Originally Posted by
Todd Zuercher
Help!
We have a CNC router with a 13.5kw HSD ES988 spindle. The machine came with an HSD VFD that failed. HSD no longer supplies or supports their VFDs, and the machine manufacturer is being less than helpful because I chose not to purchace the repacement drive from them at more than 3X the normal retail price. I am trying to replace the HSD drive with a Yaskawa CIMR-F7U40151F-056 drive (15kw drive with 1000hz firmware). The machine also has a 40ohm 1.2kw braking resistor. The spindle is 4 pole with a max speed of 24000rpm (800hz) 380v 6kw, base frequency of 12000rpm 400hz 380v 13.5kw (see attached motor data sheet)
The Yaskawa CIMR-F7U40151F-056 drive (15kw drive with 1000hz firmware) is not working out for me with the settings I’m trying. I set the parameters to what I think I’m reading they should be in the spindle’s manual, but some things are unclear. Right now when I try to start the spindle with the frequency set to 300hz, the spindle starts, but accelerates very slowly only reaching about 90hz before the drive shuts down after about 10 seconds due to over current (it is pulling about 40amps according to the VFD’s screen )
I set the following parameters settings in the quick setup menu. (All other parameters are set to defaults, to the best of my knowledge.)
B1-03 = 0 (Stopping Method Selection, 0=Ramp to Stop)
C1-01 = 6 sec (Acceleration Time)
C1-02 = 6 sec (Decceleration Time)
E1-01 = 480V (Input Voltage Setting)
E1-03 = F (V/F Pattern Selection)
E1-04 = 800Hz (Maximum Output Frequency)
E1-05 = 380V (Maximum Output Voltage)
E1-06 = 400Hz (Base Frequency)
E1-09 = 1.5Hz (Minumum Output Frequency) (I don’t know what this should be set to so I left as default)
E1-13 = 380V (Base Voltage)
E2-01 = 32A (Motor Rated Current)
E2-04 = 4 (Motor Poles)
E2-11 = 13.5 (Motor Rated Output)
L1-01 = 1 (Motor Overload protection, 1=standard fan cooled)
L3-04 = 0 (Stall Prevention Selection, 0=disabled)
Do you have any suggestions of what parameters I may be setting wrong, or other parameters I need to set and their values?