Service Manual

EDS780 Series

220AC 0.75KW

Series Inverter

Ver. : 1.0

S e r v i c e M a n u a l

CONTENT

1 Safety information and use notice points ......................................................... 1

1.1 Safety precautions....................................................................................... 1

1.2 Use range .................................................................................................... 2

1.3 Use notice points ........................................................................................ 2

1.4 Scrap notice points ...................................................................................... 4

2 Type and specification of the inverter .............................................................. 5

2.1 Incoming inverter inspect ........................................................................... 5

2.2 Type explanation......................................................................................... 5

2.3 Series type explanation ............................................................................... 5

2.4 Outer size and gross weight ........................................................................ 6

2.5 Basic running wiring diagram ..................................................................... 6

2.6 The inverter interface specifications ........................................................... 7

2.7 Operation and use of key board .................................................................. 8

3 Function parameter schedule graph ................................................................ 9

3.1 Symbol description ..................................................................................... 9

3.2 Function parameter schedule graph............................................................. 9

4 Troubleshooting ............................................................................................... 21

4.1 Failure and countermeasure ...................................................................... 21

4.2 Failure record lookup ................................................................................ 24

5 Maintenance .................................................................................................... 25

5.1 Routine maintenance ................................................................................ 25

5.2 Inspection and replacement of damageable parts ...................................... 25

5.3 Repair guarantee ....................................................................................... 26

5.4 Storage ...................................................................................................... 26

1 Safety information and use notice points

In order to ensure the safety of your personal and equipment, before using the inverter, please read this chapter of contents conscientiously.

1.1 Safety precautions

There are four kinds of safe relevant warnings in this service manual, they are as follows:

This symbol explains items that need to be paid attention to when being operated

notice note

!

warning

!

danger

!

danger

This symbol is briefed on some useful information.

This symbol briefs on: If does not operate on request, may make the body injured or the equipment damaged.

This symbol briefs on: If does not operate on request, may cause death, severely injured or serious property loss.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

Forbid to connect U, V, W output end to AC power supply, otherwise cause the complete damage of the inverter.

The inverter is forbidden to install on the flammables, otherwise have danger of fire.

Don't install it in the environment with explosive gas, otherwise have danger of causing explosion.

After connecting main loop, should carry on insulating treatment to bare wiring end, otherwise have danger of getting an electric shock.

If being connected to the power supply, don't operate the inverter with moist hands, otherwise have danger of getting an electric shock.

The ground terminal of the inverter must be grounded well.

Inverter being connected to power supply, please don't open cover and carry on wiring, can connect the wire or check only after closing power for 10 minutes.

Only qualified personnel may carry on wiring and forbid leaving over any conductive thing in machine, otherwise have danger of getting an electric shock or causing damage of the inverter.

Inverter stored for over half a year, should be stepped up gradually with voltage regulator first while having the electricity, otherwise have danger of getting electric shock and explosion.

1

notice

(1)

(2)

(3)

It is prohibited that connect AC220V signal to control ends except TA, TB, TC, otherwise have danger of damaging property.

If the inverter is damaged or without all parts, please don't install and operate it, otherwise have danger of fire or cause personnel to be injured.

When installing, should choose a place where can endure the inverter, otherwise have danger of injuring personnel or damaging property while falling down.

1.2 Use range

(1) This inverter is only suitable for three phases AC asynchronous motor in general industrial field.

(2) While applying inverter to such equipments that relate much to the life, great property, safety devices etc., must handle cautiously, and consult with producer, please.

(3) This inverter belongs to the control device of general industrial motor, if used in dangerous equipment, must consider the security safeguard procedures when the inverter breaks down.

1.3 Use notice points

(1) EDS780 series inverter is voltage-type inverter, so temperature, noise and vibration slightly increasing compared to power source running when using, belongs to normal phenomenon.

(2) If need to run for a long time with constant torque of low-speed, must select motor of frequency conversion for use. Use general asynchronous AC motor when running at a low speed, should control temperature of the motor or carry on heat dissipation measure forcedly, so as not to burn the generator.

(3) Such mechanical device needing lubricating as the gearbox and gear wheel, etc., after running at a low speed for a long time, may be damaged as lubrication result become poor, please take necessary measure in advance.

(4) When the motor running with frequency above specified, besides considering the vibration, noise increase of the motor, must also confirm speed range of the motor bearing and the mechanical device.

(5) For hoist and great inertia load, etc., the inverter would shut off frequently due to

2

over-current or over-voltage failure, in order to guarantee normal work, should consider choosing proper brake package.

(6) Should switch on/off the inverter through terminal or other normal order channels. It is prohibited that switch on/off the inverter frequently by using strong electric switch such as magnetic control conductor, otherwise will cause the equipment to be damaged.

(7) If need to install such switch as the magnetic control conductor, etc. between inverter output and the motor, please guarantee the inverter is switched on/off without output, otherwise may damage the inverter.

(8) The inverter may meet with mechanical resonance of the load within certain range of frequency output, can set up jumping frequency to evade.

(9) Before using, should confirm the voltage of the power is within the working voltage range allowed, otherwise should vary voltage or order special inverter.

(10) In the condition of altitude above 1000 meters, should use the inverter in lower volume, reduce output current by 10% of specified current after each 1500 meters height increasing.

(11) Should make insulation check to the motor before using it for the first time or after a long time placement. Please inspect with 500V voltage-type megohm meter according to method shown as graph and insulation resistance should not be smaller than 5 M

Ω

, otherwise inverter may be damaged.

(12) To forbid assembling capacitor for improving power factor or lightningproof voltage-sensible resistance etc., otherwise will cause malfunction trip of the inverter or damage of the parts, shown as graph 1-1.

Fig.1-1 frequency converter prohibit use of capacitor

3

(13) Remind: EDS780 inverter require long-term work at full capacity, the customer must have an external cooling fan, or it may overheat protection fault and affect the frequency normal life! (Inverter output current below 4A, noneed to use an external fan.)

1.4 Scrap notice points

When disposing scrap inverter and its parts, please note:

(1) The unit: please discard as industrial useless.

(2) Electrolytic capacitor: when burning the inverter electrolytic capacitor in it may explode.

(3) Plastic: when plastic, rubber parts etc. in the inverter are burning, they may bring bad, poisonous gas, so please be ready to safeguards.

4

2 Type and specification of the inverter

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 rated 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

Fig. 2-1 type description

2.3 Series type explanation

Table 2-1 series type explanation

Inverter type

EDS780-2S0007

Rated power

（

KVA

）

1.8

Rated output current

（

A

）

4.7

Adapted motor

（

KW

）

0.75

5

2.4 Outer size and gross weight

A

D

W

Fig.2-2 Outline Image

Inverter type

EDS780-2S0007

Table 2-2 EDS780-2S0007mounting size

W

(mm)

H

(mm)

D

(mm)

A

(mm)

B

(mm)

Fixing aperture

(mm)

147.4 140.0 92.0 135.2

100 5

2.5

Basic running wiring diagram

Fig.2-3 Basic running wiring diagram

6

2.6

The inverter

interface specifications

Fig.2-4

(1) P1 terminal function description item run command symbol name

FWD

Forward run command

REV

Reverse run command

X1

Multi-function input 1

X2

Multi-function input 2

X3

Multi-function input 3

Function description

Spec.

Forward reverse run command, see F5.08 group double-wire and three-wire control function description

Used for multi-function input terminal, for detailed see Chapter

Input impedance: R=2K

Ω

Max. input frequency: 200Hz

Analog value input

VCC

+5V power supply

GND

+5V power supply negative pole

VCI

Analog value input

VCI

Provide +5V power supply.

(negative pole: GND)

Reference ground of analog signal and +5V power supply

Accept analog voltage input

Max. output current: 50mA

Input voltage range:0~5V

(Input impedance:10 K

Resolution:1/1000

Ω

)

7

(2) P2 terminal function description item symbol name Function description spec communication

485A

485B

485 communication interface 485 difference signal negative end please use twisted-pair or

STP

2.7 Operation and use of key board

Keypad is main unit for receiving command, displaying parameter. Outer dimension of EN-KB6 is as Fig.4-2:

Fig.2-5 keypad layout sketch(EN-KB5)

8

3 Function parameter schedule graph

3.1 Symbol description

×

---- parameter can’t be changed in process of running

○

---- parameter can be changed in process of running

* ---- read-only parameter, unmodifiable

3.2 Function parameter schedule graph

F0 –basic run function parameter group

function code name Set range

F0.00 Frequency input channel selection

0: keypad analog potentiometer setting

1: keypad digital setting

2: terminal UP/DOWN adjust setting (stored after power off)

3: serial port setting

4: VCI analog setting (VCI-GND)

6: reserved

7: reserved

8: combination setting

9: terminal UP/DOWN adjust setting

(not stored after power off)

10:provision serial port (stored after power off)

F0.01 Freq. digit setting Lower limit Freq.

～ upper limit Freq.

F0.02 Run command channel selection

F0.03 Run direction setting

0: keypad run control

1: terminal run command control

(keypad stop command ineffective)

2: terminal run command control

(keypad stop command effective)

3: serial port run command control

(keypad stop command ineffective)

4: serial port run command control

(keypad stop command effective)

1

2 st

bit: 0, forward run; 1, reserved nd

bit: 0, forward run allowed

1, reverse run banned

3 rd

bit: REV/JOG key selection

0: as reverse run key

1: as jog key

F0.04 Acce/Dece mode selection

F0.05 S curve start section time

0: linear accelerating decelerating mode

1: S curve accelerating decelerating mode

10.0

（％）－

50.0

（％）

Acce/Dece time

）

F0.05+F0.06

≤

90

（％）

9

1 unit

1

Factory default

1

Modification

○

0.01Hz 50.00Hz

1 0

1 100

0

0.1(

％

) 20.0(%)

○

○

○

×

○

F0.06 S curve rise time 10.0

（％）－

70.0

（％）

Acce/Dece time

）

F0.05+F0.06

≤

90

（％）

F0.07 accelerating decelerating time unit

0: second

1: minute

F0.08 Acce time 1

0.1

－

6000.0

F0.09 Dece time 1

0.1

－

6000.0

F0.10 Upper limit freq. Lower limit freq.

－

400.00Hz

F0.11 Lower limit freq. 0.00

－

Upper limit freq.

F0.12 Lower limit freq. run mode

F0.13 Torque boost mode

F0.14 Torque boost

0: run at lower limit freq.

1: stop running

0: manual boost

1: automatic boost

0.0

－

20.0

（％）

F0.15 V/F curve setting 0: constant torque curve

1: degressive torque curve 1

（ the 2.0nd power

）

2: degressive torque curve 2

（ the 1.7th power

）

3: degressive torque curve 3

（ the 1.2th power

）

F0.16 reserved

0.1(

％

) 60.0(%)

1

1 0

0.1

0.1

20.0

20.0

0.01Hz 50.00Hz

0.01Hz 0.00Hz

1

1

0

0

0.1(%) 4.0(%)

1 0

0

○

×

○

○

×

×

×

○

○

×

×

F1 –start-up, stop, brake function parameter group

Function code name

F1.00 Start-up run mode

Set range

0: start at start-up freq.

1: first brake, then start at start-up freq.

2: reserved

0.0

－

10.00Hz

F1.01 Start-up freq.

F1.02 Start-up freq. duration

0.0

－

20.0S

F1.03 Zero freq. DC braking volt. 0 －

15

（％）

F1.04 Zero freq. DC braking time 0.0

－

20.0S

F1.05 Stop mode

F1.06

F1.07

F1.08

0: Dec stop

1: free stop

2: Dec

＋

DC brake stop

0.0

－

15.00Hz DC brake initiative freq. when stop running

DC brake time when stop running

DC brake voltage when stop running

0.0

－

20.0s

0

－

15

（％） unit

1

1

Factory default

0

Modification

×

0.01Hz 0.00Hz

0.1s 0.0s

1 0

0.1s 0.0s

1 0

0.01Hz 0.00Hz

0.1s 0.0s

0

○

○

○

○

×

○

○

○

Function name

F2 –auxiliary run function parameter group

Set range unit

10

Factory modif-

code

F2.00

F2.01

Analog filter time constant

Forward reverse run dead-section time

F2.02 Automatic energy save run

F2.03 AVR function

F2.04

Slip frequency compensation

F2.05 Carrier wave freq.

0.00

0.0

0: no action

1: action

0: no action

1: action all the time

2: no action only during Dec

0 compensation

1

～

－

－

－

30.00s

3600.0s

150(

％

10.0K

)0-no slip frequency

0.01s

0.1s

1

1

1

0.1K

F2.06 Jog run frequency

F2.07 Jog Acc time

F2.08 Jog Dec time

F 2 .

0 9

F2.10 r e s e r v e d

Principal subordinate

Machine communication frequency provision proportion

F2.11 LED display control 1

F2.12

R e s e r v e d

F2.13 Parameter operation control

0.10

－

50.00Hz

0.1

0.1

0

－

－

60.0s

60.0s

（％）－

500

（％）

0000-1111 first bit: running time

0: not display

1: display second bit: accumulative time

0: not display

1: display third bit: input terminal status

0: not display

1: display kilobit(fourth bit): output terminal status

0: not display

1: display

LED 1st bit:

0: all parameter allowed to be modified

1: except this parameter

， all other parameter not allowed to be modified

2: except F0.01 and this parameter

， all other parameter not allowed to be modified

LED 2nd bit:

0: no action

1: restore default value

2: clear history failure record

LED 3rd bit:

0: lock all buttons

1: lock all buttons but not STOP key

0.01Hz

0.1s

0.1s

1

1(%)

1

1

1 default

0.20s

0.1s

0

0

0 depend on machine type

5.00Hz

20.0s

20.0s

0

100(%)

1111

1111

0 ication

○

○

×

×

×

×

○

○

○

×

○

○

○

×

11

F2.14 Communication configuration

F2.15 Local address

2: lock all buttons but not

，

STOP key

3: lock all buttons but not RUN, STOP key

4: lock all buttons but not SHIFT, STOP key

LED first bit: baud rate selection

0: 1200BPS

1: 2400BPS

2: 4800BPS

3: 9600BPS

4: 19200BPS

5: 38400BPS

LED second bit: data format

0: 1

－

8

－

1format, no checkout

1: 1

－

8

－

1 format, even checkout

2: 1

－

8

－

1 format, odd checkout

0

－

127, 127 is broadcast address. The inverter only receive but not send when it is set to be 127, 0 is address for main device.

F2.16 Communication overtime 0.0

－

1000.0s

F2.17 Local responsion delay

0

－

1000ms

F2.18 Acce time 2

0.1

－

6000.0

F2.19 Dece time 2

0.1

－

6000.0

F2.20 Acce time 3

0.1

－

6000.0

F2.21 Dece time 3

0.1

－

6000.0

F2.22 Acce time 4

0.1

－

6000.0

F2.23 Dece time 4

0.1

－

6000.0

F2.24 Acce time 5

0.1

－

6000.0

F2.25 Dece time 5

0.1

－

6000.0

F2.26 Acce time 6

0.1

－

6000.0

F2.27 Dece time 6

0.1

－

6000.0

F2.28 Acce time 7

0.1

－

6000.0

F2.29 Dece time 7

0.1

－

6000.0

F2.30 Multisection freq. 1

Lower limit freq.

－ upper limit freq.

F2.31 Multisection freq. 2

Lower limit freq.

－ upper limit freq.

F2.32 Multisection freq. 3

Lower limit freq.

－ upper limit freq.

F2.33 Multisection freq. 4

Lower limit freq.

－ upper limit freq.

F2.34 Multisection freq. 5

Lower limit freq.

－ upper limit freq.

F2.35 Multisection freq. 6

Lower limit freq.

－ upper limit freq.

F2.36 Multisection freq. 7

Lower limit freq.

－ upper limit freq.

F2.37 Multisection freq. 8

F2.38

Reserverd

Lower limit freq.

－ upper limit freq.

~

F2.44

F2.45 Jumping freq. 1

0.00

－

400.00Hz

F2.46 Jumping freq. 1 range

0.00

－

30.00Hz

12

1

1

03

1

0.01Hz 0.00Hz

0.01Hz 0.00Hz

0.1s

1ms

0.1

0.0s

5ms

20.0

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

20.0

20.0

0.1 20.0

0.01Hz 5.00Hz

0.01Hz 10.00Hz

20.0

20.0

20.0

20.0

20.0

20.0

20.0

20.0

0.01Hz 20.00Hz

0.01Hz 30.00Hz

0.01Hz 40.00Hz

0.01Hz 45.00Hz

0.01Hz 50.00Hz

0.01Hz 5.00Hz

×

×

×

×

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

×

×

○

F2.47 Jumping freq. 2

F2.48 Jumping freq. 2 range

F2.49 Jumping freq. 3

F2.50 Jumping freq. 3 range

F2.51 Setting run time

F2.52 Accumulative run time

F2.53 RS485communication frame format selection

0.00

－

400.00Hz

0.00

－

30.00Hz

0.00

－

400.00Hz

0.00

－

30.00Hz

0

－

65535 hours

0

－

65535 hours

0: a ASCII frame of 14 byte or 18 byte

1: a hex frame of 8 byte or 10 byte, original response not changed

2: a hex frame of 8 byte or 10 byte, 12 command has no response

3: a hex frame of 8 byte or 10 byte, 14 command has no response

4: a hex frame of 8 byte or 10 byte, both 12 and 14 command have no response

0.01Hz 0.00Hz

0.01Hz 0.00Hz

0.01Hz 0.00Hz

0.01Hz 0.00Hz

1

1

1

0

0

0

F3 group –closed-loop run function parameter group

Function code name

F3.00 Closed-loop run control selection

F3.01 Provision channel selection

F3.02 Feedback channel selection

Set range

0: closed-loop control ineffective

1: PID closed-loop control effective

2: reserved

0: digital provision

1: VCI analog 0

－

5V voltage provision

2: reserved

3: keypad analog potentiometer provision

0: VCI analog input voltage 0

－

5V

1: reserved unit

1

1

1

F3.03

Specified value digital setting

0.00

－

10.00V

F3.04 Minimum specified value 0.0

－ maximum specified value; percentage relative to 10.00V

F3.05 feedback value responding to minimum specified value

0.0(%)

－

100.0(%)

F3.06 maximum specified value

F3.07 feedback value responding to maximum specified value

F3.08 proportion gain Kp

Minimum specified value

0.0

（％）－

0.000

－

100.0

9.999

（％）

－

100.0

（％）

F3.09 Integral gain Ki

0.000

－

9.999

F3.10 Differential gain Kd

0.000

－

9.999

F3.11 Sampling cycle T

0.01

－

1.00s

0.01

Factory default

0

1

1

0.00

0.1

(

%

)

0.0

(

%

)

0.1

(

%

)

0.0

(

%

)

0.001 0.050

0.001 0.050

0.001 0.050

0.01s 0.10s modification

×

○

○

○

○

○

0.1

(

%

)

100.0(%)

○

0.1

(

%

)

100.0(%)

○

○

○

○

○

○

*

×

×

×

×

×

13

F3.12 Deviation margin

F3.13 Integral separation PID adjusting threshold

F3.14 Closed-lop preset frequency

F3.15 Closed-loop preset frequency holding

F3.16 time

Reserved

~

F3.26

F3.27 Closed-loop adjusting characteristic

F3.28 LED initial supervision parameter selection

0.0

－

20.0

（％） percentage relative to 10.00V

0.1(%) 2.0

(

%

)

0.0

－

100.0%

○

0.1(%) 100.0(%)

○

0

－ upper limit frequency

0.0-6000s

0.01Hz 0.00Hz

0.1s

1

1

0.0s

0

1

○

○

○

○

F3.29

F3.31

Zero freq. braking freq. at starting

F3.30 Failure relay TA, TC function selection

V C I a n a l o g i n p u t g a i n

0: Forward function

1: Reverse function

0: set frequency

1: output frequency

2: output current

3: output voltage

4: DC bus bar voltage

5: motor speed

6: heat sink temperature

7: run time

8: accumulative run time

9: input terminal status

10: output terminal status

11: analog input VCI/PID provision

0.00Hz-15.00Hz

0: inverter running

（

RUN

）

1: frequency arriving signal

（

FAR

）

2: frequency level detect signal (FDT1)

3: reserved

4: overload warning alarm signal (OL)

5: output frequency reach high limit

（

FHL

）

6: output frequency reach low limit

（

FLL

）

7: inverter under voltage blockage stop (LU)

8: external failure stop-running

（

EXT

）

9: inverter zero speed running

10: PLC running

11: simple PLC section running finished

12: PLC finish a cycle running

13: reserved

14: inverter ready to run (RDY)

15: inverter failure

16: traverse high and low limit restriction

17: interior counter reach final value

18: interior counter reach specified value

19: set run time arriving

20: interior timing arriving

21~24: reserved

0 8 0 0 %

0.01Hz 0.00 Hz

15

100

○

○

○

14

F4 –simple PLC function parameter group

Function code name

F4.00 Simple PLC running setting

F4.01 Section 1 setting

Set range

LED first bit:

0: no action

1: stop after single circulation

2: keep final value after single circulation

3: consecutive circulation

LED second bit:

0: start again from first section

1: continue to run at mid-section frequency

LED third bit: PLC run time unit

0: second

1: minute

000

－

621

LED first bit: frequency setting

0: multi-section freq. i (i=1~7)

1: freq. determined by F0.00 function code

LED second bit: run direction selection

0: forward run

1: reverse run

2: determined by run command

LED third bit: Acc/Dec time selection

0: Acc/Dec time 1

1: Acc/Dec time 2

2: Acc/Dec time 3

3: Acc/Dec time 4

4: Acc/Dec time 5

5: Acc/Dec time 6

6: Acc/Dec time 7

F4.02 Section 1 run time 0

－

6000.0

F4.03 Section 2 setting

F4.05 Section 3 setting

000

－

621

F4.04 Section 2 run time 0

－

6000.0

000

－

621

F4.06 Section 3 run time 0

－

6000.0

F4.07 Section 4 setting

000

－

621

F4.08 Section 4 run time 0

－

6000.0

F4.09 Section 5 setting

000

－

621

F4.10 Section 5 run time 0

－

6000.0

F4.11 Section 6 setting

F4.13 Section 7 setting

000

－

621

F4.12 Section 6 run time 0

－

6000.0

000

－

621

F4.14 Section 7 run time 0

－

6000.0 unit

1

1

0.1

1

0.1

1

0.1

1

0.1

1

0.1

1

0.1

1

0.1

Factory default

000 modifi cation

×

000

○

10.0

000

10.0

000

10.0

000

10.0

000

10.0

000

10.0

000

10.0

○

○

○

○

○

○

○

○

○

○

○

○

○

15

F5 –terminal correlative function parameter group

Function code name

F5.00 Input terminal X1 function selection

Set range

0: leave control terminal unused

1: multi-section speed control terminal

2: multi-section speed control terminal

3: multi-section speed control terminal

4: multi-section speed control terminal

5: external forward run jog control

6: external reverse run jog control

7: Acc/Dec time option terminal 1

8: Acc/Dec time option terminal 2

9: Acc/Dec time option terminal 3

10: external device failure input

11: external reset input

12: free stop input

13: external stop-running order

14: stop DC braking input command DB

15: inverter run banned

16: frequency increasing control (UP)

17: frequency degression control (DOWN)

18: Acc/Dec ban command

19: three-line run control

20: closed-loop ineffective

21: PLC ineffective

22: simple PLC pause control

23: PLC stop status reset

24: frequency provision channel option 1

25: frequency provision channel option 2

26: frequency provision channel option 3

27: frequency switched to CCI

28: command switched to terminal

29: run command channel option 1

30: run command channel option 2

31: run command channel option 3

32: traverse jump-in

33: external interruption input

34: interior counter reset end

35: interior counter triggering end

36: interior timer reset end

37: interior timer triggering end

38: reserved

Same as above unit

1

F5.01

F5.02

Input terminal X2 function selection

Input terminal X3 function selection

F5.03 reserved

F5.04 reserved

F 5 .

0 5 r e s e r v e d

F5.06 reserved

Same as above

16

Factory default

0 modifi cation

×

×

×

×

×

F5.07 reserved

F5.08 FWD/REV run mode selection

F5.09 UP/DOWN velocity

F5.10 Reserved

F5.11 reserved

F5.12 reserved

F5.13 reserved

F5.14

Frequency arriving

(FAR) checkout scope

F5.15 FDT1 (frequency level) electric level

F5.16 FDT1 lag

0: double-line control mode 1

1: double-line control mode 2

2: three-line control mode 1

3: three-line control mode 2

0.01

－

99.99Hz/s

0.00

－

50.00Hz

0.00

－ high limit frequency

0.00

－

50.00Hz

F5.17 Reserved

F5.18 Analog output (AO) gain 0.00

－

2.00

F5.19 Analog output (AO) offset 0.00

－

10.00V

F5.20 reserved

F5.21 reserved

F5.22 reserved

F5.23 reserved

F5.24 reserved

F5.25

Set interior counting value reaches provision

F5.26

Specified interior counting value reaches provision

0--9999

0--9999

F5.27 Interior timer setting

0.1

－

6000.0s

1 0

×

0.01Hz/s 1.00Hz/s

○

1 0

×

0.01Hz 5.00Hz

○

0.01Hz 10.00Hz

○

1

0.01Hz 1.00Hz

1 0

0.01

0.01

1.00

0.00

0

1

0.1

0

60.0

○

○

○

○

○

○

○

Function code

F6.00

～

F6.07 name

Reversed

F6 –traverse special function parameter group

Set range unit

Factory default modifi cation

F7–frequency provision function parameter group

Function code

F7.00 name

V C I m i n .

p r o v i s i o n

F7.01 VCI min. provision corresponding freq.

Set range

0 .

0 0

－

F7.02

0.00

－ high limit frequency unit

Factory default

0.01V 0.00V

0.01Hz 0.00Hz

17 modifi cation

○

○

F7.02 VCI max. provision

F7.03 VCI max. provision corresponding freq.

F7.04

～

R e v e r s e d

F7.17

0.00

－

10.00V

0.00

－ high limit frequency

0.01V 9.90V

○

0.01 Hz 50.00Hz

○

F8–motor and vector control parameter group

Function code

F 8 .

0 0 name r e s e r v e d

F8.01 Motor rated voltage

F8.02 Motor rated current

F8.03 Motor rated frequency

F8.04 Motor rated speed

F8.05 Motor pole

F8.06 Motor rated power

F8.07 reserved

F8.08 reserved

F8.09 reserved

F8.10 reserved

F8.11 reserved

F8.12 reserved

F8.13 reserved

F8.14 reserved

F8.15 reserved

F8.16 Frequency display offset

F8.17 reserved

Set range

1

－

480V

0.1

－

999.9A

1.00

－

400.00Hz

1

－

9999r/min

2-14

0.1

－

999.9KW

0.00Hz-2.00Hz unit

1V

0.1A

0.01Hz

1r/min

2

0.1

0.01Hz

Factory default

Depend on device type

Depend on device type

Depend on device type

Depend on device type

Depend on device type

Depend on device type

0.20Hz modifi cation

×

×

×

×

×

×

○

F9 –protection correlative function parameter group

Function code name

F9.00 reserved

F9.00 Instantaneous power off restarting latency time

F9.01 Failure self-renew times

Set range

0.0

－

10.0S

0 indicates ineffective power off restarting

Remark: no automatic reset function for overload and overheating

0

－

10

0 shows no automatic reset function

Remark: no automatic reset function for overload and overheating unit

0.1S

1

18

Factory default

0.0S modifi cation

×

0

×

F9.02 Failure self-renew interval

F9.03 Motor overload protection mode selection

F9.04 Motor overload protection coefficient

F9.05

F9.06

Overload warning alarm checkout level

Overload warning

Alarm Delay time

F9.07 Overvoltage stall selection

F9.08 Overvoltage stall point

F9.09 Reversed

F9.10 Reversed

F9.11 Reversed

0.5

－

20.0S

0: no action

1: inverter close off output

20.0-120.0

（

%

）

20

－

200

（

%

）

0.0

－

20.0s

0: ban

1: allow

120-150(%)

0.1S

1

5.0S

1

×

×

0.1(%) 100.0(%)

×

1(%) 130(%)

0.1s 5.0s

1 1

1(%) 140(%)

○

○

×

○

Fd –failure record function parameter group

Function code name

Fd.00 Previous one time failure record

Set range

Previous one time failure record

Fd.01 Previous two time failure record

Previous two time failure record

Fd.02 Previous three time failure record

Previous three time failure record

Fd.03 Previous four time failure record

Previous four time failure record

Fd.04 Previous five time failure record

Previous five time failure record

Fd.05 Previous six time failure record

Fd.06 Set freq. of previous failure

Previous six time failure record

Set freq. of previous failure

Fd.07 output freq. of previous failure output freq. of previous failure

Fd.08 output current of previous failure output current of previous failure

Fd.09 output voltage of previous failure output voltage of previous failure

Fd.10 DC bus-bar voltage of previous failure

Fd.11 Load motor speed of previous failure

Fd.12 Module temperature of previous failure

DC bus-bar voltage of previous failure

Load motor speed of previous failure

Module temperature of previous failure

Fd.13 Input terminal status of previous failure Input terminal status of previous failure

Fd.14 Accumulative run time of previous failure Accumulative run time of previous failure unit

1

1

Factory default

0

1

1

1

1 0

0.01Hz 0

0

0

0

0

0.01Hz 0 modifi cation

*

*

*

*

*

*

*

*

0.1A

1V

1V

1(r/m)

1

℃

0

0

0

0

0

0

0

*

*

*

*

*

*

*

FF –password and manufacturer function parameter group

19

Function code name

FF.00 User password

Set range

0000

－

9 9 9 9

FF.01 Manufacturer password

FF.02

FF.0X

Manufacturer’s special parameter

0000

－

9 9 9 9 unit

1

1

Factory default

0 0 0 0 modifi cation

×

0 0 0 0

×

C –supervision function parameter group

C.06

C.07

C.08

C.09

C.10

C.11

C.12

C.13

C.14

Function code

C.00

C.01

C.02

C.03

C.04

C.05 name Set range

Set frequency

Output freq.

Output current

Output voltage

Current set frequency

Current output freq.

Virtual value of current output current

Virtual value of current output voltage

DC bus-bar voltage Current DC bus-bar voltage

Load motor speed Product of output frequency and load motor speed emendation factor

Module temperature IGBT heat sink temperature

Run time Inverter electrification run time accumulative run time Inverter accumulative run time

Input terminal status Switch value input terminal status output terminal status Switch value output terminal status

Analog input VCI

Analog input YCI

Reserved

Reversed

Analog input value of VCI

Analog input value of YCI

1

℃

1h

1h

――

――

V

V unit

0.01HZ

0.01HZ

Factory default modifi cation

*

0.1A

1V

1V

1(r/m)

*

*

*

*

*

*

*

*

*

*

*

20

4 Troubleshooting

4.1 Failure and countermeasure

Possible failure types in EDS780 are shown in Table 4-1 and failure code is from

E001 to E023. Some failure code is reserved for intelligent automatic diagnosis function which will be executed continuously in future. When failure takes place in the inverter, the user should check according to note of this table firstly and record failure phenomena detailedly. Please contact our after-sale service and technical support Department or agent in your local place when technical service is needed.

Table 4-1 failure type and the countermeasure

failure code failure type

E001 overcurrent during accelerating process possible reason

Accelerating time is too short

Improper V/F curve

Restart rotating motor countermeasure

Prolong accelerating time

Adjust V/F curve setting

， adjust manual torque boost or change to automatic torque boost

Set speed checking restart function

Check input power supply

E002 overcurrent during decelerating process

Low power source voltage

Too small power of the inverter

Decelerating time is too short

Have potential energy load or big inertia load

Choose inverter with high-power

Prolong decelerating time

Increase braking power of external energy consumption braking subassembly

Choose inverter with high-power

E003 overcurrent during constant speed process

Power of inverter is a bit small

Load change suddenly or

Have unwonted phenomena

Accel/Decel time is set to too short low power source voltage

E004 overvoltage during accelerating process

Check or reduce break of the load

Prolong accelerating decelerating time properly

Check input power supply

Power of inverter is a bit small Choose inverter with high-power

Unwonted input voltage Check input power supply

Accel time is set to too short

Restart rotating motor

Prolong accelerating time properly

Set speed checking restart function

21

E005 overvoltage during decelerating process

Decelerating time is too short

Have potential energy load or big inertia load

E006 Overvoltage during constant speed process

Unwonted input voltage

Accel/Decel time is set to too short

Input voltage change abnormally

Load inertia is a bit big

Prolong decelerating time

Increase braking power of external energy consumption braking subassembly

Check input power supply

Prolong accelerating decelerating time properly

Assemble reactor

E007 controlpower supply overvoltage

Unwonted input voltage

E008 Inverter overload Accel time is set to too short

DC injection braking is too big improper V/F curve

Restart rotating motor

Use energy consumption subassembly

Check input power supply or look for service

Prolong accelerating time

Reduce DC injection braking current

， prolong braking time

Adjust V/F curve and torque boost

Set speed checking restart function check power source voltage power source voltage is too low

Load is too big r e s e r v e d

Choose inverter with high-power

E009 Motor overload

E010 inverter heating over improper V/F curve power source voltage is too low

Adjust V/F curve and torque boost check power source voltage

General motor run at low speed with big load motor overload protection factor set incorrectly motor blocked up or load change too suddenly and quickly

Can choose frequency conversion motor for long time low speed run to set motor overload protection factor correctly

Check the load

Air-path blocked To clear air-path or improve ventilation condition

Ambient temperature is too high Improve ventilation condition, lower carrier frequency

Run with large load long time Use fan outside to radiate

E011 reserved r e s e r v e d

22

E012 reserved r e s e r v e d r e s e r v e d

E013 Inverting module protection

Transient overcurrent of the inverter phase to phase short circuit or earthing short circuit of output 3 phase

Refer to countermeasure for overcurrent wiring again

Air-path blocked or fan damaged To clear air-path or replace the fan

Ambient temperature is too high Lower ambient temperature

E014 external failure device

Connecting wire or insert on control board loose

Unwonted current wave caused by missing output phase etc.

Assistant power supply damaged and drive voltage lacking

Unwonted control board use sudden stop

STOP

Check and connect the wire again

Check wiring

Look for service from manufacturer or agent

Look for service from manufacturer or agent

Look up operation mode key in non-keypad run mode

E 0 1 5 r e s e r v e d

E016 RS485 communication failure

Use sudden stopkey

Set running parameter correctly under condition of stall

Sudden stop terminal for external failure closed

Open external failure terminal after external failure is settled r e s e r v e d

Baud rate set improperly

Serial port communication error r e s e r v e d set Baud rate properly press key to reset, look for service

Failure warning parameter set improperly

E 0 1 7

E 0 1 8 r r e s e r e s e r v e d v e d r r

Upper device doesn’t work e s e e s e r r v e d v e d

E019 Under voltage Under voltage

Modify F2.16, F2.17

Check if upper device work and wiring is correct r e s e r v e d r e s e r v e d check spot input voltage

23

E020 System disturbance

Serious disturbance

E 0 2 1 r e s e r v e d

CPU read and write wrongly r e s e r v e d

E 0 2 2 r e s e r v e d r e s e r v e d

E023 E

2

PROM read and Mistake take place when write wrongly read or write control parameter

P.OFF Under voltage Under voltage

Reset by pressing key or add mains filter at power supply input side

Reset by the key-press, look for service r e s e r v e d r e s e r v e d

Reset by pressing

Look for service from manufacturer or agent check spot input voltage

4.2 Failure record lookup

This series inverter can record latest 6 failure code and inverter run parameter of the last failure, to search these informations can redound to finding out reason of the failure.

Failure information is all stored in Fd group parameter

， please enter into Fd group parameter to see about information by referring to keypad operation method. code

Fd.00 content previous one failure record code

Fd.08

Content output current at previous failure

Fd.01 previous two failure record Fd.09 output volt. at previous failure

Fd.02

Fd.03

Fd.04

Fd.05

Fd.06

Fd.07 previous three failure record previous four failure record previous five failure record previous six failure record set freq. at previous failure output freq. at previous failure

Fd.10

Fd.11

Fd.12

Fd.13

Fd.14

—

DC bus-bar vlot. at previous failure load motor speed at previous failure module temp. at previous failure input end state at previous failure

Accu. runtime at previous failure

—

24

5 Maintenance

5.1 Routine maintenance

You must assemble and operate it according to demand listed in this

《 service manual

》 strictly when you use inverter. During run state, temperature, humidity, vibration and aging parts may affect it. To avoid this, it is recommended to perform routine inspections.

Table 5-1 Daily inspection items

period daily periodic

Criterion

√

√

Inspection item

Inspection content

Run state parameter

(1)output current

(2)output voltage

(3)inside temp.

(1)installing ambient

Cooling system

(1)within range of rated value

(2)within range of rated value

(3)temp. increment < 35

(1)good ventilation, unblocked air-path

√

Motor

(1)heating

( 2 ) n o i s e

(1) vibration, heating

(1)no abnormality

( 2 ) e v e n

(1)vibration balanced, proper wind temp.

√

√

Inverter

( 2 ) n o i s e

(3)fixation of lead, terminal

(1)temperature, humidity

Run ambient

(2)dust, water and leakage

( 2 ) w ti h o u t a b n o r m a l s o u n d

(3)fixed screw don’t loose

(1)-10 ~+40

40 ~50 used in lower volume or execute compulsory heat dissipating

(2)no water leakage imprint, no dust

( 3 ) g a s ( 3 ) n o p e c u il a r s m e l l

Recommend to inspect with following instrument:

Input voltage: electric voltmeter

； output voltage: rectifying voltmeter

； input output current: pincers ammeter.

5.2 Inspection and replacement of damageable parts

Some component parts in the inverter will be abraded or bear descending performance for long-term usage

， to assure that the inverter can run stably and reliably, it is recommended to perform defending maintenance and replace corresponding parts if necessary.

25

(1) filter electrolyte capacitance

When frequent-changing load causes increasing pulsant current and aging electrolyte under high ambient temperature, the electrolyte capacitance may be damaged and here should replace it.

5.3 Repair guarantee

(1) Within 18 months from purchasing date, if failure caused by inverter itself takes place under normal conservation and usage, we will provide free repair service.

(2) We will take some upkeep if one of following situations takes place within period of repair guarantee. a. If did not use the inverter according to service manual

》 it under ambient demanded in

《 service manual

》

, which cause failure. b. Failure caused by applying the inverter to non-normal function; c. Failure caused by self-repair, refit which is not already allowed; d. Damage caused by bad keeping, falling down from high place or other extrinsic factor after purchasing the inverter; e. Failure caused by natural disaster or its reason such as unwonted voltage, thunderbolt, water fog, fire, salt corroding, gas corroding, earthquake and storm etc.; f. Make bold to tear up product logo (such as: nameplate etc.); Body serial number don’t accord with that in repair guarantee card.

(3) We calculate service fee based on actual cost, which is subject to contract if any.

(4) You can contact the agent and also our company directly if you have questions.

After repair guarantee period, we shall also provide lifetime charged repair service for our products.

5.4 Storage

The user must pay attention to following points for temporary storage and long-term storage after purchasing the inverter:

(1) Avoid storing the inverter in high temperature, moist place and place of dust, metal powder and assure good ventilation.

(2) Longtime storage will cause electrolyte capacitance of low quality, so must assure that it’s electrified for one time within 2 years and electrification time is not shorter than 5 hours and input voltage must be increased to rated value gradually by voltage adjustor.

26