104
4. Parameter description
Parameter
Parameter
Factory
setting
Setting
range
Remarks
160
0
0~5
4
When in ‘monitoring output voltage’ mode, the screen will
display the value of the input signal across terminal 4-5
(mA/V).
5
When in ‘monitoring output voltage’ mode, the screen will
display the current thermal accumulating record for inverter.
4.49
PID control (P.170~P.183)
P.170 “PID selection”
P.172 “PID proportion Gain ”
P.171 “PID feedback control method
selection”
P.173 “PID integration Gain ”
P.174 “PID differential Gain”
P.175 “Abnormal deviation level”
P.176 “Exception duration time”
P.177 “Exception handling mode”
P.178 “Sleep detect deviation”
P.179 “ Sleep detect duration time”
P.180 “Revival level”
P.181 “Outage level”
P.182 “Upper integral”
P.183 “Deceleration step length of pressure stability”
● During the operation of PID control, the frequency displayed on the screen is the output frequency
of the inverter.
● The function of Stall Prevention operates according to the setting frequency before PID control.
Please pay attention to the Gain setting during the process of PID Gain setting, for there is case in
which the output current can not be limited absolutely.
● Under PID control, the output frequency is also limited between maximum frequency and
minimum frequency.
● Please refer to the instructions of P.60 about the input signal filter on terminal 4-5 and terminal 2-5.
● The sketch map of PID function is as follows:
s
T
:
Sampling period
＝
10ms
Parameter
Factory setting
Setting range
Remarks
170
0
0
,
1
,
2
---
171
100%
0~1000%
---
172
20
1~100
---
173
1s
0~100s
---
174
0
0~1000ms
---
175
70%
0~100%
---
