158
Appendix A
Meaning
This error is displayed when the heater current value exceeds 55.0 A.
Action
Control continues, allowing normal operation. An error message is displayed when the following items are dis-
played.
Heater current 1 value monitor
Leakage current 1 monitor
Meaning
When heater burnout or an HS alarm occurs, the No. 1 display in the applicable setting level flashes.
Action
When either heater burnout or HS is detected, the HA indicator lights and the No. 1 display flashes for the
applicable “heater current 1 value monitor,” or “leakage current 1 monitor” parameters in the operation level
and adjustment level. Control continues, allowing normal operation.
Troubleshooting
Checking Problems
If the Temperature Controller is not operating normally, check the following points before requesting repairs. If
the problem persists, contact your OMRON representative for details on returning the product.
Timing Status Meaning Countermeasures Page
Turning ON the
power for the
first time
Temperature unit
(°C/°F) is flashing.
ST (self-tuning) is in
progress (default
setting: ON).
This is not a product fault. The temperature
unit (°C/°F) flashes while ST (self-tuning) is
being performed
44
Temperature error is
large.
Input error (S.Err dis-
play)
Input type mismatch Check the sensor type and reset the input
type correctly.
34
Thermometer is not
instal
led properly.
Check the thermometer installation location
and polarity and install correctly.
21
Communications are
not possible.
Non-recommended
adapter is being
used.
Make sure that the connected device is not
faulty.
Section 1 of
Communi-
cations
Manual
Current Value Exceeds
ffff
Heater Burnout
HS Alarm
lcr1
ct1
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