Omron has enhanced and expanded its H8PS range of cam position units to deliver new benchmark standards in functionality and ultimate ease of use. Suitable for use in high speed, high precision applications, the three models in the ¼ DIN range now offer 8, 16 or 32 outputs, with up to 10 steps per output. The positioners combine simple programming and set-up with features such as advanced angle compensation, a bank function for multiproduct production, and a large, highly visible display.
Modern industrial machines carry out multiple operations on a product as it is taken through its manufacturing cycle. Wherever indexing tables are used on machinery, there is often a need to control the timing of operations on the product based on angular position data. Where a single machine requires a number of cam positioners, Omron's H8PS range provides a suitable solution.
The H8PS range now comprises three compact models, all measuring 96 x 96 mm, offering 8, 16 or 32 outputs, whilst a parallel input adapter allows two units to be linked, providing up to 64 outputs - all from a single encoder input. The functionality of the original H8PS has been enhanced, with the new models suitable for high-speed operation up to 1600 rpm. The H8PS range also meets the needs of high-precision applications by providing a resolution of up to 0,5° (720 steps per revolution). Further features include 'Advance Angle Compensation', which automatically advances the on/off angle of outputs in proportion to the machine speed, thus compensating for any delay in timing of the on/off operation.
The H8PS has always been characterised by its ease of use, and this has been further enhanced in the new series. The unit itself provides a clear and simple user interface with one-key/one-action setting. In addition, the 16 and 32 output units have built-in USB ports to facilitate set-up and programming changes. The cable plugs into a computer from where cam settings can be uploaded and downloaded with ease. This becomes even more useful when using the bank function on these two models.
Bank function
The bank function meets the needs of applications where a single machine is used for a number of different product variants. It allows up to eight different sets or banks of parameters to be stored which facilitates quick and easy product changeovers. The desired bank can then be selected - remotely, via an external volt-free input - or locally, using the key on the front of the unit.
All models in the range feature a highly visible display, using Omron's backlit negative transmissive LCD technology to ensure excellent visibility in all lighting conditions and at all viewing angles. Both the speed (in rpm) and the present angular position are displayed at the same time and in different colours - red and green - for quick, at-a-glance status monitoring. Furthermore, the displays can be toggled to give the main emphasis to the speed or the position as required.
Another useful feature added to the new range is the ability to set upper and lower speed alarms should not all cams be in use. The spare cam gets designated as an upper or lower alarm and gives an output when appropriate. In addition to the individual cam outputs there is a separate pulse output, which can be configured to give a preset number of pulses per encoder rotation. This output can be set to start triggering at a pre-determined angle and can be fed into a separate device such as a frequency meter, counter or PLC.
Finally, cam, step and key protection functionality has been added to prevent unauthorised persons changing program information. Cam can be protected individually preventing changes to certain cams whilst allowing changes to others. The numbers of steps per cam can also be limited to prevent additional steps being added by mistake, whilst the key protection enables the complete unit to be locked from unauthorised changes.
For more information contact Steve Green, Yelland Control, 011 579 2600, [email protected], www.yelland.co.za
| Tel: | +27 11 579 2600 |
| Email: | [email protected] |
| www: | www.industrial.omron.co.za |
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