General Operation Problems (Model 04590)
For eTriFlex 3370 (model 04590) machines, a series of events occur to power up the machine prior to
operating the machine steering, traction, lift/lower, and cutting unit functions. The events are explained
here to assist with troubleshooting a machine that does not power up correctly. Many aspects of
machine operation are visible for troubleshooting using the InfoCenter; refer to
Display for Troubleshooting (page 3–39)
. Machine faults may also appear on the InfoCenter display to
assist in troubleshooting. If a machine has an issue that prevents the InfoCenter from powering up,
the InfoCenter will not be available to further troubleshoot the machine. The events in
bold
must
occur to power up the InfoCenter display.
Key Switch in the O
FF
Position:
•
A signal wire from the SC8: Lithium-ion battery controller (BMS) Pack Sig+ terminal provides a low
current 48 VDC signal to the key switch D terminal.
•
With the exception of the lithium-ion battery cables, the Pack Sig+ signal wire carries the only live
voltage on the machine when the key switch is in the O
FF
position.
Key Switch Set to the O
N
position:
1.
Key switch terminals D and E close:
A.
The Pack Sig+ signal voltage passes through the key switch to the BMS Ignition terminal
to wake the BMS.
B.
The BMS quickly polls the lithium-ion batteries condition. If the batteries are within
specification, the BMS energizes an internal contactor to supply 48V battery power
through the supply cables to the 48V battery disconnect.
Listen for the
“Click”
from the
BMS to quickly confirm internal contactor operation.
2.
The 48V battery disconnect must be connected:
A.
48V power passes through the 175A mega fuse located below the battery disconnect.
B. 48V should be available at the T6: precharge controller Logic input (connector P03 pin 6) to
wake up the precharge controller.
C. 48V should pass through the 5A fuse in the 48V fuse block under the operator’s seat and be
available at terminal 30 of the logic relay (connector P47 pin 1).
D. 48V bus should pass through the 30A fuse in the 48V fuse block under the operator’s seat and
be available to power the SC7: steering motor (connector P46 pins 3, 4 and 5). This is the 48V
bus power supply for the steering motor controller.
E. 48V power should be available at the main contactor and the traction motor contactor E terminal
(left side main terminal).
F.
48V should pass through the 10A fuse in the 48V fuse block under the operator’s seat an
be available at terminal 86 of the shutdown delay relay (connector P13 pin 5).
G.
48V should pass through the 10A fuse in the 48V fuse block under the operator’s seat an
be available at the 48 VDC/12 VDC converter input (connector P07 pin 4). If the converter
is functioning properly, 12V should become available at the 48 VDC/12 VDC converter
output (connector P07 pin 2).
•
12V should pass through the 15A fuse in 12V fuse holder 1 under the right side cover
and be available at terminal 30 of the shutdown delay relay (connector P13 pin 1).
• If the 15A fuse in 12V fuse holder 1 is functioning, 12V should pass through the 2V fuse in 12V
fuse holder 1 and be available at the T1: primary controller Logic input (connector P01 pin 40)
to wake up the primary controller.
3.
Key switch terminals B and C close (creating a path to ground):
A. The key switch provides a path to ground for the T6: precharge controller Key Start and Key
Run inputs (connector P02 pins 1 and 2). These connections allow the precharge controller to
start the precharge function.
B.
The key switch provides a path to ground for terminal 85 of the shutdown delay relay
(connector P13 pin 2), energizing the relay coil.
Greensmaster® eTriFlex 3360 and 3370
Page 3–43
Troubleshooting: General Operation Problems
19239SL Rev B
