2.9 Thermal Overload Protection (ANSI 49)
65
7UM61 Manual
C53000-G1176-C127-3
Figure 2-15 Tripping Characteristics for Overload Protection
Emerg ency Star tup The run-on time to be entered at address 1616 T EMERGENCY must be sufficient to
ensure that after an emergency startup and dropout of binary input “>Emer.Start
O/L” the trip command is blocked until the thermal replica is again below the dropout
threshold.
Ambient or Coolant
Temperature
The specifications given up to now are sufficient for modeling overtemperature. In ad-
dition to this, the machine protection can also process the ambient or coolant temper-
ature. This temperature value must be communicated to the device as digitalized mea-
sured value via field bus (e.g. Profibus DP). Address 1607 TEMP. INPUT serves to
select the temperature input procedure. If there is no coolant temperature detection,
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