AW: [TRNSYS-users] pump controlling

Timo Sengewald timo.sengewald at bls-energieplan.de
Thu Sep 9 04:41:42 PDT 2004


Florian,

my solution for cases like that has always been to combine the two
control signals to an effective control signal for the second pump using
an equation component:

- do not connect the control signal of controller 2 to pump 2 (which is
not allowed to run despite the signal of its controller)
- pump 1 schould be connected to its controller
- set up an equation like y2 = eql(y1;0) * y2'
where y2 is the effective control signal for pump 2, y1 the control
signal for pump 1 and y2' the control signal of controller 2.

If someone out there has got a much better idea i would be interested
too.

Good luck!


Timo

________________________________________________
Timo Sengewald

BLS Energieplan GmbH
Elsenstraße 106
D-12435 Berlin
Tel.: +49 30 53 32 81-0
Fax: +49 30 53 32 81-40


www.bls-energieplan.de



-----Ursprüngliche Nachricht-----
Von: trnsys-users-admin at engr.wisc.edu
[mailto:trnsys-users-admin at engr.wisc.edu] Im Auftrag von Florian Hafner
Gesendet: Donnerstag, 9. September 2004 11:52
An: Trnsys Users
Betreff: [TRNSYS-users] pump controlling


dear users

i have 2 pumps , each is controlled by a delta T  controller .  the 
second pump should not running ,if the first one runs whatever the delta

T controller gives out.
??????
how to manage
thanks flo


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