120V 60Hz Ac Only Light Bulb
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FAQ
- Jd1a-40 motor speed controller and how to connect the motor
- First, variable pole alignment speed method This method of speed control is to change the stator winding winding red method to change the cage motor stator pole pairs to reach the speed control target, the characteristics are as follows: This method is suitable for production machinery which does not need stepless speed regulation, such as metal cutting machine, lift, lifting equipment, fan, water pump and so on. Second, the frequency control method Frequency control is to change the frequency of the motor stator power supply, thus changing the speed of its synchronous speed control method. Frequency converter system can be divided into exchange - DC - exchange converter and exchange - exchange inverter two categories, most of the current domestic use of cross - straight - cross frequency converter. Its characteristics: This method is suitable for the requirements of high precision, better speed performance.
- How to choose the right inverter?
- , fan, pump load This is the most suitable for use in frequency conversion speed of the scene environment, the inverter function technology is not too high requirements, the use of inverter energy saving effect is remarkable. For example: a large-scale heating equipment in a large-scale heating system, including blower, induced draft fan (centrifugal fan) inverter configuration configuration with the power of the P-type machine; water pump (centrifugal pump) inverter configuration configuration with the power of the P-type machine ; Conveyor pump frequency converter selection configuration with the power of G-type machine; belt machine (coal feeder) inverter configuration configuration to enlarge a file of the G-type machine; slag converter inverter configuration configuration to enlarge a file of the G-type machine; Crusher (coal crusher) inverter configuration configuration to enlarge a file or two stalls of the G-type machine.
- 400w 6-pole motor should be equipped with much of the inverter?
- 400w 6-pole motor with frequency converter, as long as 1kw inverter can be a.
- Short-term short-circuit converter DC link positive and negative will damage the inverter?
- the switch signal Is the fan running up after the speed line is low, this can be shorted. Pulse is every turn a circle, send two pulses to the speed line
- What is the single axis of the inverter and multi-axis applications
- The frequency changer mainly consists of rectification (alternating current direct current), filter, re-rectification (DC variable AC), brake unit, drive unit, detection unit micro-processing unit and so on.
- What is the base blockade in the drive?
- Base blockade is to deal with ul or ce such a special application of security agencies means that when the parking limit action after the base blockade even if the program can not malfunction, relative to the emergency stop circuit more harsh they will directly disconnect the power
- Is the laptop power adapter high temperature normal? Is there anything else?
- Normal, my power adapter is also very hot, generally ignore
- How do I select a drive? Which brand is better
- ???4, when the inverter is used to control several motors in parallel, be sure to consider the inverter to the motor cable length of the sum of the inverter in the allowable range. If you exceed the specified value, to enlarge one or two steps to select the inverter. In addition, in this case, the inverter control mode can only be V / F control mode, and the inverter can not protect the motor over-current, overload protection, this time in each motor on the fuse to achieve protection. ????5, for some special applications, such as high ambient temperature, high switching frequency, high altitude, etc., this time will cause the inverter derating, the inverter need to enlarge a file selection. ????6, the use of inverter control high-speed motor, due to high-speed motor reactance small, high harmonics also increase the output current value. Therefore, when selecting a frequency converter for a high-speed motor, it should be slightly larger than the inverter of an ordinary motor. ????7, the inverter for the variable pole motor, should pay full attention to select the inverter capacity, so that the maximum rated current in the inverter rated output current below. In addition, in the operation of the number of pole conversion, you should first stop the motor work, otherwise it will cause the motor idling, bad will cause damage to the inverter.
