Emerson MODBUS 485 Manuel D’Utilisation

Load Sharing Fault 

Difference between any phase inverter current of unit and the relevant average output 

current of parallel system is more than a specific percent of nominal current. 

Loss of Redundancy 

The multi-module collection doesn't have enough modules to redundantly support the 

load 

Main Battery Disconnect Open 

Main battery disconnect is open 

Mains Input Neutral Lost 

Loss of neutral in the input source is detected. 

Maintenance Bypass Breaker (MBB)  Maintenance bypass breaker (MBB) 
MMS On Battery 

The multi-module system is on battery 

MMS Output Apparent Power 

The sum total apparent power of all system output modules 

MMS Output Power 

The sum total power of all system output modules 

MMS Over Capacity 

The multi-module system load is larger than the apparent power limit setting.

MMS Overload 

Multi-module system overload 

On Generator 

A generator is supplying the power to the system 

Output Current Crest Factor Phs A

Output current crest factor of Phase A. 

Output Current Crest Factor Phs B 

Output current crest factor of Phase B. 

Output Current Crest Factor Phs C 

Output current crest factor of Phase C. 

Output Load on Maint. Bypass 

The output power is supplied by the maintenance bypass 

Parallel Comm Warning 

Parallel communication bus warning 

Power Sub Module Fault 

One or more failures detected in power module, inverter or rectifier. 

Power Supply Failure 

Power supply failure 

Rectifier Failure 

Rectifier failure - rectifier is off 

System Date and Time 

The system date and time 

System Fan Failure 

System fan failure - one or more fans have failed 

System Input Current Imbalance 

System Input Currents are Imbalanced 

System Input Frequency 

The system input frequency 

System Input Phs Rotation Error 

The power conductors on the input line are not wired to the UPS in the sequence 

preferred for the rectifier (A-B-C) 

System Input Power Factor Phs A 

The system input power factor for Phase A 

System Input Power Factor Phs B 

The system input power factor for Phase B 

System Input Power Factor Phs C 

The system input power factor for Phase C 

System Input Power Problem 

The input is not qualified to provide power to the system 

System Input RMS A-B 

The System Input RMS Voltage between Phase A and Phase B 

System Input RMS A-N 

The System Input RMS Voltage between Phase A and Neutral 

System Input RMS B-C 

The System Input RMS Voltage between Phase B and Phase C 

System Input RMS B-N 

The System Input RMS Voltage between Phase B and Neutral 

System Input RMS C-A 

The System Input RMS Voltage between Phase C and Phase A 

System Input RMS C-N 

The System Input RMS Voltage between Phase C and Neutral 

System Input RMS Current Phase A  The system input RMS current for Phase A 
System Input RMS Current Phase B

The system input RMS current for Phase B 

System Input RMS Current Phase C

The system input RMS current for Phase C 

System Output Apparent Power

The sum total apparent power of all system output phases 

System Output Fault

A fault has been detected in the system output 

System Output Frequency

The system output frequency 

System Output Pct Power Phase A

The system output power on phase A as a percentage of the rated capacity