Operation
4-30
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
Temperature Parameters (contd.)
Fault
Overtemperature =
Setpoint temperature
+ Overtemperature fault delta*
Fault
Undertemperature =
Setpoint temperature
− Undertemperature fault delta*
Overtemperature/undertemperature fault: 10 °C (18 °F)
NOTE: The values for Overtemperature/undertemperature fault are
differential values, not absolute temperatures.
Overtemperature
shutdown =
Setpoint temperature
+ (Overtemperature fault delta + 10 °C)*
Setpoint temperature
+ (Overtemperature fault delta + 20 °F)*
NOTE: The overtemperature shutdown is calculated and therefore can not
be changed.
Example
Setpoint temperature = 170 °C (338 °F),
Overtemperature fault = 60 °C (108 °F)
This results in
Fault Overtemperature at 230 °C (446 °F)
Overtemperature shutdown at 240 °C (466 °F).
During operation the operator increases the setpoint to 190 °C (374 °F);
the value Overtemperature fault delta is left unchanged. Mathematically, an
overtemperature fault indication would then occur at 250 °C (482 °F).
However, shutdown occurs at a fixed value of 245 °C (475 °F).
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