Understanding the analog window – Rockwell Automation 2098-UWCPRG Ultraware Software User Manual User Manual

Page 57

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Rockwell Automation Publication 2098-UM001G-EN-P - February 2011

59

Configuring the Ultra3000 Drive Chapter 3

Understanding the Analog
Window

The Properties window for the Analog branch looks like this.

Use the Analog window to:

set Analog Velocity, Current and Position Command Input drive
parameters for an online or offline drive,

monitor the status of the incoming Analog Command for an online drive,
and

execute commands that remove Velocity, Current and Position Input
Offsets for an online drive.

These parameters govern drive operations when the Operating Mode is set to
Analog Velocity Input, Analog Position Input or Analog Current Input, in the
window.

Parameter

Description

Velocity Command Input

Velocity Scale

The drive's velocity input scale value. This value indicates the
change in velocity per Volt of change in the Analog Command
Input.
Note: This parameter is stored on the drive as a percent of
motor maximum speed. The range is -20…20 %/V. The default
setting is 10%. The displayed units remain [velocity]/Volt, where
velocity depends on the motor type (rotary or linear set in the
Motor window, and the Units setting in the Ultra3000 drive
window.

Velocity Offset

The drive's velocity input offset value. This value indicates the
offset of the Analog Command Input. It has a range of -
10000…10000 mV.

Accel/Decel Limits

Indicates the state of the Acceleration and Deceleration Limits,
below, for the Analog Command Input in the drive, either:
Active
Inactive

Accel Limit

If Accel/Decel Limits is set to Active, this is the drive's
acceleration limit when the drive is in Analog Velocity Input
mode and the Analog Command Input changes. It has a range of
0…[(2

31

)-1] counts per second

2

.

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