Delta DPS-400K - Page 142

11-6
Ultron DPS Series
No. Alarm Message Possible Cause Solution
37 INPUT
TRANSFORMER
OVER HEAT
1. Fans have abnormalities.
2. Foreign matter is stuck in
the fans.
3. The UPS is overloaded.
Check if fans work abnormally or
foreign matter is blocking a fan. If
yes, contact service personnel. If not,
decrease critical loads.
38 OUTPUT
TRANSFORMER
OVER HEAT
1. Fans have abnormalities.
2. Foreign matter is stuck in
the fans.
3. The UPS is overloaded.
Check if fans work abnormally or
foreign matter is blocking a fan. If
yes, contact service personnel. If not,
please decrease critical loads.
39 LCM
COMMUNICATION
LOSS
1. LCM communication cable
LVQRW¿UPO\FRQQHFWHG
2.
LCM communication cir cuit
is abnormal.
1. Check if the LCM communication
FDEOHLV¿UPO\FRQQHFWHG,IQRW
FRQQHFWLW¿UPO\
2. If the LCM communication cable
LV¿UPO\FRQQHFWHGEXWWKHDODUP
still exists, the LCM communication
circuit might have abnormalities.
Please contact service personnel.
40 PWR UNIT #n NOT
CALIBRATED
EEPROM is damaged. Contact service personnel.
41 SYSTEM
COMMUNICATION
NOK
System’s communication
circuit is abnormal.
Contact service personnel.
42 OUTPUT
OVERLOAD
WARNING
The UPS is overloaded. Decrease critical loads.
43 OUTPUT
OVERLOAD
SHUTDOWN
The UPS is overloaded. Decrease critical loads.
44 PWR UNIT #n
ABNORMAL
CHANGE
Power unit’s control circuit is
abnormal.
Contact service personnel.
45 OUTPUT
BREAKER OFF
The Output Switch (Q4) is
turned off.
1. Check if the Output Switch (Q4) is
turned off. If yes, turn it on.
2.
If the Output Switch (Q4) is turned
on but the alarm still exists, contact
service personnel.