7.3.4 Signals
TRPTTR is not provided with external temperature sensor in first
release of 650 series. The only input that influences the temperature
measurement is the binary input COOLING.
Table 40: TRPTTR (49) Input signals
Name Type Default Description
I3P GROUP
SIGNAL
- Three phase group signal for current input
BLOCK BOOLEAN 0 Block of function
COOLING BOOLEAN 0 Cooling input changes IBase setting and time constant
RESET BOOLEAN 0 Reset of function
Table 41: TRPTTR (49) Output signals
Name Type Description
TRIP BOOLEAN Trip Signal
PICKUP BOOLEAN Pickup signal
ALARM1 BOOLEAN First level alarm signal
ALARM2 BOOLEAN Second level alarm signal
LOCKOUT BOOLEAN Lockout signal
WARNING BOOLEAN Trip within set warning time
7.3.5 Settings
Table 42: TRPTTR (49) Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
IRef 10.0 - 1000.0 %IB 1.0 100.0 Reference current in % of IBase
IBase1 30.0 - 250.0 %IB 1.0 100.0 Base current IBase1 without cooling input in
% of IBase
IBase2 30.0 - 250.0 %IB 1.0 100.0 Base current IBase2 with cooling input in %
of IBase
Tau1 1.0 - 500.0 Min 1.0 60.0 Time constant without cooling input
Tau2 1.0 - 500.0 Min 1.0 60.0 Time constant with cooling input
IHighTau1 30.0 - 250.0 %IB1 1.0 100.0 Current setting for rescaling TC1 by TC1-
IHIGH
Table continues on next page
Section 7 1MRK 505 277-UUS C
Current protection
102
Technical Manual
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