Fault 45: 48 Volt Bus - Overvoltage - Toro Greensmaster TriFlex 3300 Manual

Fault 45: 48 Volt Bus – Overvoltage
InfoCenter Display:
Fault Description
This fault is reported when all four individual 48 V Bus component overvolt faults (starter/generator, cutting unit
1, cutting unit 2, and cutting unit 3) are active at the same time.
Circuit Description
All four 48 V devices are reporting a bus overvoltage fault. The electric cutting reel motors report this fault at
67.5 V, and the S/G reports this fault at 65 V. The bus voltage must be above 67.5 V for this fault to report.
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 battery voltage.
Refer to Chapter 6 of the Greensmaster TriFlex 3320/3420 Service Manual and follow the Battery Pack Service
procedure to test the batteries.
Pass The batteries all passed the voltage and load test. Go to Step 3.
Fail
Some or all of the batteries did not pass the voltage and load test. Replace all of the batteries. Go to
Returning the Machine to Service (page 21)
Step 3: Test the generator assembly for proper function.
1. Start the machine.
2. Using the InfoCenter, monitor the 48 V system voltage.
3. Generator voltage should maintain more than 32 V.
Pass The generator passed the function test. Go to Step 8.
Fail The generator could not maintain more than 32 V for a sustained period and failed the function
test. Go to Step 4.
____FAULT #45____
48 V SYSTEM
POWER BUS OVER V
Clearing Faults from the InfoCenter (page
Returning the Machine to Service (page 21)
and follow the steps listed.
142
19).
and follow the steps listed.