Interface connections, Dry contacts, Ovl – short whenever ups is overloaded – OPTI-UPS DS160KD33 User Manual
Page 68
6-1
6.
INTERFACE CONNECTIONS
All interfaces are connected from 3R PCB. See the figure as below.
6.1. Dry Contacts
8 terminals of dry contact are provided. These terminals are normal open, when
event happens the terminal will conduct. Maximum contact rating is
16A/250VAC(16A/30VDC). They are:
INVON – Short whenever inverter is on, open when inverter is off.
OVL – Short whenever UPS is overloaded.