Gtec NS3000 Series, User Manual

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NS3000 UPS 60KVA~120KVA User Manual
37
7 Battery Float Charger is working in float charging mode
8
Battery
Discharge
Battery is discharging
9
Battery
Connected
Battery is connected already
10
Battery Not
Connected
Battery is not yet connected.
11
Maintenance CB
Closed
Manual maintenance breaker is closed
12
Maintenance CB
Open
Manual maintenance breaker is opened
13 EPO Emergency Power Off
14 Module On Less
Available power module capacity is less then the load capacity.
Please reduce the load capacity or add extra power module to
make sure that the UPS capacity is big enough.
15 Generator Input Generator is connected and a signal is sent to the UPS.
16 Utility Abnormal
Utility (Grid) is abnormal. Mains voltage or frequency exceeds
the upper or lower limit and results in rectifier shutdown. Check
the input phase voltage of rectifier.
17
Bypass
Sequence Error Bypass voltage Sequence is reverse. Check if input power
cables are connected correctly.
18
Bypass Volt
Abnormal
This alarm is triggered by an inverter software routine when
the amplitude or frequency of bypass voltage exceeds the limit.
The alarm will automatically reset if the bypass voltage
becomes normal.
First check if relevant alarm exists, such as “bypass circuit
breaker open”, “Byp Sequence Err” and “Ip Neutral Lost”. If
there is any relevant alarm, first clear this alarm.
1. Then check and confirm if the bypass voltage and frequency
displayed on the LCD are within the setting range. Note that
the rated voltage and frequency are respectively specified by
“Output Voltage” and “Output Frequency”.
2. If the displayed voltage is abnormal, measure the actual
bypass voltage and frequency. If the measurement is
abnormal, check the external bypass power supply. If the alarm
occurs frequently, use the configuration software to increase
the bypass high limit set point according to the user’s
suggestions
19
Bypass Module
Fail Bypass Module Fails. This fault is locked until power off. Or
bypass fans fail.
20
Bypass Module
Over Load Bypass current is over the limitation. If bypass current is under
135% of the rated current. The UPS alarms but has no action.
21
Bypass Over
Load Tout
The bypass overload status continues and the overload times
out.
22 Byp Freq Over This alarm is triggered by an inverter software routine when