1-82 Programming Your Application
690+ Series Frequency Inverter
Functional Description
P gain
I gain
dt
D gain
d / dt
feed forward
error
output
feed forward gain
+300.00
-300.00
P gain
limit
limit
limit
limiting
enable
PID output
• Functions as P, PI, PD and PID with filtering.
• Single symetric limit on output.
PID Stage
The formula which describes the action of the PID in the ‘S ‘domain is as follows:
PID = K
P
+ K
i
+ K
D
S
S
F
1 + S T
where: K
P
is the proportional gain
K
i
is the integral gain
K
D
is the derivative gain
T
F
is the filter time constant
To Next Page
Loading...
