80-4280-10, Rev. 4
59
Demand, Torque and Temperature Measurement Messages
Message
Description
"Process applied to the non-
primary variable is outside the
operating limits of the field device."
This is a standard HART-defined message that appears
whenever the Demand signal or Temperature are outside
their design or calibrated ranges. This message should be
accompanied by a Beck-specific message with more detail.
"The Demand Signal is outside of
the intended limits (see Demand
Setup menu 3C)."
This Beck-specific message indicates the Demand signal is
invalid.
"Demand out of accurate
measurement range."
This is a Beck-specific message that the Demand signal is
not only out of the calibrated range, but also out of the design
range of the actuator. The lower and upper limits are 0.1 V
dc and 5.5 V dc, respectively. Note that current input DCM-2
boards utilize a 250 Ohm input resistor to convert the current
signal to voltage.
“Demand Signal is out of limit.”
This Beck-specific message indicates the Demand signal is
too high to measure accurately. The upper limit is 5.5 V dc.
Note that current input DCM-2 boards utilize a 250 Ohm input
resistor to convert the current signal to voltage.
“Demand sensing error.”
This is a Beck-specific message. The Demand sensing
circuitry does not appear to be functioning properly.
“The Torque/Thrust is greater
than the output rating.”
This Beck-specific message defines an output shaft torque
overload problem.
“Motor power has been removed
due to excessive output torque.”
This Beck-specific message indicates the DCM-2 has removed
power from the motor due to excessive output shaft torque
load. The Handswitch must be in AUTO mode for this alarm
to be accurate.
“Torque/Thrust out of accurate
measurement range.”
This is a Beck-specific message. The DCM-2 is not able to
read a valid signal from the Torque sensor. Check the torque
sensing cable.
“Torque/Thrust sensing error.”
This is a Beck-specific message. The DCM-2 circuitry for
measuring the Torque signal does not appear to be functioning
properly. Check the torque sensing cable.
“The temperature is outside of
-40°F to 185°F.”
This is a Beck-specific message indicating that the temperature
at the DCM-2 is outside of the acceptable range.
“Temperature out of accurate
measurement range.”
This is a Beck-specific message. The DCM-2 ambient
temperature reading is extreme and cannot be accurately
measured.
“Temperature A/D Fail.”
This is a Beck-specific message. The DCM-2 circuitry for
measuring the ambient temperature does not appear to be
functioning properly.
“The Feedback Signal is enabled
but the loop is open.”
This is a Beck-specific message indicating that the Feedback
sourcing circuit is unable to create the proper signal current.
This message could result from the signal not being wired to
an external load, or a wiring failure has occurred at some point
between the actuator and the monitoring device.
