Lamtec ETAMATIC, Руководство пользователя

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9 Appendix
9.10 Connection Examples Regular Firing Rate Input
Connection examples load default
Where current is used as firing-rate default signal instead of a potentiometer:

f.ex. active steam pressure regulator
*
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
circuited. To switch off the internal firing-rate controller, terminal 19 and 21 short circuited.