55
34
Rectifier overtemperature
Overtemperature of rectifier in power module no. N. Temperature of IGBT rectifier is too high to keep it running. This
alarm is triggered by a signal from temperature control device installed in IGBT rectifier. UPS recovers automatically after
overtemperature signal disappears.
In case of overtemperature, check:
1. If ambient temperature is too high.
2. If ventilation is obstructed.
3. If there is a failure in fans.
4. If input voltage is too low.
35
Fan failure
At least one fan fails in power module no. N.
36
Output overload
Output overload in power module no. N. Alarm appears when load exceeds 100% of rated power. Alarm automatically
resets when overload condition disappears.
1. Check which phase is overloaded through load percentage (%) displayed on LCD to confirm that alarm is real.
2. If alarm is real, measure actual output current to confirm if displayed value correct.
Disconnect any non-critical loads. In parallel systems, this alarm will be triggered if load is severely unbalanced.
37
Inverter overload Tout
Overload time limit of inverter in power module no. N has been reached. Overload status of UPS continues and overload
time has run out.
Note:
The most overloaded phase is the one that first indicates that time has run out.
If timer activated, ‘unit overload’ alarm should also be activated, since load is above rated value.
When the time runs out, the inverter switch opens and the load transfers to the bypass.
If load drops below 95% for two minutes, system returns to transferring to inverter mode. Check the load percentage (%)
displayed on the LCD to confirm that the alarm is real. If LCD shows an overload, check actual load and confirm if UPS has
an overload before alarm occurs.
38
Inverter overtemperature
Overtemperature of inverter in power module no. N.
The inverter’s heat sink temperature is too high to keep it running. This alarm is triggered with a signal from the
temperature control device installed in the IGBT inverter. UPS recovers automatically after overtemperature signal
disappears.
In case of overtemperature, check:
1. If ambient temperature is too high.
2. If ventilation is obstructed.
3. If there is a failure in fans.
4. If inverter overload time has run out.
39
UPS inhibition
Prevents system from transferring from bypass to UPS (inverter). Check:
1. If capacity of power module is sufficient for load.
2. If rectifier is ready.
3. If bypass voltage is normal.
40
Manual transfer to bypass
Transfers manually to bypass.
41
Cancellation of manual transfer to
bypass
Cancels the ‘manual transfer to bypass’ command. If UPS has manually transferred to bypass, this command allows you to
transfer to inverter.
42
Battery voltage low
Battery voltage is low. Before the end of the discharge, the ‘low battery voltage’ warning will appear. Afterwards, the
battery will have a discharge capacity of three minutes at full charge.
43
Battery inverted
Battery cables not connected correctly.
44
Inverter protection
Protection of inverter in power module no. N. check:
1. If inverter voltage is abnormal.
2. If inverter voltage is very different to that of other modules. If so, adjust inverter voltage of power module separately.
45
Loss of input neutral
The neutral mains cable has been lost or is not detected. For three-phase UPSs, it is recommended that the user use a three-
phase circuit breaker between the input power supply and the UPS.
46
Bypass fan failure
At least one of the fans of the bypass modules has failed.
47
Manual shutdown
Manual shutdown of power module no. N. The power module turns off the rectifier and inverter and there is no inverter
output.
48
Manual quick charging
Manually forces the charger to operate in quick charging mode.
49
Manual float charging
Manually forces the charger to operate in float charging mode.
50
UPS blocked
The power module of the UPS cannot be shut down manually.
51
Parallel cable error
Error in parallel cable. Check:
1. If one or more parallel cables are disconnected or not connected correctly.
2. If parallel cable is disconnected.
3. If parallel cable is OK.
53
Loss of N+X redundancy
N+X redundancy lost. There are no redundant power modules X in the system.
54
System inhibition due to EOD
The system does not supply power after the batteries are in EOD (end of backup).
55
Battery test failure
Failure in battery test. Check if the status of the UPS is normal and if the battery voltage exceeds 90% of the float voltage.
56
Battery maintenance failure
Check:
1. If status of UPS is normal and there are no alarms.
2. If battery voltage exceeds 90% of float voltage.
3. If load exceeds 25%.
SLC ADAPT
UNINTERRUPTIBLE POWER SUPPLY (UPS)
USER'S MANUAL
Summary of Contents for SLC ADAPT Series
Page 1: ...SLC serie ADAPT 180 300 y 500 kVA UNINTERRUPTIBLE POWER SUPPLY UPS USER S MANUAL...
Page 12: ...12 SALICRU Fig 8 Front view of 10 slot cabinet 500 kVA 300 kVA at 3x208 V with closed doors...
Page 64: ...64 SALICRU...
Page 65: ...65 SLC ADAPT UNINTERRUPTIBLE POWER SUPPLY UPS USER S MANUAL...