Delta RMC101 Manual do Utilizador descarregar pdf (Página 283)

100

101

Digital I/O 5.1

Communications 5-33

The following simple control panel will be used for this application:

The buttons and indicators are to operate as follows:

• The E-stop button—closed when pulled, and open when pushed—must be pulled in order for the

system to run. When pressed, the system will halt immediately.

• The normally-open Run button starts the extension and retraction cycle of the cylinders.

• The green Ready light indicates when power is supplied and the E-stop is not pushed.

• The green Complete light indicates when the cycle is completed.

• The red Error light indicates that the cylinders stopped because of an error (for example, perhaps

the cylinders lagged behind the target positions by too much).

1. Design the System

This application requires two axes, and we will assume that the position feedback is given by

magnetostrictive displacement transducers (MDT’s). Therefore, the appropriate module to use is

the RMC100-M1-DI/O.

The RMC controls based on the transducer or encoder counts received. However, counts rarely

correspond to meaningful engineering units. Therefore, the RMC allows the user to convert counts

into meaningful position units by using Scale and Offset parameters. Refer to RMCWin’s online

documentation for details. In this application, the position units used will be thousandths of an inch.

Therefore, speeds will be given in thousandths of an inch per second.

The following wiring diagram would allow the above control panel to work with the RMC in Input to

Event mode:

1 2 ... 278 279 280 281 282 283 284 285 286 287 288 ... 950 951

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