Omron E5CZ User Manual

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

Omron E5CZ Specifications

General

Display Type	7-segment digital display
Dimensions	48 x 48 x 78 mm
Number of Control Outputs	1
Ambient Operating Temperature	-10 to 55°C
Control Method	PID control, ON/OFF control
Input Type	Thermocouple, RTD
Supply Voltage	100 to 240 VAC
Output Type	Relay, Voltage, Current
Alarm Output	1 or 2 (depending on model)
Setting Resolution	0.1 or 1 (depending on input type)
Protection Rating	IP20
Ambient Operating Humidity	25% to 85% RH (non-condensing)