Rockwell Automation 1305 AC Drive, Firmware 1.01-3.00 User Manual - Manual (Page 90)

Chapter 5 – Programming
5-22
Advanced Set Up Group (cont.)
[DC Hold Level] Parameter # 13 Factory Default 0 Volts [DC Hold Level]
Parameter Type Read & Write Minimum 0 Volts
This parameter value sets the DC voltage applied to the
motor during braking when the [Stop Select] is set to
either ‘‘DC Brake” or ‘‘Ramp”. IMPORTANT: When setting
this parameter, begin at a low voltage and continue
increasing until sufficient holding torque is achieved and
the drive output current rating is not exceeded. Units 1 Volt Maximum 25% of Max. Drive Rated Volts
[DB Enable] Parameter # 11 Factory Default ‘‘Disabled” [DB Enable]
Parameter Type Read & Write
This parameter enables the use of external dynamic brake
res s ers IMPO TA T: Dy
r g s v e
Units None Settings ‘‘Enabled” Permits dynamic brake operation
resisters. IMPORTANT: Dynamic braking is not available
for 1/2 through 1HP (0.37 to 0.75 kW) units rated 230 Volt.
‘‘Disabled” Permits Ramp Regulation
[Motor Type] Parameter # 41 Factory Default ‘‘Induc/Reluc” [Motor Type]
Parameter Type Read & Write
This parameter should be set to match the type of motor
connected to the drive. Units None Settings ‘‘Induc/Reluc” Requires No Additional Setting for use with
induction/reluctance rated motors
connected to the drive.
‘‘Sync PM” Requires [Stop Select] to be set to a selection other
than ‘‘DC Brake” when used with Synchronous
Permanent Magnet Motors
[Compensation] Parameter # 52 Factory Default ‘‘No Comp” [Compensation]
Parameter Type Read & Write
Some drive/motor combinations have inherent instabilities
which are exhibited as nonsinusoidal current feedback. The
compensation when enabled will correct this condition.
Compensation is only active at frequencies below 50 Hertz
where the problem is most pronounced. Units None Settings ‘‘No Comp”
‘‘Comp”
Compensation Disabled
Compensation Enabled