Omron E5CC-T User Manual

5 Advanced Operations
5 - 28
E5@C-T Digital Temperature Controllers User’s Manual (H185)
• Detection is not possible if a fault occurs that causes a decrease in temperature while control is
being applied to decrease the temperature (e.g., a heater burnout fault).
z Parameters Related to Loop Burnout Alarms
• A loop burnout alarm can be output by setting the alarm 1 type to 12 (LBA).
• A setting of 12 (LBA) can be set for alarms 2 to 4, but the setting will be disabled.
• Loop burnouts are not detected during autotuning or manual operation.
• If the Reset Operation parameter is set to stop control, loop burnout alarms are not detected
during reset or standby status.
• If the alarm 1 latch is set to ON, the latch will be effective for the loop burnout alarm.
z Automatically Setting the LBA Detection Time
• The LBA detection time is automatically set by auto-tuning.
(It is not set automatically, however, for heating/cooling control.)
• If the optimum LBA detection time is not obtained by auto-tuning, set the LBA Detection Time
parameter (Advanced Function Setting Level).
z Determining the LBA Detection Time
• To manually set the LBA detection time, set the LBA Detection Time parameter to twice the LBA
reference time given below.
(1) Set the output to the maximum value.
(2) Measure the time required for the width of change in the input to reach the LBA band.
(3) Set the LBA Detection Time parameter to two times the measured time.
Parameter
name
Display Setting range Remarks Level
PID * LBA
Detection Time
(*: 1 to 8)
*lba
0 to 9,999 (s)
Setting 0
disables the LBA
function.
PID Setting Level
(for PID control)
LBA Detection
Time
lba
Advanced
Function Setting
Level (for
ON/OFF control)
LBA Level lbal
Temperature input 0.1 to 999.9 (°C/°F) Default: 8.0
(°C/°F)
Advanced
Function Setting
Level
Analog input 0.01 to 99.99
(%FS)
Default: 10.00%
FS
LBA Band lbab
Temperature input 0.0 to 999.9 (°C/°F) Default: 3.0
(°C/°F)
Analog input 0.00 to 99.99
(%FS)
Default: 0.20%
FS
PV
MV = 100%
Temperature
Time
Measurement time
Tm
LBA band
LBA detection time = Tm × 2

Omron E5CC-T Specifications

General

Brand	Omron
Model	E5CC-T
Category	Temperature Controller
Language	English