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No.
Alarm Message
46
BATTERY
BREAKER OFF
47
EXT PARALLEL
UNCOMPATIBLE
48
FRAME OVER
AUTO RECOVER
LIMIT
49
PWR UNIT #n
OVER AUTO
RECOVER LIMIT
50
OUT OF ECO
RANGE
51
FAN MODULE
FAIL
52
DUST FILTER
REPLACEMENT
REQUIRED
53
MAINS INPUT
BREAKER OFF
Possible Cause
Battery circuit breaker is
turned off.
between parallel UPSs are not
compatible.
System's repeated auto
protection frequency is over
limit.
Power unit's repeated auto
protection frequency is over
limit.
Bypass voltage or frequency is
out of ECO mode limit.
1. System fans or module fans
are abnormal.
2. Foreign matter is stuck in
the fans.
1. System date is wrongly set.
clean date is due.
The Input Switch (Q1) is
turned off.
11- 7
11
Solution
1. Check if the battery circuit breaker
is turned off. If yes, turn it on.
2. If the battery circuit breaker is
turned on but the alarm still exists,
contact service personnel.
Contact service personnel.
Contact service personnel.
Contact service personnel.
Check the bypass voltage and
frequency. If abnormal, contact service
personnel.
1. Check if the fans have
abnormalities.If yes, contact
service personnel.
2. If foreign matter is blocking a fan,
remove it. After removing the foreign
matter, double check whether all
fans can run normally. If not, contact
service personnel.
1. Check if the system date is set
correctly.
reset the replacement/ clean date.
1. Check if the Input Switch (Q1) is
turned off. If yes, turn it on.
2. If the Input Switch (Q1) is turned
on but the alarm still exists, contact
service personnel.
Troubleshooting
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