CDE360 Vector Control AC Drive Chapter 6 Parameters Description
Table 6- 14 PID action direction selection
E5.21
(PID action direction)
X terminal function
(Reverse PID action direction)
Final PID
action direction
0(Positive)
OFF
Positive
0(Positive)
ON
Negative
1(Negative)
OFF
Negative
1(Negative)
ON
Positive
E5.22
Range: 0.0~100.0
Default: 0.5
PID differential
limit
Unit: %
It is used to set the PID differential output range. In PID control, the
differential operation may easily cause system oscillation. Thus, the PID
differential regulation is restricted to a small range.
E5.23
Range: 0.00~99.99
Default: 1.00
Maximum
deviation
between two PID
outputs in
forward direction
Unit: %
This function is used to limit the deviation between two PID outputs (2 ms
per PID output) to suppress the rapid change of PID output and stabilize
the running of the AC drive.
E5.23
and
E5.24
respectively correspond to the maximum absolute value
of the output deviation in forward direction and in reverse direction.
E5.24
Range: 0.00~99.99
Default: 1.00
Maximum deviation
between two PID
outputs in reverse
direction
Unit: %
Refer to E5.23.
E5.25
Range: 0.00~
b0.00
Default: 0.00
Cut-off frequency
of PID reverse
rotation
Unit: Hz
In some situations, only when the PID output frequency is a negative
value (AC drive reverse rotation), PID setting and PID feedback can be
equal. However, too high reverse rotation frequency is prohibited in some
applications, and FA-08 is used to determine the reverse rotation
frequency upper limit.
E5.26
Range: 0.0~100.0
Default: 0.0
PID deviation
limit
Unit: %
Base on PID setting value.If the deviation between PID feedback and PID
setting is smaller than the value of
E5.26
, PID control stops. The small
deviation between PID feedback and PID setting will make the output
frequency stabilize, effective for some closed-loop control applications.
See the following figure.
