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Lỗi biến tần LS IS
VINITECH chuyên sửa chữa biến tần, servo tại Đồng Nai, Bình Dương...
Lỗi biến tần LS IS
| Keypad Display | Protective Function |
Description | |
| LCD | 7-Segment | ||
| Over Current 1 | OC1 | Over Current Protection |
The inverter turns off its output when the output current of the inverter flows more than 200% of the inverter rated current. |
| Ground Fault | GF | Ground Fault Protection |
The inverter turns off its output when a ground fault occurs and the ground fault current is more than the internal setting value of the inverter. Over current trip function may protect the inverter when a ground fault occurs due to a low ground fault resistance. |
| Over Voltage | OV | Over voltage protection |
The inverter turns off its output if the DC voltage of the main circuit increases higher than the rated value when the motor decelerates or when regenerative energy flows back to the inverter due to a regenerative load. This fault can also occur due to a surge voltage generated at the power supply system. |
| Over Load | OLT | Current Limit Protection (Overload Protection) |
The inverter turns off its output if the output current of the inverter flows at 180% of the inverter rated current for more than the current limit time (S/W). |
| Fuse Open | FUSE | Fuse Open | The inverter turns off its output by opening the fuse when something is wrong with the main circuit IGBT to protect the wiring from being damaged from short currents. |
| Over Heat | OH | Heat Sink Over Heat |
The inverter turns off its output if the heat sink over heats due to a damaged cooling fan or an alien substance in the cooling fan by detecting the temperature of the heat sink. |
| E-Thermal | ETH | Electronic Thermal | The internal electronic thermal of the inverter determines the over heating of the motor. If the motor is overloaded the inverter turns off the output. The inverter cannot protect the motor when driving a multi-pole motor or when driving multiple motors, so consider thermal relays or other thermal protective devices for each motor. Overload capacity: 150% for 1 min |
| External-A | EXTA | External fault A | Use this function if the user needs to turn off the output by an external fault signal. (Normal Open Contact) |
| External-B | EXTB | External fault B | Use this function if the user needs to turn off the output by an external fault signal. (Normal Close Contact) |
| Low Voltage | LV | Low Voltage Protection |
The inverter turns off its output if the DC voltage is below the detection level because insufficient torque or over heating of the motor can occurs when the input voltage of the inverter drops. |
| Over Current 2 | OC2 | IGBT Short | The inverter turns off the output if an IGBT short through or an output short occurs. |
| Phase Open | PO | Output Phase open |
The inverter turns off its output when the one or more of the output(U, V, W) phase is open. The inverter detects the output current to check the phase open of the output. |
| BX | BX | BX Protection (Instant Cut Off) |
Used for the emergency stop of the inverter. The inverter instantly turns off the output when the BX terminal is turned ON, and returns to regular operation when the BX terminal is turned OFF. Take caution when using this function. |
| Option (**) | OPT | Option Fault | Fault at the internal option of the inverter. |
| HW-Diag | HW | Inverter H/W Fault |
A fault signal is output when an error occurs to the control circuitry of the inverter. There are the Wdog error, the EEP error, and the ADC Offset for this fault |
| COM Error CPU Error |
Err | Communication Error | This fault is displayed when the inverter cannot communicate with the keypad. |
| Keypad Display | Protective Function |
Description | |
| LCD | 7-Segment | ||
| LOP LOR LOV LOI LOX |
PL RL VL IL XL |
Operating Method when the Frequency Reference is Lost |
According to the I/O-48 [Operating Method when the Frequency Reference is Lost] setting, there are three modes: continue operation, decelerate and stop, and free run, LOP: Displayed when option frequency reference is lost (DPRAM time out) LOR: Displayed when option frequency reference is lost (Communication network fault) LOV: Displayed when ‘V1’analog frequency reference is lost. LOI: Displayed when ‘I‘analog frequency reference is lost. LOX: Displayed when sun-board (V2, ENC) analog frequency reference is lost. |
| Inv. OLT | IOLT | Inverter Overload | The inverter turns off its output when the output current of the inverter flows more than the rated level (150% for 1 minute, 200% for 0.5 seconds). |
| NTC open | NTC | Thermal Sensor Opened |
Inverter uses NC thermal sensor for detecting heat sink temperature. If this message is displayed, the thermal sensor wire may be cut. (Inverter keeps operating) |
| Over Speed | OSPD | Overspeed | Inverter shuts off its output when a motor rotates at the frequency exceeding 20 Hz of its max speed. |
| MC Fail | MCF | M/C Fail | It is displayed when input power is not applied or M/C inside the inverter malfunctions. |