Fault 49: Fault Latch - Phase Overcurrent - Toro Greensmaster TriFlex 3300 Manual

Fault 49: Fault Latch – Phase Overcurrent
InfoCenter Display:
Fault Description
This fault is reported when the starter/generator (S/G) controller senses excessive current draw (greater than
240 amps) through the motor/generator or the controller itself.
Circuit Description
The starter/generator is a 48 V, air cooled, brushless, permanent magnet device. The starter/generator has
its own controller.
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 S/G for proper function.
The InfoCenter will display the generator voltage whenever the engine is running.
1. Start the machine.
2. Using the InfoCenter, check the 48 V system voltage.
Pass The system displayed generator voltage between 32 V and 67.5 V. Go to Step 5.
Fail The system voltage was lower than 32 V or higher than 67.5 V. Replace the Starter/Generator
following the procedure in Chapter 6 of the Greensmaster TriFlex 3320/3420 Service Manual.
Step 3: Inspect the internal S/G connections between the generator
and the controller.
These connections require a visual inspection.
1. Remove the generator from the machine. Refer to Generator Assembly Service in Chapter 6 of the
Greensmaster TriFlex 3320/3420 Service Manual and follow the generator assembly removal procedure.
2. Disassemble the generator to access the 3 internal S/G connections between the generator and the
controller. Refer to Chapter 6 of the Greensmaster TriFlex 3320/3420 Service Manual and follow the
generator disassembly procedure to access the electrical connections on top of the generator assembly.
Visually inspect the connections and wiring for damage and/or corrosion.
__ _FAULT #49
FAULT LATCH PHASE
OC
Clearing Faults from the InfoCenter (page
Returning the Machine to Service (page 21)
150
__ _
and follow the steps listed.
19).