DSPM Defender 3 - Section 1.4. Output Loads

Title: Micro
Doc No.: 018-1000-02
Description: Emergency Lighting Inverter User’s Manual Date: 07/26/2016
Rev: NR
1.877.DSPM.POWERPhone : 1.877.377.6769-
909.930.3335Fax:
www.dspmanufacturing.com
Website:
techsupport@dspmanufacturing.com
E-Mail:
1.3.3. Response To Input Power Failure For An Online System
When the input power fails, the charger is turned off and the battery bank becomes a DC supply source to the inverter
circuit, maintaining an uninterrupted AC supply to the protected load. When the facility power returns, stabilizes and
is in phase with the backup power, the system controller closes the input contactor and the system returns to the
Online mode. If the battery voltage drops below 26% of its nominal value and the facility power remains off, then the
system will assume a FAILURE mode.
Response To Input Power Failure For A Standby System
When the input power fails, the charger is turned off and the battery bank is transferred, becomes a DC supply
source used to drive the inverter circuit, maintaining a uninterrupted AC supply to the protected load. When the facil-
ity power returns, stabilizes and is in phase with the backup power, the system controller closes the input contactor
and the system returns to the Standby mode. If the battery voltage drops below 26% of its nominal value and the
facility power remains off, then the system will assume a FAILURE mode.
1.3.4. UPS Failure
The System controller will issue a FAILURE message on the LCD screen if any of the following conditions happen:
• Internal failure
• System overheats
• Battery bank under voltage
During a FAILURE, the system stops its backup operation, inverter SCRs are switched OFF, and bypass SCRs are
switched ON. A summary alarm signal is sent to the hardwired interface. The system remains in this mode until
power is cycled or system has been repaired when needed.
1.3.5. UPS Problem
The System controller will issue a UPS PROBLEM message on the LCD screen if any of the following conditions
occur:
• 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 Three Phase Inverter is designed to power any uorescent or incandescent lighting. There are, however, certain
types of loads that exhibit an excessive inrush current when rst turned on or at other times during operation.
The capacity of the Three Phase Inverter 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 Three Phase Inverter.
14
Title: Three Phase 208 or 208Y/120Vac
Doc No.: 018-6000-00
Description: Emergency Lighting Inverter User’s Manual
Rev: NR
Date: 08/12/2022
Phone :
Website:
E-Mail:
Fax:
1.877.DSPM.POWER-1.877.377.6769
1.877.DSPM.POWER-1.877.377.6769
www.dspmanufacturing.com
techsupport@dspmanufacturing.com