4-89
10-15
Integral Value Resets to Zero when Feedback Signal Equals the Target Value
Range
【
0
】
: Disable
【
1
】
: After 1 Sec
【
30
】
: After 30 Sec ( Range:- 1 ~ 30Sec)
10-15=0: Integral accumulator reset function is disabled.
10-15=1~30: When PID feedback value reaches the set point, the integral accumulator is reset after 1~30
seconds upon an inverter stop condition. The inverter will start running again based on the target and feedback
value.
10-16
Allowable Integration Error Margin (Unit) (1 Unit = 1/8192)
Range
【
0 ~ 100
】
%
10-16 sets integrator tolerance level after being reset to 0.
10-17
PID Sleep Frequency Level
Range
【
0.00~650.00
】
Hz
10-18
PID Sleep Function Delay Time
Range
【
0.0 ~25.5
】
Sec
10-19
PID Wake-up Frequency Level
Range
【
0.00 ~ 650.00
】
Hz
10-20
PID Wake-up Function Delay Time
Range
【
0.0 ~ 25.5
】
Sec
The PID Sleep function is used to stop the inverter when the PID output falls below the PID sleep frequency
level (10-17) for the time specified in the PID sleep delay time parameter (10-18).
The inverter wakes up from a sleep condition when the PID output (Reference frequency) rises above the PID
wake-up frequency level (10-19) for the time specified in the PID wake-up delay time (10-20).
Set parameter 10-17 to a value greater than 0 to enable the PID sleep function.
Refer to figure 4.3.11 for PID sleep / wakeup operation.
Output Frequency (Fout)
Frequency Reference
(Fref)
t
wake up delay time
(10-20)
sleep delay time
(10-18)
Fmin
(01-08)
Sleep
Frequency
(10-17)
Wake-up
Frequency
(10-19)
Output
Frequency
Figure 4.3.11: Timing diagram PID sleep / wake-up
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