Fault 59: Line Contactor Closed - Toro Greensmaster TriFlex 3300 Manual

Fault 59: Line Contactor Closed

InfoCenter Display:
Fault Description
This fault is reported when the difference between the bus voltage and keyswitch voltage is less than 5 volts
when the contactor should be open. This fault indicates a failure associated with the 48 V contactor or the
contactor control circuit.
Circuit Description
The main contactor exists in the 48 V system to connect the 48 V battery pack to the starter/generator (S/G) and
the cutting reel motors. The S/G monitors the voltage on both sides of the contactor and determines when
the main contactor is closed.
Recommended Service Actions
Step 1: Verify that the fault repeats.
1. Clear the system faults from the InfoCenter. Refer to
2. Operate the machine.
Pass The fault did not repeat. Go to
Note:
If the fault does not repeat, an isolated event has occurred.
Fail The fault repeated. Go to Step 2.
Step 2: Test the main contactor.
1. Go to Preparing for Troubleshooting and/or Testing (page 20)
2. Locate the main contactor underneath the left-hand cover assembly (
_____FAULT #59____
LINE CONTACTOR
FAILED CLOSED
Clearing Faults from the InfoCenter (page
Returning the Machine to Service (page 21)
160
and follow the steps listed.
and follow the steps listed.
Figure 86 and
19).
Figure 87).