ABB REG316 4 Series Operating Instructions Manual page 301

REG 316*4 1MRB520049-Uen / Rev. F
Zone2
First slip between ZC and ZA.
Trip1
Tripping and signalling when the counter for zone 1 reaches
the value n1.
Trip2
Signalling when the counter for zone 2 reaches the value n2.
If Trip2 is to control tripping, the signal Trip2 has to be
assigned to a tripping relay
ABB Switzerland Ltd
(see also Section 5.5.4.2.).
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