3-16
CPU CONTROLLER
5)
To match the engine torque with the pump absorption torque, CPU
controller varies EPPR valve output pressure, which control pump
discharge amount whenever feedbacked engine speed drops under
the reference rpm of each mode set.
Three LED lamps on the CPU controller display as below.
MODEL:R
OBE
X 200W
-3
PAR
T NO:21ER
-32110
LED
R
Y
G
(1)
(2)
LED lamp
G is turned ON
G and R are
turned ON
G and Y are
turned ON
Three LED are
turned OFF
Trouble
Normal
Trouble on CPU or ROM
Trouble on serial
communication line
Trouble on CPU
controller power
-
Change the controller
Check if serial communication
lines between controller and
cluster are disconnected
Check if the input power wire
(24V, GND) of controller is
disconnected
Check the fuse
Service
20W03CD18
G : green, R : red, Y : yellow
SERVICE METER
This meter shows the total operation hours of the machine.
Always ensure the operating condition of the meter during the
machine operation. Inspect and service the machine based on hours
as indicated in chapter 6, maintenance.
7)
(1)
(2)
13033CD72
6) PROLIX RESISTOR(Option)
CN-19B
CN-19A
CN-19
Prolix
resistor
50073CD45
This resistor is used to continuous working in case of malfunction of
the CPU controller.
Never connect connector CN-19 with connector CN-19B when
CPU controller is in normal operation.
Normal
: CN-19 connect with connector CN-19A
Emergency : CN-19 connect with connector CN-19B
(1)
CPU controller communicates the machine data with Lap top
computer through RS232 connector.
(1)
RS232 SERIAL CONNECTOR
45073CD59
8)
