Hitachi SJ/L-EN Instruction Manual

SJ/L-EN Ethernet
Communications Module
Instruction Manual

• SJ100 Series

• L100 Series

• SJ200 Series

• L200 Series

NOTE: REFER ALSO TO THE PERTINENT INVERTER INSTRUCTION MANUAL

Manual Number: HAL1052

December 2005

Hitachi America, Ltd.

After reading this manual,

keep it handy for future reference.

NOTES:

Table of Contents

Table of Contents

Table of Contents................................................................................................................... 3

Chapter 1 – General Description.......................................................................................... 5

Chapter 2 – Installation and Wiring...................................................................................... 9

Chapter 3 – Configuration................................................................................................... 13

Chapter 4 – Operation......................................................................................................... 17

Chapter 5 – Troubleshooting.............................................................................................. 19

Appendix – Parameter List ................................................................................................. 20

Index..................................................................................................................................... 33

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NOTES:

Table of Contents

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Chapter1

Chapter 1 – General Description

The SJ/L-EN module is an Ethernet communication interface for the Hitachi SJ200, L200, SJ100 and L100
series of AC Variable Frequency Inverters. The module is mounted externally to the inverter.

The SJ/L-EN uses the open MODBUS/TCP communication protocol. It utilizes a 10Base-T physical interface
with a 10 Mbps data transfer rate. Even though the board uses the MODBUS/TCP, this does not necessarily
mean that all MODBUS services and functions are supported. Detailed description of the available functionality
is provided in Chapter 4 of this manual. The board will act as a MODBUS/TCP slave that can be read from and
written to over the Ethernet network from a MODBUS/TCP master device. It will not initiate communication
with other devices on the network. It will only respond to requests from a master device. The SJ/L-EN will
allow a user to control the operation of the inverter, monitor its operation, and modify parameters.

Before using this product, please read this manual and the relevant inverter manual, and be sure to follow all
safety precautions noted therein. After unpacking the SJ/L-EN board, carefully inspect it for any defect or
damage, and be sure all parts are present.

Carton Contents

(1) SJ/L-EN Ethernet Communication Module
(1) 2 ft. RJ11 Male/Male Cable to connect inverter to SJ/L-EN
(1) DIN-rail SNAP-TRACK™
(2) DIN-rail mounting clips for above
(1) CD-ROM containing this manual (pdf) and NetEdit3 software

WARRANTY

The warranty period under normal installation and handling conditions shall be eighteen (18) months
from the date of purchase, or twelve (12) months from the date of installation, whichever occurs first.
The warranty shall cover repair or replacement, at Hitachi’s sole discretion, of the SJ/L-EN Module.

Service in the following cases, even within the warranty period, shall be to the customers account:

1. Malfunction or damage caused by misuse, modification or unauthorized repair.

2. Malfunction or damage caused by mishandling, dropping, etc., after delivery.

3. Malfunction or damage caused by fire, earthquake, flood, lightning, abnormal input voltage,

contamination, or other natural disasters.

If service is required for the product at your worksite, all expenses associated with field repair are the
purchaser’s responsibility. This warranty only covers service at Hitachi designated service facilities.

If making a warranty claims in reference to the above, please contact the distributor from whom you
purchased the SJ/L-EN, and provide the model number, purchase date, installation date, and description
of damage or missing components.

*SNAP-TRACK is a trademark of TYCO Electronics.

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SAFETY PRECAUTIONS

HIGH VOLTAGE: This symbol indicates high voltage. It calls your attention to items or operations
that could be dangerous to you and other persons operating this equipment. Read the message and
follow the instructions carefully.

WARNING: Indicates a potentially hazardous situation that, if not avoided, can result in serious
injury or death.

CAUTION: Indicates a potentially hazardous situation that, if not avoided, can result in minor to
moderate injury, or serious damage to the product. The situation described in the CAUTION may, if
not avoided, lead to serious results. Important safety measures are described in CAUTION (as well as
WARNING), so be sure to observe them.

HIGH VOLTAGE: Motor control equipment and electronic controllers are connected to hazardous
line voltages. When servicing drives and electronic controllers, there may be exposed components
with housings or protrusions at or above line potential. Extreme care should be taken to protect
against shock. Stand on an insulating pad and make it a habit to use only one hand when checking
components. Always work with another person in case an emergency occurs. Disconnect power
before checking controllers or performing maintenance. Be sure equipment is properly grounded.
Wear safety glasses whenever working on electronic controllers or rotating machinery.

WARNING: This equipment should be installed, adjusted, and serviced by qualified electrical
maintenance personnel familiar with the construction and operation of the equipment and the hazards
involved. Failure to observe this precaution could result in bodily injury.

WARNING: HAZARD OF ELECTRICAL SHOCK. DISCONNECT INCOMING POWER
BEFORE WORKING ON THIS CONTROL.

WARNING: Wait at least five (5) minutes after turning OFF the input power supply before
performing maintenance or an inspection. Otherwise, there is the danger of electric shock.

WARNING: Do not install or remove the SJ/L-EN Ethernet module while the inverter is energized.
Otherwise there is the danger of unpredictable inverter operation.

WARNING: Never modify the unit. Otherwise, there is a danger improper and/or unpredictable
inverter operation.

CAUTION: Be sure to secure the SJ/L-EN module with the supplied mounting screws. Make sure all
connections are made securely; otherwise there is danger of a loose connection and unpredictable
operation.

CAUTION: Alarm connection may contain hazardous live voltage even when inverter is
disconnected. When removing the front cover for maintenance or inspection, confirm that incoming
power for alarm connection is completely disconnected.

Chapter1

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Chapter1

CAUTION: Be sure not to touch the surface or terminals of the SJ/L-EN Ethernet module while the
inverter is energized; otherwise there is the danger of electric shock.

CAUTION: The software lock modes described in the inverter manuals are NOT supported via the
SJ/L-EN module. This means that network commands can bypass any software lock settings
configured via the inverter keypad. It is incumbent on the user to make sure no safety lockouts are
violated through network commands.

CAUTION: When configuring parameters with the standard keypad, the inverter checks for and
inhibits invalid parameter combinations when the STR key is pressed. The SJ/L-EN bypasses this
check, so it is incumbent on the user to make sure invalid configuration parameters or combinations
are not sent through network commands. Otherwise undesirable inverter behavior may occur.

CAUTION: Certain parameter data ranges vary depending on model and capacity. The SJ/L-EN does
NOT check to make sure these data are within range. It is incumbent on the user to make sure data for
these parameters is within range for the specific model and rating. These parameters are noted in the
parameter tables in the Appendix. Otherwise undesirable inverter behavior may occur.

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NOTES::

Chapter1

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Chapter2

Chapter 2 – Installation and Wiring

Orientation to Product Features

Figure 2-1 below shows the physical layout of the SJ/L-EN Ethernet module. In particular, note the location of
status LEDs and DIP-switches.

RTS LED

RJ1 1

Jack

DIP

Switches

Wiring Terminals

Power Alm Rly

+24V– GNDC CM NC NO

Figure 2-1

SJ/L-EN Layout

The pin-out for the RJ45 connector is as follows: The pin-out for the RJ11 connector is as follows:

1. TX Data +

2. TX Data –

3. RX Data +

4. NC

5. NC

8 7 6 5 4 3 2 1

6. RX Data –

7. NC

8. NC

Figure 2-2

SJ/L-EN RJ45 Pinouts

RXD LEDTXD LED

RJ45

Jack

STATUS LEDs

654321

Figure 2-3

SJ/L-EN RJ11 Pinouts

• STATUS

• LINK

• ACTIVITY

• ERROR

1. RX Data +

2. RX Data –

3. GND

4. TX Data +

5. TX Data –

6. GND

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Chapter2

Installing the Module

Gently push the SJ/L-EN board into the supplied piece of SNAP-TRACK until it is securely seated. If mounting
the SJ/L-EN on a DIN-Rail, attach the two DIN-Rail Clips to the back of the SNAP-TRACK. The assembly can
then be affixed to a DIN rail using the clips. Otherwise, the SNAP-TRACK can be affixed directly to a flat
surface using double-sided tape, with screws, or other mounting method of your choice.

Make sure the inverter is powered down. Connect the SJ/L-EN to the inverter using the 2 ft. long RJ11
Male/Male cable supplied. Plug one end into the RJ11 Jack on the SJ/L-EN marked “SERIAL”. The other end of
this cable plugs into the RJ45 connector on the inverter. In the case of the SJ200, the keypad and male/male
adapter on the inverter must be removed, and the cable will plug into the RJ45 Jack on the front of the SJ200.

Note: Even though the communication connector jack on the inverter is RJ45 and the 2 ft. cable plug is RJ11,
the RJ11 plug will fit into the center of the RJ45 jack and connect properly.

The SL/L-EN requires 24 VDC to be supplied to it, via the terminals marked “+ 24 V −” on the lower left of the
board. This power may be supplied from the inverter in the case of the L100 and SJ100, where 24 VDC is
available between terminals P24 and L. In the case of the L200 and SJ200, an external 24 VDC power supply
must be provided by the user. The terminal marked GNDC is an additional grounding point, and may be used to
terminate the shield lead if shielded cable is used to connect to the SJ/L-EN.

The ethernet network cable will plug into the RJ45 jack on the SJ/L-EN marked “ETHERNET”.

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Chapter2

User Interface

The SJ/L-EN has seven LEDs to convey module status and activity.

Four LEDs next to the RJ45 connector:

• STATUS (GREEN) – This LED will be ON whenever the SJ/L-EN is receiving proper power from the

inverter and the self diagnostics have shown the board to be functioning normally.

• LINK (GREEN) – This LED is ON when the SJ/L-EN is receiving valid Ethernet pulses.

• ACTIVITY (GREEN) – This LED is ON whenever there is Ethernet traffic in the cable.

• ERROR (RED) – This LED will be ON if the SJ/L-EN has failed due to a hardware watchdog timeout, or

the Ethernet communications has been absent for the software watchdog timeout period.

Two LEDs near the right edge of the board:

• RTS – This LED indicates communication between the SJ/L-EN to the inverter through the serial port.

• TXD – This LED indicates communication from the SJ/L-EN to the inverter through the serial port.

• RXD – This LED indicates communication to the SJ/L-EN from the inverter through the serial port.

(All three of these LEDs should be rapidly blinking; if not, there may be a problem with the connection.)

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