Chapter 5: Electrical System - Toro Greensmaster e1021 Service Manual

Table of Contents
General Information .............................................................................................................................. 5-2
Operator's Manual.............................................................................................................................. 5-2
Electrical Schematics and Diagrams.................................................................................................. 5-2
Connecting the Lithium Battery Pack ................................................................................................. 5-3
Electrical System Operation .................................................................................................................. 5-4
Battery Charging ................................................................................................................................ 5-4
Start Process ..................................................................................................................................... 5-5
Run Process ...................................................................................................................................... 5-5
CAN-bus Communications................................................................................................................. 5-6
Toro Electronic Controller (TEC) ........................................................................................................ 5-7
Lithium-Ion Battery Controller (BMS) ................................................................................................. 5-8
InfoCenter Display ........................................................................................................................... 5-10
Adjustments......................................................................................................................................... 5-20
Traction Bail Proximity Sensor ......................................................................................................... 5-20
Testing the Electrical Components....................................................................................................... 5-21
Fuses ............................................................................................................................................... 5-22
CAN bus........................................................................................................................................... 5-24
Toro Electronic Controller (TEC) ...................................................................................................... 5-26
Lithium-Ion Battery Controller (BMS) ............................................................................................... 5-28
Electric Motor ................................................................................................................................... 5-30
Key Switch ....................................................................................................................................... 5-31
Throttle Potentiometer and Clutch Bail Potentiometer...................................................................... 5-33
Main Contactor................................................................................................................................. 5-36
CAN-bus Terminator Resistor .......................................................................................................... 5-39
Relay................................................................................................................................................ 5-40
Service and Repairs ........................................................................................................................... 5-42
Electric Motor ................................................................................................................................... 5-42
Servicing the Electric Motor ............................................................................................................. 5-44
Lithium-Ion Battery Controller (BMS) ............................................................................................... 5-47
Lithium-Ion Battery Pack .................................................................................................................. 5-50
Greensmaster ® e1021/e1026
20246SL Rev A
Electrical System
Page 5-1
Chapter 5
Electrical System