All user interfaces are connected to or from PCB 3R, see the figure below.
Figure 9.1
3R PCB Layout
9.1
Dry Contacts
Eight, normally open, dry contact terminals are provided. Maximum
16A/250VAC or 16A/30VDC.
rating is
Definitions:
•
•
•
INVON – Short whenever inverter is on, open when inverter is off.
OVL – Short whenever ELI is overloaded.
FAULT – Short when ELI encounters a fault condition such as high DC
shutdown, short circuit, fuse/overheat, overload shutdown, emergency stop,
inverter abnormal, and bypass on shutdown. The contact is latched until it is
manually reset (off switch) or the fault has been cleared for 30 seconds.
SS – Short when the inverter is supplying output power, open when reserve is
supplying output power (The two output will never conduct simultaneously).
BYPASS – Short when the maintenance bypass breaker is closed, open
when the breaker is opened.
BACK-UP – Short when the ELI system is in back-up mode (batteries
supplying DC Bus).
BATL – Short when low battery condition occurs and the batteries are about
to be exhausted.
•
•
•
•
36
9 INTERFACE CONNECTIONS
M4102 Ty-Borealis 8-48KW Operators Manual v1.0 2013-08-14
