Gefran Compact Single Phase Power Controller

Compact and Suitable for All Electrical Heaters

The need of manufacturers and users of heat treatment plants is to maintain precise and constant control of the process with the goal of obtaining a constant quality of production while optimizing energy consumption.

The features of Gefran's GRM-H Series Power Controllers ensure efficient heating management even in the case of complex electrical loads, which require special features, as in the case of infrared lamps or

Silicon Carbide heating elements.

Main Features:

Ultra-compact dimensions from 10A to 120A Load voltage 480V, 600V AC DIN rail and panel mounting IO-Link and Modbus RTU digital communication Current limiting Feedback V, I, V², I², P, Z Control output for Slave (2PH, 3PH) Opzione ad elevata accuratezza di controllo Zero voltage crossing (ZeroCrossing) or Phase angle control On/Off control, optimised/fixed cycle time, HalfSingleCycle, PhaseAngle, softstart ramps

Input command, Analogue signal (0..5V, 0..10V, 0..20mA, potentiometer), PWM or IO-Link logic Signal LED Configuration and diagnostics via smartphone app with NFC technology Calibration and alarm reset commands via DI 2 outputs: PNP and dry contact, completely configurable Cage clamps for power cables Advanced load diagnostics Internal over voltage protection Integrated cooling fan power option

Command Proportional Command Master/Slave 2PH - 3PH Control Half Single Cycle Phase Angle Feedback V,I,P

Resistive Loads  Linear Resistance IR Heating Lamps Swir Silicon Carbide SiC  Diagnostics Energy Meter Thermal Alarm Partial Heater Break Alarm

Control

The availability of several configurable firing modes (ZC, BF, FT, HSC, PA) combined with features that ensure stable energy delivery to the load such as compensation for mains voltage fluctuations or aging of heating elements allow efficient temperature management resulting in energy optimization of the process.

Digital Communication Protocols

Factory digitization is now reaching its final frontier, the field level of industrial automation. By selecting a GRM-H power controller with either IO-Link or Modbus RTU communication protocols, users have valuable process data for predictive maintenance and using machine learning in their shop.

NFC Configuration

Simple and safe commissioning, fast maintenance and diagnostics are a requirement today for devices such as Power Controllers. The GRM-H series, thanks to NFC technology, makes it possible to extend user interaction by using standard Smartphones or Tablets as smart configurators. Thanks to a graphical and intuitive interface, set up or diagnostics are particularly intuitive.

Power-Flo Technologies is proud to partner with Gefran as they aim to promote sustainable growth and attend to the expectations of those they work with. The Gefran GRM-H Series Power Controllers represent a cutting-edge solution for manufacturers and users of heat treatment plants, ensuring precise and consistent process control while optimizing energy consumption. With their ultra-compact design, versatile mounting options, advanced firing modes, and compatibility with complex electrical loads like infrared lamps and Silicon Carbide elements, these controllers offer unparalleled performance. The integration of digital communication protocols such as IO-Link and Modbus RTU, along with NFC configuration capabilities, underscores their role in modernizing factory operations and enabling predictive maintenance. By investing in the GRM-H Series, users can achieve superior production quality, reduce energy costs, and align with the growing demands of industrial automation and smart manufacturing.