Has anyone used the Continental PC3000 system?

You should just use a single-circuit regulator.

Depending on the number of temperature points, a single-channel or multi-channel temperature digital display (control) instrument can be selected. This product is produced by Shangrun, Hongrun and Zhejiang University Instrument Company.

network 6000 only

PC3000 is a new generation of fully digital power regulator. Haha In essence, the European PC3000 is not popular in China. In essence, constant temperature heating generally uses the following structure: Temperature measurement original component---》Single-loop PID regulator---》Power adjustment board---》The thyristor heating load is generally connected to the back end of the thyristor. Heating thyristors are generally divided into two types: 1. Phase-shift trigger type. 2. The power adjustment of zero-crossing triggered phase-shift triggered thyristor is mainly reflected in the adjustment of voltage. Phase-shifting silicon has the concept of conduction angle. The general understanding is this. The input voltage of the front end of the thyristor is AC220V. When it is turned on at different phases, the output voltage of the back end of the thyristor will be different. For example, when fully conductive, the output voltage is AC220V and the power is 100%. When semi-conductive, the output voltage is AC110V and the power is 25%. ； When 1/3 is turned on, the output voltage is AC73V and the power is 11%. This is the essence of phase-shifting power. The so-called "trigger". The regulator output is generally a 4-20mA signal. It has a dedicated trigger board (power adjustment board) that accepts 4-20mA current, and then uses phase-locked loop technology to convert it into 3 trigger voltage signals and send them to the thyristor. Adjust the conduction angle of the thyristor to adjust the output voltage of the thyristor. Finally, the purpose of regulating power is achieved. Zero-crossing thyristor may sound unfamiliar, so let's change it to a popular name, solid state relay, which will be familiar to everyone. How does the zero-crossing thyristor adjust the power? We know that the AC signal is 50Hz, which means that the AC signal changes 50 times per second. Of course, it will rise or fall through the zero point every time. Think about it, your high school physics * sine wave. For example, I now want to adjust the power to 50% of the rated power, what should I do? It only needs to be adjusted so that every time the thyristor does work once (conducts once), it pauses once (non-conducts for 20ms), then conducts once again, and then does not conduct for 20ms. In this way, popular understanding means that you work half the time and rest half the time. This results in a power adjustment of 50%. Now if you want to adjust the power to 25%, you only need to work for 1 cycle and rest for 3 cycles. Because every time, the signal will cross zero, it is called zero-crossing thyristor. But I personally feel that the name solid state relay is more appropriate. Power adjustment is nothing more than the constant switching of this special relay (solid state relay). Always on means full power heating, more on and less off means greater power heating, less on and off more power means lower power heating. It's just that the switching speed is extremely fast (one wave per week is 20ms). Now there are many special temperature regulators that can directly output the zero-crossing trigger signal of solid-state relays. It no longer requires a dedicated phase-shift trigger adjustment board like the phase-shifted thyristor. In China, Japanese regulators and thyristors are very popular. Domestic ones, on the other hand, are not very impressive. For example, Japan conducts electricity. (Shimaden), Japan Omron. Especially conductive, thyristors are cheap. PID temperature regulators are also very cheap. Power trim boards are also cheap. The cost is often less than twice that of domestic products. So it's still very popular. I know that among domestic manufacturers, Anton, Dongqi, Hongrun, etc. are making PID regulators. The heating thyristor involves silicon raw wafers. Not everyone can do it. But there are still a few domestic ones doing it. The main manufacturers of high current (high power type) are nothing more than German IXYS, Siemens (not Siemens), Mitsubishi Semiconductor, conductive (very high current is not very famous), and Continental. Omron (high current is also very small, very average. ) Zhuzhou Converter, a subsidiary of the domestic CSR Group, is also very famous. Unfortunately, Zhuzhou Converter has invested all its energy in more profitable rectifiers and has no intention of selling low-priced heating thyristors to everyone.

This post was last edited by neuzkm on 2013-4-24 13:00 Among temperature controllers, PC3000 is indeed a pretty good product, but it is a pity that PC3000 has been discontinued, and the performance of the replacement T2550 is quite different from PC3000. I recommend a domestic temperature controller, whose performance is not worse than PC3000, much better than T2550, and much more stable. Don’t say that I am bragging, this product has very good practical applications in Beijing Tongmei and Yunnan Germanium Industry. You can also learn about Beijing Dehuifeng Environmental Protection Technology Co., Ltd. (multi-loop high-precision temperature controller) TPC3000 (Temperature Programmable Controller) Multi-channel temperature measurement controller function overview uses a high-performance microprocessor chip as the core, equipped with a real-time clock module and a large-capacity data storage module. It has the advantages of accurate sampling, reasonable control, high intelligence, accurate and reliable time display, no loss of parameters when power is off, and a simple and beautiful software interface. ； It ensures the accuracy and stability of product measurement and control. It is a high-precision and highly integrated controller. This product can be connected to multiple sensors at the same time, and can perform multiple controls on an environment at the same time, or independently monitor and control the temperature of multiple environments. The product is divided into 4-way temperature control ； 8-way temperature control ； 12-way temperature control ； 16-way temperature control. The temperature values ​​of up to 16 environmental measurements can be digitally displayed separately. The product has independent self-tuning mode and independent PID parameters, and has computer communication function. 1. 1. Product application scope: TPC3000 (Temperature Programmable Controller) multi-channel temperature measurement and controller is a multi-purpose integrated modular temperature measurement and control system, suitable for temperature measurement and precise control of industrial processes. Products are mainly used for: Integrated plastic extrusion system ； Single and polycrystalline semiconductor production - diffusion and molecular beam epitaxy equipment ； Heat treatment - complete electric heating furnace temperature measurement control, including vacuum furnace, tunnel kiln, hot extrusion molding ； Food processing - electric oven 2. Product features: Accurate analog control, suitable for R type, S type, B type and other types of thermocouple sensors, with 24-bit resolution ； Temperature measurement range: 0-1999ºC temperature measurement accuracy: 0.2ºC temperature control accuracy: 0.3ºC Built-in multiple algorithms: PID, artificial neural network, genetic algorithm, etc., automatically switch digital control in real time according to the control temperature setting range, Boolean and logic combination heating control sequence control sequence control chart (SFC) 3. Communication RS485 serial communication interface, convenient for communication with the host computer and factory DCS system 4. I/O module: Analog input: 16 mV signals ； Digital output: 10-way relay (1A) or electronic switch ； working temperature: -10-70°C Relative humidity: 5 to 95% Power supply: AC 220V±10%, 50/60Hz