ABB RED650 - Page 213

Name Values (Range) Unit Step Default Description
Tau 1 - 1000 Min 1 45 Time constant of the line in minutes.
AlarmTemp 0 - 200 Deg C 1 80 Temperature level for start (alarm)
TripTemp 0 - 300 Deg C 1 90 Temperature level for trip
ReclTemp 0 - 300 Deg C 1 75 Temperature for reset of lockout after trip
tPulse 0.05 - 0.30 s 0.01 0.10 Operate pulse length. Minimum one
execution cycle
AmbiSens Off
On
- - Off External temperature sensor available
DefaultAmbTemp -50 - 100 Deg C 1 20 Ambient temperature used when
AmbiSens is set to Off.
DefaultTemp -50 - 300 Deg C 1 50 Temperature raise above ambient
temperature at startup
Table 95: LCPTTR Non group settings (basic)
Name Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base
Value groups
PID-3909-SETTINGS v8
Table 96: LFPTTR Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
TRef 0 - 600 Deg F 1 160 End temperature rise above ambient of
the line when loaded with IRef
IRef 0 - 400 %IB 1 100 The load current (in % of IBase) leading
to TRef temperature
IMult 1 - 5 - 1 1 Current multiplier when function is used
for two or more lines
Tau 1 - 1000 Min 1 45 Time constant of the line in minutes.
AlarmTemp 0 - 400 Deg F 1 175 Temperature level for start (alarm)
TripTemp 0 - 600 Deg F 1 195 Temperature level for trip
ReclTemp 0 - 600 Deg F 1 170 Temperature for reset of lockout after trip
tPulse 0.05 - 0.30 s 0.01 0.10 Operate pulse length. Minimum one
execution cycle
AmbiSens Off
On
- - Off External temperature sensor available
DefaultAmbTemp -50 - 250 Deg F 1 60 Ambient temperature used when
AmbiSens is set to Off.
DefaultTemp -50 - 600 Deg F 1 100 Temperature raise above ambient
temperature at startup
1MRK 505 394-UEN A Section 8
Current protection
Line differential protection RED650 2.2 IEC 207
Technical manual