Toro Greensmaster eTriFlex 3360 Service Manual page 145

Testing the SC8: Lithium-Ion Battery Controller (Model 04590) (continued)
g312559
1. Lithium-Ion battery controller (BMS) 4.
2. Positive (+) terminal (power supply
positive (+) cable)
3. B+ terminal (positive (+) battery
cable)
Removing and Installing the SC8: Lithium-Ion Battery Controller (Model 04590)
Greensmaster® eTriFlex 3360 and 3370
19239SL Rev B
M-S terminal (battery interface
harness)
5. B- terminal (negative (-) battery
cable)
6. Negative (-) terminal (power supply
negative (-) cable)
•
With he batteries connected to the BMS, the battery pack voltage can be
tested across the BMS B+ and B- terminals.
•
With he batteries connected to the BMS, signal voltage from the BMS to the
key switch can be tested at the controller wire harness connector P12 pin
6 and the BMS B- terminal.
•
An audible "Click" should come from the BMS shortly after the key switch is
set to the O position. The "Click" sound indicates the contactor inside the
N
BMS has closed and battery power should be available to the machine.
•
Once the BMS internal contactor has closed, battery pack voltage can be
tested across the BMS positive (+) and negative (–) terminals.
•
If CAN bus communication with the controller is suspect, the CAN bus wiring
should be checked for corrosion or damage and cleaned or repaired as
necessary. The lithium-ion battery controller CAN bus transceiver can also
be tested if necessary using the controller wire harness connector P12 pins 3
and 4; refer to Testing Devices (Nodes) on the CAN bus (page
To prevent accidentally shorting a disconnected battery cable across
other components or tools, insulate the battery cable terminal with
a 76 mm (3 inch) length of 1/2 inch internal diameter rubber hose
immediately after disconnecting the cable.
Figure 48
IMPORTANT
Page 5–41 Electrical System: Testing the Electrical Components
7. COM terminal (machine wire
harness)
8. Controller wire harness connector
5–32).