ABB REL 551-C1*2.5 - Page 87

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