ABB PST Series - 10:28 Phase imbalance protection, type of operation

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This parameter makes it possible to select between three
different actions of the softstarter when the protection is
activated. It is active only if the phase imbalance
protection is selected.
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This is a current protection with a fixed level of 8 x Ie
during 200 ms. The protection is activated if the current
exceeds this level and time.
Stop–M The motor stops and a manual reset is
required before restart.
Stop–A The motor stops and an automatic reset is
performed when the fault disappears.
Ind The motor continues to run but a fault indi-
cation is given.
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Ph Imb Op Stop–M Stop–M, Stop–A,
Ind
High current pro-
tection
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High I No Yes, No High current pro-
tection