Siemens RWF40.000A97 User Manual page 41

Function Ik1
Function Ik2
Function Ik3
HVAC Products
Window function: Relay «K6» is active when the measured value lies within a window
about the setpoint (w).
Example: w = 80 °C, AL = 5, HYSt = 2
Measured value rising: Relay «K6» switches on at 76 °C and off at 86 °C.
Measured value falling: Relay «K6» switches on at 84 °C and off at 74 °C.
Output 4
HYSt
7865d10e/0300
Like lk1, but inverted switching function.
Output 4
HYSt
7865d09e/0300
HYSt = switching differential of the window edges
AL = interval from setpoint (half the window-width)
Lower limit signaling
Function: Relay inactive when measured value < (setpoint – limit value).
Example: w = 80 °C, AL = 10, HYSt = 2
Measured value rising: Relay «K6» switches on at 71 °C.
Measured value falling: Relay «K6» switches off at 69 °C.
Output 4
HYSt
7865d04e/0300
CC1B7865en
AL
w
AL
w
AL
Measured value
w
05.12.2002
8. Configuration
Measured value
Measured value
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