Emerson FPC Manuel D’Utilisation

Upon occurrence of a transformer overtemperature condition, the “Alarm Present/Silence” switch will 

become illuminated and the audible alarm will be activated. Pushing the “Alarm Present/Silence” 

switch will silence the audible alarm. The cause of the overtemperature condition should be investi-

gated and corrected. Possible causes include transformer overload, excessive non-linear loading, inade-

quate ventilation, high or low input voltage, or monitoring malfunction. Failure to correct the 

overtemperature condition may result in an automatic system shutdown due to the second stage of 

overtemperature sensing. After correction of the alarm condition, the alarm will automatically reset.

Monitored Parameters - A 4 x 20 character LCD is provided to indicate the input voltages (line-to-

line), output voltages (line-to-line and line-to-neutral), output currents (each phase, neutral and 

ground), output voltage THD, output current THD, crest factor, K-factor, output kVA, kW, kWH, 

power factor, percent load and output frequency. Pressing the Scan switch will activate the 

“Autoscan” mode where all monitored parameters are sequentially displayed automatically. Momen-

tarily pressing the “Hold/Sequence” switch interrupts the “Autoscan” mode. Pressing the “Hold/ 

Sequence” switch allows manual selection of the sequentially displayed parameters.

Liebert FPC

EMERGENCY 
POWER
OFF

ALARM 
PRESENT 
SILENCE

Liebert FPC

EMERGENCY 
POWER
OFF

ALARM 
PRESENT 
SILENCE