Fault 128: Short Detected - Unknown Reel Motor - Toro Greensmaster TriFlex 3300 Manual

Fault 128: Short Detected – Unknown Reel
Motor
InfoCenter Display:
Fault Description
One of the three reel motors has an internal short circuit. The TEC is unable to define which motor has the
problem.
Circuit Description
The three cutting reel motors in the machine are identical 48 V, 1100 watt, brushless, permanent magnet
motors. Each motor has its own integral inverter and on-board 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: Disconnect all 3 reel motors and recheck for the fault.
This step will show whether the fault is caused by a reel motor.
1. Go to Preparing for Troubleshooting and/or Testing (page 20)
2. Disconnect 48 V power from the cutting units by separating the cutting unit power connectors. This
prevents unexpected operation of cutting units. Refer to
to the Cutting Reel Motors (page
3. Locate and disconnect the 2 cutting reel motor connectors from the e-reels harness connectors P17
and P18 for cutting unit 1.
_____FAULT
UNKNOWN -
SHORTED
Returning the Machine to Service (page 21)
18).
(Figure 167).
300
#128____
Clearing Faults from the InfoCenter (page
and follow the steps listed.
Connecting and Disconnecting the 48 V Power
19).
and follow the steps listed.