Omron E5EK - MANUAL 2 User Manual page 57

CHAPTER 4 APPLIED OPERATION
' Setting the LBA
detection time
' Determining the
LBA detection
time
Parameters
4–12
The LBA detection time is automatically set by auto tuning (except in
heating and cooling control).
If the optimum LBA detection time cannot be obtained by auto tuning,
set the time in the "LBA detection time" parameter (level 2 mode).
Calculate the LBA detection time as follows:
(1) Set output to maximum.
(2) Measure the time it takes for the input change width to reach the LBA
detection width (default: 0.2 % full scale).
(3) Take a value twice that of the measurement time as the LBA detection
time.
Measurement time Tm
LBA detection time = Tm x 2
(4) In the case of ON/OFF operation, set the LBA detection time to a val
ue longer than the control period.
Symbol Parameter Name: Mode
AT Execute/Cancel : Level 1
LBA detection time
LBA detection width : Expansion
PV
0.2%FS
Output
Automatic setting of LBA detec-
tion time
: Level 2 Setting of LBA detection time
Changing of LBA detection
width
Time
Application