Siemens Synco 200 Basic Documentation page 65

Possibility 1: Changeover
from externally via a
digital signal
Application example
Siemens
Building Technologies
Maximum economy changeover (MECH),
For that purpose, MECH input 1 (MECH 1) must be assigned a digital input.
Function with TYPE = ERC:
When controlled via the heating sequence:
Normal position =>
Operated position =>
When controlled via the cooling sequence:
Normal position =>
Operated position =>
DI
0 %
0 %
SETCOOL
Changeover via an external actuating device (digital input).
Universal Controllers RLU2...
Aggregates
(cont'd)
no inversion of HR output (HREC)
inversion of HR output (HREC)
inversion of HR output (HREC)
no inversion of HR output (HREC)
CTLOOP 1
y1 y2
HREC
DIG
65 / 174
CE1P3101en
29.08.2008