MSG Equipment MS016 - Page 34

English
Tester MS016
34
Indicial
notation
Functional purpose
Alternator/
Voltage
regulator
type
Output
terminal
P
Output of one of alternator stator windings. Used
for measuring alternator driving voltage
ST1; ST2
S
STA
Stator
W
(Wave) Output of one of alternator stator
windings for connection of a tachometer in diesel
engine cars
N
(Null) Output of average stator winding point.
Usually used to control operability indicator lamp
of the alternator with mechanical voltage
regulator
D
(Dummy) Blank, no connection, mostly in
Japanese cars
N/C
(No connect) No connection
LRC
(Options of
voltage
regulators)
(Load Response Control) Function of voltage
regulator response delay on load increase on an
alternator. Delay duration ranges from 2.5 to 15
seconds. On increasing the load (lights, cooler fan
on), a voltage regulator adds driving voltage
smoothly ensuring stability of engine drive
rotation. Remarkably seen under idle running.