Samson TROVIS 5474 Mounting And Operating Instructions page 85

Automation system 5400, boiler controller
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Fb Function
06 Three-step pulsing/
on-off signal RüL-RK2
07 Modulation feedback
K2
Fb = Function block, WE = Default setting
Function block parameter / Range of values (default setting)
WE
Anl
ON
4 to 7 Co2 -> Fb06 = ON, only with Co2 -> Fb05 = OFF:
Three-step signal
Co2 -> Fb06 = OFF: On-off signal
Function block parameters
Hysteresis / 1 to 30 °C (5°C)
Min. activation time / 0 to 600 s (120 s)
Min. deactivation time / 0 to 600 s (120 s)
ON
7
Co2 -> Fb07 = ON: External feedback; the actually measured
resistance data are given
Function block parameters
Lower value (Start) = 0 % Modulation (0 = 1 kΩ)
Upper value (Stop) = 100 % Modulation (1000 = 2 kΩ)
Co1 -> Fb07 = OFF: Internal feedback
Function block parameters:
K
(proportional gain) / 0.1 to 99.9 (2)
P
T
(reset time) / 0 to 999 s (30 s)
N
T
(derivative-action time) / 0 to 999 s (0 s)
V
T
(Modulation transit time) / 5 to 240 s (30 s)*
Y
* Only when Co2 -> Fb05 = ON is also configured
Appendix
85
EB 5474 EN

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