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Omron enhances 1/32 DIN temperature controller range

26 April 2010

Increased indication accuracy and faster sampling rate are among the enhancements that Omron has made to the latest versions of its compact E5GN temperature controller. Presented in 1/32 DIN (48 x 24 mm) housings, the new units are the smallest models in the popular E5-N temperature controller range yet they make no compromises in versatility and ease of use.

At the heart of the new E5GN controllers is a large easy-to-read colour-change display, which can optionally be configured to alternate between showing SV/PV and controller status messages, including alarms. The display can also be switched between three colours, allowing it to be used, for example, to provide an instant visual indication of an alarm condition.

The controllers are available either with universal inputs for use with Pt sensors and thermocouples, or with inputs that are compatible with standard analogue current and voltage signals. The new models have an indication accuracy of ±0.3% when used with thermocouples, and ±0.2% for all other input types.

The sampling period and loop update time of the E5GN has also been halved to 250 ms, allowing them to provide a faster response to suit demanding applications. Other enhancements include the introduction of heater alarms and event inputs, as well as provision for two independent alarm outputs. Screwless clamp terminals are now also offered to make wiring faster and easier.

To ensure ease of use, the new E5GN temperature controllers incorporate a parameter mask function that is accessed via Omron’s CX Thermo support software. This function allows parameters that are not needed for a particular application to be hidden, thereby guarding against setting errors and inadvertent operation. The CX Thermo software can also be used as an aid to convenient setting, adjustment and of course parameter cloning, creating easy and errorless copies for multiple machines.

Like a PLC’s ladder, the E5GN has 8 logic registers to perform logic switching. These 8 “work bits” can be programmed to perform simple logic operations, with or without time delays, using the status of alarms or the controller’s digital inputs. The result can be used to control the operation of the E5GN itself, or one of its Control or Sub outputs.

With this update of the compact 48 x 24 mm controllers, Omron’s E5-N range now consists of one versatile range in four sizes. As well as the 1/32 DIN size units (E5GN), the range also offers 1/4 DIN size (E5AN 96 x 96 mm), 1/8 DIN size (E5EN 48 x 96 mm) and 1/16 DIN size (E5CN 48 x 48 mm) controllers, thereby allowing customers to select the best model for their own specific application.

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