Technical information
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Error Codes Table for Temperature/Process Controllers
Document # C0504
The connection and configuration errors for most of the problems encountered
in
using the controller are shown below. A final revision of the connections and
parameters will save time and further losses.
Error
messages are displayed to help the user to identify possible problems.
Error Codes Table
Display
Show
s
Cause
Process or temperature is below the selected sensor range.
Process or temperature is abov e the selected sensor range.
Sensor error. Example:
1. No
connections on the sensor input terminals.
2. Broken
thermocouple (open w i re) or broken RTD-Pt100.
3. RTD-Pt100
badly connected, short-circuited or high cable resistance.
RTD-Pt100 badly connected, short-circuited or high cable resistance.
This kind of error is caused when, for instance, a 4-20mA signal goes
through
the mV or Thermocouples input and can introduce signals of up to
30VDC
at the input point and force the Auto/Zero and Auto/Span to w ork
outside
the limits that guarantee the precision of the controller.
This
error goes away w hen the signal is remov ed from the input and the
connection
is fixed (normally, input signals of up to 30VDC do not damage
the
controller’s hardw
are).
Auto/Zero Problem: This error is caused by a w rong connection and
indicates
that a voltage greater than 30VDC w as input into the sensor and
the
Auto/Zero circuit w as damaged. It is necessary to rev i se the controller.
Auto/Span Problem: This error is caused by a w r ong connection and
indicates
that a v oltage greater than 30VDC w as input into the sensor and
the
Auto/Span circuit w as damaged. It is necessary to revi se the controller.
NOTE: The controllers do not accept AC-Voltage or AC-Current in the sensor input.
This
type of signal can damage the controller.