User`s manual

13
Eternalight 1 Online Emergency Lighting Inverter User’s Manual
#018-0135-01 Rev C
• Input power failure
• Output overload
During a PROBLEM mode, inverter IGBTs remain on and an alarm signal may be sent to the signal
interface. The system will reset itself as soon as the problems disappears.
1.4. OUTPUT LOADS
The Eternalight 1 is designed to power any lighting system. There are, however, certain types of
loads that exhibit an excessive inrush current when first turned on or at other times during op-
eration.
The capacity of the Eternalight 1 may need to be greater than what would be estimated based on the
system label requirements of loads previously discussed. Contact the factory directly if you have any
questions about powering unusual loads from your Eternalight 1.
1.5. OPTIONS (See Unit Options for details)
The following options are available with the Eternalight 1:
1. ECM120 and ECM277—Environmental Control Module
2. NOF—Normally OFF Circuit 120Vac or 277Vac
3. NOH—Normally OFF “Hold On” Circuit 120Vac or 277Vac
4. OCB—Output Circuit Breaker/(s) 120Vac or 277Vac
5. EPO—Emergency Power Off
6. EPO—Emergency Power Off
7. RSSP—Remote Indicator Panel
8. SNMP—SNMP Card
9. FAX—Fax Modem
10. MB—Modbus Interface
11. FC—Form C Contacts
12. STU3—Onsite Startup
13. EW—Extended Warranty
1.6. OVERVIEW.
The UPS provides two power paths between the utility source and the critical load. Figure 1 shows the path
for normal operation, with the load powered from the inverter. Figure 2 shows the path for bypass operation,
with the load supplied through the static bypass line.
The Input circuit breaker (MCCB) for protection of the UPS and cables are field supplied and field installed.
Figure 1 Single line Drawing - Normal operation
1.6.A. Normal Operation
During normal operation, the path through the inverter is used to power the load. Referring to Fig-
ure1: two rectifiers convert Input AC power to DC. DC power is utilized to charge the UPS battery
system