Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 345)

Publication 900-UM007D-EN-E - January 2011
Troubleshooting & Error Indication 6-5
Heater Burnout Alarm (HBA)
Heater Short Alarm (HSA)
Heater Overcurrent
Meaning
When a Heater Burnout (HBA), a Heater Short Alarm (HSA) or Heater
Overcurrent occurs, the No. 1 display in the applicable function group flashes.
Action
When either HBA, HSA, or Heater Overcurrent is detected, the HA indicator
lights and the No. 1 display flashes for the applicable Heater Current 1 Value
Monitor, Heater Current 2 Value Monitor, Leakage Current 1 Monitor, or
Leakage Current 1 Monitor parameters in the Operation function group and
Adjustment function group. Control continues, allowing normal operation if
possible.
Troubleshooting Checking Problems
If the Temperature Controller is not operating normally, check the following
points before requesting repairs. If the problem persists, contact your Rockwell
Automation representative for details on returning the product.
Table 6.A
ct1
ct2
lcr1
lcr2
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
3-33
Temperature error is
large.
Input error
(S.Err display) Input Type mismatch Check the sensor type and reset the Input
Type correctly. 3-12
Thermometer is not
installed properly. Check the thermometer installation location
and polarity and install correctly. 2-17
Communications are
not possible. Non-recommended
adapter is being used. Make sure that the connected device is not
faulty. Section 1 of
Communications
User’s Manual