134 EB 5573-1 EN
Appendix
F Function WE System
Comments
Function block parameters: value range (default setting)
18 External
demand
0
All*
CO1 > F18 - 1: External demand 0 to 10V
The standardized signal output (terminals 11/12) is not avail-
able anymore as a control output. The maximum ow set point
(with boost, if applicable) is demanded as a 0 to 10V signal at
the standardized signal output.
Function block parameters:
Lower transmission range: 0.0 to 130.0°C (0.0°C)
Upper transmission range: 0.0 to 130.0°C (120.0°C)
Boost: 0.0 to 30.0°C (0.0°C)
20 Demand for
external heat
0
All
CO1 > F20 - 1:
External demand for heat due to insufcient heat
supply
21 Speed
reduction of
charging pump
based on
charging
progress
0
16.x
CO1 > F21 - 1: Activation of speed reduction
Function block parameters:
Start speed reduction: 5 to 90°C (40°C)
Stop speed reduction 5 to 90°C (50°C)
Min. speed signal: 0 to 10V (2V)
F Function block number, WE Default setting, Anl System code number
CO2: RK2 · Heating circuit 2 (systems Anl 3.x, 4.x and 10.0, 16x)*
F Function WE System
Comments
Function block parameters: value range (default setting)
01 Room sensor 0
All*
CO2 > F01 - 1: Room sensor RF2, temperature reading and
FG1 input for Type5257-5 Room Panel active
03 Return ow
sensor
0
10.x, 16.x
CO2 > F03 - 1:
Return ow sensor RüF2; limitation function ac-
tive
Function block parameters:
KP (limiting factor): 0.1 to 10.0 (1.0)
1
3.0, 4.x
04 Cooling control 0
All*
CO2 > F04 - 1: Cooling control, only with CO2 > F11 - 1
The cooling control function causes a reversal of the operating
direction and a minimum limitation of the return ow tempera-
ture in RK1.
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