Description of the PCHV3 series

Frequency Inverters of the PCHVZ Series

The frequency inverters of the PCHVZ series represent modern models equipped with additional functions for controlling fans and pumps. The new PLV series is characterized by enhanced functionality, reduced dimensions and weight, as well as an expanded power range.

Areas of Application

The functional capabilities of these inverters are designed for the most common HVAC applications. This includes "sleep" modes, which are especially important in systems with uncontrolled liquids for pumps. The inverters are also suitable for fire safety specialized modes of controlling ventilation systems in modern buildings. In addition, the series is successfully applied in general industrial solutions, allowing the effective execution of most tasks related to industrial drive control, except in situations with precise positioning and significant dynamic loads. Examples of such applications include dispensers, mixers, conveyors, and belt drives.

Technical Specifications

• soft start and stop of motors, as well as delayed starts;
• two types of power supply: 3x380 V with a power of 0.3790 kW, 3x220 V (0.2511 kW);
• output frequencies up to 400 Hz;
• speed accuracy – about 0.5% of the nominal;
• adjustment range 1:100;
• torque accuracy up to 1% of the nominal;
• compensation for slippage and loads;
• automatic adaptation without rotating motors;
• control algorithms: vector or volt-frequency;
• automatic optimization of electricity consumption to ensure high energy efficiency;
• full operational protection, as well as hardware and functional diagnostics of inverters;
• built-in chokes in the direct current circuits, network choke, and an additional input choke.

Advantages

• built-in PID controller for closed-loop control (for maintaining temperature, pressure, level, etc.);
• built-in PLC for solving various positioning and drive control tasks;
• capture of rotating drives during non-failure starts of rotation systems before supplying power voltage, as well as in cases of voltage drops;
• capable of passing through resonant frequencies.