Avr Parameters - Leroy-Somer Nidec R180 Installation And Maintenance Manual

Electric Power Generation

2 - AVR PARAMETERS

UFRO selection link
Open - 60Hz operating mode.
Closed - 50Hz operating mode.
UFRO potentiometer
45Hz to 55Hz in 50 Hz mode.
55Hz to 65Hz in 60 Hz mode.
Voltage
The working voltage is set by the
potentiometer marked "V".
Droop
The quadrature droop is set by the
potentiometer marked "Droop".
Auxiliary input and external potentio-
meter range
The auxiliary input range is set by the
potentiometer marked "Acc".
Installation and maintenance
R180
AVR
This potentiometer sets the maximum
voltage range for the external potentiometer
or the auxiliary input range.
Stability
This potentiometer is used to set the
alternator output voltage stability. Turning it
clockwise increases the speed. The setting
is reached when the stability potentiometer
position (set CW) allow to be at the starting
of a voltage instability, then set the
potentiometer 1 turn below (set CCW).
Indications
- Over Excitation limit
- Loss of sensing voltage
- UFRO
5599 en - 2020.07 / f
OVER EXC.
UFRO
SL
UFRO
STABILITY
ACC
V ADJ
+/-4.5V DC
0V
5