Emerson Digistart IS1x0043B series User Manual

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22 Digistart IS User Guide
www.controltechniques.com Issue: 4
4.3 Power connections
4.3.1 Motor connection
Digistart IS soft starters can be connected to the motor in-line or inside delta (also called three-wire and six-wire connection). When
connecting in inside delta, enter the motor full load current (FLC) for Pr 1A. The Digistart IS will automatically detect whether the
motor is connected in-line or inside delta and will calculate the correct inside delta current level.
NOTE
For personnel safety, the power terminals on models up to IS1x0105B are protected by snap-off tabs. When using large
cables, it may be necessary to break off these tabs.
Models which are internally bypassed do not require an external bypass contactor.
Internally bypassed models:
IS1x0023B, IS1x0043B, IS1x0053B, IS1x0076B, IS1x0097B, IS1x0105B, IS2x0145B, IS2x0170B, IS2x0200B, IS2x0220B,
IS3x0255B, IS4x0350B, IS4x0425B, IS4x0500B, IS4x0700B, IS4x0820B, IS4x0920B, IS4x1000B
Non-bypassed models:
IS3x0255N, IS4x0360N, IS4x0430N, IS4x0650N, IS4x0790N, IS4x0930N, IS561200N, IS561410N, IS561600N
4.3.2 In-line installation
 In-line installation, internally bypassed
Figure 4-7 Power connections - in-line installation, internally bypassed
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
E
KM1
KM1 F1
M
3
08341.A
KM1
Main contactor (optional)
F1
Semiconductor fuses (optional)
NOTE
Main contactor is the default setting for Pr 4A Relay A Action (COM1, RLO1).

Emerson Digistart IS1x0043B series Specifications

General

Brand	Emerson
Model	Digistart IS1x0043B series
Category	Controller
Language	English