| Fault code |
Fault description | Possible causes | Remedy |
| Err02 | Over-current during acceleration |
Too fast acceleration | Increase acceleration time |
| Too low input voltage | Check the input power supply or wiring |
||
| Lower-rating controller | Replace with higher-rating controller |
||
| Err03 | Over-current during deceleration |
Too-fast deceleration | Increase deceleration time |
| Too-heavy and large-inertia load | Add proper braking units | ||
| Err04 | Over-current at constant running speed |
Sudden change of load | Check the load |
| Too low input voltage | Check the input power supply or wiring |
| Fault code |
Fault description | Possible causes | Remedy |
| Lower-rating controller | Replace with higher-rating controller |
||
| Err05 | Over-voltage during acceleration |
Abnormal input voltage | Check input power |
| Restart the motor when instantaneous trip-off occurs |
Avoid prompt restart when trip-off |
||
| Err06 | Over-voltage during deceleration |
Too-fast deceleration | Add proper braking units |
| Abnormal input voltage | Check input power supply or wiring |
||
| Err07 | Over-voltage at constant running speed |
Abnormal input voltage | Adjust input voltage to normal range |
| Err08 | Overload of buffer resistor |
Abnormal input voltage | A nodrjmusatlirnapnugtevoltage to |
| Err09 | Under voltage of DC bus |
Too-low input voltage | C whireicnkg input power supply or |
| Err10 | Controller overload | Too fast acceleration | Increase acceleration time |
| Restart the motor when instantaneous trip-off occurs |
Avoid prompt restart when trip-off |
||
| Too-low input voltage | Check input power supply or wiring |
||
| Too-heavy load | Replace with higher-rating controller |
||
| Err11 | Motor overload | Incorrect setting of FA.01&FA.02 |
Set the parameters correctly |
| Load too heavy or motor stuck | Reduce load， or check the motor |
||
| Err12 | Input phase loss | Abnormal input power source | Check input power source and wiring |
| Fault code |
Fault description | Possible causes | Remedy |
| Power board or control board failure |
Look for technical support | ||
| Err13 | Output phase loss | Broken wires in the output cable | Check the wiring and installation |
| Broken wires in the motor winding |
|||
| Loose output terminals | |||
| Err14 | Controller overheat | Instantaneous over-current of controller |
Refer to over-current remedy |
| Output short circuit | Re-wiring of output | ||
| Too-high ambient temperature | Decrease the ambient temperature if possible |
||
| Loose cables or terminals | Inspect and tighten the wire and terminals |
||
| Abnormal power circuit | Ask for support | ||
| Abnormal control PCB board | |||
| Err15 | External fault | External fault signal through DI terminals |
Check external faults |
| Err16 | Communication fault |
Improper baud rate setting | Set proper baud rate |
| Abnormal working of upper machine |
Check upper machine | ||
| Long-time communication interruption |
Check communication devices and cables |
||
| Err17 | Relay failure | Relay cannot pick up | Change relay or look for technical support |
| Err18 | Current detection fault |
Amplifying circuit abnormal | Ask for technical support |
| Hall sensor is damaged |
| Fault code |
Fault description | Possible causes | Remedy |
| Power circuit abnormal | |||
| Err19 | Motor tuning failure |
Incorrect settings of motor parameters |
Set motor parameters according to motor plate |
| Err21 | Parameters writing & reading failure |
Control board failure. | C lohoaknfgoeratencohthneicrablosaurpdpoorrt |
| Err22 | EEPROM checking failure |
EEPROM damaged | Ask for technical support |
| Err24 | Water shortage fault |
Water shortage of water source | Stop the controller Repair broken wiring or replace water level switch |
| Verify if the setting of FD.12 “Water shortage detection current ratio” is too high, while FD.10 “Water shortage detection time” is non-zero and the current sensing is enabled. |
Reduce setting value of FD.12 |
||
| Err26 | Running time reached |
Accumulated running time reached set value |
Restore factory settings |
| Err29 | Powering time reached |
Accumulated powering time reached set value |
Restore factory settings |
| Err31 | PID feedback loss when running |
Abnormal PID feedback signal | Check PID signal |
| PID feedback signal is below detect value |
Adjust PID feedback detect value and detect time |
||
| Err40 | Overtime fault of fast-current limit |
Load too heavy or motor stuck | Reduce load， or check the motor |
| Rate of controller too small | Change upper rate controller | ||
| Err98 /99 |
Internal Communication |
Poor contact between keyboard and control board |
Check connect cable |
| Fault code |
Fault description | Possible causes | Remedy |
| fault | Keypad failure | Look for technical support | |
| Lou | Alarm for low water level at intake |
The inlet low-water float ball terminal is closed for conduction |
Check the intake pond for water shortages |
| FUL L |
Alarm of high water level at outlet |
The high water level float terminal of the outlet tank is closed for conducting |
Check to see if the water level is fu |
