- 22 -
1:Negative
Unwinding:
1
Straight
line:1
0
:
Positive
When feedback signal is lower PID given, inverter need to increase output frequency make PID
balance
When feedback signal is bigger than PID given, inverter need to decrease output frequency to
make PID balance
1. Negative
When feedback signal is lower than PID given, inverter need to decrease output frequency to
make PID balance
When feedback signal is bigger than PID given, inverter need to increase output frequency to
make PID balance