4-230
Table 4.3.17 Guide for PID parameter adjustment
Increase Setting Value
Decrease Setting Value
Main Feature
Proportional
Gain (P)
(Pros) Increase response time
(Cons) Might cause pump jittering
(Pros) Reduce jittering
(Cons) Slow down response
Increase
stabilized time
Integral
Time (I)
(Pros) Smooth output frequency
(Cons) Slow down response
(Pros) Fast response
(Cons) Change rapidly output
frequency
For smooth
feedback
variations
Differential
Time (D)
(Pros) Avoid overshooting
(Cons) System instability or
motor jittering
(Pros) System stability
(Cons) Overshooting easily
Respond to
system rapid
variations
Notes:
PID parameters can be modified during the inverter is running.
Cons: Disadvantage
Pros: Advantage
Fig. 4.3.102 PID Diagram for PID parameter adjustment
23- 09
Tolerance Range of Constant Pressure
Range
【0.01 ~ 650.00】PSI
23- 34
Tolerance Range of Constant Pressure 2
Range
【0.01 ~ 650.00】PSI
When pressure feedback value is higher than 23-02 (operation pressure setting), inverter
output frequency will decrease downward into sleep status. PID starts (output frequency will
increase) when pressure feedback value is less than (23-02) – (23-09).
23- 10
Sleep Frequency of Constant Pressure
Range
【0.0~400.0】Hz
When inverter output frequency falls below 23-10 (sleep frequency of constant pressure), it
starts to count the sleep time (23-11).
* : (When the motor
’
s maximum output frequency is over than 300Hz, the frequency resolution is
0.1Hz.)
Summary of Contents for E510-201-SH
Page 1: ......
Page 28: ...3 14 b 200V 2HP 1 3PH 200V 3HP 20HP 400V 3HP 25HP IP20 NEMA1 ...
Page 29: ...3 15 c 200V 25HP 400V 30HP d 200V 30HP 40HP 400V 40HP 75HP ...
Page 51: ...3 37 3 5 Standard Wiring 10V AI1 AI2 AGND E P P ...
Page 72: ...4 6 4 1 4 Example of keypad operation Example 1 Modifying parameters ...
Page 74: ...4 8 4 1 5 Operation control ...
Page 206: ...4 140 Acceleration Deceleration calculation of mode 2 ...
Page 316: ...4 250 6 Timer mode 6 FLASH Timer mode 2 7 Timer mode 7 FLASH Timer mode 3 ...
Page 424: ...REVISIONS Date Manual Number Revision May 2017 4KA72X645T01 First edition ...
Page 425: ......