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 ext
ernal 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
r
esume 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 “D
isabled” (Default)
1 “E
nabled”
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 direc
tion 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 “R
ev 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 “D
isabled” (Default)
1 “E
nabled”
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