Application Examples - DOLD SAFEMASTER LG 7927 Mode D'emploi

Application Examples

L1(+)
A1(+) S11 S12 S21
LG5925
A2
N(-)
LG 5925 with LG 7927, cross fault detection, suitable up to SIL2, Performance Level d, Cat. 3
L1(+)
A1(+) S11 S12 S21
LG5925
A2
N(-)
LG 5925 with LG 7927, non cross fault detection, suitable up to SIL2, Performance Level d, Cat. 3
L1(+)
Not-
Aus
A1(+) S11 S12 S21 S22
LG5925
A2
N(-)
LG 5925 with two LG 7927, non cross fault detection, suitable up to SIL2, Performance Level d, Cat. 3
E. DOLD & SÖHNE KG • D-78114 Furtwangen
e-mail: dold-relays@dold.com • internet: http://www.dold.com
S22 S33 S34 13 23 ...
...
K1
...
K2
...
14 24
...
S22 S33 S34 13 23
...
K1
...
K2
...
14 24
...
S33 S34 13 23 A1(+)
...
K1
Querschlusssicher
Nicht Querschlusssicher
...
K2
...
14 24
A1(+)
S11 S21
LG7927
K1t
cross fault detection
not cross fault detection
K2t
A2 Y1 Y2
A1(+) S11 S21
LG7927
K1t
cross fault detection
not cross fault detection
K2t
A2 Y1 Y2
S11 S21 17 27 37 45
LG7927
K1t
K2t
A2 Y1 Y2 18 28 38 46
•
PO Box 1251 • Telephone (+49) 77 23 / 654-0 • Telefax (+49) 77 23 / 654-356
16
17 27 37 45 55
18 28 38 46 56
M10223_a
17 27 37 45 55
18 28 38 46 56
M10226_a
55 A1(+) S11 S21
LG7927
K1t
Querschlusssicher
Nicht Querschlusssicher
K2t
56 A2 Y1 Y2
17 27 37 45 55
18 28 38 46 56
M11300
LG 7927 / 11.03.20 en / 273A