Steve Bailey
Lifetime Supporting Member + Moderator
I need to make some parameter changes to a Danfoss FC300 drive. I'm not sure which ones I'll need to change. I have the manual, but it only gives a list of the parameters with very little detail about what they do. The "Info" button on the drive keypad has a better description, but the drive is in a closed cabinet and they need to run, so I can't be reading through those help files to figure out the best approach. Does anyone know if there a manual with a complete description of the parameters?
Failing that, here's what I need to do. The drive gets a 4 - 20 mA speeed reference from the PLC. The operator can enter the speed from the HMI over a range of zero to 100 percent in steps of one percent. The customer would like a finer step size, but they don't have the software to modify the HMI. Since they only operate over a range of about 25 to 40 Hz I thought I could tinker with minimum and maximum speed settings so that 4 mA commands a 25 Hz speed and 20 mA commands 40 Hz. I tried changing parameters 3-02 and 3-03 but that didn't work out as I thought it would have.
Failing that, here's what I need to do. The drive gets a 4 - 20 mA speeed reference from the PLC. The operator can enter the speed from the HMI over a range of zero to 100 percent in steps of one percent. The customer would like a finer step size, but they don't have the software to modify the HMI. Since they only operate over a range of about 25 to 40 Hz I thought I could tinker with minimum and maximum speed settings so that 4 mA commands a 25 Hz speed and 20 mA commands 40 Hz. I tried changing parameters 3-02 and 3-03 but that didn't work out as I thought it would have.
