Device functions
Page 53
UPT-6011
Version 5
If the controller needs to be replaced, you must load the old parameter data into the new controller
using a suitable network configuration tool and then run the "Save" service.
The parameter object is also reset to the default values if a type 1 reset is triggered on the identity
object (class 1).
8.7.1
Temperature range and alloy
This parameter determines both the temperature range and the heating element alloy. You can overwrite the set-
ting of the rotary coding switch (
section 7.2.2 "Configuration of the rotary coding switch for the temperature
range and alloy" on page 18) by changing the default value (10).
You must always execute the AUTOCAL function after changing the "Temperature range / alloy", "Temperature
range", or "Temperature coefficient" parameter.
8.7.2
TCR Calculator
This functionality is first available as from firmware version 310.
The TCR Calculator can be used to determine the temperature coefficient (TCR) of the heatsealing element used.
The real temperature coefficient of the heatsealing element often differs from the standard value. The material
composition and processing influence the properties of the heatsealing element. This leads to the fact that the tem-
perature display of the controller differs from the real temperature of the heatsealing element. The usage of the
TCR-Calculator allows an easy correction of the TCR value and thus a better matching of the temperature display
of the controller and the real temperature of the heatsealing element.
To calculate the TCR value, the temperature at the heatsealing element is measured in control mode (ST bit = 1)
using an external temperature sensor (e.g. a thermocouple). The measured temperature is transferred to the tem-
perature controller in parameter instance 80. The calculated temperature coefficient can be read out from param-
eter instance 81. The temperature coefficient is only calculated in control mode (ST bit = 1). Reading back the cal-
culated TCR value must be done during active control operation, i.e. during an active heating impulse, as the
internal measured value of the current heatsealing element temperature is used for the calculation.
Errors in the calculation of the temperature coefficient are reported with the value 0 (calculated temperature coef-
ficient too low or no active control operation) or 65535 (calculated temperature coefficient too high).
To use the calculated TCR value, it must be set for the corresponding channel as temperature coefficient in
parameter instance 10, 20, 23, 36, 29, 32, 35 or 38 (temperature coefficient). In addition, the value 11 (variable)
must be used in parameter instance 1 (alloy / temperature range).
Value
Temperature range
Alloy
0
300 °C
TCR = 1700 ppm/K,
adapted to the CIRUS heating elements
4
500 °C
TCR = 1700 ppm/K,
adapted to the CIRUS heating elements
9
PC setting (visualization software)
PC setting (visualization software)
10
Rotary coding switch setting
Rotary coding switch setting
11
Variable: Parameter instance 11 is used
Variable: Parameter instance 10 as well as the
channel-specific temperature coefficients at
instances 20, 23, 36, 29, 32, 35 and 38 are
used
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