YS7114 three-phase asynchronous motor

The industry pressure is indeed quite high, which can be seen from market feedback. Since June, the market has suddenly entered a quiet period. We don't know the situation of other suppliers, but business on our side is not going well. Maybe this is just the general environment. We need to calm down, do our own work well, and always be ready to serve customers, because there is nothing else we can do. There is a lot of market information, some true and some false, and we cannot judge it. Today, the product we want to introduce is the YS7114 three-phase asynchronous motor. This is the first power level for the 71 frame size, with a power of 250W, which is not very high. Some customers do not need very high power when selecting models, so they can choose this type. Of course, if higher power is needed, there are options of 370W or 550W, with the same installation dimensions. Customers can choose according to their own needs. If you need assistance, please feel free to contact us. Installation A good foundation and correct installation are the basic conditions for the long-term reliable operation of the YS7114 three-phase asynchronous motor. Poor foundations or improper installation can cause abnormal vibration and noise in the motor.

When the head of the installation bolt interferes with the outer circular surface of the motor, please lift the motor away from the docking flange surface, first pass the bolt through the flange installation hole, tighten the bolt until its head does not interfere with the motor, dock the flange, and then tighten the installation bolt. Bolts Foundation Requirements

The foundation for installing the YS7114 three-phase asynchronous motor can be a metal base or a concrete structure platform. Regardless of the type of foundation, it must have sufficient strength and rigidity to support the motor. Installation Requirements Due to manufacturing tolerances and cumulative errors of mechanical components, there may be a gap between the installation plane of the motor feet and the contact plane of the foundation installation. During installation, carefully measure this gap with a feeler gauge. For gaps larger than 0.05 mm, appropriate shims should be inserted. The size of the shims should be matched according to the actual gap value. The motor is installed vertically with the drive end shaft facing upward. It is recommended to take necessary protective measures to prevent liquid from entering the motor along the motor shaft. Ensure proper cooling Failure to pay attention to the following instructions may result in property damage, serious injury, or death. Do not block ventilation. Prevent exhaust gas from adjacent units from being directly inhaled. For vertically installed motors with upward-facing air inlets, prevent foreign objects and water from entering through the air inlets. For motors with upward-facing shaft ends, prevent liquid from flowing into the motor along the shaft ends. For motors with external fans, design the circuit to prevent the main motor from starting and running when the external fan is not operating. Junction Box The junction box is installed on the top or side (left or right) of the motor and can be rotated in 4×90° directions to facilitate cable entry from multiple angles. 3.3 Dynamic Balance and Coupling To ensure a quiet, vibration-free operating environment, appropriate axial and radial alignment must be performed on transmission couplings (couplings, pulleys, fans, transmissions, etc.).

The dynamic balance method for the rotor of the YS7114 three-phase asynchronous motor is half-key balance. The dynamic balance method is marked on the motor nameplate (H indicates half-key balance). Note To ensure vibration-free operation, the dynamic balance method for transmission couplings is half-key balance; when adjusting the fit of transmission couplings, the temperature environment of the coupling and the motor must be considered; when no transmission components are connected before the motor starts, the key on the motor shaft must be removed. Electrical Connections All work must be performed by skilled workers. Before performing any work on the YS7114 three-phase asynchronous motor, ensure that the motor is disconnected from the main power supply and auxiliary power supply, and ensure that the power supply cannot be accidentally turned on.

Typically, there are six power supply terminals and one ground terminal in the motor's junction box. All motors are suitable for bidirectional rotation (forward or reverse), and the motor direction can be changed by adjusting the phase sequence of the power supply. Power Connection The coils of the three-phase asynchronous motor can be connected in star or delta configurations. Allowable voltage deviation is ±5%, and frequency deviation is ±2%.