How To Use Error Output - Omron E5AK User Manual

8.3 How to Use Error Output

F LBA
F Input errors
F A/D converter
error
F Remote SP input
error
The E5AK controller allows you to assign error output to terminals as
outputs.
For details on output assignments, see 3.3 Setting Output Specifications
(page 3-6).
• LBA (Loop Break Alarm) can be used as a means for detecting loop
breaks when the control loop is not functioning normally. For details,
see page 4-15.
• LBA allows you to detect the following errors:
(1) Heater burnout
(2) Output error (contact weld, damaged transistors, etc.)
(3) Sensor error (constant input values, etc.)
• If you use the LBA function, set the loop break detection time
matched to the control characteristics in the "LBA detection time"
parameter (level 2 mode).
• If you assign error 1 as the output, an error can be output to auxiliary
output 1 or auxiliary output 2 when input is in error. When this error
occurs, remedy by following the description for "Input error" (page
8-3).
• If you assign error 2 as the output, an error can be output to auxiliary
output 1 or auxiliary output 2 when the A/D converter is in error.
When this error occurs, remedy by following the description for "A/D
converter error" (page 8-3).
• If you assign error 3 as the output, an error can be output to auxiliary
output 1 or auxiliary output 2 when the remote SP input error occurs
while the remote SP function is enabled. For details on error displays
and meanings, see Chapter 4 Applied Operation/4.4 How to Use the
Remote SP (page 4-11).
• When an error occurs, check the state of the remote SP connection. If
the lead is broken or disconnected, the remote SP scaling lower limit
is displayed blinking on the PV/SP display or remote SP monitor dis-
play.
8.3 How to Use Error Output
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