If the rotary iron is not going to be used for a short time, it can be set to a mode to protect your laundry and save energy. All PM 12 irons: When the pause function is selected, the trough disengages and the roller stops. The heater remains active initially; the temperature is reduced after 5 minutes. M 500/600/800 / D 500/600/800 irons: When the STOP function is selected, the trough disengages, the roller stops, and the temperature is reduced.