Overview

The Reotron 567LH-DP24 is a robust thyristor controller drive designed to regulate high-power resistive and inductive loads with exceptional precision. Its digital control core ensures stable and reliable output, even under fluctuating supply conditions or demanding loads. The inclusion of a Profibus-DP interface allows seamless integration into modern industrial control networks for remote setpoint adjustments and diagnostics.

This drive is ideal for applications where fine-tuned, continuous power control is critical, such as in thermal plants, industrial ovens, infrared dryers, and materials treatment processes.

Technical Data

Typical Applications

• Thermal plants – precise temperature control in furnaces, ovens, and melting crucibles

• Infrared dryers and specialized heaters – maintain consistent temperature profiles for quality assurance

• Chemical processing – controlled heating for reactions and process stability

• Materials treatment – accurate thermal energy delivery for metal or polymer processing

The dual control modes provide versatility: phase angle control for smooth, precise adjustment and burst-fire control for resistive loads to reduce electromagnetic interference (EMI).

Frequently Asked Questions (FAQ)

Q1: What is the difference between phase angle and burst-fire control?
A: Phase angle control adjusts the firing point of thyristors within each AC half-cycle for smooth, precise power variation. Burst-fire mode switches full AC cycles on/off over a defined period, ideal for resistive loads and reducing high-frequency EMI.

Q2: How does the Profibus-DP interface enhance functionality?
A: It enables full integration into PLC/DCS systems for remote voltage, current, or power setpoint control, as well as real-time monitoring and diagnostics, simplifying maintenance and process optimization.

Q3: Can it handle inductive loads like transformers?
A: Yes. The 567LH-DP24 can manage both resistive and inductive loads. Phase angle control is recommended for transformers to prevent DC bias saturation and overheating.

Q4: What built-in protections are included?
A: The drive incorporates over-current detection and short-circuit protection, safeguarding both the thyristor stack and the connected load during electrical faults or overload conditions.