Rockwell Automation 23P PowerFlex Digital DC Drive - Manual (Page 295)

Rockwell Automation Publication 20P-UM001K-EN-P - July 2014 295
Application Notes Appendix C
9. Set the brake slip definition.
Sets the number of encoder or resolver revolutions to define a brake
slippage condition.
10. Set the brake float tolerance.
Sets the level at which the float timer will start counting.
11. Set the brake float time.
Sets the time to maintain zero speed with brake open when the run
command has been released.
The drive is now setup and Torque Prove for the mechanical brake control is
activated. The load can now be applied.
Optimize the Speed Loop Tuning
You can now use DriveObserver to optimize the speed loop tuning. Use a 30
second time scaling on the X-axis. Using DriveObserver, setup the following
traces.
Run the crane up and down under full load. Adjust acceleration and deceleration
rates if required.
Parameter Setting
1110 [Brk Slip Count] 0.25 (Default)
Parameter Setting
1111 [Float Tolerance] 52.50 RPM
Parameter Setting
1113 [ZeroSpdFloatTime] 5.000 Secs (Default)
Parameter Setting
1008 [Spd Reg Fdbk] Scaled to minimum and maximum speed limits
113 [Ramp Out] Scaled to minimum and maximum speed limits
200 [Arm Current] Scaled to current limit value
41 [Current Reg In] Default scaling