Star-delta starters [t-head2-col]

with 3 SmartWire modules for DILM [t-head3]

They control the contactors so the terminals A1-A2 of the contactors do not have to be wired. Also a return signal to the system is fed for each of the SmartWire system modules for DILM.

The terminals X3-X4 are supplied with a bridging connection. For the electrical interlocking of both contactors this bridge is removed and the normally closed auxiliary contact (21-22) of the other contactor is connected as floating contact.
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with SmartWire-I/O module [t-head3]

The SmartWire I/O module actuates contactor Q11 via digital relay output Q1. The further operation is the same as that of a conventional star-delta starter. The inputs of the SmartWire I/O module are used to implement return signals to the SmartWire system.
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With SmartWire module for DILM and ETR4-51 timing relay [t-head3]

The SmartWire module for DILM controls mains contactor Q11 so that terminals A1-A2 do not have to be wired. A return signal is also fed back to the SmartWire system via the SmartWire module for DILM. The PLC and the changeover between star contactor and delta contactor have the same wiring and function as the conventional star-delta starter assembly.
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