Parameter setting
47
11/04 MN01219002Z-EN
• Star-delta starter
Selecting
S/D starter
enables the motor to be started in a
star/delta circuit. Only one rotational direction is possible.
The inputs are used according to the type of control circuit
devices selected.
On startup, the mains contactor is not switched until 100 ms
after the star contactor has switched in order to allow an
optimum dimensioning of the star contactor. The
changeover time from star to delta operation can be set
between 100 and 99900 ms in 100 ms steps via the
Changeover t parameter in the Motor st. menu.
With the switch-over from star to delta operation the delta
contactor switches only approx. 100 ms after the star
contactor control has been terminated.
In order to protect the system, the DMI implements a
reclosing lockout that lasts for 100 ms after disconnection.
Only after this time interval is a restart possible. Earlier start
attempts are ignored.
Inputs
Switch
I1
ON/OFF
Pushbut
tons
I1
ON
I2
OFF
Outputs
Q0
Mains contactor
Q2
Star contactor
Q3
Delta contactor
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