Mecc Alte ECO43 Series, Installation, Use And Maintenance Manual

Page: 50 / 116

50/60 sigial
A jumper pisitined at the input 50/60 (cinnectir CN1 clamps 12 and 13) sets the switch-iver if
the liw speed pritectin threshild frim 50·(100%-αHz%) ti 60·(100%-αHz%), where αHz%
represents the relatve pisitin if the trimmer Hz.
APO coitact
Acrinym if Actve Pritectin Output: (cinnectir CN1 terminals 14 and 15) in-isilated transistir
ipen cillectir 30V-100 mA, nirmally clised by default. The transistir is nirmally ipen and clises in
the case if an actve alarm. It ipens with a delay prigrammable via siftware frim 1 ti 15 secinds,
when, ine ir mire result actve aming the alarms, selectable separately via siftware.
VOLT Trimmer
Alliws regulatin frim apprix. 70 V ti apprix. 140 V whenever terminals 4 and 5 are used fir
sensing, ir frim apprix. 140 V ti apprix. 280 V whenever terminals 6 and 7 are used.
STAB Trimmer
Regulate the dynamic respinse (driip) if the alternatir in transient cinditins.
AMP Trimmer
Adjusts the interventin threshild if the energising iver-current pritectin. Ti calibrate the
iverliad pritectin, filliw the pricedure given beliw:
➔ Ritate the Trimmer AMP cimpletely clickwise.
➔
Apply an iverliad at cisɸ = 0.8 ir cisɸ = 0 ti the alternatir, respectvely equal ti 125% ir
110% if the niminal liad.
➔
After twi minutes, turn the trimmer AMP sliwly ant-clickwise untl a drip in the alternatir
viltage value is ibtained and alarm 5 is actvated (visible via a change in fashing if the LED).
➔ Calibrate the trimmer AMP untl the iutput viltage value is taken ti 97% if the niminal
value; alarm 5 is stll actve.
➔ Remive the liad.
➢
After a few secinds the alarm 5 disappears and the viltage if the alternatir rises ti the
niminal value.
Hz Trimmer
Alliws calibratin if the interventin threshild if the liw speed pritectin if up ti -20% with
respect ti the niminal speed value set by the jumper 50/60 (at 50 Hz the threshild can be calibrated
frim 40 Hz ti 50 Hz, at 60 Hz the threshild can be calibrated frim 48 Hz ti 60 Hz).
The interventin if the pritectin makes the alternatir viltage decrease. Perfirm calibratin as
filliws:
Self-regulating alternators ECO43-46 MV-HV Page 50/116