Alarm Function Af - Siemens RWF55.5 User Manual

Limit value AL relative to
setpoint (w)
Fixed limit value AL
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8.6 Alarm function AF

ConF  AF 
The alarm function can be used to monitor the analog inputs. If the limit value is
exceeded, multifunctional relay K6 is activated (depending on the switching
characteristic). The alarm function can have different switching functions (lk1 to lk8)
and can be set to a deviation from the active setpoint or to a fixed limit value.
In the case of alarm functions lk1 to lk6, the actual value InP1 is monitored in relation
to a limit value AL that has to be set (with the absolute value dependent on the setpoint
(w)).
lk1
1
AL
HYSt
0
w
lk3
1
AL
HYSt
0
w
lk5
1
AL
HYSt
0
w
Figure 28: Alarm function lk1...lk6
In the case of alarm functions lk7 and lk8, all analog inputs InP1...InP3 can be
monitored in relation to a fixed limit value AL that has to be set.
lk7
1
HYSt
x
0
AL
Figure 29: Alarm function lk7 and lk8
User Manual RWF55...
8 Configuration ConF
lk2
1
AL
HYSt
x
0
lk4
1
AL
HYSt
x
0
lk6
1
AL
x
0
w
lk8
1
0
AL
x
w
x
w
HYSt
x
HYSt
x
CC1U7867en
05.11.2013