5 Electrical Connection User Manual
5.14 Dry Contact Connection
5.14.1 Dry Contact Function
The configuration circuit board is provided with fault output dry contact and emergency stop
dry contact, as shown in the figure below.
DO terminal (fault output dry contact)
The relay can be set to output fault alarms, and user can configure it to be a normally open
contact (COM
&
NO) or a normally closed contact (COM
&
NC).
The relay is initially at the NC contact, and it will trip to another contact when a fault occurs.
When alarm occurs, signal status change will not be triggered.
Use LED indicators or other equipment to indicate whether the inverter is in the faulty state.
The following Figures show the typical applications of normally open contact and normally
closed contact:
76