83
Loop Break Alarm
Section 4-11
3.
Set the “LBA detection time” parameter to two times the measured time.
LBA Level
• Set the control deviation when the control loop is working properly.
• The default is 8.0 (
°
C/
°
F) for Controllers with Thermocouple/Resistance
Thermometer Universal-inputs and 10.00% FS for Controllers with Analog
Inputs.
LBA Band
• 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 Universal-inputs and 0.20% FS for Controllers with Analog
Inputs.
Operating Procedure
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.
Operation Level
Initial Setting Level
1.
Press the
O
key for at least three seconds to move from the operation
level to the initial setting level.
Initial Setting Level
2.
Select the “alarm 1 type” parameter by pressing the
M
key.
Initial Setting Level
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.
Advanced Function Setting Level
5.
Press the
D
key to enter the password (
−
169), and move from the initial
setting level to the advanced function setting level.
Advanced Function Setting Level
6.
Select the “LBA detection time” parameter by pressing the
M
key.
C
25
100
PV/SP
in-t
5
Input type
alt1
2
Alarm 1 type
alt1
12
amov
0
Move to ad-
vanced function
setting level
init
off
Parameter
initialization
lba
0
LBA detection
time
Summary of Contents for E5AZ
Page 2: ...E5CZ E5CZ U E5AZ E5EZ Digital Temperature Controller User s Manual Produced September 2008 ...
Page 3: ...iv ...
Page 23: ...xxiv ...
Page 53: ...30 Using the Support Software Port Section 2 3 ...
Page 79: ...56 Using HB and HS Alarms Section 3 10 ...
Page 115: ...92 Output Adjustment Functions Section 4 14 ...
Page 173: ...150 Communications Setting Level Section 5 8 ...
Page 205: ...182 Index precautions 22 terminal arrangement 21 terminals 21 ...