AS RTP9007S, Operation Manual

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English
tester RTP9007S
28
Indicial
notation
Functional purpose
Voltage
regulator
type
Output
terminal
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
(Opcja
regulatoró
w)
(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.