YASKAWA SI-EM3 User manual

Modbus TCP/IP
YASKAWA AC Drive Option
Technical Manual
MANUAL NO. SIEP C730600 91C
Type: SI-EM3
To properly use the product, read this manual thoroughly and retain
for easy reference, inspection, and maintenance. Ensure the end user
receives this manual.

2YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
Copyright © 2016 YASKAWA ELECTRIC CORPORATION
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any
means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of Yaskawa. No patent
liability is assumed with respect to the use of the information contained herein. Moreover, because Yaskawa is constantly striving to
improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has
been taken in the preparation of this manual. Yaskawa assumes no responsibility for errors or omissions. Neither is any liability
assumed for damages resulting from the use of the information contained in this publication.

YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 3
Table of Contents
1 PREFACE AND SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 RECEIVING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 OPTION COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 RELATED DRIVE PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7 MODBUS TCP/IP MESSAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8 WEB INTERFACE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
10 OPTION INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

4 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
1 Preface and Safety
1 Preface and Safety
YASKAWA Electric supplies component parts for use in a wide variety of industrial applications. The selection and
application of YASKAWA products remain the responsibility of the equipment designer or end user.
YASKAWA accepts no responsibility for the way its products are incorporated into the final system design. Under no
circumstances should any YASKAWA product be incorporated into any product or design as the exclusive or sole safety
control. Without exception, all controls should be designed to detect faults dynamically and fail safely under all
circumstances. All products designed to incorporate a component part manufactured by YASKAWA must be supplied to
the end user with appropriate warnings and instructions as to the safe use and operation of that part. Any warnings
provided by YASKAWA must be promptly provided to the end user. YASKAWA offers an express warranty only as to
the quality of its products in conforming to standards and specifications published in the manual. NO OTHER
WARRANTY, EXPRESS OR IMPLIED, IS OFFERED. YASKAWA assumes no liability for any personal injury,
property damage, losses, or claims arising from misapplication of its products.
Applicable Documentation
The following manuals are available for the SI-EM3 option:
Terms
SI-EM3 Option
YASKAWA AC Drive Option
SI-EM3 Modbus TCP/IP
Installation Manual
Manual No: TOBP C730600 91
This guide is packaged together with the product and contains information necessary to
install the option and set related drive parameters.
YASKAWA AC Drive Option
SI-EM3 Modbus TCP/IP
Technical Manual
Manual No: SIEP C730600 91
(This book)
The technical manual contains detailed information about the option. Access the following
sites to obtain the technical manual:
U.S.: http://www.yaskawa.com
Europe: http://www.yaskawa.eu.com
Japan: http://www.e-mechatronics.com
Other areas: Check the back cover of these manuals.
For questions, contact Yaskawa or a Yaskawa representative.
Drive
YASKAWA AC Drive
Manuals
Drive manuals contain basic installation and wiring information in addition to detailed
parameter setting, fault diagnostic, and maintenance information.
The most recent versions of these manuals are available for download on our documentation
websites:
U.S.: http://www.yaskawa.com
Europe: http://www.yaskawa.eu.com
Japan: http://www.e-mechatronics.com
Other areas: Check the back cover of these manuals.
For questions, contact Yaskawa or a Yaskawa representative.
Note: Indicates supplemental information that is not related to safety messages.
Option: YASKAWA AC Drive Option SI-EM3 Modbus TCP/IP
Drive: • YASKAWA AC Drive 1000-Series (A1000, D1000, R1000, U1000, U1000L, Z1000,
Z1000U)
• YASKAWA AC Drive GA700
• YASKAWA AC Drive GA800
Keypad: • LCD Operator for YASKAWA AC Drive 1000-Series
• LED Operator for YASKAWA AC Drive 1000-Series
• LCD Keypad for YASKAWA AC Drive GA700 and GA800
• LED Keypad for YASKAWA AC Drive GA700 and GA800

1 Preface and Safety
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 5
Registered Trademarks
• Modbus TCP/IP is a trademark of Modbus-IDA.
• All trademarks are the property of their respective owners.
Supplemental Safety Information
Read and understand this manual before installing, operating, or servicing this option. The option must be installed
according to this manual and local codes.
The following conventions are used to indicate safety messages in this manual. Failure to heed these messages could
result in serious or possibly even fatal injury or damage to the products or to related equipment and systems.
 General Safety
DANGER
Indicates a hazardous situation, which, if not avoided, will cause death or serious injury.
WARNING
Indicates a hazardous situation, which, if not avoided, could cause death or serious injury.
CAUTION
Indicates a hazardous situation, which, if not avoided, could cause minor or moderate injury.
NOTICE
Indicates an equipment damage message.
General Precautions
• The diagrams in this section may include options and drives without covers or safety shields to illustrate details. Reinstall covers or shields before
operating any devices. The option should be used according to the instructions described in this manual.
• The diagrams in this manual are provided as examples only and may not pertain to all products covered by this manual.
• The products and specifications described in this manual or the content and presentation of the manual may be changed without notice to improve
the product and/or the manual.
• Contact Yaskawa or a Yaskawa representative and provide the manual number shown on the front cover to order new copies of the manual.
DANGER
Heed the safety messages in this manual.
Failure to comply will cause death or serious injury.
The operating company is responsible for any injuries or equipment damage resulting from failure to heed the warnings
in this manual.
WARNING
Electrical Shock Hazard
Do not attempt to modify or alter the drive or drive circuitry in any way not explained in this manual.
Failure to comply could cause death or serious injury and will void warranty. Yaskawa is not responsible for any
modification of the product made by the user. Do not modify this product.

1 Preface and Safety
6YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
NOTICE
Do not modify the drive or option circuitry.
Failure to comply could result in damage to the drive or option and will void warranty.
Yaskawa is not responsible for any modification of the product made by the user.
Do not expose the drive or the option to halogen group disinfectants. Do not pack the drive or the option in
fumigated or sterilized wooden materials. Do not sterilize the entire package after packing the product.
Failure to comply could damage electrical components in the option.

2 Overview
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 7
2Overview
This option provides a communications connection between the drive and a Modbus TCP/IP network. The option
connects the drive to a Modbus TCP/IP network and facilitates the exchange of data.
This manual explains the handling, installation and specifications of this product.
The option is a communications link to connect industrial devices (such as smart motor controllers, operator interfaces,
and variable frequency drives) as well as control devices (such as programmable controllers and computers) to a
network. The option is a simple, networking solution that reduces the cost and time to wire and install factory automation
devices, while providing interchangeability of like components from multiple vendors.
Install the option/Modbus TCP/IP option on a drive to perform the following functions from a Modbus TCP/IP master
device:
• Operate the drive
• Monitor the drive operation status
• Change drive parameter settings
Compatible Products
The option can be used with the products in Table 1.
Table 1 Compatible Products
Note: 1. Refer to the option package labeling in the field designated “PRG” (four digit number)” to identify the option software version.
2. For Yaskawa customers in the North or South America region:
If your product is not listed in Table 1, refer to the web page below to confirm this manual is correct for your product. The web page
Product Series
<1> Refer to “PRG” on the drive nameplate for the software version number.
<2> Before you install the option on a YASKAWA AC Drive GA700, make sure that the option software version is PRG: 8103 or later.
<3> Before you install the option on a YASKAWA AC Drive GA800, make sure that the option software version is PRG: 8104 or later.
Model(s) Software Version <1>
A1000
CIMR-A2A ≥1020
CIMR-A4A0002 to 4A0675
CIMR-A4A0930 and 4A1200 ≥3015
CIMR-A5A ≥5040
≥1020
D1000 CIMR-D2A0005 to 4A0370 ≥2600
CIMR-D4A0630 ≥3014
R1000 CIMR-R2A03P5 to 4A0300 ≥2102
U1000
CIMR-UA
≥1010
CIMR-UE
CIMR-UP
CIMR-UW
U1000L
CIMR-UL
≥6210
CIMR-UF
CIMR-UR
CIMR-US
Z1000 CIMR-ZA ≥1016
Z1000U
CIMR-ZA
≥6110
CIMR-ZE
CIMR-ZP
CIMR-ZW
GA700
<2> CIPR-GA70 ≥1010
GA800
<3> CIPR-GA80 ≥9010

2 Overview
8YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
provides a list of option manuals by product, and a direct link to download a PDF.
Scan QR code
Or refer to: http://www.yaskawa.com/optionlookup
A1000

3 Receiving
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 9
3 Receiving
After receiving the option package:
1. Make sure that the option is not damaged and no parts are missing. Contact your sales outlet if the option or other parts
appear damaged.
NOTICE: Do not use damaged parts to connect the drive and the option. Failure to comply could damage the drive and option.
2. Confirm that the model number on the option nameplate and the model listed in the purchase order are the same. Refer
to Figure 1 on page 10 for details. Contact the distributor where the option was purchased or contact Yaskawa or a
Yaskawa representative about any problems with the option.
Option Package Contents
Table 2 Option Package Contents
Installation Tools
• A Phillips screwdriver. Phillips screw sizes vary by drive capacity.
• A flat-blade screwdriver (blade depth: 0.4 mm (0.02 in), width: 2.5 mm (0.1 in)).
• A pair of diagonal cutting pliers.
• A small file or medium-grit sandpaper.
Description:
<1> GA700 and GA800 drives do not use the ground wire.
<2> GA700 and GA800 drives use two screws only.
Option Ground
Wire <1>
Screws (M3)
LED Labels
Installation Manual
A1000, D1000,
R1000, U1000,
U1000L,
Z1000U
Z1000 GA700 and
GA800
_
Quantity: 113 <2> 111 1
NS MS
NS
MS
MANUAL

10 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
4 Option Components
4 Option Components
SI-EM3 Option
Figure 1
Figure 1 Option Components
Communication Connector CN1
The communication connector on the option is a modular RJ45 female connector designated CN1.
CN1 is the connection point for a customer supplied male Modbus network communication cable.
Table 3 Male, 8-way Ethernet Modular Connector (Customer Supplied)
A – Option model number F – Ground terminal (FE) and installation hole <2>
B – Connector (CN5) G – Communication connector CN1 (RJ45)
C – Installation hole H – LED (LINK/ACT)
<1>
D–LED(MS) <1> I – LED (10/100) <1>
<2> Connect the provided ground wire during installation. Installation on GA700 and GA800 drives does not require the
ground wire.
E–LED(NS) <1>
<1> Refer to Option LED Display on page 11 for details on the LEDs.
Male Ethernet 8-Way Modular Connector Pin Description
1 (Pair 2) Transmit data (TXD) +
2 (Pair 2) Transmit data (TXD) -
3 (Pair 3) Receive data (RXD) +
4 (Pair 1) Not used
<1>
<1> Not used for 10 Mbps and 100 Mbps networks.
5 (Pair 1) Not used
<1>
6 (Pair 3) Receive data (RXD) -
7 (Pair 4) Not used
<1>
8 (Pair 4) Not used <1>
F
B
G
C
H
I
E D
Underside
A
SI-EM3
A1000

4 Option Components
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 11
Option LED Display
The option has four LEDs:
Bi-color Status LEDs:
• Module status (MS) red/green
• Network status (NS) red/green
Green Ethernet LEDs:
• Network speed-10/100 (MS) green
• Link status and network activity-Link/Act (NS) red/green
Figure 2
Figure 2 Option LED Labels
The operational states of the option LEDs after the power-up diagnostic LED sequence is completed are described in
Tabl e 4. Wait at least 2 seconds for the power-up diagnostic process to complete before verifying the states of the LEDs.
Table 4 Option LED States
Name
<1> Remove the drive front cover to check the status of the LED. Be careful not to touch the main circuit terminals or the control board in the drive.
Indication Operating Status Description
Color Status
MS
– OFF Power supply OFF Power is not being supplied to the drive
Green ON Option operating The option is operating normally
Green Flashing Option initializing The option is configuring an IP address
Red ON Fatal error occurred The option has detected a fatal (unrecoverable) error
Red Flashing Non-fatal error occurred The option has detected a non-fatal (recoverable) error
NS
– OFF Offline or power supply OFF –
Green ON Online communications established The option is online and has established connections
Green Flashing Control connection active The option is online and has an established and active control
connection.
Red ON Communications error (fatal) The option detected a duplicate IP address
10/100
<1>
Green OFF 10 Mbps is established
–
Green ON 100 Mbps is established
LINK/ACT
<1>
Green OFF Link is not established
Green ON Link is established
Green Flashing Link is established and there is
network activity
GA700 and
GA800 Label
A
1000, D1000, R1000,
U1000, U1000L and
Z1000U Label
NS MS
NS
MS
Z1000 Label
A1000

12 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
5 Installation Procedure
5 Installation Procedure
Section Safety
DANGER
Electrical Shock Hazard
Do not inspect, connect, or disconnect any wiring while the drive is energized.
Failure to comply will cause death or serious injury.
Before servicing, disconnect all power to the equipment and wait for at least the time specified on the warning label.
The internal capacitor remains charged even after the drive is de-energized. The charge indicator LED will extinguish
when the DC bus voltage is below 50 Vdc. When all indicators are OFF, measure for unsafe voltages to confirm the
drive is safe.
WARNING
Electrical Shock Hazard
Do not operate equipment with covers removed.
Failure to comply could cause death or serious injury.
The diagrams in this section may include options and drives without covers or safety shields to illustrate details.
Reinstall covers and shields before operating the drive and run the drive according to the instructions described in this
manual.
Do not allow unqualified personnel to perform work on the drive or option.
Failure to comply could cause death or serious injury.
Only authorized personnel familiar with installation, adjustment, and maintenance of AC drives and options may
perform work.
Do not remove covers or touch circuit boards while the drive is energized.
Failure to comply could cause death or serious injury.
Do not use damaged wires, stress the wiring, or damage the wire insulation.
Failure to comply could cause death or serious injury.
Fire Hazard
Tighten all terminal screws to the specified tightening torque.
Loose or overtightened connections could cause erroneous operation and damage to the terminal block or start a fire
and cause death or serious injury.
NOTICE
Damage to Equipment
Observe proper electrostatic discharge (ESD) procedures when handling the option, drive, and circuit boards.
Failure to comply could cause ESD damage to circuitry.
Never connect or disconnect the motor from the drive while the drive is outputting voltage.
Improper equipment sequencing could damage the drive.
Do not connect or operate any equipment with visible damage or missing parts.
Failure to comply could further damage the equipment.
Do not use unshielded wire for control wiring.
Failure to comply may cause electrical interference resulting in poor system performance. Use shielded, twisted-pair
wires and ground the shield to the ground terminal of the drive.

5 Installation Procedure
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 13
Procedures for Installing and Wiring Options on a Drive
Procedures for installing and wiring options differ depending on the drive model.
Refer to Table 5 to check the procedures for installing and wiring options on a drive.
Table 5 Procedures for Installing and Wiring Options on a Drive
Properly connect all pins and connectors on the option and drive.
Failure to comply could prevent proper operation and damage equipment.
Confirm that all connections are correct after installing the option and connecting peripheral devices.
Failure to comply could damage the option.
Product Series Procedures for Installing and Wiring
Options on a Drive Page
A1000 Procedure A 14
D1000 Procedure A 14
R1000 Procedure A 14
U1000 Procedure A 14
U1000L Procedure A 14
Z1000U Procedure A 14
Z1000 Procedure B 18
GA700 Procedure C 22
GA800 Procedure C 22
NOTICE

5 Installation Procedure
14 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
 Procedure A
This section shows the procedure to install and wire the option on a 1000-series drive.
Prepare the Drive for the Option
1. Correctly wire the drive as specified by the manual packaged with the drive.
2. Make sure that the drive functions correctly.
Refer to Figure 3 for an exploded view of the drive with the option and related components for reference in the
installation procedure.
Figure 3
Figure 3 Drive Components with Option
A – Insertion point for CN5 connector J – Option modular connector CN1
B – SI-EM3 option K – Drive grounding terminal (FE)
C – Drive front cover L – Connector CN5-A
D – Keypad M – Connector CN5-B
(Not available for communication
option installation.)
E–LEDlabel
F – Drive terminal cover
G – Removable tabs for wire routing N – Connector CN5-C
(Not available for communication
option installation.)
H – Included screws
I – Ground wire
F
H
L
M
N
K
I
BC
D
E
A
G
NS MS
J
A1000

5 Installation Procedure
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 15
Install the Option
Remove the front covers of the drive before you install the option.
Refer to the drive manual for information about how to remove the front covers. Different drive sizes have different
cover removal procedures.
You can only install this option into the CN5-A connector on the drive control board.
DANGER! Electrical Shock Hazard. Do not inspect, connect, or disconnect any wiring while the drive is energized. Failure to comply
will cause death or serious injury. Before servicing, disconnect all power to the equipment and wait for at least the time specified on the
warning label. The internal capacitor remains charged even after the drive is de-energized. The charge indicator LED will extinguish
when the DC bus voltage is below 50 Vdc. When all indicators are OFF, measure for unsafe voltages to confirm the drive is safe.
1. Shut off power to the drive, wait the appropriate amount of time for voltage to dissipate, then remove the keypad
(D) and front covers (C, F).
Refer to the manual packaged with the drive for details on keypad and cover removal.
NOTICE: Damage to Equipment. Observe proper electrostatic discharge (ESD) procedures when handling the option, drive, and
circuit boards. Failure to comply could cause ESD damage to circuitry.
Figure 4
Figure 4 Remove the Keypad, Front Cover, and Terminal Cover
2. Affix the LED label (E) in the appropriate position on the drive front cover (C).
Figure 5
Figure 5 Affix the LED Label
C
D
F
A1000
NS MS
C
E
A1000

5 Installation Procedure
16 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
3. Insert the option card (B) into the CN5-A (L) connector on the drive and fasten it into place using one of the
included screws (H). Tighten the screw to 0.5 to 0.6 Nm (4.4 to 5.3 inlb).
Figure 6
Figure 6 Insert the Option
4. Connect one end of the ground wire (I) to the ground terminal (K) using one of the remaining provided screws
(H). Connect the other end of the ground wire (I) to the remaining ground terminal and installation hole on the
option (B) using the last remaining provided screw (H). Tighten both screws to 0.5 to 0.6 Nm (4.4 to 5.3 inlb).
Figure 7
Figure 7 Connect the Ground Wire
Note: The drive has only two ground terminal screw holes (K). Two ground wires should share the same ground terminal when
connecting three options.
L
H
B
A1000
H
I
K
B
A1000

5 Installation Procedure
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 17
5. Route the option wiring inside the enclosure as shown in Figure 8-B. Take proper precautions so that the front
covers will easily fit back onto the drive.
Users may also choose to route the option wiring through openings on the front cover of some models. Remove
the perforated tabs on the left side of the front cover as shown in Figure 8-A to create the necessary openings
on these models.
Refer to the Peripheral Devices & Options section of the drive instruction manual for more information.
Note: Separate communication cables from main circuit wiring and other electrical lines to avoid potential sources of electrical
interference.
Figure 8
Figure 8 Wire Routing Examples
6. Firmly connect the Ethernet communication cable to the option modular connector (CN1).
Install Modbus communications cables apart from main-circuit wiring and other electrical and power lines.
Ensure the cable end is firmly connected (see Figure 22). Refer to Communication Cable Specifications on
page 25 for details.
7. Reattach the drive front covers (C, F) and the keypad (D).
NOTICE: Do not pinch cables between the front covers and the drive. Failure to comply could cause erroneous operation.
Figure 9
Figure 9 Replace the Front Covers and Keypad
8. Set drive parameters in Table 6 for correct option performance.
A – Route wires through the openings provided
on the left side of the front cover.
<1>
<1> The drive will not meet Enclosed wall-mounted type (IP20/UL Type 1) requirements if wiring is exposed outside the enclosure.
B – Use the open space provided inside the drive
to route option wiring.
B
A
A1000
F
C
D
A1000

5 Installation Procedure
18 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
 Procedure B
This section shows the procedure to install and wire the option on a Z1000 Drive.
Prepare the Drive for the Option
Prior to installing the option, wire the drive, make necessary connections to the drive terminals, and verify that the drive
functions normally without the option installed. Refer to the User Manual packaged with the drive for information on
wiring and connecting the drive.
Figure 10 shows an exploded view of the drive with the option and related components for reference.
Figure 10
Figure 10 Drive Components with Option
A – Drive grounding terminal (FE) F – LED label
B – SI-EM3 option G – Ground wire
C – Mounting screw H – Terminal block CN1
D – Drive front cover I – Insert connector CN5 here
E – HOA keypad J – Connector CN5
F
J
I
G
H
AB
D
E
C
NS
MS
A1000

5 Installation Procedure
YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual 19
Installing the Option
Remove the front cover of the drive before you install the option.
Refer to the drive manual for information about how to remove the front covers. Different drive sizes have different
cover removal procedures.
DANGER! Electrical Shock Hazard. Do not inspect, connect, or disconnect any wiring while the power is on. Before wiring or
servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the power supply is turned off. The
charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait for at least the time
specified on the warning label; after all indicators are OFF, measure the DC bus voltage level to confirm it has reached a safe level.
Failure to comply could result in death or serious personal injury.
1. Shut off power to the drive, wait the appropriate amount of time for voltage to dissipate, then remove the HOA
keypad (E) and front cover (D).
NOTICE: Damage to Equipment. Observe proper electrostatic discharge procedures (ESD) when handling the option, drive, and
circuit boards. Failure to comply may result in ESD damage to circuitry.
Figure 11
Figure 11 Remove the Front Cover and HOA Keypad
2. With the front cover and HOA keypad removed, apply the LED label (F) in the appropriate position on the drive
front cover (D).
Figure 12
Figure 12 Apply the LED Label
D
E
A1000
F
D
NS
MS
A1000

5 Installation Procedure
20 YASKAWA ELECTRIC SIEP C730600 91C YASKAWA AC Drive Option SI-EM3 Technical Manual
3. Make sure the screws on the left and right sides of the option terminal block (H) are tightened with a tightening
torque of 0.5 to 0.6 Nm (4.4 to 5.3 inlb), then insert the option (B) into the CN5 connector (J) located on the
drive and fasten it using one of the included screws (C).
Figure 13
Figure 13 Insert the Option
4. Connect the ground wire (G) to the ground terminal (A) using one of the remaining provided screws (C). Connect
the other end of the ground wire (G) to the ground terminal and installation hole on the option using the last
remaining provided screw (C) and tighten both screws to 0.5 to 0.6 Nm (4.4 to 5.3 inlb).
Figure 14
Figure 14 Connecting the Ground Wire
5. Wire the communication cables.
Note: Separate communication cables from main circuit wiring and other electrical lines.
J
H
B
C
A1000
G
C
A
A1000