Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) Commissioning - ForGe Control - Manual (Page 93)

Rockwell Automation Publication 7000-IN012B-EN-P - June 2014 93
Commissioning the Drive Chapter 4
6. Increase Idc Test Command to 0.2 pu, and repeat the process.
• Increase to 0.7 pu in 0.1 pu steps for 18 Pulse
• Increase to 0.3 pu in 0.1 pu steps for AFE, verifying each level as you
increase the current.
• For the AFE rectifier, the Idc test is limited to 0.3 Idc Reference. If there
is a current meter somewhere on the input to the transformer/drive,
check the current to ensure that it matches expectations for drive
performance.
7. Decrease the IDC current in increments of 0.1 pu to 0, and stop the drive.
Return to the Feature Select parameter group and reset Operating Mode to
Normal.
Tuning Procedure Tune the PowerFlex 7000 ‘B’ Frame medium voltage drive to the connected
motor and load. There are three drive functions that require tuning. These are
listed below in the typical tuning order:
1. Rectifier
2. Mtr Impedance
3. FluxSpeedReg
Tune the first two functions with the motor stationary, but third function
requires the motor to rotate. In case the drive cannot complete the tuning, you
must tune it manually.
Confirm the following tuning parameter default values:
• Input Impedance (P#140)
• T DC Link (P#115)
• R Stator (P#129)
• L Total Leakage (P#130)
• Lm Rated (P#131)
• T rotor (P#132)
• Total Inertia (P#82)
• Lmd (P#418)
IMPORTANT You require a minimum of SERVICE level access to complete manual tuning. If
you do not have SERVICE level access, please contact the factory.