TECO E510s Series - Page 296

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.)