Senlan Hope800 Series Manual page 99

smoothly switched according to the operating frequency or the arithmetic unit output, particularly
suitable for the winding control where the winding diameter changes greatly.
PID parameter 2
PID parameter 1
 Principle of PID parameter regulation: first raise the proportional gain from a smaller value(e.g. 0.20)
until the feedback signal starts oscillating, then lower it by 40~60 ％ to stabilize the feedback signal;
reduce the integral time from a larger value(e.g. 20.00s) until the feedback signal starts oscillating, then
raise it by 10~50% to stabilize the feedback signal. Differential action can be introduced if there is a high
requirement for overshoot and dynamic error.
F7-12
Setting
0.001~10.000s
range
It should be generally set to a value five to ten times smaller than the response time of the controlled
object.
F7-13
Setting
0.0~20.0％(PID setpoint=100%)
range
When the error of the setpoint and feedback is less than the error limit, PID stops its regulation and the
output remains constant. This function eliminates frequent actions during the control. See the following
diagram.
F7-14
Setting
0.00~20.00s
range
This parameter enables the setpoint to increase and decrease smoothly, thus reducing the impact
generated at the moment PID is introduced.
F7-15
Setting
0: Positive
range
"Positive" means when the setpoint is increased the speed is required to be increase, for example, in
heating control; while "negative" means when the setpoint is increased the speed is required to be
lowered, for example, in cooling control.
Maximum frequency
Sampling period
Error limit
Deviation limit
Operating
frequency
Closed loop
regulation
Setpoint up/down time
PID regulation characteristic
PID parameter 2
PID parameter 1
Operating
frequency
Default
Default
Reference
Feedback
Default
Default
1: Negative
6 Parameter Description
Arithmetic unit output
0.010s Change
0.0% Change
Time
Time
0.00s Change
0 Change
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