CONTROL PANEL (TYPE 1)
SYSTEMS OPERATION
GENERATOR MOUNTED CONTROL PANEL
(TYPE 1 - PRIOR TO CATERPILLAR PARTS SERVICE)
INTRODUCTION
The uses of the generator mounted control panel are:
To help control the electric power made by the
generator set
To monitor (check) the operation of the generator set.
To help protect the generator set from damage caused
by low oil pressure, high coolant temperature, overspeed
and overcrank.
To help with the transfer of electrical load to and from
the generator set.
To help parallel two or more units onto the same bus.
IDENTIFICATION
The location of the control panel is on the top of the
regulator housing. Identification of some of the control
panel components is given on black plastic plates. The
position of control panel switches is also given on these
plates. The control panel has an eleven place model
number on the panel nameplate.
NOTE: Parts for this control panel
are
not
serviced
by
Caterpillar
Tractor Company.
WIRING
Wiring diagram No. 1 shows wiring connections for
control panels made before the remote Annunciator
panel and Prealarm module were available through
Caterpillar.
Wiring diagram No. 2 shows wiring connections for
control panels made after remote Annunciator panel
3N7325 and Prealarm module 3N5569 were available
through Caterpillar.
wiring diagram No. 3 is for packaged generator sets
with a two element speed switch (OSS and USS) in
place of overspeed switch (OS).
NOTE: A photograph of the panel is
shown after wiring diagram No. 2.
MAXIMUM RECOMMENDED TOTAL BATTERY
CABLE LENGTH
CABLE
DIRECT ELECTRIC STARTING
SIZE
12 Volt
24-32 Volt
0
4 ft. (1.2 m)
15 ft. (4.6 m)
00
5 ft. (1.5 m)
18ft. (5.5m)
000
6 ft. (1.8 m)
21 ft. (6.4 m)
0000
7.5 ft. (2.3 m)
27 ft. (8.2m)
COLOR CODE
B
-
black
W
-
white
R
-
red
PU
-
purple
W/B
-
white with black stripe
O
-
orange
BR
-
brown
BL
-
blue
LT GR
-
light green
The number after the color is the recommended wire
size
149
