Fault 86: 48 V Bus Overvoltage - Reel Motor 1 - Toro Greensmaster TriFlex 3300 Manual

Fault 86: 48 V Bus Overvoltage – Reel Motor
1
InfoCenter Display:
Fault Description
Note:
Reel motor 1 is in the center position.
This fault is reported when the cutting reel motor measures a system voltage greater than 67.5 V. When
this fault reports, the PTO is disabled.
Circuit Description
Each cutting unit has an electric cutting reel motor that contains an internal controller. The internal controller
measures 48 V bus power.
If only 1 cutting reel motor is reporting a bus overvolt fault, the problem is likely to be with the 48 V power
connection to that cutting reel motor.
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: Swap cutting reel motors between cutting units.
All of the cutting reel motors are identical.
1. Go Preparing for Troubleshooting and/or Testing (page 20)
2. Unplug the 48 V battery disconnect to prevent unexpected cutting unit operation. Refer to
Disconnecting the 48 V Power to the Cutting Reel Motors (page
3. Swap cutting reel motor 1 with a different cutting unit. You can obtain more information in the cutting reel
motor section of Chapter 6 in the Greensmaster TriFlex 3320/3420 Service Manual.
4. Plug in the 48 V battery disconnect. Refer to
Cutting Reel Motors (page 18)
5. Operate the machine.
6. Turn off the machine.
_____FAULT #86____
1 - 48 V POWER
BUS OVER V
Clearing Faults from the InfoCenter (page
Returning the Machine to Service (page 21)
Connecting and Disconnecting the 48 V Power to the
210
and follow the steps listed.
and follow the steps listed.
18).
19).
Connecting and