Changing The Operating Modes; Switchover Via Binary Input - Samson 5757-7 Mounting And Operating Instructions

Functions
Note: We recommend not to select a value that is too low for parameter P22. In particular,
in cases where cooling loads, such as drafts or open windows, affect the control process,
short cycles usually have a negative effect. The heating is directly switched off after the cool-
ing stops.
Note: The set points for room temperature entered in TROVIS-VIEW can be reduced or
raised by 5 K at the room panel (F05 - 1).
Functions
F01 – Control mode
F02 – Selecting the reference variable
F05 – Potentiometer input
Parameters
P01 – Flow temperature set point
P19 – Room temperature set point at rated operation
P20 – Room temperature set point at reduced operation
P21 – Room temperature boost for switch-off
P22 – Time interval flash adaptation
P23 – Pump lag time
6.3

Changing the operating modes

6.3.1 Switchover via binary input

The controller with electric actuator can be configured to allow one of two active binary in-
puts to determine which operating mode is used. Depending on the configuration, the follow-
ing applies:
Binary input BI1:
22
EB 5757-7 EN
F08 - 0 Open binary input BI1 – Rated operation
Closed binary input BI1 – OFF/Frost protection
F08 - 1 Open binary input BI1 – Rated operation
Closed binary input BI1 – Reduced operation
WE Configuration
1 F01 - 1
0 F02 - 1
0 F05 - 1
WE Range of values
70 °C 0 to 150 °C
20 °C 10 to 40 °C
15 °C 10 to 40 °C
2 K 1 to 6 K
10 min 0 to 100 min
5 min 1 to 999 min