Omron E5CN User Manual page 118

Loop Break Alarm
LBA Level
LBA Band
Operating Procedure
Operation Level
PV/SP
C
25
100
Initial Setting Level
Input type
in-t
5
Initial Setting Level
Alarm 1 type
alt1
2
Initial Setting Level
alt1
12
Move to ad-
amov
vanced function
setting level
0
Advanced Function Setting Level
Parameter
init
initialization
off
Advanced Function Setting Level
LBA detection
lba
time
0
96
3. Set the "LBA detection time" parameter to two times the measured time.
• Set the control deviation when the control loop is working properly.
• The default is 8.0 ( C/ F) for Controllers with Thermocouple/Resistance
Thermometer Multi-Inputs and 10.00% FS for Controllers with Analog
Inputs.
• There is assumed to be an error in the control loop if the control deviation
is greater than the threshold set in the "LBA level" parameter and if the
control deviation does not change by at least the value set in the "LBA
band" parameter.
• The default is 3.0 ( C/ F) for Controllers with Thermocouple/Resistance
Thermometer Multi-Inputs and 0.20% FS for Controllers with Analog
Inputs.
Perform the following procedure to use the loop break alarm.
In this example, the LBA detection time is set to 10, the LBA level is set to 8.0,
and the LBA band is set to 3.0.
1. Press the O key for at least three seconds to move from the operation
level to the initial setting level.
2. Select the "alarm 1 type" parameter by pressing the M key.
3. Press the U key to set the parameter to 12.
4. Select the "move to advanced function setting level" parameter by press-
ing the M key.
5. Press the D key to enter the password ( 169), and move from the initial
setting level to the advanced function setting level.
6. Select the "LBA detection time" parameter by pressing the M key.
Section 4-12