Purpose:

Power regulators are designed for:

• power control in active load, power triacs connected to the device;
• use as a power setting device of a manually controlled heater, as well as for automatic maintenance of the object temperature in conjunction with thermostats (for example, RD1, RP1, etc.).

General functions and operating modes:

The power regulator works in automatic mode. When a voltage of 0 ... 10V is applied to the control input, the device proportionally regulates the output power of the active load in the range of 0 ... 100%.

The device provides a smooth output to the set power. This is necessary to avoid sudden overloads of the supply network. When the device is turned on or when the signal level changes abruptly at the control input of the device, the power in the load increases not abruptly, but smoothly. The time for reaching the set power is adjustable from 0.1 to 60 seconds, which is set using the knob on the front panel of the device.

The "inhibit" input signal inhibits the triggering of control pulses. When it is removed, a smooth exit to a given power level will occur. An n – p – n type transistor with an open collector output or contacts of a button, toggle switch, reed switch, relay can be used as a source of the "blocking" signal.

The operating mode is displayed on the front panel of the device and changed by software. The factory performs an initial calibration of the analog inputs with the factory settings.
To regulate the power on the load, the device allows you to generate signals that control the triacs by two methods: phase or by the number of half periods.

The phase method is used to control low-inertia objects that are responsible for changing the voltage across the load, as well as when controlling lighting. With the phase method, the device changes the opening angle of the triac depending on the value of the signal at the control input, thereby changing the power level at the load.

The half-cycle control method is applicable only for inertial loads. The number of half-periods on the load depends on the value of the signal at the control input: at the minimum power level (0%), half-waves of voltage are not received, at the maximum power level (100%), 100 half-waves are supplied to the load, and at 50% power - 50 half-waves of the supply voltage.

Characteristics

Analog input parameters

Main technical characteristics of the power regulator