Emerson Digistart IS1x0043B series User Manual

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Digistart IS User Guide 23
Issue: 4 www.controltechniques.com
 In-line installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart IS to continue providing protection and monitoring
functions even when bypassed via an external bypass contactor. The bypass contactor must be connected to the bypass terminals
and controlled by the soft starter's run output (terminals COM2, RLO2).
Figure 4-8 Power connections - in-line installation, externally bypassed (IS3x0255N)
M
3
F1
6/ T3
2/ T1
5/ L3
3/ L2
1/ L1
COM1
RLO1
4/ T2
E
KM1
KM1
T1B
T2B
T3B
KM2
RLO2
COM2
KM2
KM1
Main contactor (optional)
KM2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
Figure 4-9 Power connections - in-line installation, externally bypassed (IS4x0360N to IS561600N)
KM1
Main contactor (optional)
KM2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
NOTE
The bypass terminals on IS3x0255N are T1B, T2B, T3B. The bypass terminals on IS4x0360N to IS561600N are L1B,
L2B, L3B.
The fuses can be installed on the input side if required.
NOTE
Main contactor is the default setting for Pr 4A Relay A Action (COM1, RLO1). Output relay COM2, RLO2 is dedicated to
Run output operation and is ideal for managing an external bypass contactor.

Emerson Digistart IS1x0043B series Specifications

General

Brand	Emerson
Model	Digistart IS1x0043B series
Category	Controller
Language	English