GKZ-W frequency regulation module
The GKZ-W frequency regulation module can form an AC voltage and power regulation system with various specifications of single-phase, two-phase, and three-phase zero crossing solid-state relays. Its working principle is to change the frequency of the output voltage by controlling the input voltage (1-5VDC) or input current (4-20mADC), thereby achieving the goal of changing the output power.

The product adopts an AC zero crossing triggering method to reduce the possible occurrence of high order
The interference of harmonics on the power grid can prevent the occurrence of "overshoot" phenomenon in controlled temperature, and has high temperature control accuracy.  

The product control method is simple and can be manual or automatic. When manually operated, an external 10K potentiometer is required, and its control power is provided by this controller, which does not require external connection and is quite convenient. When automatic, it can be directly connected to the temperature control meter and computer. Our company now offers a combination of three-phase electric heating systems for customers to choose from. The specifications include 120A * 3, 200A * 3, and 300A * 3. (including radiator and fan)

Pin function:

Application circuit:

In the application line:
1. Using a 10K potentiometer, if the automatic input is 4-20mA, please add a 250 Ω resistor before inputting.



2. GKZ-W output can control one solid-state relay, as well as two (series) or three (series) solid-state relays.
From the above application circuit, it can be seen that the biggest feature of this voltage regulation control system is that the wiring at the load end is very convenient, especially for three-phase power sources that can be connected freely without recognizing the phase.

3. Module volume: 106mm * 75mm * 33mm.