The voltage problem of the rotary encoder

Rotary encoder is a kind of precision electronic component, which is often used in the field of industrial control. For the use of rotary encoder, an instruction manual will be attached, which will explain in detail some parameters used in the work. Regarding the voltage of the rotary encoder, we will learn about it today. What should I do about the relationship between the rotary encoder and the voltage and the voltage imbalance of the rotary encoder?

The relationship between rotary encoder and voltage

Rotary encoder can't work without voltage, what is the relationship between it and voltage?

Take a look as follows:

1. Release voltage: The release voltage is 10% of the rated voltage. When the residual voltage of the line is too large, the encoder will not release the coupling.

2. Rated voltage of the encoder coil: coupled with normally open contacts, the general requirements for the coil should be applied to the minimum operating voltage overvoltage, low voltage is not recommended, because it will weaken the product’s anti-vibration performance, and collisions in the car It will malfunction.

3. Maximum working voltage: In order to meet the low voltage requirements (60% of rated), automotive relay coils are generally designed for high power consumption. The voltage applied to the coils is longer. Generally, it should be less than 120% of the rated voltage. For the voltage value, you need to contact the manufacturer for technical support. Especially when the high temperature is used, the coil temperature will be too high, and the aging will accelerate the insulation damage of the final coil.

4. Voltage relay drive with transistors and integrated circuits, pay attention to the voltage drop of transistors and integrated circuits and the damage of coil EMF.

What should I do if the voltage of the rotary encoder is unbalanced?

Although many encoders, including internal secret control encoders, have very good performance, some unnecessary failures, such as voltage imbalances, often occur due to operational problems of enterprise users. Generally speaking, this situation should not occur, but because the operator is not paying attention, it will cause the voltage imbalance of the internal control encoder, and the voltage imbalance will also bring great inconvenience to the production. So, how can we solve the problem of voltage imbalance in the internal close control encoder? Are there any requirements for air switches?

Professionals said that in the process of using internally controlled encoders, sometimes small voltage imbalance problems may also cause large current imbalances or even phase loss. This is relatively common and is also an operation. Unskilled or careless performance of personnel. If it is not adjusted in time, the rectifier bridge may be damaged or the electrolytic capacitor may be damaged.

As for the solution to this situation, professionals suggest: If the current of a certain phase exceeds the rated output current of the inverter, then the reactor must be used, so as to avoid the current imbalance situation, and it can also be used in the current imbalance situation. When it appears, protect the machine from damage.