The output of the inverter is controlled by PWM (pulse width modulation, similar to high-speed switching), so a high frequency leakage current will occur, if you want to install a general leakage disconnect switch on the primary side of the inverter, it is recommended to select a sensitivity current of more than 200mA for each inverter and the action time is 0.1 seconds ...

1. The switching signal of PLC controls the inverter The PLC can control the start, stop and reset of the inverter through the program; It can also control different combinations of high-speed, medium-speed and low-speed terminals of the inverter to achieve multi-stage speed operation. However, because it is controlled by switching ...

International electrical safety standards: The requirements are in line with international electrical safety standards, such as CE standards in Europe and UL specifications in United States. These specifications specify the requirements for electrical safety functions, mechanical safety functions, EMC functions, etc. ...

1) Find out the basic parameters and appearance of the equipment that needs to be replaced. The basic parameters include the rated operating current, the capacitance of the capacitor, the resistance value of the resistor, the value of the GTR Darlington device (current amplification factor), the switching characteristics and saturation voltage of the IGBT (including IPM) device, etc.

1) Query and query fault phenomena. The fault phenomenon of the inverter is varied, for example, the same type of problem may have different problem phenomena, and different types of problems may have the same kind of problem, which brings difficulties to find the problem. However, the problem phenomenon is the fundamental basis for repairing the inverter ...

1. Transfer heat pipes for heat dissipation. In many applications, the heat generated from the base steel plate of the power module is transferred through the heat transfer components to the distant heat pipe surface. In this way, the temperature of the base steel plate of the power module will be equal to the temperature of the heat pipe heat dissipation surface, the temperature of the heat transfer parts, and the temperature of the two contact ...

1. When the servo motor of the robot is running at a very low speed, it is fast and slow, just like a creeping machine. Low-speed prostrate servo motors are usually caused by low system gain. Please adjust the parameter N.10.N.11.N.12 to adjust the system gain appropriately, or the automatic gain adjustment function of the running driver ...

The system power is equal to the product of the power of a general-purpose inverter and the power of the motor. As long as both work efficiently, the system power will be higher. From the perspective of power, when choosing VFD power, you should pay attention to the following points: VFD ...

The first way to use the inverter is to change the output frequency to achieve the controllability of the motor speed, so do you know what steps to complete the output frequency controllability? One of the first and foremost key points is how to complete the change of the frequency signal supplied by the inverter equipment.

Assuming Icu=60KA, then when a faulty current of 60KA is generated in the line, the circuit breaker can safely cut off the circuit without abnormal conditions such as contact welding and blasting. Pay attention to the extreme breaking ...

1. Direct launch The universal inverter insists on starting at the beginning of the time according to the set starting frequency and starting frequency, and then accelerates to a given frequency according to the selected acceleration time Second, the speed of the tracking start Universal inverter ...

1. The starting time is different: light load generally refers to the small inertia of the equipment load, and the energy storage balance time of the demand for start-up is short, that is, the starting time is short. Heavy load generally refers to the long time of energy storage balance when the equipment load inertia is large and needs to be turned on, that is, the time of start-up. 2. The requirements for working current are not ...

1. Transfer heat pipes for heat dissipation. In many applications, heat generated from the base steel plate of the power module is transferred through the heat transfer components to the distant surface of the heat pipe. In this way, the temperature of the base steel plate of the power module will be equal to the temperature of the heat pipe heat dissipation surface, the temperature of the heat transfer parts, and the temperature of the two contact ...

Soft Starter Repair Problem: F 04 (Input Phase Loss): There are several factors that cause this problem, some of which are listed below: (1) Check whether the wiring between the incoming power supply and the motor is loose; (2) Whether the output is connected to the load, and whether the load is matched with the motor; (3) ...

1. VFD should be operated in an environment above minus 10°C as much as possible, and it is best to operate indoors. 2. When the VFD is started and stopped, try to start and stop with the VFD itself, do not close the power supply, and keep your VFD in a power-on state. 3. Give VFD l ...

The selection of the acceleration form and deceleration form of the inverter is also called the selection of acceleration and deceleration curves. Generally, there are several forms of inverter, such as linear, S-shaped, semi-S-shaped, etc., and the characteristics and uses of each form are as follows. 1. Linear form The form makes the inverter ...

1. The soft starter does not start and the fault-free code appears, perhaps because the control power supply is not connected, the solution is to check the power supply of the control power supply to see if the circuit connection is correct. 2. The motor starts when the motor announces a hum/no start signal, perhaps because of the thyristor/module ...

Voltage level: The voltage level should match the voltage level of the power supply and motor to ensure electrical safety and normal operation of the equipment. Current level: The current level should match the rated current of the motor to ensure electrical safety and normal operation of the equipment. Cable Specification: Cable ...

1. The inverter itself has a strong electromagnetic disturbance, which will disturb the work of some equipment, so we can add a cable sleeve to the output cable of the inverter. 2. The control line in the inverter or control cabinet is at least 100mm away from the power cable, etc. ...

The cost performance of Reynolds JJR5000 soft starter is relatively high, which is mainly reflected in the following aspects: 1. The price is more reasonable: compared with other similar products, the price of Reynolds JJR5000 soft starter is more affordable, and the price is in a more advantageous position among the products of the same level.

Reynolds inverter problem code: E.ITE Reynolds inverter problem phenomenon/type: Problems with the current sensing circuit Possible causes of Reynolds inverter problems: 1. Poor contact of the control board connector 2. The auxiliary power supply is damaged 3. Hall ...