Omron E5CD-800 Manual page 38

E5CD-800/E5ED-800
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
Input error
s.err
[[[[
Display
range
exceeded
]]]]
A/D
converter
e333
error
Memory
e111
error
Overcurrent
ffff
HB or HS
ct1
alarm
lcr1
Ambient
temperature
---- out of
monitor
range
38
Meaning
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
Temperature resistance
thermometer or thermocouple input:
SP Lower Limit - 20°C to SP Upper
Limit + 20°C
(SP Lower Limit - 40°F to SP Upper
Limit + 40°F)
ESIB input:
Same as specified input range.
Analog input:
Scaling range -5% to 105%
This is not an error. It
is displayed when the
control range is wider
Below -1,999
than the display
range and the PV
exceeds the display
range. The PV is
displayed for the
range that is given on
Above 9,999
the left (the number
without the decimal
point).
There is an error in the internal
circuits.
There is an error in the internal
memory operation.
This error is displayed when the peak
current exceeds 55.0 A.
If there is a HB or HS alarm, the No.
1 display will flash in the relevant
setting level.
Ambient temperature exceeded the
following display range.
Temperature unit = °C: −30 to 75°C
Temperature unit = °F: 10 to 171°F
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.
-
After checking the input error, turn
the power OFF then back ON again.
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.
-
-
Make sure that the ambient
temperature of the Controller is
within the rated range. The following
factors may be present. Check
them.
• The Controller is subjected to
heat radiated from heating
equipment.
• The Controller is subjected to
direct sunlight.
• The Controller is subjected to
icing or condensation.
Operation
After the error occurs and it is
displayed, the alarm output will
operate as if the upper limit was
exceeded.
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, 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@D Digital
Temperature Controllers User's
Manual (Cat. No. H224) for
information on the controllable range.
The control outputs and auxiliary
outputs turn OFF.
The control outputs and auxiliary
outputs turn OFF.
Control continues and operation is
normal.
The error message will appear for the
following displays.
Heater Current Value 1 Monitor
Leakage Current Value 1 Monitor
The No. 1 display for the following
parameter flashes in Operation Level
or Adjustment Level.
Heater Current Value 1 Monitor
Leakage Current Value 1 Monitor
However, control continues and
operation is normal.
Control continues and operation is
normal.