Omron E5CC-T Manual page 21

Error Displays (Troubleshooting)
When an error occurs, the No. 1 display or No. 2 display shows the error code.
Take necessary measure according to the error code, referring the following table.
Display Name
The input value exceeded the control
range.*
The input type is not set correctly.
The sensor is disconnected or short-
circuited.
The sensor is not wired correctly.
The sensor is not wired.
* Control Range
s.err
Input error Temperature resistance
thermometer or thermocouple input:
ESIB input:
Analog input:
[[[[
Below -1,999
Display
range
exceeded
]]]]
Above 9,999
A/D
There is an error in the internal
e333
converter
circuits.
error
Memory There is an error in the internal
e111
error memory operation.
This error is displayed when the peak
ffff
Overcurrent
current exceeds 55.0 A.
ct1
If there is a HB or HS alarm, the No.
ct2
HB or HS
1 display will flash in the relevant
alarm
lcr1
setting level.
lcr2
"----" will be displayed for the Valve
Opening Monitor parameter if any of
the following error occurs.
• Motor calibration has not been
Potentiometer
Input Error
• The wiring of the potentiometer is
----
(Position-
proportional
• The potentiometer input value is
Models Only)
Meaning
SP Lower Limit - 20°C to SP Upper
Limit + 20°C
(SP Lower Limit - 40°F to SP Upper
Limit + 40°F)
Same as specified input range.
Scaling range -5% to 105%
This is not an error. It
is displayed when the
control range is wider
than the display
range and the PV
exceeds the display
range. The PV is
displayed for the
range that is given on
the left (the number
without the decimal
point).
performed.
incorrect or broken.
incorrect (e.g., the input is out of
range or the potentiometer has
failed).
Action
Check the wiring for input to be sure
it is wired correctly, not broken, and
not shorted. Also check the input
type.
If there are no problems in the wiring
or input type settings, cycle the
power supply.
If the display remains the same,
replace the Digital Temperature
Controller.
If the display is restored to normal,
then the probable cause is external
noise affecting the control system.
Check for external noise.
Note: For a temperature resistance
thermometer, the input is
considered disconnected if
the A, B, or B' line is broken.
-
First, cycle the power supply.
If the display remains the same, the
controller must be repaired.
If the display is restored to normal,
then a probable cause can be
external noise affecting the control
system. Check for external noise.
First, cycle the power supply.
If the display remains the same, the
controller must be repaired.
If the display is restored to normal,
then a probable cause can be
external noise affecting the control
system. Check for external noise.
-
-
Check for the above errors.
E5@C/E5@C-T
Operation
After the error occurs and it is
displayed, the alarm output will
operate as if the upper limit was
exceeded.
It will also operate as if transfer
output exceeded the upper limit.
If an input error is assigned to a
control output or auxiliary output, the
output will turn ON when the input
error occurs.
The error message will appear in the
display for the PV.
Note: 1. The heating and cooling
control outputs will turn
OFF.
2. When the manual MV, MV
at stop, MV at reset, or MV
at error is set, the control
output is determined by the
set value.
Control continues and operation is
normal.
The value will appear in the display
for the PV.
Refer to the E5@C Digital
Temperature Controllers User's
Manual (Cat. No. H174) or the
E5@C-T Digital Temperature
Controllers Programmable Type
User's Manual (Cat. No. H185) for
information on the
controllable range.
The control outputs, auxiliary
outputs, and transfer outputs turn
OFF. (A current output will be approx.
0 mA and a linear voltage output will
be approx. 0V.)
The control outputs, auxiliary
outputs, and transfer outputs turn
OFF. (A current output will be approx.
0 mA and a linear voltage output will
be approx. 0V.)
Control continues and operation is
normal.
The error message will appear for the
following displays.
Heater Current Value 1 Monitor
Heater Current Value 2 Monitor
Leakage Current Value 1 Monitor
Leakage Current Value 2 Monitor
The No. 1 display for the following
parameter flashes in Operation Level
or Adjustment Level.
Heater Current Value 1 Monitor
Heater Current Value 2 Monitor
Leakage Current Value 1 Monitor
Leakage Current Value 2 Monitor
However, control continues and
operation is normal.
Close control: The control output is
OFF or the value that is set for the
MV at PV Error parameter is output.
Floating control: Operation will be
normal.
21