West Control Solutions TB 45 Temperature Limiter - Manual (Page 28)

6.6 Analog output configuration
6.6.1 Analog output (optional)
An analog output is available as a display output.
The two output signals (current and voltage) are available simultaneously. Adjust ConF / Out.3 / O.tYP to se-
lect the output type which should be calibrated.
ConF / Out.3: O.tYP = 1 Out.3 0...20mA continuous
= 2 Out.3 4...20mA continuous
= 3 Out.3 0...10V continuous
= 4 Out.3 2...10V continuous
Parameter O.Src defines the signal source of the output value.
Example:
O.Src = 3 signal source for Out.3 is
the process value
Scaling of the output range is done via parameters Out.0 and Out.1. The values are specified in units of the physi-
cal quantity.
Out.0 = -1999...9999 scaling Out.3
for 0/4mA or 0/2V
Out.1 = -1999...9999 scaling Out.3
for 20mA or 10V
Example: output of the full input range of thermocouple type J (-100 … 1200 °C)
Out.0 = -100
Out.1 = 1200
Example: output of a limited input range, e.g. 60.5 … 63.7 °C)
Out.0 = 60.5
Out.1 = 63.7
+
Please, note: the smaller the span, the higher the effect of input variations and resolution.
g
Using current and voltage output in parallel is possible only in galvanically isolated circuits.
g
Configuration O.tYP = 2 (4 … 20mA) or 4 (2...10V) means only allocation of the reference value (4 mA or 2V)
for scaling of output configuration Out.0. Therefore, output of smaller values is also possible rather than
output limiting by reference value 4mA / 2V.
g
Configuration O.tYP = 0/1 (0/4...20mA) or 2/3 (0/2...10V) determines, which output should be used as a
calibrated reference output.
Functions
28 Analog output configuration TB 45
phys.
size
mA / V phys. size
Out.1
Out.0
0/4mA
0/2V
20mA
10V