SX25 Series Process Controller - Spirax Sarco

6.2 Example of temperature
control for SX25-VMD
The SX25-VMD controller is
'ILMN'.
I L M N
monitoring system temperature
8 0 0 2
with a RTD Pt100, and provides a
Valve Motor Drive control signal to
Enter the last digit for code 'O'
the electric control valve.
The configuration code is now
entered,and the
display will show:
Configuration Code and
parameters:
• Temperature sensor with an
effective range from 0°C to
100°C.
• Control Valve with 20mm stroke
and Valve Motor Drive electric
actuator, speed 0.5mm/s .
• Two Event alarms are required.
Event Y2 set for active low
process alarm set at 35°C with
the blocking function. Event Y3
set for an active high deviation
alarm set at 10°C.
• The process temperature
required is 60°C is the control
temperature.
Configuration code
Using the and keys, enter the first part of the configuration code
Press the enter key
to save the value entered
and to move to the next
parameter.
Use the enter key to
review the data you have
entered or press the
scroll key to exit the
configuration menu.
o C
vn¡t
then press the enter key
then press the enter key
This selects Celsius or Fahrenheit for
the temperature units.
Using the table below enter the following values into the parameters.
Parameter Description Default Value New Value
Unit temperature units °C °C
Code Change Security code 33 33
When the configuration menu is exited, the
display will now show the normal operating
mode, with the process variable at the top
and the set point at the bottom.
For example:
With the controller
configured, the
parameters can
now be entered.
IM-P323-25 CH Issue 3 43
O
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