Chapter 5 Function parameter
105
Ch
ap
ter 5
Panel potentiometer setting
2
AI1-AI2 reference
3
High-speed pulse setting
4
Communications reference
5
AI1+AI2 reference
6
MAX(|AI1|, |AI2|) reference
7
MIN (|AI1|, |AI2|) reference
8
Analog AI3 reference
9
This parameter is used to select the process PID feedback signal channel.The feedback value
of process PID is also a relative value, the setting range is from 0.0% to 100.0%.
E2.03 PID action direction
Positive
0
0
☆
negative
1
E2.04 PID reference feedback range
0 to 65535
1000
☆
PID reference feedback range is a dimensionsless unit for PID setting display(d0.15) and PID
feedback display(d0.16).
The 100.0% of the relative value of PID reference feedback corresponds to a setting feedback
range(E2.04). If E2.04 is set to 2000, when PID setting is 100.0%, PID setting display(d0.15) will
be 2000.
E2.05 PID inversion cutoff frequency 0.00 to F0.19(maximum frequency)
0.00Hz
☆
In some cases, only when the PID output frequency is negative (i.e.the inverter reverses), PID
can control the reference value and the feedback value to the same states, but the excessive
inversion frequency is not allowed in some occasions, E2.05 is used to the upper limit of
determine inversion frequency.
E2.06 PID deviation limit
0.0% to 100.0%
0.0%
☆
When the deviation between PID reference value and PID feedback value is less than E2.06,
PID will stop regulating action. Thus, when the deviation is lesser, the output frequency will be
stable, it is especially effective for some closed-loop control occasions.
E2.07 PID differential limiting
0.00% to 100.00%
0.10%
☆
The role of the differential is more sensitive in PID regulator, is likely to cause system
oscillation, generally the role is limited to a smaller range, E2.07 is used to set PID differential
output range.
E2.08 PID reference change time 0.00s to 650.00s
0.00s
☆
The PID reference change time means the required time that PID reference value changes
from 0.0% to 100.0%.When the PID reference changes, the PID reference value will change
linearly according to the reference change time to reduce the adverse effects to the system caused
by a sudden reference change.
E2.09 PID feedback filter time
0.00s to 60.00s
0.00s
☆
E2.10 PID output filter time
0.00s to 60.00s
0.00s
☆
E2.09 is used for filtering the PID feedback quantity, the filter helps reduce the influence of
interference to the feedback quantity, but will bring the response performance of the process closed
loop system.
E2.10 is used for filtering the PID output frequency, the filter will weaken the sudden change
of the inverter output frequency, but it will also bring the response performance of the process
closed loop system.
E2.11 PID feedback loss detection value
0.0%: not judged feedback loss
0.1% to 100.0%
0.0%
☆
E2.12 PID feedback loss detection time
0.0s to 20.0s
0.0s
☆
This function code is used to determine whether the PID feedback is lost or not.
When the PID feedback is less than the PID feedback loss detection value(E2.11), and the
duration is longer than the PID feedback loss detection time(E2.12), the inverter will alarm fault
ID Err.31, and troubleshoot according to the selected method.
E2.13 Proportional gain KP1
0.0 to 200.0
80.0
☆
