Toro Greensmaster eTriFlex 3360 Service Manual page 140

Testing the Front Traction Motor Controllers (continued)
Electrical System: Testing the Electrical Components
1. Park the machine on a level surface, lower the cutting units and set the key
switch to the O position.
FF
2. Set the function control switch to the N
3. Sit in the operator seat and set the key switch on the O
4. Access the InfoCenter Diagnostics > Traction > Inputs screen.
g292803
5. 48V system voltage should be present at the traction motor controller logic
circuit TRXN # Logic V.
• If – – – appears, the controller is not communicating on the CAN bus.
Voltage must be present at the controller logic circuit before communication
can occur on the CAN bus.
If voltage is not present at the logic circuit, the logic circuit is damaged.
The circuit wiring should be checked for corrosion or damage and
cleaned or repaired as necessary.
If logic voltage is present at the controller, and CAN bus communication
is suspect, the CAN bus circuit is damaged. The CAN bus wiring
should be checked for corrosion or damage and cleaned or repaired
as necessary. The traction motor controller CAN bus transceiver can
also be tested if necessary; refer to
CAN bus (page
• Traction motor speed should be displayed while the traction motors are
engaged TRXN # Speed. Individual traction motor speed is related to
the current turning radius (RDS).
6. Locate the front traction motor controller and disconnect it from the machine
wire harness. Check the controller connector and the harness connector
for damage or corrosion and clean or repair as necessary. Ensure all the
connector pins are equally seated in the connector body.
7. If the InfoCenter diagnostics inputs report normally and traction motor
operation is an issue, test the traction motor; refer to
(page 5–43).
8. If replacing the traction motor controller is necessary, update the machine
software; contact an Authorized Toro Distributor for assistance.
9. Calibrate the front traction motors before returning the machine to service;
refer to Calibrating the Front Traction Motors (page
EUTRAL
Figure 45
(machine turning to the left)
Testing Devices (Nodes) on the
5–31).
Page 5–42
position.
position.
N
Front Traction Motor
5–44).
Greensmaster® eTriFlex 3360 and 3370
19239SL Rev A