A434, A428, Advanced program group – Rockwell Automation 22F PowerFlex 4M User Manual FRN 1.xx - 2.xx User Manual

Page 64: Continued)

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3-24

Programming and Parameters

PowerFlex 4M Adjustable Frequency Drive FRN 1.xx - 2.xx User Manual
Publication 22F-UM001D-EN-E

Advanced Program Group

(continued)

A428 [DB Duty Cycle]

Related Parameter(s):

A427

Stop drive before changing this parameter.

Selects the duty cycle allowed for an external dynamic braking resistor when

A427

[DB Resistor Sel]

is set to 3. This parameter applies only to Frame C drives.

Values

Default

5%

Min/Max:

1/99%

Display:

1%

A433 [Start At PowerUp]

Stop drive before changing this parameter.

Enables/disables a feature that allows a Start or Run command to automatically cause the drive to
resume running at commanded speed after drive input power is restored. Requires a digital input
configured for Run or Start and a valid start contact.

Options

0 “Disabled” (Default)

1 “Enabled”

!

ATTENTION:

Equipment damage and/or personal injury may result if this parameter

is used in an inappropriate application. Do not use this function without considering
applicable local, national and international codes, standards, regulations or industry
guidelines.

A434 [Reverse Disable]

Related Parameter(s):

d006

Stop drive before changing this parameter.

Enables/disables the function that allows the direction of motor rotation to be changed. The reverse
command may come from a digital command, the keypad or a serial command. All reverse inputs
including two-wire Run Reverse will be ignored with reverse disabled.

Options

0 “Rev Enabled” (Default)

1 “Rev Disabled”

A435 [Flying Start En]

Sets the condition that allows the drive to reconnect to a spinning motor at actual RPM.

Options

0 “Disabled” (Default)

1 “Enabled”

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