FAQ
Q1. What information should be provided to get a clear model with quotaion?
Please directly provide input output voltage, power, applied machine, specific requested function in inquiry.
Q2. They have EMC filter in the standard version? In option?
EMC filter is option (under 7.5kw, EMC is bulit-in; >7.5kw, EMC filter is external).
Q3. They have input DC or AC REACTOR? In option?
Both of input and output reactor is external and option. And there is a bulit-in DC reactor within VFD, but this reactor is to protection internal electric components;
Q4. They have a PID control? Multiple PID control references?
Yes, there is one road PID control with two parameter groups, this means two different parameter setting can be configured and switched to each other. Multiple PID is multi road PID control, or multi PID control groups?
Q5. What is the maximum wiring distance between the output and the motor in the standard version?
There are three options for different sites: - ≤20m, VFD and motor can be directly connected; -20m 100m, VFD and motor can be dirctly connected, except adjust carrier frequency, still need to add output AC reactor;
Q6. What is the minimum value of the power factor?
The Maximum power factor is 0.95 (the better, the bigger power factor ). But the final power factor is depens on load type and motor's power factor. If motor's power is too little, VFD still can not make better power.