Can Bus Terminator Resistors - Toro Greensmaster eTriFlex 3360 Service Manual

CAN bus Terminator Resistors

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1. CAN B termination resistor at connector P60
2. CAN A termination resistor at connector P66
Greensmaster® eTriFlex 3360 and 3370
19239SL Rev B
The machine controllers communicate with each other on a Controller Area
Network (CAN) bus system. Controllers that operate on 12 VDC connect to the
12V side of the CAN bus (CAN A), while controllers that operate on 48 VDC
connect to the 48V side of the CAN bus (CAN B). The two sides of the CAN bus
communicate as one network through the use of a CAN bus Isolation Module.
The entire CAN bus is made up of two specially designed twisted wires. The
engineering term for these wires are CAN High (yellow wire) and CAN Low
(green wire). A 120 ohm CAN termination resistor is located at each end of
CAN A, and at each end of CAN B (4 total). Refer to
CAN bus testing procedures.
The CAN bus and the termination resistors are part of the machine wire harness.
•
One of the CAN A termination resistors is located to the left of the brake
actuator. This resistor is secured to the wire harness at connector P65.
•
The second CAN A termination resistor is located in the operator's console
under the InfoCenter display. This resistor is secured to the wire harness at
connector P66.
•
One of the CAN B termination resistors is located under the right side cover
below the relays. This resistor is secured to the wire harness at connector
P58.
•
The second CAN B termination resistor is located behind the step on the
left side of the machine. This resistor is secured to the wire harness at
connector P60.
Note: Refer to Appendix A (page A–1)
bus wiring.
Figure 89
3. CAN B termination resistor at connector P58
4. CAN A termination resistor at connector P65
for additional information on the CAN
Page 5–101 Electrical System: Testing the Electrical Components
CAN bus (page 5–30) for