Specifications

23
Soft starter
ATS48 diagram
Run
Run
Local
Running
Fault
In the diagram below, a 116KM4 contactor is placed upstream of the ATS48. It allows the power to the starter
to be cut. The switch allows the contactor to be controlled, either by PLC in Remote mode, or by start and stop
buttons in Local mode.
Local Mode b
The Remote/Local lockable commutator includes a 3rd position, Off, which opens the control to the contactor,
which cuts the power to the terminals of the soft starter.
Be careful, this Off mode cannot be considered to be a padlocking function.
The starter can be controlled by a Run/Stop commutator; the Run command is wired directly to the soft starter.
In this mode, the PLC is no longer in the circuit, which is important in the event of spurious signals and for
maintenance.
Notes b
Indicator lights wired to the PLC allow Run and Fault states to be displayed.
The Remote and Local positions of the lockable commutator are repeated on the PLC.
A short circuit contactor 11KM1 is controlled by output R2 at the end of the start. To congure the I/O of the
regulator the following software is recommended: PowerSuite (for PC) or ATS Display.
ATS48
Remote
Off
Remote
Local
breaker and
contactor
Command part
of the upstream
contactor
3-Application design
Hardware design