266 Parameters
40.33
Set 1 integration time
Defines the integration time for the process PID controller.
This time needs to be set to the same order of magnitude
as the reaction time of the process being controlled,
otherwise instability will result.
Note:
Setting this value to 0 disables the “I” part, turning
the PID controller into a PD controller.
60.0 s
0.0…9999.0 s
Integration time.
1 = 1 s
40.34
Set 1 derivation time
Defines the derivation time of the process PID controller.
The derivative component at the controller output is
calculated on basis of two consecutive error values (E
K-
1
and E
K
) according to the following formula:
PID DERIV TIME × (E
K
- E
K-1
)/
T
S
, in which
T
S
= 2 ms sample time
E = Error = Process reference - process feedback.
0.000 s
0.000…10.000 s
Derivation time.
1000 = 1 s
No.
Name/Value
Description
Default
FbEq 16
Ti
O
I
G × I
G × I
I = controller input (error)
O = controller output
G = gain
Ti = integration time
Time
Error/Controller output
ACS380 FW.book Page 266 Friday, May 4, 2018 4:18 PM
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