458/CTR8 – 8-Channel Ballast Controller

The 458/CTR8 is an eight-channel A channel pertaining to a load (also known as control gear or LIU), see entry for load. A ballast has one channel, whereas a dimmer or relay unit can have numerous channels. digital ballast controller module, capable of controlling either 0–10 V, 1–10 V, DSI® A protocol used for the controlling of lighting in buildings. The technology uses a single byte to communicate the lighting level. DSI® (Digital Signal Interface) was the start of digital communication technology and the precursor to DALI. DSI® is a registerd trademark of Tridonic GmbH., DALI Stands for Digital Addressable Lighting Interface. Standardised digital protocol for lighting control, allowing communication between control devices and LIUs (control gear). broadcast or PWM Stands for ‘Pulse Width Modulation’. PWM can be used to reduce the total amount of power delivered to a load, without losses normally incurred when a power source is limited by resistive means. loads. It has both a DALI and an SDIM/DMX Stands for Digital Multiplex. A type of subnet, used mainly for stage lighting and effects control. interface, and therefore can be fully integrated into a DIGIDIM Helvar’s range of products based on the DALI standard. The DIGIDIM range is composed of a series of controllers and lamp interface units that are designed to communicate using DALI commands. or an Imagine Helvar’s range of products based on Helvar’s SDIM protocol. router system.

It can also be used on the TouchPanel, or used on standalone DALI or DIGIDIM systems.

The module has eight high inrush relays, rated at 16 A per channel.

The front of the module is equipped with an LCD display with intuitive cursor control, to set some basic configuration parameters and provide basic manual control.

For more information, visit the Helvar Website.