Inovance MD520 Series User manual

‑1‑
Preface
Preface
About This Guide
The MD520 series AC drive is a general‑purpose high‑performance current vector AC
drive. It is used to control and adjust the speed and torque of three‑phase AC
asynchronous motors and three‑phase AC permanent magnet motors. It is applicable
to various automation equipment and industries such as textiles, papermaking, wire
drawing, machine tools, packaging, food, fans, and water pumps.
This guide describes the composition, technical specifications, components,
dimensions, options (including mounting accessories, cables, and peripheral
electrical components), and extension cards of the MD520 series AC drive, as well as
routine inspection and maintenance, compliance, and standards of the AC drive.
More Documents
Document Name Document
No. Description
MD520 Series General‑
Purpose AC Drive Quick
Installation and
Commissioning Guide
19011712
Describes the installation, wiring,
commissioning, troubleshooting, parameters,
and fault codes of the AC drive.
MD520 Series General‑
Purpose AC Drive Hardware
Guide
19011713
Describes the composition, technical
specifications, components, dimensions,
options (including mounting accessories,
cables, and peripheral electrical components),
and extension cards of the MD520 series AC
drive, as well as routine inspection and
maintenance, compliance, and standards of
the AC drive.
MD520 Series General‑
Purpose AC Drive
Installation Guide
19011714
Describes the installation dimensions, space
design, specific installation steps, wiring
requirements, routing requirements, and
option installation requirements of the AC
drive, as well as common EMC troubleshooting
suggestions.
MD520 Series General‑
Purpose AC Drive
Commissioning Guide
19011715
Describes the software tools, processes, and
specific steps of debugging and
commissioning of the AC drive, as well as
troubleshooting, fault codes, and parameters
related to the AC drive.
MD520 Series General‑
Purpose AC Drive
Communication Guide
19011716
Describes the communication modes,
networking, and communication settings of
the AC drive.
MD520 Series General‑
Purpose AC Drive Function
Guide
19011717
Describes the function application,
communication, fault codes, and parameters
of the AC drive.

‑2‑
Preface
Revision History
Date Version Description
2022‑01 A00 First release
How to Obtain
This guide is not delivered with the AC drive, but an electronic PDF version is
available. To obtain it,
log in to the official website of Inovance (
www.inovance.com
), choose Support >
Download, search by keywords and download the file.

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Preface.............................................................................. 1
Product Model List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1 Preparations for Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.1 Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.2 Site Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.2.1 Installation Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.2.2 Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.2.3 Direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.2.4 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.3 Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.3.1 Tools for Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.3.2 Tools for Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.4.1 Through‑Hole Mounting Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.4.2 Grounding Bracket of Cable Shield. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.4.3 Bottom Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1.4.4 Guide Rail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1.4.5 Installing the UVW Output Copper Busbar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2 Overall Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.1 Dimensions of T1 to T9 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.2 Dimensions of T10 to T12 Models (Without AC Output Reactor) . . . . . . . . . . . . . . . . . . 41
2.3 Dimensions of T10 to T12 Models (with AC Output Reactor). . . . . . . . . . . . . . . . . . . . . . 42
3 Unpacking and Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.2 Transportation Before Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.3 Package Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.4 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.5 Transportation and Hoisting After Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4 Mechanical Installation (T1 to T9 Models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.1 Installation Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2 Cabinet Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2.2 Cabinet Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2.3 Mounting Backplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.2.4 Cabinet Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table of Contents

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4.3 Pre‑installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.4 Backplate Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.5 Through‑Hole Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.6 Removing and Installing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.6.1 Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.6.2 Installing the Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
4.7 Installing the Grounding Bracket of Cable Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5 Mechanical Installation (T10 to T12 Models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.1 Installation Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.2 Pre‑installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.3 Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
5.4 Installation in a Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.5 Removing and Installing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5.5.1 Removing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5.5.2 Installing the Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
6 Checklist of Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
7 Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.1 Electrical Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.2 Inspection Before Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.3 Main Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.3.1 Main Circuit Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.3.2 Terminal Dimensions and Cable Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
7.3.3 Wiring of Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
7.3.4 Requirements on Wiring of the Main Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
7.3.5 Protection Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
7.4 Control Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
7.4.1 Control Circuit Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
7.4.2 Wiring of Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.4.3 Circuit Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
7.4.4 Cable Routing Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
7.4.5 Cable Routing Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
7.5 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
7.5.1 Grounding Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
7.5.2 Grounding One AC Drive Alone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
7.5.3 Grounding Multiple AC Drives Installed Side by Side . . . . . . . . . . . . . . . . . . . . . . . . 133
7.5.4 Grounding the Cabinet System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
7.6 Communication Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
7.6.1 RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
7.6.2 CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
7.6.3 EtherCAT Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Table of Contents

7.6.4 PROFINET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
7.7 Inspection After Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
8 Requirements on Installation of Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
8.1 AC Input Reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
8.2 Output Reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
8.3 Fuses, Contactors, and Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
8.4 EMC Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
8.5 Ferrite Core and Ferrite Clamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
9 Troubleshooting for Common EMC Interference Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 146
9.1 Leakage Current Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
9.2 Earth Leakage Circuit Breaker Malfunction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
9.3 Harmonic Suppression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
9.4 Control Circuit Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
9.4.1 High‑Speed Pulse Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
9.4.2 Common I/O Signal Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
9.5 Communication Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
9.5.1 RS485 and CAN Communication Interference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
9.5.2 EtherCAT and PROFINET Communication Interference. . . . . . . . . . . . . . . . . . . . . . 150
9.6 Encoder Feedback Signal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Table of Contents

‑6‑
Product Model List
Product Model List
The following table lists mapping between the product model and structure.
Table –1 Mapping between product model and structure
Structure Model (Three Phase 380–480 V) Model (Three Phase 200–240
V)
Model (Single Phase 200‑240
V)
T1 MD520‑4T0.4B(S)
MD520‑4T0.7B(S)
MD520‑4T1.1B(S)
MD520‑4T1.5B(S)
MD520‑4T2.2B(S)
MD520‑4T3.0B(S)
MD520‑2T0.4B(S)
MD520‑2T0.7B(S)
MD520‑2T1.1B(S)
MD520‑2T1.5B(S)
‑
T2 MD520‑4T3.7B(S)
MD520‑4T5.5B(S)
MD520‑2T2.2B(S)
MD520‑2T3.7B(S)
MD520‑2S0.4B(S)
MD520‑2S0.7B(S)
MD520‑2S1.5B(S)
MD520‑2S2.2B(S)
T3 MD520‑4T7.5B(S)
MD520‑4T11B(S)
MD520‑2T5.5B(S) ‑
T4 MD520‑4T15B(S) MD520‑2T7.5B(S) ‑
T5 MD520‑4T18.5(B)(S)(‑T)
MD520‑4T22(B)(S)(‑T)
MD520‑2T11(B)(S)(‑T) ‑
T6 MD520‑4T30(B)(S)
MD520‑4T37(B)(S)
MD520‑2T15(B)(S)
MD520‑2T18.5(B)(S)
‑
T7 MD520‑4T45(B)(S)
MD520‑4T55(B)(S)
MD520‑2T22(B)(S)
MD520‑2T30(B)(S)
‑
T8 MD520‑4T75(B)(S)
MD520‑4T90(S)
MD520‑4T110(S)
MD520‑2T37(B)(S)
MD520‑2T45(S)
MD520‑2T55(S)
‑
T9 MD520‑4T132(S)
MD520‑4T160(S)
MD520‑2T75(S) ‑
T10 MD520‑4T200(S)(‑L)
MD520‑4T220(S)(‑L)
MD520‑2T90(S)
MD520‑2T110(S)
‑
T11 MD520‑4T250(S)(‑L)
MD520‑4T280(S)(‑L)
MD520‑2T132(S) ‑
T12 MD520‑4T315(S)(‑L)
MD520‑4T355(S)(‑L)
MD520‑4T400(S)(‑L)
MD520‑2T160(S)
MD520‑2T200(S)
‑
Note:
●(B): with the braking unit
●(S): with the safe torque off (STO) function
●(‑T): with the DC reactor
●(‑L): with the AC output reactor

‑7‑
Safety Precautions
Safety Precautions
Safety Disclaimer
●This chapter provides essential safety instructions for proper use of the AC drive.
Before operating the AC drive, read through the user guide and comprehend all
the safety instructions. Failure to comply with the safety instructions may result in
damage to equipment, severe injury, or even death.
●"CAUTION", "WARNING", and "DANGER" messages in the guide are supplementary
only and do not cover all safety precautions.
●Use the AC drive according to the designated environment requirements.
Malfunction or damage caused by improper use is not covered by warranty.
●Inovance shall not be held liable for any safety accident or property loss caused by
noncompliance with this guide or improper use of the AC drive.
Safety Categories and Definitions
indicates that failure to comply with the notice will result in severe
injury or even death.
indicates that failure to comply with the notice may result in severe
injury or even death.
indicates that failure to comply with the notice may result in minor
injury or damage to equipment.
Safety Precautions
●In some product drawings, covers or protective guards of the product are removed
to show more details. Be sure to install the covers and protective guards before
using the product and operate it in accordance with the instructions.
●Product drawings in this guide are for reference only and may be slightly different
from the product you ordered.
Unpacking
●Do not install the product if you notice damage, rust, or signs of use on the product or its
accessories upon unpacking.
●Do not install the product if you notice water seepage or component missing or damage
upon unpacking.
●Do not install the product if the packing list does not match the product you received.

‑8‑
Safety Precautions
●Before unpacking, check the package for damage, water seepage, damp, and
deformation.
●Unpack the package by following the unpacking sequence. Do not strike the package
with force.
●When unpacking, check the surface of the product and accessories for damage, rust, and
scratches.
●Check the equipment, accessories, and materials in the package against the packing list.
Storage and Transportation
●Use specialized hoisting equipment and qualified staff to move large‑scale or heavy
equipment. Failure to comply may result in injury or damage to the product.
●Before hoisting the product, make sure that the front cover, terminal blocks, and similar
parts of the product are well secured with screws. Failure to comply may cause the parts
to fall off and result in injury or damage to the product.
●Never stand or stay below the product when it is lifted by hoisting equipment.
●When lifting the product with a steel wire rope, lift it steadily at a constant rate to
prevent it from vibration, shock, and turnover. Do not keep the product lifted for a long
time. Failure to comply may result in injury or damage to the product.
●Handle the product with care and mind your steps. Failure to comply may result in injury
or damage to the product.
●When handling the product with bare hands, hold the product casing firmly with care to
prevent parts from falling off. Failure to comply may result in injury or damage to the
product.
●Store and transport the product in strict accordance with the requirements of storage
and transportation conditions. Failure to comply may result in damage to the product.
●Do not store or transport the product in environments with water splash, rain, direct
sunlight, strong electric field, strong magnetic field, and strong vibration.
●Do not store the product for over three months. Take stricter prevention measures and
perform necessary inspection during prolonged storage.
●Pack the product properly before road transport. For long‑distance transportation, use a
sealed box.
●Never transport the product together with equipment or materials that may damage or
have negative impacts on it.
Installation
●Installation must be carried out only by qualified technicians who have received
necessary electrical training and understood enough electrical knowledge.

‑9‑
Safety Precautions
●Read through the safety precautions and user guide before installation.
●Do not install the product in places with strong electric or magnetic fields.
●Before installation, make sure that the installation position is mechanically strong
enough to bear the weight of the product. Failure to comply may result in mechanical
hazards.
●Do not wear loose clothes or accessories during installation. Failure to comply may
result in electric shock.
●When the product is installed in an enclosed environment (such as a cabinet or a rack),
ensure adequate cooling of the environment by using cooling devices (such as a fan or
an air conditioner). Failure to comply may result in product over‑temperature or a fire.
●Do not modify the product.
●Do not fiddle with the bolts used to fix parts and components or the bolts marked in red.
●When the product is installed in a cabinet or terminal equipment, make sure that the
enclosure of the cabinet or terminal equipment provides adequate fire prevention,
electrical protection, and mechanical protection, and meets the IP rating requirements
specified by relevant IEC standards and local laws and regulations.
●Before installing equipment with strong electromagnetic interference, such as a
transformer, install an electromagnetic shielding device for the product to prevent
malfunctions.
●Install the product on a flame‑retardant object such as metal, and keep combustible
materials away from the product. Failure to comply may result in a fire.
●Cover the top of the product with cloth or paper during installation to prevent foreign
objects such as metal chippings, oil, and water from falling into the product and causing
faults. After installation, remove the cloth or paper to prevent over‑temperature caused
by poor ventilation due to blocked ventilation holes.
●Resonance may occur when a machine supposed to run at a constant speed is running
at a variable speed. In this case, place anti‑vibration rubber under the motor frame or
use the vibration suppression function to reduce resonance.
Wiring
●Never allow non‑qualified personnel to install, wire, inspect or maintain the equipment
or replace any parts of the equipment.
●Before wiring, cut off all equipment power supplies, and wait at least a period of time
specified on the product warning label before further operations because residual
voltage still exists after power‑off. Measure the DC voltage on the main circuit to ensure
a safe voltage range. Failure to comply may result in electric shock.
●Do not carry out wiring, remove the product casing, or touch the circuit board before
power is cut off. Failure to comply may result in electric shock.
●Make sure that the product and related equipment are properly grounded. Failure to
comply may result in electric shock.

‑10‑
Safety Precautions
●Never connect the input power cable to output terminals of the product or equipment.
Failure to comply may result in damage to equipment or even a fire.
●When connecting a drive with a motor, ensure consistency of terminal phase sequences
between the drive and the motor to prevent reverse motor rotation.
●Use cables with required diameter and shield. Properly ground one end of the shield if a
shielded cable is used.
●Tighten terminal screws using the tightening torque specified in this document.
Insufficient or excessive tightening torque may result in over‑temperature or damage to
connecting parts, which may lead to a fire.
●After wiring, make sure that all cables are correctly connected, and there are no dropped
screws, gaskets, or exposed cables inside the product. Failure to comply may result in
electric shock or damage to the product.
●During wiring, follow the electrostatic discharge (ESD) procedures and wear antistatic
wrist straps. Failure to comply may result in damage to the product or its circuits.
●Use shielded twisted pair cables for the control circuit. Connect the shield to the
grounding terminal of the product. Failure to comply may result in product malfunction.
Power-on
●Before power‑on, make sure that the product is properly installed, the wiring is secure,
and the motor can restart.
●Before power‑on, make sure that the power supply meets requirements. Failure to
comply may result in damage to the product or even fire.
●After power‑on, do not open the cabinet door or protective cover, touch any wiring
terminals, or disassemble any units or parts of the product. Failure to comply may result
in electric shock.
●After wiring and parameter setting, carry out a trial run to ensure proper functioning of
the product. Failure to comply may result in injury or damage to equipment.
●Before power‑on, make sure that the voltage of the power supply matches the rated
voltage of the product. Using an improper voltage may result in a fire.
●Before power‑on, make sure that no one is near the product, motor, or machine. Failure
to comply may result in injury or even death.
Operation
●Never allow non‑qualified personnel to operate the product. Failure to comply may
result in injury or even death.
●During operation, do not touch any wiring terminals or disassemble any units or parts of
the product. Failure to comply may result in electric shock.

‑11‑
Safety Precautions
●Do not touch the housing, fan, or resistor of the equipment to check temperature.
Failure to comply may result in burns.
●During operation, prevent metal and other foreign objects from falling into the
equipment. Failure to comply may result in fire or damage to the product.
Maintenance
●Never allow non‑qualified personnel to install, wire, inspect or maintain the equipment
or replace any parts of the equipment.
●Never carry out maintenance when power is on. Failure to comply may result in electric
shock.
●Before maintenance, cut off all equipment power supplies and wait at least a period of
time specified on the product warning label.
●In the case of an PM motor, do not touch motor terminals because an induced voltage is
generated on the motor terminals due to the rotation of the motor even after power cut‑
off. Failure to comply may result in electric shock.
●Carry out daily and periodic inspection and maintenance on the equipment according to
maintenance requirements and retain a maintenance record.
Repair
●Never allow non‑qualified personnel to install, wire, inspect or maintain the equipment
or replace any parts of the equipment.
●Do not repair the equipment when power is on. Failure to comply may result in electric
shock.
●Before inspection or repair, cut off all equipment power supplies and wait at least a
period of time specified on the product warning label.
●Require for repair services according to the product warranty agreement.
●When the fuse is blown or the circuit breaker or earth leakage current breaker (ELCB)
trips, wait at least a period of time specified on the product warning label before power‑
on or further operations. Failure to comply may result in damage to equipment, injury,
or even death.
●When the equipment fails or is damaged, arrange for qualified technicians to
troubleshoot and repair the equipment in accordance with the maintenance
instructions and retain a maintenance record.
●Replace quick‑wear parts of the product according to the replacement instructions.
●Do not use damaged equipment. Failure to comply may result in worse damage, injury,
or even death.
●After replacing the equipment, make sure to re‑check wiring and set parameters.

‑12‑
Safety Precautions
Disposal
●Dispose of retired equipment in accordance with local regulations and standards.
Failure to comply may result in property damage, injury, or even death.
●Recycle retired equipment in accordance with waste disposal standards of the industry
to avoid environmental pollution.
Safety Signs
For safe operations, observe the safety signs on the equipment. Do not stain or
remove the safety signs. See the following table for descriptions of the safety signs.
Safety Sign Description
●Read through the safety instructions before operating the product.
Failure to comply may result in damage to the product, injury, or even
death.
●Do not touch terminals or remove the cover when power is on or
within 10 minutes after power is cut off. Failure to comply may result
in electric shock.

Preparations for Installation
‑13‑
1 Preparations for Installation
1.1 Flowcharts
T1 to T9 models
Figure 1‑1 General installation process (T1 to T9 models)

Preparations for Installation
‑14‑
T10 to T12 models
Figure 1‑2 General installation process (T10 to T12 models)

Preparations for Installation
‑15‑
1.2 Site Inspection
1.2.1 Installation Environment
To maximize performance and ensure long service life of the drive, install the drive in
an environment specified as follows.
Table 1–1 Environment requirements
Item Requirement
Installation location Indoor
Grid overvoltage Overvoltage category (OVC) III
Temperature Installation/Operating temperature: –10°C to +50°C. When the
temperature ranges from –10°C to +40°C, no derating is required.
For temperature above 40°C, derate 1.5% for every additional 1°C.
Storage/Transportation temperature: –20°C to +60°C
●For better reliability, use the AC drive in places without
sharp temperature changes.
●When installing the AC drive in an enclosed cabinet, use the
cooling fan or air conditioner to keep the incoming air
temperature below 50°C. Failure to comply may result in
over‑temperature of the AC drive or even a fire.
●Install the AC drive on a flame‑retardant surface, and ensure
that sufficient space is left around it for efficient heat
dissipation.
●Avoid freezing the AC drive.
Humidity < 95% RH, without condensation
Environment Pollution degree 2 or below
Install the AC drive to a place meeting the following conditions:
●Free of direct sunlight, dust, corrosive gas, combustible or
explosive gas, oil mist, water vapor, drip, or salt
●Insusceptible to vibration (away from equipment that may
generate strong vibration, such as a punch press)
●No foreign objects such as metal powder, oil, and water
enter the AC drive.
●Free of radioactive materials, combustible materials, and
hazardous gas and liquid, and salt corrosion
●Away from combustible materials such as wood
Altitude ●No derating is required for altitudes equal to or below 1000
m.
●For altitudes above 1000 m, derate 1% for every additional
100 m.
0.4–3 kW: The maximum altitude is 2000 m. For altitudes above
2000 m, contact Inovance. Above 3 kW: The maximum altitude is
3000 m. For altitudes above 3000 m, contact Inovance.
Vibration resistance ●For transportation with packages: compliant with Class 2M3
requirements in EN 60721‑3‑2
●For installation without packages: compliant with ISTA 1H

Preparations for Installation
‑16‑
1.2.2 Clearance
Reserve sufficient clearance as appropriate to the power rating of the AC drive.
T1 to T9 models
●Installing one alone
Figure 1‑3 Clearance for installation of one AC drive (T1 to T9 models)
Table 1–2 Installation clearance
Power Rating Clearance (mm)
0.4 kW to 15 kW A1 ≥ 10 B1 ≥ 100 C1 ≥ 40
18.5 kW to 22 kW A1 ≥ 10 B1 ≥ 200 C1 ≥ 40
30 kW to 37 kW A1 ≥ 50 B1 ≥ 200 C1 ≥ 40
45 kW to 160 kW A1 ≥ 50 B1 ≥ 300 C1 ≥ 40
●Installing side by side
The AC drive dissipates heat upward. When multiple AC drives are required to
work together, install them side by side. Keep their tops level with each other,
especially for those of different sizes.

Preparations for Installation
‑17‑
Figure 1‑4 Installing multiple AC drives (T1 to T9 models) side by side
Table 1–3 Installation clearance
Power Rating Clearance (mm)
0.4 kW to 15 kW A1 ≥ 10
18.5 kW to 22 kW A1 ≥ 10
30 kW to 37 kW A1 ≥ 50
45 kW to 160 kW A1 ≥ 50
●Installing one above another
Where an AC drive needs to be installed above another, the heat generated by the
lower AC drive may act on the upper one, causing over‑temperature or overload of
the upper one. In this case, install a heat insulation baffle, as shown in "
Figure 1–5
Installing one above another
" on page 18 .

Preparations for Installation
‑18‑
Figure 1‑5 Installing one above another
T10 to T12 models
Figure 1‑6 Installation clearance

Preparations for Installation
‑19‑
Table 1–4 Installation clearance
Power Rating Clearance (mm)
200 kW to 400
kW A2 ≥ 10 B2 ≥ 250 C2 ≥ 20 D2 ≥ 20
Note
T10 to T12 models can only be installed individually inside the cabinet. For installation
needs, contact Inovance.
1.2.3 Direction
Install the AC drive upright only, as shown in " Figure 1–8 " on page 19 .
Avoid stress on any side of the AC drive or placing it on an inclined surface. The AC
drive is large and heavy (close to 200 kg). If the inclination exceeds 5°, it may topple.
Figure 1‑7 Installation direction (T1 to T9 models)
Figure 1‑8 Installation direction (T10 to T12 models)