MWI is a time module that connects the pulse transmitter with executive systems.

After turning on the module (supply voltage applied), the S relay contacts are closed for the set time T. If a pulse from the transmitter is given during this time, the relay contacts remain closed and the time T is measured from the beginning. The module responds to the rising edge of the input pulse. Each pulse is extended to the programmed time T. Applying an input pulse longer than time T causes the relay contacts to switch on only for the programmed time T.

The output pulse time is programmed by shorting contacts 8 and 9 to ground according to the table in the catalog card. The diagram below illustrates the working principle of the MWI module.