Rockwell Automation 1336F PLUS II Custom Firmware Instructions - EN921 - Manual (Page 7)

EN921 - Variable Voltage w/ PI Power/Current Control 7
The following parameter(s) have been modified to provide special functionality required by the
application (changes indicated in bold):
Voltage PI
[Pwr / Cur Ref Lo]
Sets the percentage of power or current reference that
represents the low end of the “Range”.
Parameter Number 342
Parameter Type Read/Write
Display Units / Drive Units 0.1% / 4096 = 100%
Factory Default 0.0%
Minimum Value –300.0%
Maximum Value +300.0%
[Pwr / Cur Ref Hi]
Sets the percentage of power or current reference that
represents the high end of the “Range”.
Parameter Number 343
Parameter Type Read/Write
Display Units / Drive Units 0.1% / 4096 = 100%
Factory Default 100.0%
Minimum Value –300.0%
Maximum Value +300.0%
[PWM Frequency]
This parameter sets the carrier frequency for the sine cod-
ed PWM output waveform.
This parameter cannot be changed while the drive is running.
Refer to the Derating Guidelines in Appendix A.
Parameter Number 45
Parameter Type Read and Write
Display Units / Drive Units 2 KHz / KHz/2
Factory Default 2 KHz
Minimum Value 1 KHz
Maximum Value A & B Frame Drives = 8 kHz
C Frame Drives & Up = 6 kHz
[VT Scaling]
This parameter scales the drive for VT ampere ratings.
Important: This parameter must be set to “Disabled” when
drive is used in a fibers application.
This parameter cannot be changed while the drive is
running.
Parameter Number 203
Parameter Type Read and Write
Factory Default “Enabled”
Units Display Drive
“Disabled” 0 Disables Variable Torque Scaling
“Enabled” 1 Enables Variable Torque Scaling
[Load Loss Level]
Sets the torque current level below which a load loss fault/
warning will occur. The value is expressed as a
percentage of programmed [Motor NP Amps].
Parameter Number 291
Parameter Type Read and Write
Display Units / Drive Units 1 % / 4096 = 100%
Factory Default 50%
Minimum Value 5%
Maximum Value 100%