Using the analogue interface, the unit can be controlled via an analogue (0/4-20 mA or
0-10V) signal. An analogue (0/4-20 mA or 0-10V) output signal is also available. The
schematic above describes the structure of the analogue input and output. Via the filter
constant in the menu point analogue input it is possible to smooth a noisy input signal.
Below is an example using the analogue input to provide a set-point, and the analogue
output gives the process temperature. The current / temperature configuration is also
shown.
E.g. required operating temperature range is 0°C to 100°C. 0°C should correspond to
4mA. 100°C to 20mA. The 4…20mA (I / O) is available on the analogue interface
connector. An alarm should be given when the cable breaks. The unit should be
switched off if there is an analogue error.
ANALOGUE-INTERFACE:
Config. input
Config. output
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ANALOGUE OUTPUT:
AIF-Output - range
Cfg. input range
Adjustment
Reset AIF output
Show table values
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SOURCE ANALOGUE OUT:
No output
Set-point
Internal temp.
Process temp.
Manual preset
Programmer
RS232 / 485
Pump Press. act.
Control Deviation
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