Emerson P/N 400361-00 manual Setup View, User Units View, Name, SP Modbus Node Address

7.3.1 Setup View

The Setup view allows the user to setup various parameters related to how the overall system operates. Figure 65 shows an example of the Setup view.

Figure 65: Setup View

Name

This is a 12-character alpha/numeric user-configured name for this axis. Enter the name for the device you are currently setting up. Assigning a unique name for each device in your system allows you to quickly identify a device when downloading, editing, and troubleshooting. All keyboard characters are valid. This will default to Axis 1.

SP Modbus Node Address

This is the Modbus address of the target drive to which you will download the configuration. The default target drive address is 1.

Motor Feedback Source

Motor Feedback Source allows the user to specify where the motor feedback device is connected to the Unidrive SP. Early released of PowerTools Pro and SM-EZMotion only allow selection of "Drive".

Trajectory Update Rate

This parameter configures the interrupt interval for the processor. This defines how often the motion program is interrupted and the Control Loop is processed. In the Control Loop, the feedback information is processed and a new position command is generated. Also in the Control Loop, the I/O is scanned.

Available selections for Trajectory Update are 1, 1.25, 1.5,

1.75and 2 milliseconds. The longer the update, the more time is dedicated to the user programs, and the less time dedicated to servo performance. The shorter the update, the more precise the servo performance, but less time is available to process user programs. Diagnostics are

available on the Status Online tab when online with the device to help select the ideal setting. (See description of Control Loop Group of online parameters for further information)

Positive Direction

The Positive Direction consists of a clockwise (CW) Motor Rotation Radio Button or a counter-clockwise (CCW) Motor Rotation Radio Button.

The motion will move in either CW direction or counter-clockwise CCW direction. Perspective of rotation is defined as you face the motor shaft from the front of the motor.

CW Motor Rotation Radio Button

Select this radio button for applications in which CW motor rotation is considered to be motion in the positive direction (increasing absolute position).

CCW Motor Rotation Radio Button

Select this radio button for applications in which CCW motor rotation is considered to be motion in the positive direction (increasing absolute position).

Switching Frequency

This parameter defines the switching frequency of the Unidrive SP. Available switching frequencies are 3kHz, 4kHz, 6kHz, 8kHz, 12kHz and 16kHz. For more information on how the switching frequency effects drive performance refer to the Unidrive SP User Guide.

7.3.2 User Units View

The User Units view allows the user to configure the distance, velocity, and acceleration units to be used for the motor axis throughout the application. Figure 66 shows an example of the User Units View.

Figure 66: User Units View

Configuring an Application www.emersonct.com 37