ABB REL 551-C1*2.5 Technical Reference Manual page 87

78
Thermal phase overload protection (THOL)
Table 89: Settings for the thermal overload protection THOL (THOL-) function
Parameter Range
Operation Off,
NonComp,
Comp
IBase 10-200
Step: 1
TBase 0-100
Step: 1
tau 1-62
Step: 1
TAlarm 50-150
Step: 1
TTrip 50-150
Step: 1
TdReset 5-30
Step: 1
Table 90: Settings for thermal overload protection (THOL), mA input
Parameter Range
MI11-I_Max -25.00-25.00
Step: 0.01
MI11-I_Min -25.00-25.00
Step: 0.01
MI11-I_MaxValue -1000.00-100
0.00
Step: 0.01
MI11-I_MinValue -1000.00-100
0.00
Step: 0.01
Default Unit Description
Off - Operating mode for THOL function
100 % of I1b Base current
50 ðC Temperature rise at base current
30 min Thermal time constant
80 ðC Alarm level
100 ðC Trip level
10 ðC Trip hystereses
Default Unit Description
20.00 mA Max current of transducer to Input 1
Can only be set from PST
4.00 mA Min current of transducer to Input 1
Can only be set from PST
20.00 ðC Max primary value corr. to I_Max, Input 1
Can only be set from PST
4.00 ðC Min primary value corr. to I_Min, Input 1
Can only be set from PST
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