ABB PST Series Installation And Commissioning Manual page 20

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20
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The PST softstarter has several integrated protection and
warning functions. Almost any type of fault can also be
detected and displayed.
All available protections, warnings and fault indications
are listed below.
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• Start ramp
• Stop ramp (soft stop)
• Initial voltage
• Step down voltage
• Current limit
• Kick Start
• Extended start range
• Extended stop range
• Sequence start
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• Motor overload protection
• Locked rotor protection
• Motor underload protection
• High current protection
• Phase imbalance protection
• Phase reversal protection
• SCR overload protection
• PTC input for motor protection
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• Warning high current
• Warning low current
• Warning motor overload
• Warning thyristor overload
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