Những lỗi cơ bản của biến tần Schneider

Drive does not start, no error code displayed

Thiết bị không chạy, không có mã lỗi hiển thị

  • If the display does not light up, check the power supply to the drive (ground and input phases connection, see page 20).

Nếu màn hình không sáng lên, kiểm tra việc cấp điện cho thiết bị (nối đất và đầu nguồn, xem trang 20).

  • The assignment of the “Fast stop” or “Freewheel” functions will prevent the drive starting if the corresponding logic inputs are not powered up. The ATV12 then displays nSt in freewheel stop and FSt in fast stop, it will display rdY en freewhell stop. This is normal since these functions are active at zero so that the drive will be stopped if there is a wire break. Assignment of LI to be checked in COnF/ FULL/FUn-/Stt- menu.

Việc chuyển đôi từ  “Freewheel” chức năng “dừng nhanh” hoặc sẽ ngăn chặn các thiết bị bắt đầu nếu tín hiệu vào logic tương ứng không được mở điện. Các ATV12 sau đó hiển thị NST trong dừng freewheel và FSt trong dừng nhanh, nó sẽ hiển thị RDY en freewhell dừng. Điều này là bình thường vì các chức năng đang hoạt động tại số không để các thiết bị sẽ được dừng lại nếu có một break dây. Phân công LI để được kiểm tra trong conf / FULL menu / FUn- / Stt-.

  • Make sure that the run command input(s) is activated in accordance with the selected control mode (parameters Type of control tCC page  48 and 2 wire type control tCt page 51, in COnF/FULL/ I_O-menu).

Hãy chắc chắn rằng các đầu vào lệnh chạy) được kích hoạt phù hợp với các chế độ điều khiển lựa chọn

  • If the reference channel or command channel is assigned to Modbus, when the power supply is connected, the drive displays “nSt” freewheel and remain in stop mode until the communication bus sends a command.

Nếu các kênh tham chiếu hoặc lệnh kênh được gán cho Modbus, khi nguồn điện được kết nối, hiển thị ổ đĩa “nst” freewheel và vẫn còn trong chế độ dừng cho đến khi xe buýt truyền thông sẽ gửi một lệnh.

  • In factory setting “RUN” button is inactive. Adjust parameters Reference channel 1 Fr1 page 62 and Command channel 1 Cd1 page 63 to control the drive locally (COnF/FULL/CtL-menu). See How to control the drive locally page 46.

Trong thiết lập nhà máy nút “RUN” không hoạt động. Điều chỉnh các thông số tham khảo kênh 1 FR1 trang 62 và kênh Lệnh 1 Cd1 trang 63 để kiểm soát các ổ đĩa cục bộ (conf / FULL / CTL-menu). Xem Làm thế nào để kiểm soát các ổ đĩa cục trang 46.

Fault detection codes that cannot be cleared automatically

Phát hiện mã lỗi mà không thể xóa tự động

The cause of the detected fault must be removed before clearing by turning off and then on. SOF and tnF faults can also be cleared remotely by means of a logic input (parameter Detected fault reset assignment rSF page 91 in COnF/FULL/FLt-menu).

 

Code

Name                                                      Possible causes                                      Remedy

CrF1

Precharge

•  Charging relay control fault or

•  Turn the drive off and then back on again

charging resistor damaged

•  Check the connections

•  Check the stability of the main supply

•  Contact your local Schneider Electric

representative

InFI

Unknown drive rating

•  The power card is different from

•  Contact your local Schneider Electric

the card stored

representative

InF2

Unknown or incompatible power

•  The power card is incompatible

•  Contact your local Schneider Electric

board

with the control card

representative

InF3

Internal serial link

•  Communication interruption

•  Contact your local Schneider Electric

between the internal cards

representative

InF4

Invalid industrialization zone

•  Inconsistent internal data

•  Contact your local Schneider Electric

representative

InF9

Current measurement circuit

•  Current measurement is not

•  Contact your local Schneider Electric

correct due to hardware circuit

representative

—-

Problem of application Firmware

•  Invalid application firmware

•  Flash again the application firmware of the

update using the Multi-Loader tool

product

InFb

Internal thermal sensor detected

•  The drive temperature sensor is

•  Contact your local Schneider Electric

fault

not operating correctly

representative

•  The drive is in short circuit or open

InFE

Internal CPU

•  Internal microprocessor

•  Turn the drive off and then back on again

•  Contact local Schneider Electric

representative

Fault detection codes that cannot be cleared automatically (continued)

Phát hiện mã lỗi nhưng không thể xoá tự động (tiếp tục)

 

Code

Name                                                      Possible causes                                      Remedy

OCF

Overcurrent

•  Parameters in the Motor control menu drC- page  57 are not

•  Check the parameters•  Check the size of the motor/drive/load

correct

•  Check the state of the mechanism

•  Inertia or load too high•  Mechanical locking

•  Connect line chokes•  Reduce the Switching frequency SFr

page  59

•  Check the ground connection of drive, motor

cable and motor insulation.

SCF1

Motor short circuit

•  Short-circuit or grounding at the

•  Check the cables connecting the drive to the

drive output

motor, and the motor insulation

SCF3

Ground short circuit

•  Ground fault during running status

•  Connect motor chokes

•  Commutation of motors during

running status

•  Significant current leakage to

ground if several motors are

connected in parallel

SCF4

IGBT short circuit

•  Internal power component short

•  Contact your local Schneider Electric

circuit detected at power on

representative

SOF

Overspeed

•  Instability

•  Check the motor

•  Overspeed associated with theinertia of the application

•  Overspeed is 10% more than Maximumfrequency tFr page 57 so adjust this

parameter if necessary

•  Add a braking resistor

•  Check the size of the motor/drive/load

•  Check parameters of the speed loop (gain

and stability)

tnF

Auto-tuning

•  Motor not connected to the drive

•  Check that the motor/drive are compatible

•  One motor phase loss

•  Check that the motor is present during auto-

•  Special motor

tuning

•  Motor is rotating (being driven by

•  If an output contactor is being used, close it

the load, for example)

during auto-tuning

•  Check that the motor is completely stopped

Fault detection codes that can be cleared with the automatic restart function, after the cause has disappeared

These faults can also be cleared by turning on and off or by means of a logic input (parameter Detected fault reset assignment rSF

page  91).

Code             Name                                 Possible causes                                     Remedy

 

LFFI

AI current lost fault

Detection if:•  Analog input AI1 is configured as current•  AI1 current scaling parameter of

•  Check the terminal connection

0% CrL1 page  52 is greater

than 3 mA

•  Analog input current is lower than

2 mA

ObF

Overbraking

•  Braking too sudden or driving load

•  Increase the deceleration time

too high

•  Install a module unit with a braking resistor if necessary

•  Check the line supply voltage, to be sure that it is under

the maximum acceptable (20% over maximum line supply

during run status)

OHF

Drive overheat

•  Drive temperature too high

•  Check the motor load, the drive ventilation and the

ambient temperature. Wait for the drive to cool down

before restarting. See Mounting and temperature

conditions page  13.

OLC

Process overload

•  Process overload

•  Check the process and the parameters of the drive to be

in phase

OLF

Motor overload

•  Triggered by excessive motor

•  Check the setting of the motor thermal protection, check

current

the motor load.

OPF1

1 output phase loss

•  Loss of one phase at drive output

•  Check the connections from the drive to the motor

•  In case of using downstream contactor, check the right

connection, cable and contactor

OPF2

3 output phase loss

•  Motor not connected

•  Check the connections from the drive to the motor

•   Motor power too low, below 6% of

•  Test on a low power motor or without a motor: In factory

the drive nominal current•  Output contactor open

settings mode, motor phase loss detection is activeOutput Phase loss detection OPLpage 94 = YES. To

•  Instantaneous instability in the

check the drive in a test or maintenance environment,

motor current

without having to use a motor with the same rating as the

drive, deactivate motor phase loss detection OutputPhase loss detection OPL = nO

•  Check and optimize the following parameters: IRcompensation (law U/F) UFr page 58, Rated motor voltageUnS page 57 and Rated motor current nCr page  57 and perform an Auto-tuning tUn page  60.

OSF

Main overvoltage

•  Line voltage too high:

•  Check the line voltage

–  At drive power on only, the

supply is 10% over the maximum acceptable voltage level

–  Power with no run order, 20% over the maximum line supply

  • Disturbed line supply

Fault detection codes that can be cleared with the automatic restart function, after the cause has disappeared (continued)

Code             Name                                 Possible causes                                     Remedy

PHF         Input phase loss                 •  Drive incorrectly supplied or a fuse

 

 
 

blown•  Failure of one phase

•  Use a 3-phase line supply.•  Disable the fault by setting Input Phase loss detection

•  3-phase ATV12 used on a single-

IPL page 94 = nO.

phase line supply

•  Unbalanced load

•  This protection only operates with

the drive on load

SCF5

Load short circuit

•  Short-circuit at drive output

•  Check the cables connecting the drive to the motor, and

•  Short circuit detection at the run

the motor’s insulation

order or DC injection order ifparameter IGBT test Strt page95 is set to YES

SLF1

Modbus communication

•  Interruption in communication on the Modbus network

•  Check the connections of communication bus.•  Check the time-out (Modbus time out ttO parameter

page 97)

•  Refer to the Modbus user manual

SLF2

SoMove

•  Communication interruption with

•  Check the SoMove connecting cable.

communication

SoMove

•  Check the time-out

SLF3

HMI communication

•  Communication interruption with

•  Check the terminal connection

the external display terminal

SPIF

PI Feedback detected fault

•  PID feedback below lower limit

•  Check the PID function feedback•  Check the PI feedback supervision threshold LPI and time delay tPI, page 76.

ULF

Process underload

•  Process underload

•  Check the process and the parameters of the drive to be

fault

•  Motor current below the

in phase

Application Underload thresholdLUL parameter page 55 during a

period set by Applicationunderload time delay ULt

parameter page 55 to protect the

application.

tJF

IGBT overheat

•  Drive overheated•  IGBT internal temperature is too

•  Check the size of the load/motor/drive.•  Reduce the Switching frequency SFr page 59.

high according to ambient

•  Wait for the drive to cool before restarting

temperature and load

 

  • Check the power connection and the fuses.

Faults codes that will be cleared as soon as their causes disappear

The USF fault can be cleared remotely by means of a logic input (parameter Detected fault reset assignment rSF page 91).

 

Code

Name                                 Possible causes                                     Remedy

CFF

Incorrect

•  HMI block replaced by an HMI

•  Return to factory settings or retrieve the backup

configuration

block configured on a drive with a

configuration, if it is valid.

different rating

•  If the fault remains after reverting to the factory settings,

•  The current configuration of

contact your local Schneider Electric representative

customer parameters is

inconsistent

CFI

Invalid configuration

•  Invalid configuration

•  Check the configuration loaded previously.

(1)

The configuration loaded in the

•  Load a compatible configuration

drive via the bus or communication

network is inconsistent. The

configuration upload has been

interrupted or is not fully finished.

CFI2

Download invalid

•  Interruption of download operation

•  Check connection with Loader or SoMove.

configuration

with Loader or SoMove

•  To reset the default re-start the download operation or

restore the factory setting

USF

Undervoltage

•  Line supply too low•  Transient voltage dip

•  Check the voltage and the parameters of UndervoltagePhase Loss Menu USb- page 95.

 

(1) When the CFI is present in the past fault menu, it means the configuration has been interrupted or is not fully finished.

HMI block changed

When an HMI block is replaced by an HMI block configured on a drive with a different rating, the drive locks in Incorrect configuration CFF fault mode on power-up. If the card has been deliberately changed, the fault can be cleared by returning to factory setting.

Fault detection codes displayed on the remote display terminal

 

Code

Name                                 Description

InIt

On initializing itself

•  Micro controller initializing•  Communication configuration search

COM.E (1)

Communication error

•  It has 50ms time out error.•  This message is shown after 220 retry attempts.

A-17 (1)

Key alarm

•  Key has been pressed consecutively for more than 10 seconds.•  Membrane switch disconnected.•  Keypad woken up while a key is being pressed.

cLr (1)

Confirm Fault reset

•  This message appears if the STOP key is pressed when there is a keypad fault.

dEU.E (1)

Drive mismatch

•  Drive type (brand) did not match with keypad type (brand)

rOM.E  (1)

ROM abnormality

•  Keypad ROM abnormality detected by the checksum calculation.

rAM.E (1)

RAM abnormality

•  Keypad RAM abnormality detected.

CPU.E (1)

The other defect

•  The other detected fault.

(1) Flashing

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