tim_callinan
Member
Im trying to teach a couple of labs on VFDs at a community college. We have some motor control trainers with P525s and 3 phase motors from Automation direct. The trainer also has Pushbuttons, three way switches and a POT. I've attached the lab objectives we use. At this stage, the students are fairly savvy and can read a manual and do basic wiring however they have not really used a PLC yet - just programming the VFD using the front panel. If possible- if there are any PF525 experts out there - could they have a look at the following objectives and see if they have any ideas?? Thanks for any advice...Tim
1) When the motor is running – turn on the green LED, if it is stopped – turn on the red LED. Set the max current per phase to 0.5 amps. If the current draw goes above this value – fault the VFD out and turn on the yellow LED. Demo this to your instructor.
2) Jog the motor and utilize DC braking for quicker stops - connect the blue push button to one of the VFD's digital inputs. Then, configure this input specifically for initiating the motor's jog function. Enable the DC braking feature within the VFD settings to ensure the motor stops more rapidly after jogging.
1) When the motor is running – turn on the green LED, if it is stopped – turn on the red LED. Set the max current per phase to 0.5 amps. If the current draw goes above this value – fault the VFD out and turn on the yellow LED. Demo this to your instructor.
2) Jog the motor and utilize DC braking for quicker stops - connect the blue push button to one of the VFD's digital inputs. Then, configure this input specifically for initiating the motor's jog function. Enable the DC braking feature within the VFD settings to ensure the motor stops more rapidly after jogging.