ABB RES670 Technical Manual page 256

Section 8
Current protection
250
AMBTEMP
I3P
Calculation of final
temperature
ENMULT
SENSFLT
BLOCK
BLKTR
ANSI09000637 V3 EN-US
Figure 78: Functional overview of LFPTTR/LCPTTR (26)
Final Temp > Trip Temp
Calculation of actual
temperature
Actual Temp > Alarm Temp
Actual Temp > Trip Temp
Actual Temp < Recl Temp
Calculation of time to trip
Calculation of time to reset
of lockout
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
PICKUP
TEMP
ALARM
TRIP
LOCKOUT
Lockout logic
TTRIP
TENRECL
ANSI09000637-3-en.vsd
Technical manual