Rockwell-automation 2098-UWCPRG Ultraware Software User Manual Manual de usuario descargar pdf (Pagina 229)

Rockwell Automation Publication 2098-UM001G-EN-P - February 2011 231

Configuring the Kinetix 3 Drive Chapter 5

Motor Encoder Units Sets available Motor Encoder Units:

• Position Label: When User is selected for Displayed Units, this is

the user-defined label for position values relating to the motor

encoder.

Limited to 16 characters in length.

• Position Scale: When User is selected for Displayed Units, this is

the user-defined conversion factor used to convert position

values into user units relative to the motor encoder.

In counts per user unit

• Velocity Label: When User is selected for Displayed Units, this is

the user-defined conversion factor used to convert velocity

values into user units relative to the motor encoder.

In counts per second per user unit.

• Velocity Scale: When User is selected for Displayed Units, this is

the user-defined conversion factor used to convert velocity

values into user units relative to the motor encoder.

In rpm per user unit

• Acceleration Label: When User is selected for Displayed Units,

this is the user-defined conversion factor used to convert

velocity values into user units relative to the motor encoder.

In rpm per user unit.

• Acceleration Scale: When User is selected for Displayed Units,

this is the user-defined conversion factor used to convert

acceleration values into user units relative to the motor encoder.

This is displayed in revolutions per second

per user unit.

Stopping Functions Sets available Stopping Functions:

• Over Travel Stop Method: The method used to bring the motor to

a stop when an overtravel condition occurs:

Current Control: The Maximum Stopping Current is applied to

reduce the measured speed to zero.

Dynamic Brake: The motor windings are shorted together and

connected to the positive DC bus to reduce the measured speed

to zero.

• Maximum Stopping Current: Current is applied to motor in order

to bring the axis to a stop in the event of an overtravel condition.

• Fault and Disable Braking: A method used to bring the axis to

zero speed by use of the internal, dynamic brake relay in the

event of a fault or disable condition.

Note: This selection affects the operation of the drive soft-start

circuitry, because the hardware is shared.

Brake and Hold: The motor windings are shorted together and

connected to the positive DC bus whenever the drive is faulted

or disabled.

Brake and Release: If the motor speed is non-zero when the

drive faults or changes to a disabled state, the motor windings

are shorted together and connected to the positive DC bus until

zero speed is reached, and then are disconnected.

Note: In this mode, at zero speed, the soft-start circuitry is

operational only when control power is absent.

Free Stop: The motor windings are not shorted together and the

motor coasts to a stop.

Note: In this mode, the soft-start circuitry is operational only

when control power is absent.

Free Stop and Hold: The motor windings are not shorted together

until the motor has coasted to a stop.

• Disable Delay: The time from when the Drive Disable command

is received to when the motor power is removed.

The range is 0 to 1000 ms. The default is 0.

• Braking Application Speed: Motor feedback speed below which

the drive engages the motor brake signal, when the drive is

disabled.

The range is 0 …1000 rpm (millimeters per second for linear

motors). The default is 100.

Parameter Description

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