FlexPower DC Power System Installation Manual
10 11
Specifications
Symptom Possible Problem Information / Possible Solution
No DC2 Output
DC2 LED Extinguished
Blown DC2 Fuse • Check fuse
• Verify the integrity of the output wiring and powered devices before replac-
ing any ruptured fuses. Replace fuses only with the same type and rating
Output disabled due to FAI • If the DC2 fuse is in the DC2+ NC fuseholder, the DC2 output will be dis-
abled upon receipt of an FAI input, causing the DC2 LED to extinguish
• If the DC2 fuse is in the DC2+ NO fuseholder, the DC2 output will be dis-
abled and the DC2 LED will be extinguished until receipt of an FAI input
Power Supply Shut Down • Verify DC output voltage, AC power, and backup battery voltage (if used)
• Check output load integrity and current draw
• If the FPO detects ten output faults within one minute, the supply will
shut down, transfer to battery backup (if available), and generate a fault
condition. Cycle AC power to reset the supply after determining the
cause of the output fault condition
REV BAT LED lit Battery connection reversed • Check the polarity of the battery connections at both ends of the battery
harness
• This LED will be accompanied by a blown Battery Fuse
AC ON LED Extinguished Missing or extremely
low AC Input
• Verify that the AC input voltage is 120V or 230V (±15%) with a meter
Blown AC Fuse • The FPO power supply’s AC input fuse is non-replaceable, as rupture of
this fuse indicates a major malfunction within the FPO supply. Contact Life-
Safety Power
Missing Battery
Not Detected
Improper setting of
BAT DETECT Jumper
• The BAT DETECT jumper must be ON to detect a missing battery
Earth Ground Fault Not
Detected
Improper Setting of EARTH
GND DETECT jumper
• The EARTH GND DETECT jumper must be ON to detect an earth ground
fault
Another device in the system
has earth ground detection
enabled
• Only one device in the system can have earth ground fault detection en-
abled or conflicts will occur
2.2 Maintenance Instructions
The following are the maintenance instructions for the FPO
Series power supply system
• Disconnect AC power prior to servicing
• Verify that there are no fault conditions displayed on any of
the yellow fault LEDs as indicated in this instruction manual
• Verify the integrity of all fuses and replace as necessary
using the fuse ratings supplied in the Specifications
section of this manual
• The battery set (if used) should be checked and replaced
if found to be defective or if more than 4 years old (or as
required by local code)
• Verify that all output voltages are within range as specified
in the Specifications section of this document
2.1 Troubleshooting Table (continued)
Section 2 – Troubleshooting and Maintenance
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