Ingersoll-Rand Doosan HP675WCU-T3, Руководство по эксплуатации и техническому обслуживанию

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Operation & Maintenance Manual Electrical
96 Book 22826226
Electrical System
The electrical system consists of the wiring harnesses and associated electrical devices such
as relays, switches, lights, solenoids and alarm horn.
The schematic diagrams show the connections for these harnesses.
The electrical circuits are protected using ATC style fuses. A fuse should only be replaced with
one of the same rating. Replacing a fuse with one of a larger rating could lead to harness
damage. If a fault occurs and the circuit does not have the appropriate size fuse, wires could
be burned in the harness and damage other circuits.
Trouble Shooting Flow Chart
Control panel key is turned to
“ON” position, WEDGE
controller annunciator lamps
and 4 digit LED display do not
come on. Check F1 fuse
Check operation of switch S1
Check wiring from S1 to WEDGE controller
Check battery voltage, Ensure battery disconnect
switch is turned ON
WEDGE controller
annunciator lamps and 4 digit
LED display initialize OK but
alternator lamp and engine oil
pressure lamps do not blink. J1939 CAN communications not working
Check for 24 VDC key switch at engine, CAN network
wiring problem
Ensure 24VDC power to engine ECM
Check connector pins
Engine cranks but will not
start Ensure key switch (24VDC) at engine
Frozen fuel cooler or associated piping
Estop Button pressed (ESA units) or
Estop jumpers not making connection
Clear active engine fault code
Engine does not crank when
key turned to crank position Check switch S1
Check relay K1
Check starter solenoid
Check starter motor
Check WEDGE output to K1 relay
Check battery voltage
Compressor fails to load
when “Service Air” switch
pressed Check Run/Start valve operation
Verify frequency throttle signal at engine
Check “Service Air” switch operation