Siemens SENTRON VL Series

Data library
8.5 Function classes
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
191
8.5.10 Parameters of the SENTRON circuit breakers (primary protection function)
The table below contains the parameters of the SENTRON circuit breakers (primary
protection function):
Table 8- 10 Parameters of the SENTRON circuit breakers (primary protection function)
Description Data
point
Source
WL
Source
VL
Format Length
(bits)
Scaling Contained in
DS.Byte
Active parameter set 370 ETU ETU Format
(370)
1 — DS129.65
Time lag class (SENTRON VL
LCD ETU40M only)
331 — ETU Format
(331)
8 0 DS129.68
Overload parameter I
R
parameter set A
(PS A)
333 ETU ETU unsigned
int
16 0 DS129.4
Time-lag class t
R
PS A 335 ETU ETU unsigned
int
16 – 1 DS129.8
Short-circuit protection instantaneous I
i
PS A
336 ETU ETU unsigned
int
16 1 /
0 (VL)
DS129.10
Short-circuit protection delayed I
sd
PS A 337 ETU ETU unsigned
int
16 1 /
0 (VL)
DS129.12
Delay time for short-circuit protection t
sd
PS A
338 ETU ETU unsigned
int
16 –3 DS129.14
Overload protection neutral conductor
I
N
PS A (WL)
334 ETU — unsigned
int
16 0 DS129.6
Overload protection neutral conductor I
N
(VL)
365 — ETU unsigned c
har
8 0 DS129.66
Ground-fault protection I
g
PS A 339 ETU ETU unsigned
int
16 0 DS129.16
Delay time for ground-fault protection t
g
PS A
340 ETU ETU unsigned
int
16 – 3 DS129.18
Ground fault alarm I
g2
PS A 341 ETU — unsigned
int
16 0 DS129.20
Delay time for ground fault alarm t
g2
PS A 342 ETU — unsigned
int
16 – 3 DS129.22
I
4
t characteristic for overload protection
PS A
345 ETU — Format
(345)
1 — DS129.26
I
2
t characteristic for delayed short-circuit
protection PS A
343 ETU ETU Format
(343)
1 — DS129.24
I
2
t characteristic for ground-fault
protection PS A
344 ETU ETU Format
(344)
1 — DS129.25
Thermal memory PS A 346 ETU ETU Format
(346)
1 — DS129.27
Phase loss sensitivity PS A 347 ETU — Format
(347)
1 — DS129.28
Cooling time constant PS A 348 ETU — unsigned
int
16 0 DS129.30
Overload parameter I
R
parameter set B (PS B)
349 ETU — unsigned
int
16 0 DS129.32