Delta RMC151 User Manual download pdf (Page 32)

RMC70/150 and RMCTools User Manual

If you wish to use units not listed, choose Custom, then type up to 4 characters in

the Custom Units parameter.

c. For dual-loop axes, repeat this in the Secondary Control Setup section.

d. Click the Download button to apply the changes.

8. Tune Each Axis

In order to control an axis in closed-loop control, it must first be tuned. Refer to the

online help for the tuning procedure:

a. In RMCTools, on the Tools menu, click Tuning Tools. This pane provides everything

you need for tuning the axes.

b. Follow the instruction in the Tuning

topic to tune the system.

9. Set up and Configure the Communications

If your RMC will be communicating with an external controller, such as a PLC, PC, or other

device, you must set up the communication. Refer to one or more of the following topics

for details on configuring the communication type of your RMC controller:

• Ethernet Overview

• PROFIBUS-DP

• Serial Overview

10. Save Your Configuration Settings

Make sure to save your settings! This can be done in the following ways:

• Save your RMCTools project. Before doing this, make sure the project data is the same

as the controller data. To save the project, on the File menu, click Save.

• On the Controller menu, click Update Flash.

2.2. Scaling

2.2.1. Scaling Overview

Scaling refers to converting the transducer feedback into meaningful units. The RMC uses the

Scale and Offset parameters to convert the transducer Counts

into measurement units

(position, velocity, pressure, force). For example, the Voltage returned by an analog position

transducer must be converted to positions in order to be useful for control. In order to

correctly convert the transducer feedback to useful units, you must calculate the Scale and

Offset parameters.

Position Units

The RMC uses the default terms Position Units (pu), Pressure Units (Pr), and Force

Units (Fr) for the scaled feedback. You can change these to feedback units of your

preference by choosing from a list or entering a custom unit. See Display Units

for details.

Calculating the Scale and Offset

RMCTools provides Scale/Offset wizards to help you calculate the Scale and Offset

parameters. You can also calculate the parameters manually.

Scale/Offset Wizards

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