Three Methods to Set the Temperature of the Frequency Inverter

Presumably everyone knows too much about frequency converters, because frequency conversion is rarely seen in daily life, but for some professionals, frequency converters are equipment that they often see and need to use, and the natural environment will affect When it comes to machinery and equipment, it will become hot after a long time. How to set the ambient temperature of the frequency converter? How much is the temperature of the frequency converter in use? The frequency converter is used in most industries or mechanical equipment manufacturing machines used. And there will be such equipment in some production and operation equipment. Below I will give you a detailed introduction.

How does the inverter set the temperature?

1. A temperature controller must be used to output a solenoid valve data signal to the frequency converter when the temperature is low, and the solenoid valve with low temperature will be cut off (the frequency converter should be set to multi-stage speed, and the speed is set to 50HZ) frequency converter speeds up the operation. When the temperature is high, output a solenoid valve signal to the frequency converter, and the solenoid valve with high temperature will be cut off (the frequency converter is set to operate at a low speed of 10HZ). This operation is easy to understand.

2. The frequency conversion speed regulator is set to PID control, and the analog input and output of the temperature controller are sent to the analog input of the servo drive as a control signal to form a closed-loop control system. This type of operation is more suitable, and the temperature does not change much.

3. Buy a PID temperature controller, the one with PT100 is more suitable for the temperature sensor, connect the PT100 line to the input end of the temperature controller, connect the output line to the analog input end of the frequency conversion, and set the frequency converter to analog The input gives a data signal. This method is very convenient to adjust the temperature. If the ambient temperature is controlled at one ambient temperature point, the temperature will not be too high or too low.

What is the normal temperature of the inverter?

1. Operating temperature. The living environment matters that need to be paid attention to in the application of frequency conversion speed regulator Pay attention to leave room, it is best to keep it within 40 ℃. In the control cabinet, the servo drive should generally be installed on the upper end of the housing, and the installation specifications in the product manual must be strictly followed. It is absolutely impossible to assemble heating elements or components that are prone to heat close to the bottom of the frequency converter.

2. Working temperature. When the ambient temperature of the frequency converter is too high and the temperature changes greatly, the internal structure of the frequency converter is prone to condensation, and its flame retardancy will be greatly reduced, which may even cause a short-circuit failure safety accident. If necessary, moisture-proof agent and electric heater must be added in the box.

3. Corrosive substances. If the concentration of corrosive substances is high, it will not only corrode the wires of electronic devices, printed circuit boards, etc., but also accelerate the aging of plastic components and reduce the insulation performance. In this case, the control cabinet should be made Closed construction, then ventilated.

4. Vibration and impact. When the electrical control cabinet equipped with frequency conversion speed regulator is subjected to vibration analysis and influence, it will also cause poor contact of electrical equipment. At this time, in addition to improving the impact toughness of the control box, avoiding vibration sources and shocks.