Siemens 3RS2 Manual page 29

ϑ1 > ϑ2
ϑ1<ϑ2
Figure 5-3
A1/A2
ϑ1
hyst
reset
K1
11C/14NO
Figure 5-4
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002
DEV.MODE = TB/ATEX
MON.MODE = Over
A1/A2
ϑ1
hyst.
ϑ2
hyst.
reset
init init
K1
1
K2
2
A1/A2
ϑ2
hyst.
ϑ1
hyst.
reset
init init
K1
1
K2
2
K1
11C/14NO
11C/12NC
11C 14NO 12NC
12NC 14NO
Temperature limiter time diagram
DEV.MODE = TB/ATEX
MON.MODE = Over
init
1 1
11C/14NO
Temperature limiter safety function time diagram
DEV.MODE = TB/ATEX
MON.MODE = Under
A1/A2
hyst.
ϑ1
hyst.
ϑ2
reset
init init
K1
1 1
K2
2 2
A1/A2
hyst.
ϑ2
hyst.
ϑ1
reset
init init
1
K1
1
2
K2 2
1 K2
2
21C/24NO
21C/22NC
21C 24NO 22NC
11C 22NC 24NO 21C
DEV.MODE = TB/ATEX
MON.MODE = Under
A1/A2
hyst.
ϑ1
reset
init
K1
1
5.4 Special functions
1
2
1
2
1
Digital devices
29