Fault 16 Contactor Fault
InfoCenter Display:
Contactor Fault
Fault Description
The main contactor remains energized due to a stuck coil or damaged internal primary contacts.
Circuit Description
The main contactor connects the battery pack and the electric motor. The TEC-2401 circuitry monitors the voltage at several
locations to ensure that the contactor is working properly and the voltage is correct at all components for operation.
Conditions for Setting the Fault
The voltage at the motor side of the contactor is not discharging properly. This can happen at startup or shutdown.
Recommended Service Actions
Step 1:
Verify that the fault repeats.
1.
Clear the InfoCenter fault log. Refer to
Clearing the InfoCenter Fault Log (page 19)
.
2.
Disconnect the battery pack for 30 seconds. Refer to
Disconnecting the Battery Pack (page 17)
.
3.
Connect the battery pack. Refer to
Connecting the Battery Pack (page 17)
.
4.
Start and operate the machine. Refer to the
eFlex Operator’s Manual
.
Pass
The fault did not repeat. Go to
Returning the Equipment to Service (page 19)
and follow the
steps listed.
Note:
If the fault does not repeat, a false detect event may have occurred.
Fail
The fault repeated. Go to step 2.
Step 2:
Check the charge level of the battery.
Check the InfoCenter LCD screen to ensure that the charge level is adequate. If the battery indicator does not show at least 1
full block, connect the battery charger to the battery pack and charge the battery pack to at least 40% capacity.
Step 3:
Remove 2 access covers to aid troubleshooting.
Performing these steps provides access to connectors on the wire harnesses.
1.
Remove the console cover. Refer to
Console Cover (page 19)
.
2.
Remove the power center cover. Refer to
Power Center Cover (page 20)
.
Step 4:
Use a multimeter to check the main contactor and the main contactor
coil.
Note:
You will find additional wire harness and connector information in
Appendix A: Wire Harnesses (page 113)
and
Appendix B: Toro Electronic Controller Connections (page 135)
.
Note:
Inspect the wire harnesses for damage and wear while checking the items in the following steps. Refer to
Wire Harnesses and Component Connector Assemblies (page 13)
.
Refer to the
eFlex Service Manual
Chapter 4, Electrical System, Main Contactor section for component testing.
1.
Disconnect the battery pack. Refer to
Disconnecting the Battery Pack (page 17)
.
2.
Disconnect the wires from the main contactor, terminals J01 and J02 (
3.
Verify no short condition between main contactor terminals J01 and J02.
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