Dual sensing in one body
An
Omron Electronics product story
Edited by the Engineeringtalk editorial team
Jan 20, 2006
Omron's E3X-MDA digital, fibre optic sensor amplifier has dual sensing in a single body and provides a control logic output function.
Omron's E3X-MDA digital, fibre optic sensor amplifier has dual sensing in a single body and provides a control logic output function.
These make it suitable for applications that require a sensor to detect the presence of an object and another to check some part of that object.
It combines two separate fibre optic amplifiers into one body with a 10mm width.
This also saves on power consumption.
The dual display lets users see and adjust the set points while still viewing the incident light level, to ensure optimum switching is achieved.
As well as simple teach operations, both the E3X-MDA and single channel E3X-DAS amplifiers have a power tune function.
This lets the user adjust the power or intensity of the emitted light from the unit to match the target application.
For example, it is possible to detune the amplifier for applications where the light beam is too powerful or to provide more power where the application is either long range or in a dirty environment.
With power tuning in the amplifier, it is possible to use a standard fibre optic sensor and cable where in the past it may have been necessary to use a specialist sensor to achieve the optimum light level and focus.
The amplifier outputs can operate independently or be combined to perform an AND/OR function.
This means the E3X-MDA can be used to provide a reliable output for limits of travel, identification and verification of a target in one amplifier or basic zone sensing, all without the need for a local logic controller.
In operation, the amplifier can detect in high-speed mode with a response time of 130us.
It also has a long-range mode, and a tuning mode that ensures that the light output from one device can match that of another, suitable for repeat installers such as machine builders.
Output timer modes include on-delay, off-delay and one-shot operation.
It incorporates a master-slave operation.
By using the connector version, it is possible to bank up to 16 amplifiers to save wiring.
Furthermore, when they are banked, they can communicate with each other via an optical link.
Using a handheld programmer, the settings for all amplifiers can be saved in one program and downloaded to subsequent installations, or all amplifiers could be matched at the touch of a button.
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