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Troubleshooting
LED Display Status
Problem
Suggestion
Normal mode (Charging)
• All LED display status are OFF.
• DC-UPS module does not operate.
1) Please check wiring and PSU output.
2) Replace DC-UPS module.
Normal mode (Charging)
• Green LED display status is flashing
quickly.
• Red LED display status is On
(not flashing).
1) The input voltage is low (18-21 Vdc).
2) Re-check input voltage and increase to > 21 Vdc.
Normal mode (Charging)
• Orange LED display status is On
(not flashing).
1) Check the Replace BAT relay contact. If it
is “Close”,
this either means:
- Battery connection is open or there is no battery
- Battery reverse polarity
- Battery spoil
2) Check battery polarity connection at
“BAT. IN”
terminal and make corrections.
3) Check input polarity connection at
“DC IN”
terminal
and make corrections.
4) Re-check battery voltage. If the battery still fails to
function and will not charge, replace with a new
battery (21-27.6 Vdc).
14
Diagnosis
Battery Status
Error
Diagnosis
Battery Status
Error
Diagnosis
Battery Status
Error
