Mode

Electrical Wiring Diagrams
‑17‑
Note
●indicates shielded twisted pairs.
●[1] The range of the internal +24 V power supply is 20 V to 28 V, with maximum
operating current being 200 mA.
●[2] DI7 and DI8 are high‑speed DIs that must be used according to their functions
assigned.
●[3] Use the shielded twisted pairs for pulse terminals, with both ends of the shield
connected to PE. Connect GND and signal GND of the host controller properly.
Pins 41, 43, 37 and 39 or 38, 36, 42, and 40 can be used for both low‑speed and
high‑speed pulses.
●[4] Use shielded twisted pairs as frequency‑division output cables and full closed‑
loop input cables, with both ends of the cable shield connected to PE. Connect
GND to the signal ground of the host controller properly.
●[5] The DO power supply (voltage range: 5 V to 24 V) needs to be prepared by
users. The DO terminals support a maximum voltage of 30 VDC and a maximum
current of 50 mA.

Electrical Wiring Diagrams
‑18‑
2.2 Wiring Diagram for Torque Control Mode
Figure 2‑2 Wiring Diagram for Torque Control Mode

Electrical Wiring Diagrams
‑19‑
Note
●indicates shielded twisted pairs.
●[1] The range of the internal +24 V power supply is 20 V to 28 V, with maximum
operating current being 200 mA.
●[2] DI7 and DI8 are high‑speed DIs that must be used according to their functions
assigned.
●[3] The internal +5 V power supply supports a maximum current of 200 mA.
●[4] The DO power supply (voltage range: 5 V to 24 V) needs to be prepared by
users. The DO terminals support a maximum voltage of 30 VDC and a maximum
current of 50 mA.
●[5] Use shielded twisted pairs as frequency‑division output cables and full closed‑
loop input cables, with both ends of the cable shield connected to PE. Connect
GND to the signal ground of the host controller properly.