Communication System Manual
3WN6 Circuit-Breakers
Copyright Siemens AG 1998. All rights reserved.
Version1.0 (05/98)
44
T-Nr. RELEASE
N and P
H and J/K
D and E/F
Message address
1:3
Warning signals
30)
743, 1, 0
The input of octet strings OS1 to OS4 is not required for the message address in this case.
OS1:7
OS1:6
OS1:5
Signal: Overload present (I>I
r
)
OS1:4
X
X
X
OS1:3
OS1:2
OS1:1
OS1:0
OS2:7
OS2:6
OS2:5
OS2:4
Load shedding
31)
OS2:3
X
X
X
Release overtemperature
OS2:2
X
X
X
Current phase imbalance
(fixed value 50 %)
OS2:1
X
X
X
OS2:0
OS3:7
OS3:6
OS3:5
OS3:4
OS3:3
OS3:2
OS3:1
OS3:0
OS4:7
OS4:6
OS4:5
OS4:4
OS4:3
OS4:2
"g" signal for earth fault (earth
fault alarm)
OS4:1
X
X
X
OS 4:1 for releases E/F, J/K and P only
OS4:0
30)
If one bit of the warning signals is set, this activates a group warning signal (in the cyclic output data).
31)
The operating value for load shedding can be parameterized in message 1:107.