Emerson Leroy Somer DIGISTART D3 User Manual page 23

Safety Rating Mechanical
Information Data Installation

In-line installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart D3 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 4-10 Power connections - in-line installation, externally bypassed (D3-1x-0255-N)
Figure 4-11 Power connections - in-line installation, externally bypassed (D3-1x-0360-N to D3-16-1600-N)
The bypass terminals on D3-1x-0255-N are T1B, T2B, T3B. The bypass terminals on D3-1x-0360-N to D3-16-1600-N
NOTE
are L1B, L2B, L3B.
The fuses can be installed on the input side if required.
Main contactor is the default setting for Pr 4A Relay A Action (COM1, RLO1). Output relay COM2, RLO2 is dedicated
NOTE
to Run output operation and is ideal for managing an external bypass contactor.
Digistart D3 User Guide
Issue: F
Electrical Keypad Quick Start
Installation and Status Commissioning
Operation Programming Diagnostics Application
K1
K2
F1
K1
K2
F1
Technical Maintenance Options
Examples Data
Main contactor
Bypass contactor (external)
Semiconductor fuses (optional)
Main contactor
Bypass contactor (external)
Semiconductor fuses (optional)
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