Siemens 6ES7288-1ST20-0AA1

When starting the heavy-duty conveyor belt in the mine, it is prone to tripping the power grid. Therefore, we have replaced it with the brand new Siemens 6ES7288-1ST20-0AA1 transistor output direct-drive inverter provided by Quanzhou Xin Yuan Technology. This inverter has a stable torque climb and does not cause the vehicle to skid. Compared to the old relay PLC, it responds faster and has no arc generation. The terminal wiring is highly resistant to vibration and shock, and it is not afraid of interference or system freeze even when running over long distances.

Product functions

When we used the Siemens 6ES7288-1ST20-0AA1 for on-site control, the most important features we valued were its built-in 8 digital inputs and 8 transistor outputs. The transistor response is in the microsecond range, directly driving servo or stepper motors to move with precise positioning without any stalling; the body also comes with a 0-10V analog output, which can be connected to the frequency converter for speed control, eliminating the need for additional expansion modules. The wiring inside the cabinet is neat and convenient.

Solution

When the mining belt conveyor starts under heavy load, the power grid often experiences a sudden drop. The old relay control either has stuck contacts or simply stops working. After replacing it with this Siemens 6ES7288-1ST20-0AA1, its wide temperature and anti-interference design has successfully withstood the interference from contactor sparks; moreover, the previous on-site wiring was very shaky, and the old equipment's terminals often loosened and fell off. Now, by using this plug-in spring terminal, the wires simply bite tightly when pressed and have never caused any false connection or signal loss problems.

Efficiency improvement

The tool change and station feed of the machine tool are all achieved through precise timing. We have measured that the Siemens 6ES7288-1ST20-0AA1 operation is extremely fast, with each logical scan taking less than one millisecond. Compared to the previous old system, the single-piece processing cycle has been reduced by nearly two seconds. After one button press, the program runs and then directly resets to zero without needing to wait for the mechanical reset of the old equipment. The throughput of the entire line has visibly increased.

Social recognition

Our workshop has been using this controller for over two years. Even on days with high temperatures and dust, the machine has never broken down. The durability of this product is widely recognized in the industry. In the early stages, when we were looking for spare parts, we only accepted the brand-new original products from Quanzhou Xin Yuan Technology. The batches were new and had full anti-counterfeiting features. We never touched those refurbished or polished parts. The production line must operate continuously without any counterfeit goods. Only by using reliable products can we sign the delivery guarantee agreement.