Bảng mã lỗi biến tần Emerson Commander SK SP ES thường gặp và cách khắc phục

Khi biến tần Emerson Commander SK, SP, SE … dừng hoạt động giải trí mà không biết rõ nguyên do do đâu thì tất cả chúng ta phải dựa vào bảng mã lỗi hiển thị trên màn hình hiển thị để phán đoán biến tần đang gặp lỗi gì và hướng khắc phục ra làm sao. Sau đây RITECH sẽ phân phối những mã lỗi thường gặp ở biến tần Emerson Commander SK thường gặp và nêu rõ nguyên do lỗi, hướng dẫn khắc phục ra làm sao với lỗi đó

Bảng mã lỗi biến tần Emerson Commander SK

Mã lỗi	Tình trạng	Nguyên nhân gây ra lỗi Bạn đang đọc: Bảng mã lỗi biến tần Emerson Commander SK SP ES thường gặp và cách khắc phục
UU	DC Bus under voltage	Low AC Supply Voltage Low DC Bus voltage when supplied by an external DC power supply
OU	DC Bus over voltage	Deceleration rate set too fast for the inertia of the machine Mechanical load driving the motor
OI.AC**	Drive output instantaneous over current	Insufficient ramp times Phase to phase or phase to ground short circuit on the drives output Drive requires autotuning to the motor Motor or motor connections changed, re-autotune drive to motor
OI.br**	Braking Resistor instantaneous over current	Excessive current in braking resistor Braking resistor value to small
O.SPd	Over Speed	Excessive motor speed (typically caused by a mechanical load driving the motor
tunE	Autotune stopped before completion	Run command removed before autotune compelte
It.br	I2t on Braking Resistor	Excessive braking resistor energy
lt.AC	l2t on drive output current	Excessive Mechanical load High impedance phase to phase or phase to ground short circuit at drive output Drive requires re-autotuning to motor
O.ht1	IGBT over heat based on dries thermal model	Over heat software thermal module
O.ht2	Over heat based on drives heatsink	Heatsink temperature exceeds maximum allowable
th	Motor thermistor trip	Excessive motor temperature
O.Ld1*	User +24v or digital output overload	Excessive load or short circuit on +24v output
cL1	Analogue input 1 current mode, current loss	Input current less than 3mA when 4-20 or 20-4mA modes selected
SCL	Serial communication loss time-out	Loss of communication when drive is under remote control
EEF	Internal Drive EEPROM trip	Possible loss of parameter values
PH	Input phase imbalance or input phase loss	One of the input phases has become disconnected from the drive (applies to 200/400v three phase drives only, not dual rated drives.
rS	Failure to measure motors stator resistance	Motor too small for drive Motor cable disconnected during measurement
C.Err	SmartStick data error	Bad connection or memory corrupt within SmartStick
C.dAt	SmartStick data does not exist	New/empty SmartStick being read
C.Acc	SmartStick read/write error fail	Bad connection or faulty SmartStick
C.rtg	SmartStick/drive rating change	Already programmed SmartStick read by a drive of a different rating
O.cL	Overload on current loop input	Input current exceeds 25mA
HFxx trip	Hardware faults	Internal drive hardware fault

* The Enable / Reset terminal will not reset an O.Ld 1 trip. Use the Stop / Reset key
* * Thes e trips cannot be reset for 10 seconds after they occur

Xem thêm: Cách sửa chữa biến tần Emerson

Bảng mã lỗi phần cứng Hardware Fault Codes (HF)

HF04 – Low DC bus at power up – may indicate an AC Input or pre-charge problem

HF05- No internal handshake signal from second processor (DSP) at start up
HF06- Unexpected interrupt
HF07- Watchdog failure

HF08- Interrupt crash (code overrun)
HF11- Access to the EEPROM failed- tried to read stored parameter data but failed
HF20- Power stage – code error Tried to read power board and read back erroneous

HF21 – Power stage – unrecognized frame size
HF22 – Overcurrent detection at power up – possible output short or bridge failure
HF23 – DSP software overrun
HF25 – DSP Communications failure – communication from main to 2 nd processor

HF26- Soft start relay failed to close; or soft start monitor failed; or braking
IGBT short circuit at power up

HF27 – Power stage thermistor fault
HF28 – Power circuit thermistor 2 or 3 fault Internal fan fault on size 3 only
HF29 – Fan failure ( current too high – only on drives with a fan )
HF31 – Internal Cap Bank Fan failure – check for fan rotation / blockage Size 4 and up
HF32 – Power circuit temperature feedback multiplexer failure

Xem thêm: Dịch vụ sửa chữa biến tần nhanh chóng chuyên nghiệp số 1 Việt Nam

Thông tin chi tiết hơn về mã lỗi HF

HF04 – A low DC bus voltage was detected .
HF05 – The Digital Signal Processor ( DSP ) failed to produce any signal at startup
HF06, HF07, HF08 – While the user code is running, it is continuously checking that the data it is receiving is valid etc. If it detects a problem, it will trip on one of the trips codes HF06, HF07 or HF08 .
HF11 – All communication attempts to the EEPROM are denied .

HF20 – A fault was detected on the power board as the Drive was powered up.

HF21 – The DSP reads a voltage from the power PCB to determine the correct Drive kW size. If the voltage is different to an expected value, the Drive will trip .
HF22 – If the drive detects an OI – overcurrent trip on power up, the Drive will trip on HF22 and not OI. Remove drive enable ( B4 ) and motor leads and re-try .
HF23 – The user interface code ( DSP based ) run on different priority levels and each level has a certain time to complete its tasks. If for some reason the code cannot complete its task within the allotted time the Drive trip .
HF25 – A failure of communications between the DSP and control PCB microprocessor .
HF26 – There is a critical problem of the inrush circuit of the power board .
HF27 – The thermistor has failed or has measured a value out of tolerance .
HF28 – Power circuit thermistor 2 or 3 fault – Internal fan fault on Size 3 only DSP – is Digital Signal Processor – 2 nd processor running in conjunction with the main drive processor .
HF29 – If the SK is fitted with a heatsink fan then it is failing and drawing excessive current .
HF29 is typically an indication that the cooling fans at the bottom of the Drive are not spinning. With power off and Drive discharged, one should check into the fan area to check for foreign debris to see that the Fan ( s ) can spin freely .
HF30 – DCCT wire break trip from power module

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