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9 Appendix
9.9 Connection Examples Regular Firing Rate Input
Connection examples firing rate default
Where current is used as firing rate default signal instead of a potentiometer:
f.ex. active steam pressure controller
*
Where a three-point step signal from the firing rate controller is used as firing rate input, you
must connect the contacts instead of the potentiometer of the firing rate:
Where a 4-20mA unit shall be supplied with 24V (e.g. a passive steam pressure controller).
*
At steam pressure: actual value to terminal 3, 4 and 5 and terminal 20 and 21 short cir-
cuited. To switch off the internal firing rate controller, terminal 19 and 21 short circuited.
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