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Figure 73. DC power testing points (red arrow)
Lastly, if applicable, measure the DC cable ends or verify TD100 power.
Step 4 (Optional)
If installed once the system is functioning a Battery Operational Test may be conducted.
Be sure batteries have had time to charge to full capacity before continuing. Typically, 24
- 48 hours are needed, note the TD2 PSU's maximum charge current is 0.3 A.
First conduct an AC Power Loss Test. Note the time. Turn off (Shut) AC branch circuit
power. The LPS5's green AC power LED should turn off. If battery power is functional
the LPS5 red DC power LED and DP4 power LED should remain illuminated. Zero
system down time is required. The AC fail relay must change states.
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Troubleshooting
