97
Service Manual – SW5500, FLOORTEC R 985
20 - Wheel System, Traction
Drive Board Error Codes Table
Drive Board Error Codes
CODE - Description
(shown on multifunction display)
Meaning
First procedure
If the problem persists
TR AL.8
WATCHDOG
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.13
EEPROM KO
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.17
LOGIC FAILURE #3
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.18
LOGIC FAILURE #2
Motor phase voltages alarm
on starting.
Check for damage or short
circuits into the power wires
between the drive board and
the drive motor (M0).
Replace the Main Machine
Controller.
TR AL.19
LOGIC FAILURE #1
Battery voltage below 9.0V or
above 35.0V.
Check the battery voltage.
It could happens also if the
machine is moved down a
ramp at high speed releasing
quickly the drive pedal, if
the battery is too small or
overcharged.
Substitute the batteries if
defective.
In case of LPG / D versions
and issue related to ramps,
use a bigger capacity battery.
TR AL.30
VMN LOW
Low voltage on motor
phases.
Check the battery voltage.
Replace the Main Machine
Controller.
TR AL.31
VMN HIGH
High voltage on motor
phases – Possible short
circuit on b or no
battery –.
Check for damage or short
circuits into the power wires
between the drive board
and the drive system motor
(M0) and check the B+ and
B- power connections to the
drive board.
Replace the Main Machine
Controller.
TR AL.37
CONTACTOR CLOSED
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.38
CONTACTOR OPEN
Contactor not closing.
Check the functionality of
the Drive Wheel Controller
contactor (ES2).
Check the wires between the
Drive Wheel Controller and
the Drive Wheel Controller
contactor (ES2).
Check the main drive system
fuse (F3).
TR AL.53
STBY I HIGH
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.60
CAPACITOR CHARGE
Internal capacitor charging
failed.
Check the battery voltage
under load. Substitute the
batteries if defective.
Replace the Main Machine
Controller.
TR AL.62
TH. PROTECTION
High internal temperature.
Check the current drawn into
the drive motor (M0).
Check the proper installation
of the drive board on the
chassis, check for excess dirt
in the steering column.
Replace the Main Machine
Controller.