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Modbus 485 and Modbus IP Protocols - UPS Systems
Liebert
®
IntelliSlot
®
Modbus/BACnet IP 122
Table 42 Liebert APM
™
, Liebert NXC
™
, Liebert NXR
™
- Glossary
Data Label Data Description
Battery Auto Test In Progress Automatic battery test is in progress
Battery Capacity Low Battery capacity is low
Battery Charging Error The battery is not charging properly
Battery Charging Inhibited Battery charging is inhibited due to an external inhibit signal
Battery Converter Failure
Battery converter failure. This is a summary event caused by one or more power
sub-modules in a UPS module.
Battery Discharging The battery is discharging
Battery Equalize The rectifier output voltage is increased to equalize the battery voltage level.
Battery Low The calculated battery time remaining has reached the low battery threshold
Battery Not Qualified
The UPS battery voltage is not qualified. This event will be detected even in the
absence of battery disconnect or when it is open.
Battery Over Temperature A battery temperature sensor is reporting a value above a threshold
Battery Temperature for Cabinet The battery temperature for a cabinet
Battery Terminals Reversed
The measured battery voltage is a negative value due to reverse battery terminal
connections.
Battery Time Remaining The calculated available time on battery
Battery Volts for Cabinet The voltage between the positive and negative battery terminals of a battery cabinet
Bypass - Excess Auto Retransfers
The number of auto retransfers, from bypass to inverter, has exceeded the maximum
for a specified time interval
Bypass Input Frequency The bypass input frequency
Bypass Input Voltage RMS A-N The bypass input RMS voltage between phase A and Neutral
Bypass Input Voltage RMS B-N The bypass input RMS voltage between phase B and Neutral
Bypass Input Voltage RMS C-N The bypass input RMS voltage between phase C and Neutral
Bypass Not Available A problem associated with the bypass has been detected
Bypass Static Switch Unavailable The static bypass switch is off, and unable to operate
DC Bus Abnormal The system has detected an abnormal DC Bus Voltage.
DC Bus Current
The current at the battery input terminals. In charging mode, the current will be a
positive value. In discharging mode, the current will be a negative value
Equipment Over Temperature Equipment over temperature summary event
Fuse Failure A summary event indicating one or more fuse failures
Inlet Air Temperature The temperature of the inlet air
Internal Communications Failure
The control has detected a communication failure of a component on the internal
communication bus
Inverter Failure Inverter failure - inverter output is off
Inverter On/Off State inverter on/off state
Inverter Overload Phase A Inverter is operating with an overload on phase A
Inverter Overload Phase B Inverter is operating with an overload on phase B
Inverter Overload Phase C Inverter is operating with an overload on phase C
Inverter SCR Open
The system has detected an open across one or more inverter static switch Silicon
Controlled Rectifiers.
Inverter Shutdown - Overload The inverter has shutdown due to a sustained overload
Inverter Static Switch SCR Short
The system has detected a short across one or more inverter static switch Silicon
Controlled Rectifiers (SCR)
LBS Inhibited The system has detected that conditions to perform Load Bus Sync are not satisfied
Load Impact Transfer On bypass as result of load impact.