Specifications
24
A KM1 contactor upstream of the speed regulator allows the power to the regulator to be cut (power and control
diagram page 20). This contactor can be controlled, either by PLC in Remote mode, or by the commutator
(selector switch) 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 via the Run/Stop commutator; the Run command is wired directly to the regulator.
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.
To conî‚¿gure the I/O of the regulator the following software is recommended: PowerSuite (for PC) or Graphic
pocket ( Pocket PC).
Depending on the level of security required (see page 21) a wiring alternative is possible by using the "Power
Removal" input on the regulator. This type of wiring allows the KM1 contactor to be secured upstream of the
regulator.
The photo above illustrates several possible variants of local command.
A "Remote Off Local" commutator associated with independent "Run Stop" buttons.1
A "Remote Off Local" commutator associated with independent "Run Stop" buttons 2
integrated into the regulator display.
Variable speed
drive ATV61
diagram
2
3-Application design
Hardware design
1