Section 1.4. Output Loads - DSPM Defender Micro Elite Maintenance Manual

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 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 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 Micro Elite is designed to power any lighting system. There are, however, certain types of loads that exhibit an exces-
sive inrush current when first turned on or at other times during operation.
The capacity of the Micro Elite may need to be greater than what would be estimated based on the system label require-
ments of loads previously discussed. Contact the factory directly if you have any ques-tions about powering unusual loads
from your Micro Elite.
Title: Micro Elite Maintenance's Manual
Title: Micro
14
Doc No.: #074-1005-02
Doc No.: 018-1000-02
Description: Emergency Lighting Inverter User's Manual
Description: Emergency Lighting Inverter User's Manual
Rev: NR
Date: 02/26/2022
Rev: NR
Date: 07/26/2016
Phone : 1.877.DSPM.POWER
Phone : 1.877.DSPM.POWER-1.877.377.6769
Fax: 909.930.3335
Fax: 1.877.DSPM.POWER-1.877.377.6769
Website:
www.dspmanufacturing.com
Website: www.dspmanufacturing.com
E-Mail:
techsupport@dspmanufacturing.com
E-Mail: techsupport@dspmanufac-
- 1.877.377.6769