Chapter 5 Parameter Introductions
135
This function is used to stop the variable pump (auxiliary pumps are all down)
when the flow is zero. In this case, if the frequency of variable pump were lower
than the “dormancy threshold”, the dormancy delay would be start.
If the frequency is still below the dormancy threshold (P7.17) after the dormancy
delay time (P7.16), the variable pump will shutdown. As a result, the entire device
is in dormancy state.
To awake the device, the pressure feedback must be reduced to awakening
threshold. Then the variable pump would startup. As shown in Fig.5-7-3.
t
t
Delay Time
Dormancy
threshold
Awakening
Threshold
Mot or
Freq.
PI
Feedback
Fig. 5-7-3 Dormancy and Awakeing diagram
P7.19 PID amplitude modulation
coefficient
Setting range: 0,1【0】
0:1*(P2.11) 1 :( Setting frequency 2 / P0.07)*(P2.11)
Notes:
This parameter is valid only when frequency setting method is combined
frequency (P0.03>1) and frequency setting 1 is analog PID (P0.01=9, P7.01<9);
When P7.19 is set to 0, amplitude of analog PID is P2.11, When P7.19 is set to 1, the
amplitude is related to setting frequency 2 , and that is((setting frequency 2/P0.07)*
P2.11);
5.9 Fixed-length Function (Group P8)
P8.00 Preset length
Range: Max[0.000,P8.06]~65.53 m
【0.000m】
P8.01 Actual length
Range: 0.000~65.53 m 【0.000 m】
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