Hitachi NES1-002S, NES1-004S, NES1-007S, NES1-015S, NES1-022S Basic Manual

1

Safety precautions

Be sure to read this Instruction Manual and appended documents thoroughly before installing, operating the inverter.

Maintenance and service items in this manual are only caution related items. Read QRG (Quick Reference Guide) carefully before starting the
maintenance and service. (QRG can be downloaded from our website.)
In the Instruction Manual, safety instructions are classified into two levels, namely WARNING and CAUTION.

: Indicates that incorrect handling may cause hazardous situations, which may result in serious personal injury or death.
: Indicates that incorrect handling may cause hazardous situations, which may result in moderate or slight personal injury or

physical damage alone.

Note that even a level situation may lead to a serious consequence according to circumstances. Be sure to follow every safety
instruction, which contains important safety information. Also focus on and observe the items and instructions described under "Notes" in the text.

1. Installation

2. Wiring

Make sure that the voltage of AC power supply matches the rated voltage of your inverter. Otherwise, you run the risk of injury or fire.

- Do not input single-phase power into the 3-phase inverter. Otherwise, you run the risk of fire.

- Do not connect AC power supply to any of the output terminals (U, V, and W). Otherwise, you run the risk of injury or fire.

- NE-S1 series inverter do not have terminals for braking resistor. Do not connect the resistor. Otherwise there is a risk of fire.

- Connect an earth-leakage breaker to the power input circuit. Otherwise, you run the risk of fire.

- Use only the power cables, earth-leakage breaker, and magnetic contactors that have the specified capacity (ratings). Otherwise, you run the risk
of fire.

- Do not use the magnetic contactor installed on the primary and secondary sides of the inverter to stop its operation.

- Tighten each screw to the specified torque. No screws must be left loose. Otherwise, you run the risk of fire.

- Before operating slide switch in the inverter, be sure to turn off the power supply. Otherwise, you run the risk of electric shock and injury.

- Please make sure that earth or ground screw is tighten properly and completely.

- First, check the screws of output terminal (U, V and W) are properly tighten, and then tighten the screws of input terminal (R,S and T)

Basic Manual of Hitachi NE-S1 series inverter

Thank you for purchasing the Hitachi NE-S1 series inverter.
Please read this document and QRG(Quick Reference Guide), and understand perfectly how to handle
properly and the safety cautions of the product before operation, for safety and proper usage.
Note that this Manual is intended for each product and should be delivered to the end user of the inverter.

NT341BX

Many of the drawings in the Instruction Manual show the inverter with covers and/or parts blocking your view being removed.
Do not operate the inverter in the status shown in those drawings. If you have removed the covers and/or parts, be sure to reinstall them in their
original positions before starting operation, and follow all instructions in the Instruction Manual when operating the inverter.

- Install the inverter on a non-flammable surface, e.g., metal. Otherwise, you run the risk of fire.

- Do not place flammable materials near the installed inverter. Otherwise, you run the risk of fire.

- When carrying the inverter, do not hold its top cover. Otherwise, you run the risk of injury and damage by dropping the inverter.

- Prevent foreign matter (e.g., cut pieces of wire, sputtering welding materials, iron chips, wire, and dust) from entering the inverter. Otherwise, you
run the risk of fire.

- Install the inverter on a structure able to bear the weight specified in the Instruction Manual. Otherwise, you run the risk of injury due to the inverter
falling.

- Install the inverter on a vertical wall that is free of vibrations. Otherwise, you run the risk of injury due to the inverter falling.

- Do not install and operate the inverter if it is damaged or its parts are missing. Otherwise, you run the risk of injury.

- Install the inverter in a well-ventilated indoor site not exposed to direct sunlight. Avoid places where the inverter is exposed to high temperature,
high humidity, condensation, dust, explosive gases, corrosive gases, flammable gases, grinding fluid mist, or salt water. Otherwise, you run the risk
of fire.

- The inverter is precision equipment. Do not allow it to fall or be subject to high impacts, step on it, or place a heavy load on it. Doing so may cause
the inverter to fail.

- Be sure to ground the inverter. Otherwise, you run the risk of electric shock or fire.

- Commit wiring work to a qualified electrician. Otherwise, you run the risk of electric shock or fire.

- Before wiring, make sure that the power supply is off. Otherwise, you run the risk of electric shock or fire.

- Perform wiring only after installing the inverter. Otherwise, you run the risk of electric shock or injury.

- The inverter must be powered OFF before you change any of the slide switch settings.Otherwise, you run the risk of electric shock or injury.

CAUTION

WARNING

CAUTION

WARNING

CAUTION

CAUTION

CAUTION

2

3. Operation

4. Maintenance, inspection, and parts replacement

5. Others

- While power is supplied to the inverter, do not touch any terminal or internal part of the inverter, check signals, or connect or disconnect any wire or
connector. Otherwise, you run the risk of electric shock or fire.

- Be sure to close the top cover before turning on the inverter power. Do not open the top while power is being supplied to the inverter or voltage
remains inside. Otherwise, you run the risk of electric shock.

- Do not operate switches with wet hands. Otherwise, you run the risk of electric shock.

- While power is supplied to the inverter, do not touch the terminal of the inverter, even if it has stopped. Otherwise, you run the risk of injury or fire.

- If the retry mode has been selected, the inverter will restart suddenly after a break in the tripping status. Stay away from the machine controlled by
the inverter when the inverter is under such circumstances. (Design the machine so that human safety can be ensured, even when the inverter
restarts suddenly.) Otherwise, you run the risk of injury.

- Do not select the retry mode for controlling an elevating or traveling device because output free-running status occurs in retry mode. Otherwise,
you run the risk of injury or damage to the machine controlled by the inverter.

- If an operation command has been input to the inverter before a short-term power failure, the inverter may restart operation after the power
recovery. If such a restart may put persons in danger, design a control circuit that disables the inverter from restarting after power recovery.
Otherwise, you run the risk of injury.

- Prepare the additional emergency stop switch in addition to the stop key of the integrated operator and/or the optional operator. Otherwise, there

is a danger of injury.

- If an operation command has been input to the inverter before the inverter enters alarm status, the inverter will restart suddenly when the alarm
status is reset. Before resetting the alarm status, make sure that no operation command has been input.

- While power is supplied to the inverter, do not touch any internal part of the inverter or insert a bar in it. Otherwise, you run the risk of electric

shock or fire.

- Run/Stop/Reset is integrated in one button, before you press the button, please make sure that the machine(facility) can be operated.

Otherwise, you run the risk of injury or damage to the machine controlled by the inverter.

- Do not touch the heat sink, which heats up during the inverter operation. Otherwise, you run the risk of burn injury.

- The inverter allows you to easily control the speed of motor or machine operations. Before operating the inverter, confirm th

e capacity and ratings of

the motor or machine controlled by the inverter. Otherwise, you run the risk of injury.

- Install an external brake system if needed. Otherwise, you run the risk of injury.

- When using the inverter to operate a standard motor at a frequency of over 60 Hz, check the allowable motor speeds with the manufacturers of the
motor and the machine to be driven and obtain their consent before starting inverter operation. Otherwise, you run the risk of damage to the motor
and machine.

- During inverter operation, check the motor for the direction of rotation, abnormal sound, and vibrations. Oth

erwise, you run the risk of damage to the

machine driven by the motor.

- Regardless Run command setting(A002/A202) if the key is pressed, the inverter starts running. Therefore, if you selected Run command such as
operator or terminal, please handle the key after you made sure that the machine/facility can be operated safely.

- Before inspecting the inverter, be sure to turn off the power supply and wait for 10 minutes or more. Otherwise, you run the risk of electric shock.

(Before inspection, confirm that the Charge lamp on the inverter is off.)
In case the power indication of the operator does not turn ON after power-up, inverter may be damaged. In that case, the inspection must be done
after waiting two hours or more of the power OFF. Otherwise there is a danger of electric shock and/or injury.

- Commit only a designated person to maintenance, inspection, and the replacement of parts.
(Be sure to remove wristwatches and metal accessories, e.g., bracelets, before maintenance and inspection work and to use insulated tools for the

work.) Otherwise, you run the risk of electric shock and injury.

- Never modify the inverter. Otherwise, you run the risk of electric shock and injury.
Do not discard the inverter with household waste. Contact an industrial waste management company in your area who can treat industrial waste
without polluting the environment.

- Do not discard the inverter with household waste. Contact an industrial waste management company in your area who can treat industrial waste
without polluting the environment.

CAUTION

WARNING

WARNING

WARNING

CAUTION

3

Cautions for UL and cUL

(Standard to comply with : UL508C,CSA C22.2 No.14-05)

a) Maximum surrounding air temperature rating of 50ºC.
b) Solid State motor overload protection reacts with max. 150 % of FLA.
c) Suitable for use on a circuit capable of delivering not more than 100,000 rms Symmetrical Amperes, 240 Volts Maximum.
d) Drive has no provision for motor over temperature protection. Motor over temperature protection is required at end application.

e) Protected by J, CC, G or T Class Fuses. or when protected by a circuit breaker having an interrupting rating not less than 100,000 rms

symmetrical amperes, 240 Volts maximum.

f) Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection must be provided in accordance

with the National Electrical Code and any additional local codes.

g) Drive has no provision for motor over temperature protection. Motor over temperature protection required at end application.
h) Use 60/75ºC CU wire only.
i) Tightening torque and wire range as shown in the table below.

Model No.

Required Torque

(N.m)

Wire Range

(AWG)
NES1-002S 0.8~1.0 16~14
NES1-004S 0.8~1.0 16~14
NES1-007S 1.8 14~12
NES1-015S 1.8 12~10
NES1-022S 1.8 10
NES1-002L 0.8~1.0 16~14
NES1-004L 0.8~1.0 16~14
NES1-007L 0.8~1.0 16~14
NES1-015L 1.8 14
NES1-022L 1.8 12

j) Distribution fuse and circuit breaker size marking is included in the manual to indicate that the unit shall be connected with a Listed Cartridge

Nonrenewable fuse or Inverse time circuit breaker, rated 600 VAC with the current ratings as shown in the table below:

Model No.

Fuse Circuit Breaker

Type

Maximum

Rating

Type

Maximum

Rating

NES1-002S

Class J, CC,

G or T

10 A

Inverse Time

15 A NES1-004S
NES1-007S 20 A
NES1-015S

30 A 30 A

NES1-022S

NES1-002L*

Class J, CC,

G or T

10 A

Inverse Time

15 A

NES1-004L*
NES1-007L*

15 A

NES1-015L
NES1-022L 20 A 20 A

* In case of using Circuit Breaker, an additional 5 A external protector is needed.

PD

R
S
T

U
V

W

P

Inverter

Power
supply

Motor

DC link choke

Circuit breaker or
Fuse

Wiring diagram of inverter

4

Supplement of Cautions for UL and cUL

Note (* mark) of item j): When a breaker is used in NES1-002L/004L/007L, a breaker of 15A and a protector (breaker) of 5A in series is additionally
required by the NEC(National Electrical code) standard un US.

1.1 Inspection at unpacking

Please check the followings after unpacking.
Please contact Hitachi if there are any problems such as noted below on the product.

(1) Any damage during transportation?
(2) Basic manual (English and Japanese) are packed together with the product?
(3) The product is the one you ordered (check with the specification label)

1.2 Basic Manual (This document)

This Basic manual is for NE-S1 series inverters.
Read this manual carefully for the proper operation of the product. Please keep this manual for future usage.
Please refer to QRG for the further detailed information. QRG can be downloaded from our website.
HP address: http://www.hitachi-ies.co.jp/english/products/inv/nes1/index.htm
When you use any options, please refer to the manual of each option.

1.3 In case of contact

When contacting the store or vendor where you bought the product or Hitachi directly, please provide the following information.

(1) Model name of the inverter
(2) Manufacturing number
(3) When you bought the product
(4) Contents of your inquiry

- Damaged portion and condition, and else

1.4 Warranty Terms

The warranty period under normal installation and handling conditions shall be two (2) years from the date of manufacture, or one (1) year from the
date of installation, whichever occurs first. The warranty shall cover the repair or replacement, at Hitachi's sole discretion, of ONLY the inverter that
was installed.

1. Service in the following cases, even within the warranty period, shall be charged to the purchaser:

a. Malfunction or damage caused by mis-operation or modification or improper repair
b. Malfunction or damage caused by a drop after purchase and transportation
c. Malfunction or damage caused by fire, earthquake, flood, lightening, abnormal input voltage, contamination, or other natural disasters

2. When service is required for the product at your work site, all expenses associated with field repair shall be charged to the purchaser.

3. Always keep this manual handy; please do not lose it. Please contact your Hitachi distributor to purchase replacement or additional manuals.

-002SB

200-240

200-240

3.1

1.4

2616200716000001

1206

-001

Example of the specification label

Model n

ame

(

NES1-002SB example

)

Manufacturing number

Freq.

Input

Voltage

Phase

Current

Freq.

Output

Volt. & phase
Current

Specification label

5

2. Name of each portion (removed front cover)

Name Description

① Connector for dedicated operator

for NES1-OP

Dedicated operator for NE-S1 (NES1-OP) can be connected on this connector.

② RUN/STOP/RESET key Push key for run, stop and reset operation.
③ Intelligent relay terminal Output terminal for intelligent relay (1 from c contact).
④ Main terminal For connecting power supply, motor output and DC reactor.
⑤ Switch for termination resistor Switch for integrated termination resistor (100Ω) for RS485.Integrated resistor of 100Ω is

connected when switched ON.

⑥ Switch for RS485/OPE Changeover switch for RS422/RS485 communication setting.
⑦ RS422/RS485 port Connector for RS485 external operator or PC software (RJ45 jack)
⑧ Switch for O/OI (analog input)

changeover

Voltage input (O) or current input (OI) can be selected using this switch.

⑨ Logic terminal A,B Terminal for connecting input/output signals (digital/analog) for the inverter control.
⑩ Charge lamp Turns ON when the internal DC bus voltage is 45V or more.

In case of wiring, maintenance or else, please be sure to check that this lamp is turned OFF

after waiting 10 minutes of power OFF.
Note１) Refer to page 13 for the description of the display and key operation.
Note 2) Position of ⑩charge lamp depends on the model. Refer to page 11 for the details.
Note 3) Pay attention when operating by PC via ⑦RS422/RS485 port, as the operation can also be done from the panel of the inverter.
Note 4) Be sure to turn power OFF when connecting or disconnecting the operator such as OPE-SRmini,OPE-S,WOP to the ⑦RS422/RS485

port.

3. Cautions for installation

①Caution during transportation

Please pay attention when carrying the product as it is covered by a plastic case.
Especially, do not put pressure onto the front cover and terminal cover. Otherwise there is a risk of damaging the product.
Please do not use products that are damaged, and/or lacking components.

⑥ Switch for RS485/OPE SW5

⑤ Switch for termination resistor SW4

⑦ RS422/RS485 port

② RUN/STOP/RESET keys

④ Main terminal

⑨ Logic terminal A

 P8 to 9

⑧Switch for O/OI (analog input)
changeover SW6

⑨ Logic terminal B

③ Intelligent relay terminal

⑩ Charge indicator lamp

① Connector for dedicated

operator for NES1-OP

 P8 to 9

OFF

(Default)

ON

 P9

RS485

OPE

(Default)

→ P9

Voltage O

(Default)

Current OI

 P9

 P8 to 9