Keypad simplifies the use of variable-speed drives
02 December 2014
ABB has launched a keypad with features that are said to make programming and operating variable-speed drives more straightforward and which is a feature of the ACS880 variable-speed drive range.
The new keypad has a left and right key, allowing numbers to be edited digit by digit, or words to be edited character by character. This gives offers faster and more intuitive editing for all parameters and text values, while also making it easier to move through the assistants.
The screen has an adjustable contrast offering white text on black, black text on white and several other contrasts to suit different lighting levels.
On start-up, the user sees home screens, which can be edited to display the information and parameters required. Each of the home screens can hold up to three selected parameters, which can be displayed in various formats, such as history trend graphs, amplitude loggers, peak load detectors and load profiles.
It is also possible to ‘point’ a parameter at any other parameter which makes the drive more flexible than with previous keypads, allowing internal links to be made and new functionality to be achieved without the need for PC tools.
Connecting and scaling parameters for fieldbus use is achieved with simple browse and selection editing, while it is also easy to select 16- or 32-bit operation.
Keeping track of the multiple inputs and outputs in use on the drive is made straightforward with an I/O function that displays all of the connections. This allows users to see what each I/O is being used for.
Start-up assistants are included to guide the user through the basic set-up steps for the drive. Currently the basic start-up assistant is included, which will be followed by PID set-up and fieldbus assistants.
The keypad contains 14 languages on-board. OEMs could therefore program the drive in their native language and then simply change the language to the destination country before shut down. The drive will operate in the destination country’s language on next power up.
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