Toro Reelmaster 5010- H Service Manual page 171

Fault Code
93 System bus voltage under 36 VDC has
disabled motor/generator (main contactor is
engaged)
94 System bus voltage over 67.5 VDC has
disabled #1 cutting unit
95 System bus voltage over 67.5 VDC has
disabled #2 cutting unit
96 System bus voltage over 67.5 VDC has
disabled #3 cutting unit
Reelmaster 5010- H
Fault Description
Page 5 - 31
Service Suggestions
Check to see if a pre- charge fault (fault 63)
has occurred
Check that main contactor is functional
Check the motor/generator connections
NOTE: If all 48 VDC components (motor/gen-
erator and cutting unit motors) have this fault,
system fault 29 will be displayed on the Info-
Center
If multiple cutting units are reporting this fault,
check 48 VDC batteries and motor/generator
operation
If 48 VDC batteries are at correct voltage with
engine OFF, consider connections between
motor/generator and motor/generator
controller are loose or faulty
If TEC controller has lost communication with
motor/generator, engine speed will not be
controllable and this fault may be displayed
NOTE: If all 48 VDC components (motor/gen-
erator and cutting unit motors) have this fault,
system fault 30 will be displayed on the Info-
Center
If multiple cutting units are reporting this fault,
check 48 VDC batteries and motor/generator
operation
If 48 VDC batteries are at correct voltage with
engine OFF, consider connections between
motor/generator and motor/generator
controller are loose or faulty
If TEC controller has lost communication with
motor/generator, engine speed will not be
controllable and this fault may be displayed
NOTE: If all 48V components (motor/generator
and cutting unit motors) have this fault, system
fault 30 will be displayed on the InfoCenter
If multiple cutting units are reporting this fault,
check 48 VDC batteries and motor/generator
operation
If 48 VDC batteries are at correct voltage with
engine OFF, consider connections between
motor/generator and motor/generator
controller are loose or faulty
If TEC controller has lost communication with
motor/generator, engine speed will not be
controllable and this fault may be displayed
NOTE: If all 48V components (motor/generator
and cutting unit motors) have this fault, system
fault 30 will be displayed on the InfoCenter
Electrical System