Encom EN630-2S0004, EN650A-2S0004, EN630-2S0007, EN650A-2S0007, EN630-2S0015 User Manual

ISO9001 Quality Management System Authentication
CE Authentication

EN630/EN650A series

0.4-1.5KW

Series Inverter

Ver.2.0

Users’Manual

SHENZHEN ENCOM ELECTRIC TECHNOLOGIES CO.,LTD.

Version：V2.0-A0

Foreword

Thank you for purchasing EN630/EN650A series inverter developed and produced by

Shenzhen Encom Electric Technologies CO., LTD.

EN630 series mini hi-performance flux vector inverter adopts advanced control mode to
achieve high torque, high precision and wide-range speed regulation drive, and it also supports
speed sensorless torque control and PG control torque. It can meet customer all kinds of
requirement to universal inverter. EN630 inverter is a organic combination for customer’s
universal and industrial control purpose and provides practical main-auxiliary frequency
provision, run channel frequency binding, PID regulator, simple PLC, spinning traverse,
programmable input&output terminal control, pulse frequency provision and inbuilt Modbus, Can
bus, Profibus, RS485 and free protocol and other function and platform. It provides high
integration solution for most manufacturing and automation customer and EN630 inbuilt input
phase loss function, output phase loss function, short circuit to earth grounding function and many
other protective function to improve effectively the system reliability and safety.

EN650A series is a mini multi-function permanent magnet synchronous inverter which
combined market demand for synchronous motor and its supporting system, built-in unique
control algorithm, can achieve high torque, high precision, wide speed range control for
permanent magnet synchronous motor and brushless DC motor, supports PG vector and PG
vector control, and also supports speed and torque mode switching.

This brochure provides the installation and wiring settings, fault check and methods,
maintenance and other relative issues to customer. To make inverter assemble and operate rightly,
and use its high performance to best, please read this brochure carefully before installation usage
and keep them well to the final users of inverter.

Please contact our office or dealer anywhere at any moment when you have any doubts or
special demands in using these inverters, and you can also contact our after service center in our
headquarters directly. We will serve you with all our heart.

We reserve our right to notice you if we change contents of this manual.

Content

Content

1 Safety information and use notice points 1

1.1Safety precautions 1

1.2Use notice points 3

1.3 Use notice points 3

2 Inverter Type and Specification 5

2.1 Incoming inverter inspect 5

2.2 Type explanation 5

2.3 Nameplate explanation 5

2.4 Inverter type explanation 6

2.5 Appearance and parts name explanation 6

2.6 Outer size & gross weight 6

2.7 Outer size of keypad and its fixing box 7

2.8 Product technic index and spec 7

3 Installation and wiring 11

3.1 Installation ambient 11

3.1.1 The demands for installation ambient 11

3.1.2 Installation direction and space 11

3.2 Parts disassembly and installation 12

3.2.1 Keyboard disassembly and installati 12

3.2.2 Plastic cover disassembly and installation

3.3 Wiring notice points

3.4 Main loop terminal wiring

3.4.1 Connection between inverter and fitting parts

3.4.2 Main loop terminal wiring

3.5 Basic running wiring diagram

3.6 Control loop collocation and wiring

3.6.1 Relative location and function for control board terminal and slide

Switch

3.6.2 Descriptions for control board terminal

16

12

13

13

14
15
15

16

17

目录

3.6.3 Analog input&output terminal wiring 19

3.6.4 Communication terminal wiring 20

3.7 Installation guidance of anti-interference

3.7.1 noise interference restraining

3.7.2 Field wiring and earth grounding

3.7.3 long distance wiring & Leak current and countermeasure

3.7.4 Installation demand for electromagnetic on-off electronic

device 25

4 Run and operation explanation for inverter

4.1 Run of inverter 26

4.1.1 Running order channels

4.1.2 Frequency-provision channel 26

4.1.3 Work state

4.1.4 Run mode

4.2 Operation and use of key board 30

4.2.1 Keypad layout 30

4.2.2 Keypad function description 30

4.2.3 LED and indicator light

4.2.4 Key board display status

4.2.5 User Management Parameters

4.2.6 Method for operating keypad

4.3 Inverter electrification

4.3.1 Check before electrification

4.3.2 First electrification

5 Function Parameter Schedule Graph 38

5.1 Symbol description

5.2 Function parameter schedule graph 38

6 Troubleshooting

6.1 Failure and countermeasure

6.2 Failure record lookup

6.3 Failure reset 84

21

21

23

24

26

26

27

28

31

31

34

34

37

37

37

38

77

77

83

Content

6.4 Alarm reset 84

7 Maintenance 85

7.1 Routine maintenance 85

7.2 Inspection and replacement of damageable parts

7.3 Repair guarantee 86

7.4 Storage
Appendix A EN650A Mini multi-function PMSM Inverter
Appendix B Free-port Communication Protocol
Appendix C Modbus communication protocol
Appendix D Braking unit and braking resistance

86

87

88

133

152

167

1 Safety information and use notice points

1 Safety information and use notice points

To make ensure personal & equipment safety, this chapter must be read

carefully before the inverter come into use.

1.1 Safety precautions

There are three kinds of safety warnings in this manual as below：

Symbol

!

!

Note

It may cause human death, serious injury or heavy property loss
with wrong operation.

It may result body or device damage with wrong and timeless
precautions under operation.

Should pay extra cautions when inverter in use under this
symbol

Symbol description

1

1 Safety information and use notice points

g

Forbid to cut off the power source directly when inverter under
running, acceleration or deceleration status. Power source could
cut off when inverter completely in halt and standby status.

!

Otherwise user should be responsible for inverter and device

e and human injury.

dama

(1) Forbid to connect AC power source to output terminal U,V,W,
otherwise it could cause inverter completely damage.

(2) Forbid to install inverter on flammable objects, otherwise it

may cause fire.
(3) Do not install inverter in a environment with explosive gas, it
may cause explosion.
(4) Bare connection terminal should be insulation treatment after
main loop connection, otherwise it may cause electric shock.
(5) Do not operate inverter with wet hands when inverter power
on, otherwise it may cause electric shock.
(6) Inverter earth terminal should be well grounding connection.
(7) Do not open the front cover for wiring when inverter power on.
Inverter wiring and check must handle after 10 minutes of
inverter power off.
(8) Wiring connection should handle by qualified person and not
allow to slip any conductive objects inside inverter, otherwise it
may cause a electric shock or inverter damage.
(9) when inverter stocked for more than 6 months, using voltage
regulator to boost voltage up and keep inverter in standy status
for 1 hour, otherwise it may cause electric shock and explosion.

(1) Forbid to connect control terminals except TA, TB, TC to AC
220V/380V signal, otherwise it may cause inverter completely
damage.

!

(2) Do not install and run inverter when inverter damage or spare
part less, otherwise it may cause fire or human injury.
(3) inverter should install in a place where can accept itself weight,
otherwise it may cause inverter drop down or belongings damage.

2

1 Safety information and use notice points

1.2 Application range

(1) This kind of inverter apply to 3 phase ac asynchronous motor only for general

industry.

(2) It should handle cautiously and consult with manufacturer when inverter apply

to high reliability required equipment which relevant to life, properties and
safety device.

(3) This kind of inverter is the general motor control device in industry. When

inverter apply to dangerous equipment, safeguard should be considerable in

case of inverter failure.

1.3 Use notice points

(1) EN630/EN650A series inverter belong to voltage type inverter, and it is

normal with up temperature, noise and vibration of motor increasing over
power frequency run slightly.

(2) It is required to match inverter with variable frequency motor running at low

speed with constant torque for long time. When match inverter with general
asynchronous motor running at low speed, it should take measures to make
motor heat dissipation or monitoring motor temperature in avoid of motor
flash.

(3) It is necessary to take measures in advance for the damage caused for the bad

lubrication of the reduction box and wheel gear mechanical devices running at
low speed for long time.

(4) It is necessary to assure at first that the use speed range of motor bearings and

mechanical devices, also the increasing of motor vibration and noise should be
considered, when motor run over rated frequency.

(5) It is necessary to select the suitable brake assembly for hoisting device and big

inertia load to make sure the normal work when inverter stripping from power
grid for the overcurrent or overvoltage failure.

(6) Inverter start and stop control through terminal or other normal command

channel, otherwise it may cause inverter damage via connecting inverter input
terminal to big current switch just like contactor direct to start and stop
inverter frequently.

(7) It is necessary to make sure inverter cut off from operation without output,

when inverter and motor connect through switch components just like
contactor etc. Otherwise it will cause inverter damage.

(8) When inverter output frequency within some range, it may meet mechanical

resonance point of load device, through setting jump frequency to avoid it.

(9) Checking power supply voltage within allowed working range before usage,

3

1 Safety information and use notice points

otherwise, it need to change voltage or custom special voltage inverter.

(10)When inverter usage site altitude over1000 meters，inverter should decrease

current to use, output current decrease about 10% of rated current per 1000
meters increase.

(11)Motor should do insulation check before first usage or reusage after lay aside

for long time. Checking method show as graph 1-1 below with 500V voltage
type megohm meter , insulation resistance should not smaller than 5 MΩ，
otherwise inverter maybe damaged.

(12)Forbid inverter output side to assemble capacitor to improve power factor or

anti-thunder dependent resistor etc, otherwise it may cause inverter fault trip
or component damage show as graph 1-2.

U

EN630/EN650A

After wiring finish, short-circuit U,V,W
to measure insulation resistance

W

motor

EN630/EN650A

U
V

W

M

Fig.1-1 motor insulation check Fig.1-2 capacitor at output side forbidden

megohmm

Ground

4

2 Inverter Type and Specification

2 Inverter Type and Specification

2.1 Incoming inverter inspect

(1) Check if there is damage during transportation and inverter itself has damage

or fall-off parts.
(2) Check if parts presented in packing list are all ready.
(3) Please confirm nameplate data of the inverter is in line with your order

requirement.

Our product is guaranteed by strict quality system during manufacturing,
packing, transportation etc., please contact our company or local agent rapidly
if some careless omission or mistake arise, we’ll deal with it as soon as
possible.

2.2 Type explanation

EN630–4T 0015

Code Name

EN630 series

EN650A series

Code Vo l. gr ad e

2S Single phase 220V

Three phase

4T

380V

Fig.2-1 Type description

2.3 Nameplate explanation

Nameplate presented as figure 2-2 with type and rating data at the bottom of

inverter right side.

EN630 INVERTER

TYPE: EN630-4T0015
SOURCE: 3PH 380V 50/60Hz
OUTPUT: 1.5KW 3.7A

Fig.2-2 Nameplate

Series No.

Model

Rated input vol. And freq.

Motor power and output current

Serial No.

Manufacturer and origin

Match motor

Code

power (KW)

0004 0.4

0007 0.75

0015 1.5

5

2 Inverter Type and Specification

(op

2.4 Inverter type explanation

Table 2-1 inverter type explanation

Inverter type

EN630/EN650A-2S0004 2.5 0.4

EN630/EN650A-2S0007 4 0.75

EN630/EN650A-2S0015 7 1.5

EN630/EN650A-4T0007 2.3 0.75

EN630/EN650A-4T0015 3.7 1.5

Rated output

Current(A)

Adaptable motor

(KW)

2.5 Appearance and parts name explanation

Up cover plate

Operation keypad

digital tube

Digital potentiometer

Terminal wiring cover

Open here to connect brake resistor

tional)

Control cable inlet

vent

Input & output power cable inlet

Fig.2-3 Parts name sketch

2.6 Outer size & gross weight

Fig.2-4 outer dimension

6

2 Inverter Type and Specification

Table 2-2 mounting size

Inverter type

EN630/EN650A-2S0004

EN630/EN650A-2S0007 1.1

EN630/EN650A-2S0015 1.2

EN630/EN650A-4T0007 1.1
EN630/EN650A-4T0015 1.1

W

(mm) H (mm) D (mm)

89 148.5 112.5 124.7 74 138 5

D1

(mm) A (mm) B (mm)

Fix Hole

(mm)

GW.

(kg)

1

2.7 Outer size of keypad and its fixing box(unit:mm)

2.8 Product technic index and spec

Input

Output

Control

Performance

Fig. 2-5 EN-LED5-D keypad& Hole size of keypad

Item Item description

Rating volt.

frequency

Allowed volt

range

Vo l t age 0 ～380V

Frequency 0～600Hz

Over loading

capacity

Control mode

Velocity control

precision

1 phase 220V Grade：single phase 220V, 50Hz/60Hz；
3 phase 380V Grade：3 phase 380V, 50Hz/60Hz
1 phase 220V Grade：200～260V；
3 phase 380V Grade：320～460V

150% of rated current for 1 minute

vector control, PG vector control, open-loop V/F control, torque
control, PG torque control

±0.5% rated synchronous speed（vector control）；
±0.1% rated synchronous speed（PG vector control）；
±1% rated synchronous speed（V/F control）；

7

2 Inverter Type and Specification

p

by

g

g

jog

y

Speed regulation

range

Start-up torque

Speed fluctuation

Torque control

precision

Torque response

Frequency

precision

Analog

setting

Freq.

Digital

resolut

setting

ion

recision

Exterior
impulse

Torque boost Automatic torque boost；manual torque boost 0.1～12.0%

V/F curve(volt.

Frequency

characteristic)

Acceleration
Deceleration

curve

Power
consumpt
ion brake

brake

DC brake

jog

Multi-section

speed run

Inbuilt PID

controller

Automatic energy

saving run
Automatic

voltage

regulate(AVR)

1：2000（PG vector control）
1：100（vector control）；
1：50（V/F control）；

1.0Hz：150% rated torque（V/F control）；

0.5Hz：150% rated torque (vector control)；
0Hz：180% rated torque（PG vector control）；
±0.3% rated synchronous speed（vector control）；
±0.1% rated synchronous speed（PG vector control）；

±10% rated torque（vector control，torque control）；
±5% rated torque（PG vector control，PG torque control）.

≤20ms（vector control）；
≤10ms（PG vector control）；

Digital setting：max. frequency×±0.01%；Analog setting：max.
frequency×±0.5%

0.1% of max. frequency

0.01Hz

0.1% of max. frequency

Setting rated frequency at the range of 5～650Hz，
constant torque, degressive torque 1, de
degressive torque 3, self-defined V/F total 5 kinds of curve.

Two modes：strai
acceleration and deceleration; 15 kinds of acceleration and
deceleration time，time unit (0.01s, 0.1s, 1s) for option ，max.
time for 1000 minutes.

inbuilt brake unit，only add brake resistor between（+）and PB.

Start, stop action for option, action frequency 0～15Hz，action
current 0～100% of rated current，action time 0～30.0s

Jog frequency range：0Hz～up limit frequency；
and deceleration time 0.1～6000.0 seconds for setting.

Realized by inbuilt PLC or control terminal; with 15 section
speed, each section speed with separately acceleration and
deceleration time; with inbuilt PLC can achieve reserve when
power down.

Convenient to make closed-loop control system

Optimize V/F curve automatically to achieve power saving run
according to the load status.

Automaticall
voltage fluctuation

ht line acceleration and deceleration; S curve

keep output voltage constant, when the power grid

choosing

ressive torque 2,

acceleration

8

Running

y

y

g

p

y

g

g

g

g

g

function

Input output

characteristic

Unique

function

keypad

Automatic

current limiting

carrier

modulation

Speed tracking

restart

running

command

specified channel

Running

frequency

specified channel

Binding function

Digital input

channel

Analog input

channel

Pulse output

channel

Analog output

channel

Rapid current

Monopulse

control

Fixed length

control

Timing control

Virtual terminal

Keypad display

Button Locked Lock all or part of the buttons

Current limited automatically under run mode in avoid of inverter
over-current frequently to trip.
Modulate carrier wave automatically according to the load
characteristic.

Make rotating motor smoothly start without shocking

pad specified, control terminal specified, communication

Ke
specified can switch through various means.

Main & auxiliar
fine control. Digital specified, analo

ulse width specified, communication specified and others, which

can be switched by many means at any time.

Run command channel and frequenc
together randomly and switch synchronously

Channel 7 for universal di
channel 1 can be used as pulse input channel, with max. input
50KHz.

Channel 2 for analog input channel, AI1 can choose 4～20mA or
0～10V output，AI2 is differential input channel，4～20mA or

-10～10V for option.

0.1 ～ 20KHz pulse square signal output to achieve setting
frequency, output frequency and other physical quantity output.

Channel 1 for analog signal output, AO can choose 4～20mA or
0～10V to achieve settin
physical quantity output.

Limit inverter over current to the greatest point, and make it run

limit

more stably

Suitable for workin
inverter start and stop, first press to start, then press to stop, and
that cycle repeats. Its very simple and reliable.

Realize fixed length control

Timing control function: setting time range 0.1Min ～

6500.0Min
Five
control
The parameters as settin
voltage, output current can be displayed

specified to a realize one main adjusting and one

site where need one button to control

roup virtual input & output IO can realize simply logical

2 Inverter Type and Specification

specified, pulse specified,

specified channel can bind

ital input, max. Frequency 1KHz,

frequency, output frequency and other

frequency, output frequency, output

9

2 Inverter Type and Specification

g

y

g

Motor power on Shot circuit test, input & output phase loss
protection, over-current protection, over volta

Protection function

Application site

Envi
ronm

ent

struc

ture

Note

Altitude

Environment temperature

Environment humidity Smaller than 95%RH，no drop condenses

Vibration Smaller than 5.9 M/S²(0.6g)

Storage temperature -40℃～+70℃

Protection grade IP20

Cooling mode Forced air cooling and natural

Installation mode

To get a perfect usage performance of the inverter, Please check and
select right type according to this chapter before wiring.

It is necessary to select right type, otherwise it may cause motor

!

abnormal run or inverter damage.

voltage protection, over heat protection, overload protection,
under load protection, rela
protection and no stop protection under power off.
Indoor, not bare to sunlight, no dust, no corrosive
flammable gas, no vapor, no water drop or salt etc.
Under 1000 meter.（above 1000 meter require to reduce volume to
use, output current reduce about 10% of rated current per 1000
meter high）

-10℃～+40 ( environment temperature between 40℃℃～50 , ℃
need to reduce volume or strengthen heat sink )

Wall hanging

absorption protection, terminal

e protection, under

as, no

10

3 Installation and wiring

3 Installation and wiring

3.1 Installation ambient

3.1.1 The demands for installation ambient

(1) Installed in drafty indoor place，the ambient temperature should be within

-10ºC~40ºC，it needs external compulsory heat sink or reduce the volume if
temperature is over than 40ºC.

(2) Avoid installing in places with direct sunlight, much dust, floating fiber and

metal powder.

(3) Don’t install in place with corrosive, explosive gas.
(4) The humidity should be smaller than 95%RH，without condensation water.
(5) Installed in place of plane fixing vibration smaller than 5.9m/s²(0.6g).
(6) Keep away from electromagnetic disturbance source and other electronic

apparatus sensible to electromagnetic disturbance.

3.1.2 Installation direction and space

(1) Normally the inverter should be mounted vertically, horizontal mounting will

seriously affect heat dissipation and the inverter must be used in lower
volume.

(2) Demand for minimum mounting space and distance，please see Fig.3-1.
(3) When installing multiple inverters up and down, leading divider must be

applied between them, see fig. 3-2.

Exhaust

fan

50mm

above

Fig.3-1 mounting space Fig.3-2 mounting of multiple inverters

100mm above

100mm above

50mm

above

Leading divider

导流隔板

11

3 Installation and wiring

3.2 Parts disassembly and installation

3.2.1 Keyboard disassembly and installation
(1) Disassembly

Let the forefinger press finger inlet on the keypad，press fixing flexible plate

on the top lightly,draw it outward, then you can disassemble the keypad.

(2) Assembly

First interface the fixed hook of on the bottom of keyboard with the keyboard
installation claw of inverter, then press the fixed shrapnel on the top of keyboard
to push it assemble well properly (keyboard assemble well when sounding of
crisp).

3.2.2 Plastic cover disassembly and installation
(1) Disassembly

Located the thumbs to the side bayonet,with thumbs press inside and pull
upside at the same time until the bayonet open between cover and whole case,
then pull back cover to make it off the inverter.

3.3 Wiring notice points

!

Assure power be cut off completely for above 10 m⑴ inutes before

wiring, otherwise there is danger of getting electric shock.

Forbid connecting power wire to output U, V, W of the inverter.⑵
If there is current leakage inside inverter, when current leaka⑶ ge

greater than 5mA for medium & big power inverter, inverter and motor
must be earth grounding for safety assurance, and the diameter of earth
grounding copper cable is greater than 3.5mm², resistor less than 10Ω.

Before shipment compression resistance⑷ test of the inverter is

passed, so users should not conduct compression resistance test again.

Do not add absorbing capacitor or other resistance⑸ -capacitor

absorbing device between inverter and motor; also do not add
electromagnetic contact, show as Fig.3-3

To provide inverter over⑹ -current protection in output side and

convenient maintenance under power off, it should be connected to
power source through relay.

Relay, input & output circuit wiring (X1⑺～X7、Y1、Y2/DO、TA、

TB、TC、AI1、AI2、AO、485A、485B) should select greater than

0.75mm² stranded wire or shielding wire. One end of the shielding layer
hang in the air, and the other end connect to inverter earth grounding
terminal, connection wire shorter than 20m.

12

3 Installation and wiring

(1)Before wiring, assure power supply is cut off completely for 10
minutes and all LED indicator light extinguished.
(2) Wiring can only be done by professional person trained and qualified.
(3) Before power on, check if voltage grade of the inverter is in line with

!

that of power supply volt., otherwise will cause personnel injured and

L1(R)

device da

inverter

U

V

W

、

Fig.3-3 Forbid to use contactor and absorbing capacitor

3.4 Main loop terminal wiring

Power

三相

source

交流
电源

Air switch

空气开关

breaker

（断路器）

contactor

接触器

Fig.3-4 main loop simple wiring

EN630/
EN650A

R
S
T

U

V

W

M

M

13

3 Installation and wiring

3.4.1 Connection between inverter and fitting parts

(1) Breaking device like isolation

Switch must assemble between power
source and inverter to keep persona
safety under repairing and

R
S
T
N

inverter requirement for compulsory power off.

(2) There must be over-current

protection breaker or fuse in inverter
power supply circuit to avoid failure
expanding because of the second device failure.

(3) AC input reactor

When high harmonics between inverter

and power supply is strong which cannot

meet system requirement or input side

power factor need to improve, ac input reactor

can be added.
(4) Contactor is used to power supply only,

do not use it to control inverter start and stop.
(5) Input side EMI filter

EN630/EN650A

UVW

Optionally EMI filter to restrain high frequency

transduction interference and radio-frequency

interference from inverter power line.
(6) Output side EMI filter

Choosing optionally EMI filter to

restrain radio-frequency Interference

and wire leakage current from inverter

output side.

Fig.3-5 connection of inverter and
fitting parts

(7) AC output reactor

Installing AC output reactor is suggested

to avoid motor insulation damage, oversize current leakage and inverter

frequent protection when connecting wire between inverter and motor exceeds

50m. While to consider the voltage decrease issue of AC output rector, it can

follow to boost inverter input & output voltage or use smaller power motor to

avoid motor damage.
(8) Safety earth ground wire

Inverter and motor must be earth ground connection, connection wire should

select as shorter and thicker as above 3.5mm² multi-core copper wire, and

earth grounding resistance smaller than10Ω.

14

空气开关

Isolation switch

断路器或熔断器

Breaker or fuse

Ac input reactor( In option)

交流输入电抗器(可选)

Contactor

接触器

Input EMI filter( In option)

输入EMI滤波器(可选)

TSR

(+)

制动单元(可选)

Brake unit( In option)

(-)

BrS0～10485A

Input EMI filter( In option)

输出EMI滤波器(可选)

Ac output reactor(Note 1

交流输出电抗器(可选)

M

3 Installation and wiring

t

3.4.2 Main loop terminal wiring

Main loop input output terminal show as table 3-1.

Table 3-1 main loop input output terminal description

Adapted type Main loop terminal Terminal name Function description

EN630/EN650A-2S0004

～

EN630/EN650A-2S0015

EN630/EN650A-4T0007

～

EN630/EN650A-4T0015

L1(R)

L2(S)

L3(T)

U V

U V

W

48

L1

L2

U、V、W

L1(R)、L2(S)、L3(T)

U、V、W

Zero line

Live line

Grounding terminal
3 phase AC output terminal

3 phase AC input terminal

Grounding terminal
3 phase AC output terminal

3.5 Basic running wiring diagram

Note 1：When X1～X7 terminal input signal low electric level valid , push SW1 to “L” side.
Note 2：When X1～X7 terminal input signal high electric level valid , push SW1 to “H” side.

Breaker

Power source

Note 2

Multifunction select 1

Multifunction select 2

Multifunction select 3

Multifunction select 4

Multifunction select 5

Multifunction select 6

Multifunction selec

Note 1

Speed command

0～10V or 4～20mA

7

-10～10V

P+

L1(R)
L2(S)

H

L3(T)

+10V

X1

X2

X3

Internal optocoupler
isolation input

X4

X5

X6

X7

(Multifunction select 7 can
use as high speed pulse
input)

COM

+10V

AI2

AI1

GND

Fig.3-6 basic wiring diagram

Brake resistor (external, fitting parts: connect to

right side of inverter)

PB

SW1

L

EN630/EN650A

Y2/DO

Y1

+24V

485A

485B

U
V

W

GND

AO

COM

2 circuit open collector output

Provide +24V power source outside

TA

Fault relay output

TB

TC

M

Analog meter 4-20mA
current signal or 0～10V
voltage signal

frequency meter output 24V
pulse signal

Standard 485
communication

15

3 Installation and wiring

y

3.6 Control loop collocation and wiring

3.6.1 Relative location and function for control board terminal and slide

switch：

Control board terminal and slide switch location show as Fig 3-7.
User terminal function explanation can be seen in table 3-2，The setting

description and function of slide switch check table3-3, terminal CN3 is for
manufacturer usage. Please do the right terminal wiring and setting to the switch
on control board before using inverter and it is suggested to use greater than 24
AWG cable to connect terminal.

Fig 3-7 sketch map of CPU board

T able 3-2 function description of terminal provided for user

No. Function Description

CON1 Fault relay signal output

External terminal input &

CN2

output quantity control

when inverter alarm failure, the rela
will close.

Use the terminal when external terminal to control inverter
operate.

16

open normal switch

3 Installation and wiring

g

g

Table 3-3 Slide switch function description for users

No. Function Default

Analog AO output，0～10V & 4～20mA switch.

SW4

Locate “V” side， 0～10V output；locate “I” side，4～20mA output

Analog AI1 input，0～10V & 4～20mA switch.

SW3

Locate “V” side，0～10V input；locate “I” side，4～20mA input

Analog AI2 input，-10～10V & 4～20mA switch.

SW5

Locate “V” side，-10～10V input；locate “I” side，4～20mA input

Xi terminal input valid electric level switch：locate “H” side, Xi input hi

SW1

electric level valid(valid voltage range 15～30V)；locate “L” side，Xi
input low electric level valid(valid voltage range 0～6V)

0～10V

0～10V

-10～10V

h

Low electric

level valid

3.6.2 Descriptions for control board terminal

⑴ CN2 terminal layout as following

X1 X2 X3 X4 X5 COM X6 X7 485A

+10V

AI1 AI2 GND AO Y2/DO +24V Y1 485B

⑵ CN2 terminal function description show as Table 3-4

T able 3-4 function table for control board terminal

Symb

Type

Multfun
ction
input
terminal

+10V +10V power source

COM

GND

Description Terminal Function Specification

ol

X1 Multifunction input 1

X2 Multifunction input 2

X3 Multifunction input 3

X4 Multifunction input 4

X5 Multifunction input 5

X6 Multifunction input 6

Multifunction input 7/

X7

high-speed pulse input

Common terminal +24V
power negative polarity

+10V power ne
polarity

Programmable defined as
multifunction switch
quantity input terminal,
see switch quantity input
function parameter (F08
group) input terminal
description.

Provide power source
+10V outside(negative
polarity：GND)
+24V earth

Analog signal and +10V

ative

power source reference

Input impedance: R=2KΩ
Max. input
frequency:200Hz
X6、X7 can used as encoder
input
Max. input
frequency:50KHz
Input voltage range:15～
30V

Max. output current:10mA

17

3 Installation and wiring

Analog

SW5.

polarity：COM)

Open circuit collector

Open circuit collector

/ high

speed pulse input

frequency max. is 20KHz.

AI1 Analog input AI1

inpu

AI2 Analog input AI2

Analog

function

terminal

AO Analog output

output

+24V +24V power source

Multi-

output

Y1

Y2/D

O

output terminal 1

output terminal 2

terminal

Accept analog
voltage/current quantity
input，voltage, current
selected by switch SW3，
factory default is voltage.
(reference：GND)

Accept analog voltage
quantity input,voltage,
current selected by switch

Provide analog
voltage/current quantity
output，output voltage/
output current selected by
switch SW4，factory
default is output voltage.
(reference：GND)
Provide power source
+24V outside(negative

Programmable defined as
multi-function pulse signal
output terminal, particulars
see switch quantity, analog
quantity function parameter
(F09 Group) terminal
introduce

Input voltage range：0～
10V (Input impedance：
20KΩ)
Input current range：4～
20mA (Input impedance：
250Ω)
resolution：1/4000
Input voltage range：-10～
10V (Input impedance：
20KΩ) resolution：1/2000

current output range：4～
20mA
voltage output range：0～
10V

Max. output current:100mA

Max. output voltage:30V
Max. output current:50mA

Through F00.22 to select
terminal output means as
open collector output, with
same specification as Y
terminal, when used to high
pulse output: output pulse
voltage is 24V, output

⑴ RS485 terminal function description show as Table 3-5

Table 3-5 RS485 terminal function on control board

Type Symbol Description Terminal Function Specification

communi

cation

(4) terminal CON1, layout as following：

(5) CON1 terminal function description show as Table 3-6

18

485A

485
communicatio
n interface

485 differential signal
positive terminal

Standard 485
communication port
should use shielding wire
or twisted wire.

3 Installation and wiring

Table 3-6 CON1 terminal function on control board

Type Symbol Description Terminal Function Specification

Relay
output

terminal

TA

TB

TC

Fault output
relay

normal：TB-TC
close,TA-TC open
alarm：TB-TC open,TA-TC
close

TB-TC: close normal，TA - TC ：open normal.
Contactor capacity ：
AC250V/2A (COSΦ=1)
AC250V/1A (COSΦ=0.4)
DC30V/1A

3.6.3 Analog input&output terminal wiring

(1) AI1 receive analog voltage signal input, wire as below：

or4～20mA

+

―

0～+10V

hield cable near-end earth

S

grounding

+10V

EN630/EN6

AI1

50A

GND

Fig.3-8 AI1 terminal wiring diagram

(2) AI2 receive analog signal input, input voltage

-10～+10V20mA

+

―

or 4～20mA

Shield cable near-end

earth grounding

wire as below：

（-10～10V）and input current （4～20mA）,

+10V

EN630/

AI2

EN650A

GND

Fig.3-9 AI2 terminal wiring diagram

(3) analog output terminal AO wire

analog output terminal AO external connect to analog meter can indicate

several physical quantity, wire as below：

EN630/
EN650A

AOL1

GNDL2

Analog meter

Fig.3-10 AO terminal wiring diagram

19

3 Installation and wiring

(1) Under analog input mode, filter capacitor or common mode
choke can be installed between AI1 and GND or AI2 and GND.
(2) Analog input and output signal can be interfered easily by
ambient environment, it need use shield cable for connection and

Note

earth grounding well as short as possible.

3.6.4 Communication terminal wiring

EN630/EN650A inverter provide RS485 serial communication interface to

user.

The following wire connection can make up of single-main single-sub

control system or single-main multi-sub control system. To use host computer

software（PC or PLC controller）can realize real time monitoring and operation to

inverter，and to achieve complicated run control like long-distance control, high

degree automation. It can also use one host inverter and others slave inverter to

make up of the cascade or synchronous control inverter network.

Inverter ⑴ RS485 interface and other device with RS485 interface wire connection

show as following

EN630

/EN650A

RS485

A(485+)

B(485-)

A(485+)

B(485-)

Device with
RS485 o

EN630
/EN650A

r

Fig.3-11 Communication terminal wiring

20

3 Installation and wiring

⑵ Inverter RS485 interface and host computer (device with RS232 interface)

connection：

EN630/EN650A inverter

description name

Signal B

Signal A

RS232/RS485 converter

name description

B

A

+5V

TXD

RXD

GND

Shield cable

Host computer

Signal

Pin No.

shell

RXD 2

TXD 3

GND 5

DTR 4

DSR 6

RI 9

CD 1

RTS 7

CTS 8

Fig.3-12 RS485 communication wiring

3.7 Installation guidance of anti-interference

Inverter main circuit consist of high power semiconductor and switch
component, for which will generate electromagnetic noise when working, and to
avoid or reduce inverter interference to ambient environment, this chapter
introduce installation means to restrain interference from aspect of interference
restrain, field wiring, system earth grounding, leakage current and power filter
usage.

3.7.1 noise interference restraining

Inverter interference generating for run may have effect to nearby electronic
device and the effect depend on the inverter installation surrounding
electromagnetic environment and the restrain interference ability of the device.

（1）interference noise type

Because of inverter working principle, there are mainly 3 kinds of noise
interference source:：

⑴ circuit conduction interference；
⑵ space emission interference；
⑶ electromagnetic induction interference；

21

3 Installation and wiring

ductio

p

Circuit conduction
interference

Leak current

漏电流接

earth grounding

地线回路

wire loop

干扰

interference

route

路径①

（2）noise transmission route

22

Power wire high

电源线高次

harmonic current

谐波电流传

conduction

导干扰

interference

route

路径②

Inverter main circuit

变频器的主回路

switch and switch

开关与开关电源

ower radio

的射频干扰

interference

路径③

route

Fig.3-13 interference noise type

Sensor power

sensor

①

Fig.3-14 noise interference transmission route diagram

②

⑤

⑤

Interference Type

Space emission
interference

Motor wire

电机线

U,V,W radio

U、V、W

interference

的射频干扰

路径④

route

⑧

inverter

⑦

motor

Input wire
induction

⑥

Electromagnetic
induction interference

输入线

感应

route

路径⑥

Power wire

电源线

R,S,T radio

R、S、T

interference

的射频干扰

route

路径⑤

Wireless
device

Inverter power

变频器功率

component

部件感应

n

in

route

路径⑦

TV

meter

Output wire
induction

输出线

感应

路径⑧

route

3 Installation and wiring

g

p

g

g

（3）Basic countermeasure for restrain interference

Table 3-7 interference restrain countermeasure

Noise

spread

road

①

②

③④⑤

⑥⑦⑧

Earth
up of the closed-loop and leakage current of inverter earth grounding
cable will make device perform wrong action. It will decrease wrong
action when device not connect to earth grounding.
When the power of
same power source, high harmonic generating from inverter will
transmit the voltage and current along with the power line which will
interfere other devices within the same power source system. Take
some restraining measures as below：install electromagnetic noise
filter at inverter input end; use isolation transformer to isolate other
devices; connect power end of peripheral device to remote power
grid；add power ferrite filter magnetic ring to inverter R、S、T three
phase wire to restrain high harmonic current conduction

Keep other sensitive devices and si
inverter. it should use shield wire and make the shield layer single
end earth grounding. Besides keep distance from inverter and its
input & output wire as possible as. When signal wire need to
intersect with strong current cable, it should make them orthogonal
crossing not parallel.
Install high frequency noise filter (ferrite common code choke,
also called magnetic ring) at the bottom end of the inverter input &
output to restrain radio frequency interference of dynamic wire
effectively.
Motor cable should be placed in protective object with large
thickness, such as placed in larger thickness(over 2mm) pipeline or
buried in cemented tank. Putting dynamic wire in metal tube and
connect to earth grounding with shield wire (motor cable use 4-core
cable, one side is earthed through the inverter, the other side

connected to motor casing).
To prevent wire parallel or bundled of stron
should keep away from inverter assemble device, and wiring should
away from inverter R,S,T,U,V,W power line. Devices with high field
and high magnetic field should notice the corresponding installation
position of inverter and keep distance and orthogonal crossing.

Countermeasure of weakening effect

rounding cable of peripheral device and inverter wiring make

eripheral device and inverter power belong to the

nal wire installed away from

and weak current, it

3.7.2 Field wiring and earth grounding

inverter terminal motor connection wire ⑴（U,V,W terminal output wire）and
inverter terminal power connection wire（R,S,T terminal input wire）should

keep distance enough as more as 30cm。

23

3 Installation and wiring

U⑵ ,V,W terminal 3 motor wires should be placed in metal tube or metal wiring

tank as possible as.
Generally control signal wire should use shield cable, when shield layer⑶

connect to inverter terminal, it should be the single end earth grounding

which closed to inverter side.

Inverter⑷ terminal earth grounding cable must directly connect to floor, it cannot

connect to earth grounding through other device.

⑸ strong current cable(R,S,T,U,V,W) cannot parallel wiring closely with control

signal wire, and bundled together is prohibited. It should keep distance from

over 20～60 cm（relative to strong current size). When it’s necessary to intersect,

it should be orthogonal crossing, show as Fig.3-15.

电源线或电动机线

Power wire or motor cable

控制信号线

Control signal wire

Fig.3-15 system wiring demand

earth grounding wire for strong current should separately connect to earth ⑹

grounding with control signal and sensor earth grounding wire for weak current.

Forbid to connect inverter ⑺ input terminal(R,S,T) to other devices.

3.7.3 long distance wiring & Leak current and countermeasure

When inverter connect to motor in a long distance, high harmonic wave

through distributed capacitance will generate leak current to earth and

wire-to-wire. Restraining methods as below:

install ferrite magnetic ring or output reactor at the inverter output terminal.⑴

When rea ctor in stalle d with r ated voltage drop more 5% and long
wiring to U, V, W terminal， it would reduce motor’s voltage
apparently. When motor run at full load, it is possible to flash

!

motor, and it should be used by derating or boosting input and
output voltage.

24

3 Installation and wiring

(2) as carrier frequency low, the motor noise would increase accordingly.

3.7.4 Installation demand for electromagnetic on-off electronic device

It should pay attention that surge absorber must be installed when electromagnetic
on-off electronic device like relay, electromagnetic contactor and electromagnetic
iron generating noise easily and largely installed near to inverter or in the same
control cabinet, show as Fig. 3-16.

Inverter or

变频器或其

other devices

它电气设备

diode

二极管

压敏电阻器

varistor

filter

RC-滤波器

+

24V

DC

_

～

220V

AC

～

～

220V

AC

～

Fig.3-16 install demand for electromagnetic on-off device

25