Hi sir i hope you are well
Heidelberg designed the IWM earth -leakage monitor module
his purpose is control earth leakage ocurring on in rectifier module, flat cables
cables for push buttons,limit switch and motors in the printing press working
= DC 120vdc.
In normal operation Green LED must be ON
if some earth leakage occur Red LED lit after 20seconds.
Normalley on LT must be pressed in the module IWM, AND the Red LED Goes out, when
the malfunction is taken care of.
back to me any question or doubt