Siemens 7SR242 - Figure 3-15 Logic Diagram: Thermal Overload Protection (49)

7SR242 Duobias Description Of Operation
©2010 Siemens Protection Devices Limited Chapter 1 Page 36 of 52
Wn-IL1
49 Alarm
49 Trip
49 Time Constant
49 Overload Setting
c
cap alarm
trip
Wn-IL2
Wn-IL3
cap alarm
trip
cap alarm
trip
1
Inhibit 49
49 Thermal
Overload
Enabled
Disabled
&
49 Capacity Alarm
1
Figure 3-15 Logic Diagram: Thermal Overload Protection (49)