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Lỗi biến tần RM5
VINITECH chuyên sửa chữa biến tần, servo tại Đồng Nai, Bình Dương...
Lỗi biến tần RM5
| (OC) | Drive over current The output current of drive during operation exceeds 220% of drive’s rated current. |
●The output terminals of drive are short. ●The load is too heavy. ●The acceleration time is too short. ●Drive is immediately restarted after coast to stop. |
●Check wires of U/T1,V/T2,W/T3 terminals to verify if there is short between terminals. ●Check the motor and drive compatibility. ●Check if the motor operated in over-rated condition. |
| (GF) | Grounding fault ●The three-phase output current is unbalance and exceeding the detection level of grounding fault. ●Grounding fault protection: F_098 |
The output terminal of the drive is short or grounding. |
Check the insulation value of motor and the shield of motor’s wire. |
| (OE) | Over voltage ●The internal DC bus voltage of drive is over the protection level. ●100V / 200V series: About DC410V. ●400V series: About DC820V. |
The deceleration time of motor is too short causing the regeneration voltage on DC bus too high. |
Increase the ―deceleration time‖ or use high torque braking and dynamic brake unit to reduce input voltage. |
| Power voltage is too high. |
Check if the power input is within drive’s rated input range. |
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| (OH) | Drive overheating The temperature of drive’s heat sink reaches the 105℃. |
●The surrounding temperature is too high. ●The heat sink has foreign body. ●The cooling fan of drive is fault. |
●Improve the system ventilation. ●Clean the foreign body on the heat sink. ●Return the drive to replace the cooling fan. |
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| Display | Description | Cause | Troubleshooting |
| (OL) | Motor overload Operation current exceeds 150% of motor’s rated current and reaches the motor overload protection time. |
●Motor is overloaded. ●The voltage setting of V/F pattern is too high or too low. ●The current setting of motor’s rated current is invalid. |
●Check the load of motor. ●Check if the acceleration or deceleration time is too short. ●Check if V/F setting is proper. ●Check if the rated current setting is valid. |
| (OL1) | Drive overload Operation current exceeds 150% (120% for P type) of drive’s rated current and continues for 1 minute. |
●Motor overload. ●The voltage setting of V/F pattern is too high or too low. ●Drive capacity is too small. |
●Check the load of motor if overload. ●Check if the acceleration or deceleration time is too short. ●Check if V/F setting is proper. ●Select the higher capacity of drive. |
| (OLO) | System overload ●Load system is overload and the operation current reaches the active level. ●Detection level: F_068. ●Detection time: F_069. |
－－－ | Check the usage of mechanical equipment. |
| (thr) | External fault | The multi-function terminal receives the external fault signal. |
Clear the external fault and then press key. |
| (PAdF) | Keypad interruption during copy |
●The connecting wire of the keypad is loosen. ●The keypad jack of the drive is oxidized. |
Check the connecting wire of keypad |